Razorback sucker Citations through 2005

(1359 citations)
 

 Jordan, D.S., B.W. Evermann and H.W. Clark. 1930. Checklist of fishes and fish-like vertebrates of North and Middle America north of the northern boundary of Venezuela and Columbia. U.S. Fish and Game Commission, Part II, Appendix 10:1-670
 

 Miller, R.R. 1949. Keys for the identification of the fishes of Arizona. University of Michigan, Museum Zoology 1949:1-8.
 

 Douglas, P.A. 1952. Notes on the spawning of humpback sucker, Xyrauchen texanus. California Fish and Game 38:149-155.
 

 Hubbs, C.L. and R.R. Miller. 1953. Hybridization in nature between the genera Catostomus and Xyrauchen. Papers of the Michigan Academy of Science, Arts and Letters 38:207-233.
 

 Jonez, A. and R.C. Sumner. 1954. Lakes Mead and Mohave investigations, a comparative study of an established reservoir as related to a newly created impoundment. Federal Aid Project F-1-R. Nevada Fish and Game Commission, Carson City. 186 pages.
 

 Winn, H.E. and R.R. Miller 1954. Native postlarval fishes of the lower Colorado River basin, with a key to their identification. California Fish and Game 40(3)273-285.
 

 Moeller, K.L., L.M. Malinowski, L.M. and J.F. Hoffecker. 1955. Analysis of potential impacts of Flaming Gorge Dam hydropower operations on archaeological sites. Argonne National Laboratory, Illinois. 99 pages.
 

 Miller, R.R. 1958. Origin and affinities of the freshwater fish fauna of western North America. Pages 187-222 in C.L. Hubbs, ed. Zoogeography. Publication 51, American Association for the Advancement of Science, Washington, D.C.
 

 Branson, B.A. 1961. Obervations on the distribution of nuptual tubercles in some catostomid fishes. Transactions of the Kansas Academy of Sciences 64:360-372.
 

 Andriano, D. 1963. Resume of the detoxification phase of the Green River rehabilitation project based on information presented at the 1963 session of the technical committee of the Colorado River management committee. 2 pages.
 

 Miller, R.R. 1964. Extinct, rare, and endangered American freshwater fishes. Proceedings of the 26th International Congress of Zoology 8:4-16.
 

 Miller, R.R. and C.H. Lowe. 1964. Fishes of Arizona. Part 2. Pages 133-151 In C.H. Lowe, ed. The Vertebrates of Arizona. The University of Arizona Press, Tucson.
 

 Minckley, W.L. 1965. Native fishes as natural resources. Committee on Desert and Arid Zones Research, Southwestern and Rocky Mountain Division, American Association for the Advancement of Sciences. J.L. Gardner, ed. Native plants and animals as resources in arid lands of the southwestern United States. Contribution number 8. Desert Research Institute, Nevada Southern University, Las Vegas.
 

 Binns, N.A. 1966. Effects of rotenone treatment on the fauna of the Green River, Wyoming. Oregon State University. 153 pages.
 

 Branson, B.A. and C.J. McCoy, Jr. 1966. Observations on breeding tubercles in Xyrauchen texanus (Abbott). Southwestern Naturalist 11(2):301.
 

 Binns, N.A. 1967. Effects of rotenone treatment on the fauna of the Green River, Wyoming. Wyoming Game and Fish Commission, Fishery Research Bulletin (1):1–114.
 

 Kinnear, B.S. and R.E. Vincent. 1967. Fishes and fish habitats in Black Canyon of the Gunnison National Monument.  Colorado State University, Fort Collins. 45 pages.
 

 Kramer, R.H. 1967. Green River fishes and invertebrates. Utah Cooperative Fishery Research Unit, Logan.
 

 Colorado Cooperative Fishery Unit. 1968. Annotated list of fishes native to the Colorado River Basin. Colorado State University, Colorado Cooperative Fishery Unit, Fort Collins. 12 pages.
 

 James, A.E. 1968. Lernaea (Copepod) infection of three native fishes from the Salt River basin, Arizona. Master’s thesis, Arizona State University, Tempe.
 

 Lennon, R.E. and B.L. Berger. 1970. Resume on field applications of antimycin A to control fish. U.S. Fish and Wildlife Service, Investigations in Fish Control 5(40):1-19.
 

 Vanicek, C.D., R.H. Kramer and D.R. Franklin. 1970. Distribution of Green River fishes in Utah and Colorado following closure of Flaming Gorge Dam. Southwestern Naturalist 14(3):297-315.
 

 Lockard, D.V., N.M. Wood and R.C. Allan.  1971. Statewide fisheries management: vulnerability of game fish to spearfishing, Lake Mead. Nevada Fish and Game Commission. 18 pages.
 

 Ponder, G. 1971. Senator Wash Reservoir survey - December 22-23, 1970. R.F. Management. California Department of Fish and Game, Blythe.
 

 Miller, R.R. and G.R. Smith. 1972. Fishes collected on the Grand Canyon survey, Lee's Ferry to Diamond Creek, August, 1968. 2 pages.
 

 Behnke, R.J. 1973. Humpback sucker, Xyrauchen texanus. U.S. Fish and Wildlife Service, Albuquerque, New Mexico.
 

 California Department of Fish and Game. 1973. Senator Wash Reservoir historic data: gill net survey. California Department of Fish and Game. 3 pages.
 

 California Department of Fish and Game. 1973. Senator Wash Reservoir historic data: water quality survey. California Department of Fish and Game. 1 page.
 

 California Department of Fish and Game. 1973. Senator Wash Reservoir historic data: bottom sampling. California Department of Fish and Game. 1 page.
 

 Holden, P.B. 1973. Distribution, abundance and life history of the fishes of the upper Colorado River basin. Doctoral dissertation, Utah State University, Logan. 59 pages.
 

 Stalnaker, C.B. and P.B. Holden. 1973. Changes in native fish distribution in the Green River system, Utah-Colorado. Proceedings of the Utah Academy of Science, Arts and Letters 50(1):25-32.
 

 California Department of Fish and Game. 1974. Inventory of the fish and wildlife resources, recreational consumptive use, and habitat in and adjacent to the upper 49 miles and ponded areas of the Coachella canal. California Department of Fish and Game.
 

 Holden, P., W. White, G. Somerville, D. Duff, R. Gervais and S. Gloss. 1974. Threatened fish of Utah. Proceedings of the Utah Academy of Sciences, Arts and Letters 51(2):46-65.
 

 Gustafson, E. 1975. Early development, adult sexual dimorphism, and fecundity of the razorback sucker, Xyrauchen texanus (Abbott). Final report. Lower Colorado River Basin Research Laboratory, Arizona State University, Tempe. 43 pages.
 

 Gustafson, E.S. 1975. Capture, disposition, and status of adult razorback suckers from Lake Mohave, Arizona. Arizona State University, Tempe.
 

 Holden, P.B. and C.B. Stalnaker. 1975. Distribution of fishes in the Dolores and Yampa River systems of the upper Colorado basin. Southwestern Naturalist 19(4):403-412.
 

 Minckley, W.L. 1975. An inventory of the aquatic biology of the Colorado River: I. Parker I and II Division in June-July 1974. Arizona State University, Tempe. 29 pages.
 

 Minckley, W.L. 1975. An inventory of the aquatic biology of the Colorado River: III. Palo Verde Division in January-April 1975. An addendum report on the smallmouth bass. Arizona State University, Tempe. 7 pages.
 

 Minckley, W.L. 1975. An inventory of the aquatic biology of the Colorado River: IV. Havasu Division. Interim report on the lower Moovalya Lake and associated aquatic environments. Arizona State University, Tempe. 29 pages.
 

 Sealing, C., G.B. Kidd, B. Burdick, R. Sutton, K. McMaster and M. Japhet. 1975. Regional fishery inventory: northwest region lake and stream studies. Project number F-030-R-11/ Job 04/Final. Colorado Division of Wildlife. 31 pages.
 

 Marshall, C.W. 1976. Inventory of fish species and aquatic environment of 15 backwaters of the Topock Gorge Division of the Colorado River. Inland Fisheries Administration report 76-4. California Department of Fish and Game. 98 pages.
 

 Sublette, J.E. 1976. Survey of the fishes of the San Juan River basin, with particular reference to the endangered species. U.S. Fish and Wildlife Service, Albuquerque, New Mexico. 9 pages.
 

 Suttkus, R.D., G.H. Clemmer, C. Jones and C. Shoop. 1976. Survey of fishes, mammals and herpetofauna of the Colorado River in Grand Canyon. Colorado River Research Program final report. Technical report no. 5. Grand Canyon National Park. 48 pages.
 

 U.S. Fish and Wildlife Service. 1976. Report on the Savery-Pot Hook Project.  U.S. Fish and Wildlife Service, Denver, Colorado. 39 pages.
 

 Wydoski, R.S., K. Gilbert, K. Seethaler and C.W. McAda.  1976. Annotated bibliography for aquatic resource management of the upper Colorado River ecosystem. Utah Cooperative Fishery Research Unit. 206 pages.
 

 Holden, P.B. 1977. Habitat requirements of juvenile Colorado River squawfish. U.S. Fish and Wildlife Service, Office of Biological Survey, Fort Collins, Colorado.
 

 Holden, P.B. 1977. Study of the habitat use and movement of the rare fishes in the Green River from Jensen to Green River, Utah, August and September, 1977. Final report.  BIO/WEST, Inc., Logan, Utah. 58 pages.
 

 Joseph, T.W., J.A. Sinning, R.J. Behnke and P.B. Holden. 1977. An evaluation of the status, life history and habitat requirements of endangered and threatened fishes of the upper Colorado River system. report 24, Part 2. U.S. Fish and Wildlife Service, Office of Biological Services, Fort Collins, Colorado. 184 pages.
 

 Langlois, D. 1977. Status of the razorback sucker and bonytail chub in western Colorado. Colorado Division of Wildlife Department of Natural Resources, Denver. 12 pages.
 

 McAda, C.W. 1977. Aspects of life history of three catostomids native to the upper Colorado River basin. Master's thesis, Utah State University, Logan. 104 pages.
 

 McAda, C.W., C. Philips, C.R.J. Berry and R.S. Wydoski. 1977. Survey of threatened and endangered fish in southeastern Utah streams. Utah Cooperative Fishery Research Unit, Logan.
 

 Prewitt, C.G. 1977. Catostomid fishes of the Yampa and White Rivers, Colorado. Colorado State University, Fort Collins. 100 pages.
 

 Sackschewsky, M.R. 1977. Threatened and endangered species evaluation for 75 licensed commercial nuclear power generating plants. Pacific Northwest Laboratory, Richland, Washington. 313 pages.
 

 U.S. Fish and Wildlife Service. 1977. Indexed, annotated bibliography of the endangered and threatened fishes of the upper Colorado River system. U.S. Fish and Wildlife Service Biological Services Program, Denver, Colorado. 169 pages.
 

 Wydoski, R.S., D.A. Smith, et al. 1977. Annual Conference Western Association of Game and Fish Commissioners and Western Division 1977. American Fisheries Society, Tucson, Arizona.
 

 Allan, R.C. and D.L. Roden. 1978. Fish of Lake Mead and Lake Mohave. Base fisheries data Boulder Canyon to Davis Dam. Bilological bulletin no. 7. Nevada Department of Wildlife, Reno. 105 pages.
 

 Armantrout, N.B. 1978. Endangered fish of the Colorado. Our Public Lands 28(2):8-10.
 

 California Department of Fish and Game. 1978. At the crossroads 1978: a report on California's endangered and rare fish and wildlife. California Department of Fish and Game, Sacramento. 114 pages.
 

 Courtois, L.A., T.J. Mills and V.M. Boccone. 1978. Humpback sucker. Pages 42-43 in Endangered, Threatened, and Rare Fish: Fishes. California Department Fish and Game, Sacramento.
 

 Finnley, D., ed.  1978. Rulemaking actions, April 1978. Protection sought for bonytail chub, razorback sucker. Endangered Species Technical Bulletin 3(5):6.
 

 Holden, P.B. 1978. Study of the habitat use and movement of the rare fishes in the Green River, Utah. BIO/WEST, Inc., Logan, Utah.
 

 Holden, P.B. and L.W. Crist. 1978. Documentation of modification of endemic fish species and macroinvertebrates in the Green River below Flaming Gorge Dam. BIO/WEST, Inc., Logan, Utah. 11 pages.
 

 Torres, J. and D. Langlois. 1978. Razorback (humpback) sucker, Xyrauchen texanus (Abbott). Pages 24-25 in Essential Habitat for Threatened or Endangered Wildlife in Colorado: Part I. Colorado Division of Wildlife, Fort Collins.
 

 Torres, J., S. Bissell, G. Craig, W. Graul and D. Langlois. 1978. Wildlife in danger: the status of Colorado's threatened or endangered birds, fish and mammals. Colorado Division of Wildlife, Denver.
 

 U.S. Fish and Wildlife Service. 1978. Proposed endangered status for the bonytail chub and threatened status for the razorback sucker. Federal Register 43:17375-17377.
 

 Wiltzius, W.J. 1978. Some factors historically affecting the distribution and abundance of fishes in the Gunnison River. Final report for fishery investigations of the lower Gunnison River drainage. Colorado Division of Wildlife, Fort Collins. 215 pages.
 

 Abbey, D. and C. Olinger. 1979. Survey of energy projects and resources in the upper Colorado and upper Missouri River basins. Informal report LA-8126-MS. Los Alamos Scientific Laboratory, Los Alamos, New Mexico. 23 pages.
 

 Carlson, C.A., C.G. Prewitt, D.E. Snyder, E.J. Wick, E.L. Ames and W.D. Fronk. 1979. Fishes and macroinvertebrates of the White and Yampa Rivers, Colorado. Final report, February 1979. Colorado State University Department of Fisheries and Wildlife Biology, Department of Zoology and Entomology, Fort Collins and U.S. Bureau of Land Management Project 31-1474-1744. 276 pages.
 

 Day, D. 1979. Endangered animals in Utah and adjacent areas. Great Basin Naturalist Memoirs 3:35-40.
 

 Desert Fishes Council. 1979. Proceedings of the Desert Fishes Council Volume XI Annual Symposium. Desert Fishes Council, Bishop, California. 152 pages.
 

 Holden, P.B. 1979. Ecology of riverine fishes in regulated stream systems with emphasis on the Colorado River. Pages 57-74 in The Ecology of Regulated Streams. W.A. Stanford, Plenum Publishing Company.
 

 Holden, P.B. and D.A. Selby. 1979. Aquatic biology survey of the Green River (Utah) to assess potential impacts of a proposed water withdrawal structure. BIO/WEST, Inc., Logan, Utah. 40 pages.
 

 Kennedy, D.M. 1979. Ecological investigations of backwaters along the lower Colorado River. Doctoral dissertation, University of Arizona, Tucson. 219 pages.
 

 Lanigan, S.H. and C.R. Berry, Jr. 1979. Distribution and abundance of endemic fishes in the White River in Utah. Utah Cooperative Fish and Wildlife Research Unit, Logan. 93 pages.
 

 Lanigan, S.H. and C.R. Berry, Jr. 1979. Abundance and distribution of endemic fish in the White River, Utah.  American Fisheries Society Bonneville Chapter 1979 Annual Meeting.
 

 Minckley, C.O. and S.W. Carothers. 1979. Recent collections of the Colorado River squawfish and razorback sucker from the San Juan and Colorado Rivers in New Mexico and Arizona. Southwestern Naturalist 24(4):686-687.
 

 Minckley, W.L. 1979. Aquatic habitats and fishes of the lower Colorado River, Southwestern United States. Final report. U.S. Bureau of Reclamation, Boulder City, Nevada and Arizona State University, Tempe.
 

 Nicola, S.J. 1979. Endangered, threatened, and rare fish: fisheries problems associated with the development of the lower Colorado River. Project Number Cal E-F-001-R. California Department of Fish and Game.
 

 Nicola, S.J. 1979. Fisheries problems associated with the development of the lower Colorado River. Inland Fisheries Endangered Species Program Special Publication 74(4):1-18.
 

 U.S. Fish and Wildlife Service. 1979. Aquatic study--Colorado River from Lee's Ferry to the southern International Boundary, and selected tributaries, Arizona, California, Nevada. Special report on distribution and abundance of fishes of the lower Colorado River. Final report, U.S. Water and  U.S. Fish and Wildlife Service, Phoenix. 157 pages.
 

 Wilke, P.J. 1979. Prehistoric weir fishing of recessional shorelines of Lake Cahuilla, Salton Basin, southeastern California. Proceedings of the Desert Fishes Council 11:101-103.
 

 Behnke, R.J. 1980. Impacts of habitat alterations on the endangered and threatened fishes of the upper Colorado River basin. Pages 204-216 in W.O.J. Spofford, A.L. Parker and A.V. Kneese, eds. Energy Development and the Water, Fish, and Wildlife in the Southwest: Problems of the Upper Colorado River Basin. Resources for the Future, Washington, D.C.
 

 Behnke, R.J. and D.E. Benson. 1980. Endangered and threatened fishes of the upper Colorado River basin. Colorado State University Cooperative Extension Service Bulletin 503A, Fort Collins. 34 pages.
 

 Eastman, J.T.  1980. Caudal skeletons of catostomid fishes. American Midland Naturalist 103(1):133-148.
 

 Gear, R.D. 1980. Memorandum: Request for participation and partial funding of a razorback sucker and endangered bonytail chub study in Lake Mohave. U.S. Bureau of Reclamation, Water and Power Resources Service, Boulder City, Nevada. 15 pages.
 

 Heggen, A.W. 1980. Colorado squawfish and humpback chub, bonytail chub and razorback sucker population and habitat monitoring Performance report - SE-2(CO-OP), October 1, 1979 - June 30, 1980. Utah Division of Wildlife Resources, Salt Lake City. 1 page.
 

 Holden, P.B. 1980. Relationship between flows in the Yampa River and success of rare fish populations in the Green River system. BIO/WEST, Inc., Logan, Utah. 39 pages.
 

 Jensen, B.L. 1980. Memorandum: Status report on wild Colorado squawfish, bonytail chub, and razorback suckers. U.S. Fish and Wildlife Service, Dexter, New Mexico. 1 page.
 

 Keenan, C.L. and T. Miller. 1980. Population responses of Hyallella azteca in the Colorado River to periphyton standing crop and predation by the razorback sucker (Xyrauchen texanus). Bulletin of the Ecological Society of America 61(2):152.
 

 Loudermilk, W.E. 1980. Relocation of the 1974 cohort HBS received from Willow Beach National Fish Hatchery to West Pond. L.B. Associate Fishery Biologist. July 30, 1980. California Department of Fish and Game.
 

 McAda, C.W. and R.S. Wydoski. 1980. Razorback sucker, Xyrauchen texanus, in the upper Colorado River basin, 1974-1976. U.S. Fish and Wildlife Service, Technical Paper 99:1-15.
 

 McCall, T. 1980. Fishery investigation of Lake Mead, Arizona-Nevada, from Separation Rapids to Boulder Canyon, 1978-79. Final report, contract number 8-07-30-X0025. U.S. Department of Interior, Water and Power Resources Services, Lower Colorado River Region, Boulder City, Nevada. 197 pages.
 

 Molles, M. 1980. Impacts of habitat alterations and introduced species on the native fishes of the upper Colorado River basin. Pages 163-181 in W.O.J. Spofford, A.L. Parker and A.V. Kneese, eds. Energy Development and the Water, Fish, and Wildlife in the Southwest: Problems of the Upper Colorado River Basin. Resources for the Future, Washington, D.C.
 

 Rinne, W.E. 1980. Lower Colorado River area coordinator report. Proceedings of the Desert Fishes Council 12:19-20.
 

 Saiki, M.K., D.M. Kennedy and J.C. Tash. 1980. Effects of water development on the lower Colorado River. California-Nevada Wildlife Transactions 1980:100-111.
 

 Stephens, R.F. 1980. Memorandum: Regarding the biological assessment of the impacts of the proposed Hoover powerplant modification to the bonytail chub and razorback sucker. U.S. Fish and Wildlife Service, Phoenix, Arizona. 14 pages.
 

 U.S. Fish and Wildlife Service. 1980. Aquatic study special report on distribution and abundance of fishes of the lower Colorado River. U.S. Bureau of Reclamation, Boulder City, Nevada.
 

 U.S. Fish and Wildlife Service. 1980. Notice of withdrawl of an expired proposal for listing the razorback sucker. Federal Register 45:35410.
 

 Wydoski, R.S. 1980. Potential impacts of alterations in streamflow and water quality on fish and macroinvertebrates in the upper Colorado River basin. Chapter 8 in W.O.J. Spofford, A.L. Parker and A.V. Kneese, eds. Energy Development and the Water, Fish, and Wildlife in the Southwest: Problems of the Upper Colorado River Basin. Resources for the Future, Washington, D.C.
 

 Wydoski, R.S. and W.T. Helm. 1980. Effects of alterations to low gradient reaches of Utah streams. FWS/OBS-80/14. -------------------------------------------------------------------------------- Page 7 --------------------------------------------------------------------------------  U.S. Fish and Wildlife Service. 160 pages.
 

 Wydoski, R.S., K. Gilbert, K. Seethaler, C.W. McAda and J.A. Wydoski. 1980. Annotated bibliography for aquatic resource management of the upper Colorado River ecosystem. U.S. Fish and Wildlife Service, Research Publication 135:1-186.
 

 Baker, J.A. and S.T. Ross. 1981. Spatial and temporal resource utilization by southeastern cyprinids. Copeia 1981(1):178-189.
 

 Barta, G. 1981. Colorado squawfish propagation study. Colorado Division of Wildlife. 11 pages.
 

 Carothers, S.W. and C.O. Minckley. 1981. Survey of the fishes, aquatic invertebrates, and aquatic plants of the Colorado River and selected tributaries from Lee's Ferry to Separation Rapid. Final report. U.S. Bureau of Reclamation, Lower Colorado River Region, Boulder City, Nevada and Museum of Northern Arizona, Flagstaff. 401 pages.
 

 Constanz, G.D. 1981. Life history patterns of desert fishes. Pages 237-290 in R.J. Naiman and D.L. Soltz, eds. Fishes in North American Deserts, Wiley-Interscience, John Wiley and Sons, New York, New York.
 

 Courtois, L.A. 1981. Lightweight, adjustable, and portable surgical table for fisheries work in the field. Progressive Fish Culturist 43(1):55-56.
 

 Inslee, T.D. 1981. Spawning of razorback suckers, Xyrauchen texanus.  Dexter National Fish Hatchery, Dexter, New Mexico. 20 pages.
 

 Loudermilk, W.E. 1981. Aspects of razorback sucker (Xyrauchen texanus, Abbott) life history which help explain their decline. Proceedings of the Desert Fishes Council 133:67-72.
 

 Miller, F.H. 1981. Scientific publications of Carl Leavitt Hubbs: bibliography and index, 1915-1981 Hubbs-Sea World Research Institute, San Diego, California. 258 pages.
 

 Naiman, R.J. 1981. An ecosystem overview: desert fishes and their habitats. Pages 493-531 in R.J. Naiman and D.L. Stoltz, eds. Fishes in North American Deserts. John Wiley and Sons, New York, New York.
 

 Naiman, R.J. and D.L. Soltz. 1981. Fishes in North American Deserts. John Wiley and Sons, New York, New York. 552 pages.
 

 Paulson, L.J., J.E. Deacon and J.R. Baker. 1981. Biology of bonytail chubs and razorback suckers in Lake Mohave. University of Nevada ,Lake Mead Limnological Research Center and Department of Biological Sciences, Las Vegas. 16 pages.
 

 Schoenherr, A.A. 1981. Role of competition and the replacement of native fishes by introduced species. Pages 173-203 in R.J. Naiman and D.L. Soltz, eds. Fishes in North American Deserts, Wiley-Interscience, John Wiley and Sons, New York, New York.
 

 Snyder, D.E. 1981. Contributions to a guide to the cypriniform fish larvae of the upper Colorado River system. U.S. Bureau of Land Management, Biological Sciences Service. No. 3. 81 pages.
 

 Tyus, H.M. 1981. Radiotracking rare fishes, Green River, Utah. Underwater Telemetry Newsletter 11(1):11.
 

 Tyus, H.M., C.W. McAda and B.D. Burdick. 1981. Radiotelemetry of Colorado squawfish and razorback sucker, Green River system of Utah, 1980. Transactions of the American Fisheries Society of the Bonneville Chapter 1981:19-24.
 

 U.S. Fish and Wildlife Service. 1981. Aquatic study--Colorado River from Lee's Ferry to the southern International Boundary, and selected tributaries, Arizona, California, Nevada. Special report on distribution and abundance of fishes of the lower Colorado River. Final report. Water and Power U.S. Bureau of Reclamation, Lower Colorado River Region, Boulder City, Nevada. U.S. Fish and Wildlife Service. 278 pages.
 

 Valdez, R.A., P.G. Mangan, R.P. Smith and B.C. Nilson. 1981. Upper Colorado River fisheries investigations. Draft final report. U.S. Bureau of Reclamation, Salt Lake City, Utah.
 

 Valentine, J.J. 1981. Hatchery and laboratory phase of the Colorado River endangered fishes study. 7 pages.
 

 Behnke, R.J. 1982. Realities and illusions of endangered species preservation. Pages 93-94 in W.H. Miller, H.M. Tyus and C.A. Carlson, eds. Fishes of the Upper Colorado River System: Present and Future. American Fisheries Society, Bethesda, Maryland.
 

 Behnke, R.J., C.A. Carlson, D.L. Miller, D.E. Snyder, E.J. Wick and L.D. Zuckerman. 1982. Survey and analysis of existing information on fishes in northwest Colorado. Volume 6 in D.W. Crumpacker, ed. Wildlife conservation and energy development in northwest Colorado. Ecological Services Section, Colorado Division of Wildlife, Denver. (14 volume series prepared by Northwest Colorado Wildlife Consortium).
 

 Bulkley, R.V., C.R. Berry, Jr., R. Pimentel and T. Black. 1982. Tolerance and preferences of Colorado River endangered fishes to selected habitat parameters. Pages 185-241 in Colorado River Fishery Project, Part 3 Contracted Studies. Final report. U.S. Fish and Wildlife Service, U.S. Bureau of Reclamation, Salt Lake City, Utah.
 

 Harris, R.E., H.N. Sersland and F.P. Sharpe. 1982. Providing water for endangered fishes in the upper Colorado River system. Pages 90-92 in W.H. Miller, H.M. Tyus and C.A. Carlson, editors. Fishes of the Upper Colorado River System: Present and future. American Fisheries Society, Western Division, Bethesda, Maryland.
 

 Inslee, T.D. 1982. Spawning and hatching of the razorback sucker (Xyrauchen texanus). Proceedings of the Annual Conference of the Western Association of Fish and Wildlife Agencies 62:431-432.
 

 Inslee, T.D. 1982. Culture of endangered Colorado River fishes, Section III: spawning of razorback suckers. Pages 145–157 in Colorado River Fishery Project, Part 3 Contracted Studies. Final report. U.S. Fish and Wildlife Service, Salt Lake City, Utah.
 

 Jensen, B.L. 1982. Annual report, fiscal year 1982. U.S. Fish and Wildlife Service, Dexter, New Mexico. 4 pages.
 

 Johnson, J.E. and J.N. Rinne. 1982. Endangered Species Act and southwest fishes.  Fisheries 7(3):2-7.
 

 Marsh, P.C. and M.S. Pisano. 1982. Influence of temperature on development and hatching success of native Colorado River fishes. Proceedings of the Annual Conference of the Western Association of Fish and Wildlife Agencies 62:434.
 

 Marsh, P.C. and W.L. Minckley. 1982. Fishes of the Phoenix metropolitan area in central Arizona. North American Journal of Fisheries Management 4:395-402.
 

 Miller, K.D. 1982. Colorado River Fishes Recovery Team. Pages 95-97 in W.H. Miller, H.M. Tyus and C.A. Carlson, eds. Fishes of the Upper Colorado River System: Present and Future. American Fisheries Society, Bethesda, Maryland.
 

 Miller, W.H. 1982. Closing remarks. Pages 130-131 in W.H. Miller, H.M. Tyus and C.A. Carlson, eds. Fishes of the Upper Colorado River System: Present and Future. American Fisheries Society, Bethesda, Maryland.
 

 Miller, W.H., H.M. Tyus and C.A. Carlson, eds. 1982. Fishes of the Upper Colorado River System: Present and Future. Proceedings of a Symposium Presented at the Annual Meeting of the American Fisheries Society in Albuquerque, New Mexico, September 18, 1981. American Fisheries Society, Western Division, Bethesda, Maryland. 131 pages.
 

 Miller, W.H., J.J. Valentine, D.C. Archer, H.M. Tyus, R.A. Valdez and L.R. Kaeding. 1982. Colorado River Fishery Project, Part 2 Field Investigations. Final report, U.S. Bureau of Reclamation Contract 9-07-40-L-10 16, and U.S. Bureau of Land Management Memorandum of Understanding CO-910-MU9-933. U.S. Fish and Wildlife Service, U.S. Bureau of Reclamation, Salt Lake City, Utah. 36 pages.
 

 Miller, W.H., J.J. Valentine, D.C. Archer, H.M. Tyus, R.A. Valdez and L.R. Kaeding. 1982. Colorado River Fishery Project, Part 3 Contracted Studies. Final report, U.S. Bureau of Reclamation Contract 9-07-40-L- 1016, and U.S. Bureau of Land Management Memorandum of Understanding CO-9l0-MU9-933. U.S. Fish and Wildlife Service, U.S. Bureau of Reclamation, Salt Lake City, Utah. 324 pages.
 

 Miller, W.H., J.J. Valentine, D.C. Archer, H.M. Tyus, R.A. Valdez and L.R. Kaeding.  1982. Colorado River Fishery Project, Part 1 Summary report. Final report, U.S. Bureau of Reclamation Contract 9-07-40-L-10 16, and U.S. Bureau of Land Management Memorandum of Understanding CO-910-MU-933. U.S. Fish and Wildlife Service, U.S. Bureau of Reclamation, Salt Lake City, Utah. 42 pages.
 

 Minckley, W.L. and E.S. Gustafson. 1982. Early development of the razorback sucker, Xyrauchen texanus (Abbott). Great Basin Naturalist 42(4):553-561.
 

 Mueller, G., W. Rinne, T. Burke and M. Delamore. 1982. Habitat selection of spawning razorback suckers observed in Arizona Bay, Lake Mohave, Arizona-Nevada. U.S. Bureau of Reclamation, Lower Colorado River Region, Boulder City, Nevada.
 

 Persons, W.R., R.V. Bulkley and W.R. Noonan. 1982. Movements of Colorado squawfish in the Colorado River inlet of Lake Powell. Pages 275-283 in Colorado River Fishery Project, Part 3 Contracted Studies. Final report. U.S. Fish and Wildlife Service, U.S. Bureau of Reclamation, Salt Lake City, Utah.
 

 Persons, W.R., R.V. Bulkley and W.R. Noonan. 1982. Movements and feeding of adult striped bass, Colorado River Inlet, Lake Powell, 1980-1981. Pages 255-274 in Colorado River Fishery Project, Part 3 Contracted Studies. Final report. U.S. Fish and Wildlife Service, U.S. Bureau of Reclamation, Salt Lake City, Utah.
 

 Radant, R.D. 1982. Colorado squawfish and humpback chub, bonytail chub and razorback sucker population and habitat monitoring Performance report SE-2(CO-OP), July 1, 1981 - July 1, 1982. Utah Division of Wildlife Resources, Salt Lake City. 3 pages.
 

 Radant, R.D. 1982. Colorado squawfish and humpback chub, bonytail chub and razorback sucker population and habitat monitoring Performance report SE-2(CO-OP), July 1, 1981 - September 30, 1982. Utah Division of Wildlife Resources, Salt Lake City.
 

 Shields, R.H. 1982. Fishes of the upper Colorado River basin: political and resource consideration. Pages 9-11 in W.H. Miller, H.M. Tyus and C.A. Carlson, eds. Fishes of the Upper Colorado River System: Present and Future. American Fisheries Society, Bethesda, Maryland.
 

 Tyus, H.M., B.D. Burdick, R.A. Valdez, C.M. Haynes, T.A. Lytle and C.R. Berry. 1982. Fishes of the upper Colorado River basin: distribution, abundance, and status. Pages 12-70 in W.H. Miller, H.M. Tyus, and C.A. Carlson, eds. Fishes of the upper Colorado River system: present and future. Western Division, American Fisheries Society, Bethesda, Maryland. 131 pages.
 

 Tyus, H.M., C.W. McAda and B.D. Burdick. 1982. Green River field investigations: 1979-1981. Pages 1-99 in Colorado River Fishery Project, Part 2 Field Investigations. U.S. Fish and Wildlife Service, U.S. Bureau of Reclamation, Salt Lake City, Utah.
 

 U.S. Fish and Wildlife Service. 1982. Colorado River Fishery Project report, contract no. 9-07-40-L-1016. U.S. Fish and Wildlife Service, Colorado River Fishery Project, Salt Lake City.
 

 Ulmer, L. 1982. Results of trammel netting at Senator Wash Reservoir. State of California, Department of Fish and Game, Blythe, California.
 

 Valdez, R.A., P. Mangan, M. McInery and R.P. Smith. 1982. Tributary report: fishery investigations of the Gunnison and Dolores Rivers. Pages 321-362 in Colorado River Fishery Project, Part 2 Field Investigations. U.S. Fish and Wildlife Service, U.S. Bureau of Reclamation, Salt Lake City, Utah.
 

 Valdez, R.A., P. Mangan, R. Smith and B. Nilson. 1982. Upper Colorado River Investigation (Rifle, Colorardo to Lake Powell, Utah). Pages 101-279 in Colorado River Fishery Project, Part 2 Field Investigations. U.S. Fish and Wildlife Service, U.S. Bureau of Reclamation, Salt Lake City, Utah.
 

 Wick, E.J., C.W. McAda and R.V. Bulkley. 1982. Life history and prospects for recovery of the razorback sucker. Pages 120-126 in W.H. Miller, H.M. Tyus and C.A. Carlson, eds. Fishes of the Upper Colorado River System: Present and Future. American Fisheries Society, Bethesda, Maryland.
 

 Bulkley, R.V. and R. Pimental. 1983. Temperature preference and avoidance by adult razorback suckers. Transactions of the American Fisheries Society 112(5):601-607.
 

 Bulkley, R.V. and R. Pimental. 1983. Temperature preference and avoidance of razorback suckers and management implications. Encyclia 60:150.
 

 Hickman, T.J. 1983. Effects of habitat alteration by energy resource developments in the upper Colorado River basin on endangered fishes. Aquatic resources management of the Colorado River ecosystem. Pages 537-550 in V.D. Adams and V.A. Lamarra, eds. Aquatic Resources Management of the Colorado River Ecosystem. Ann Arbor Science Publishing, Ann Arbor, Michigan.
 

 Medel-Ulmer, L. 1983. Movement and reproduction of the razorback sucker (Xyrauchen texanus) inhabiting Senator Wash Reservoir, Imperial County, California. Proceedings of the Desert Fishes Council 12:106.
 

 Minckley, W.L. 1983. Status of the razorback sucker, Xyrauchen texanus (Abbott), in the Lower Colorado River basin. Southwestern Naturalist 28(2):165-187.
 

 Mpoame, M. and J.N. Rinne. 1983. Parasites of some fishes native to Arizona and New Mexico. Southwestern Naturalist 28:399-405.
 

 Radant, R.D. 1983. Colorado squawfish and humpback chub, bonytail chub and razorback sucker population and habitat monitoring Progress report SE-2(CO-OP), October 1, 1981 - December 31, 1983. Utah Division of Wildlife Resources, Salt Lake City. 4 pages.
 

 U.S. Fish and Wildlife Service. 1983. Brief on Colorado River endangered fishes, water development. U.S. Fish and Wildlife Service, Section 7 Consultation. 7+ pages.
 

 Valdez, R.A. and E.J. Wick. 1983. Natural versus manmade backwaters as native fish habitat. Pages 519-536 in V.D. Adams and V.A. Lamarra, eds. Aquatic Resources Management of the Colorado River Ecosystem. Ann Arbor Science Publishing, Ann Arbor, Michigan.
 

 Valentine, J.J. 1983. Colorado River endangered fish hatchery feasibility study. U.S. Fish and Wildlife Service, Salt Lake City, Utah. 47 pages.
 

 Archer, D.L., H.M. Tyus, L.R. Kaeding, C.W. McAda and B.D. Burdick. 1984. Colorado River Fishes Monitoring Project, second annual project.  U.S. Fish and Wildlife Service, Salt Lake City, Utah. 31 pages.
 

 Berry, C.R., Jr. 1984. Hematology of four rare Colorado River fishes. Copeia 3:790-793.
 

 Bozek, M.A. 1984. Factors affecting the reproductive success of razorback suckers and bonytail chubs in Lake Mohave, Arizona-Nevada during 1982-1983. Master's thesis, University of Nevada, Las Vegas. 147 pages.
 

 Bozek, M.A., L.J. Paulson and J.E. Deacon. 1984. Factors affecting reproductive success of bonytail chubs and razorback suckers in Lake Mohave. Final report. Contract 14-16-0002-81-251. U.S. Fish and Wildlife Service, Albuquerque, New Mexico, and University of Nevada, Las Vegas. 136 pages.
 

 Brooks, J. 1984. Memorandum: Razorback sucker stocking. Arizona Game and Fish Department, Phoenix.
 

 Colorado River Wildlife Council. 1984. Minutes Colorado River Fish & Wildlife Council, Imperial Palace Hotel, Las Vegas, Nevada. Colorado River Wildlife Council.
 

 Deacon, J.E. and J.E. Williams. 1984. Annotated list of the fishes of Nevada. Proceedings of the Biological Society of Washington 97(1):103-118.
 

 Radant, R.D. 1984. Colorado squawfish and humpback chub, bonytail chub and razorback sucker population and habitat monitoring Progress report SE-2(CO-OP), October 1, 1982 - September 30, 1984. Utah Division of Wildlife Resource, Salt Lake City. 4 pages.
 

 Snyder, D.E. 1984. Provisional key to the protolarvae and mesolarvae of Catostomus catostomus, C. commersoni, C. discobolus, C. latipinnis, C. platyrhynchus and Xyrauchen texanus. Research report. Colorado State University Larval Fish Laboratory, Fort Collins.
 

 U.S. Fish and Wildlife Service. 1984. Upper Colorado River basin catalog of fish studies. U.S. Fish and Wildlife Service, Denver, Colorado. 70 pages.
 

 Ulmer, L. 1984. Memorandum: Razorback sucker rearing enclosure constructed in West Pond; Imperial County, CA. State of California, Department of Fish and Game, Blythe, California.
 

 Anonymous. 1985. Comments on Colorado River flows for endangered fishes under the Colorado River Compact. Upper Colorado River Basin Compact and the Treaty with Mexico. 9 pages.
 

 Brooks, J. 1985. Memorandum: Razorback sucker Xyrauchen texanus culture at Bubbling Ponds. Arizona Game and Fish Department, Phoenix.
 

 Brooks, J. 1985. Memorandum: Holding of endangered species at Page Springs State Fish Hatchery. Arizona Game and Fish Department, Phoenix.
 

 Brooks, J.E., P.C. Marsh and W.L. Minckley. 1985. Re-introduction and monitoring of razorback sucker in the Lower Colorado River basin. Proceedings of the Annual Conference of the Western Association of Fish and Wildlife Agencies 65:203.
 

 Carter, J.C., R.A. Valdez, R.J. Ryel and V.A. Lamarra. 1985. Fisheries habitat dynamics in the upper Colorado River. Journal of Freshwater Ecology 3(2):249-264.
 

 Desert Fishes Council. 1985. Proceedings of the Desert Fishes Council Volumes XIII-XV (A) Annual Symposia. Desert Fishes Council, Bishop, California. 163 pages
 

 Hamman, R.L. 1985. Induced spawning of hatchery-reared bonytail. Progressive Fish Culturist 47:239-241.
 

 Hamman, R.L. 1985. Induced spawning of hatchery-reared razorback sucker. Progressive Fish Culturist 47(3):187-189.
 

 Johnson, J.E. 1985. Reintroducing the natives: razorback sucker. Proceedings of the Desert Fishes Council 13-15:73-79.
 

 Loudermilk, W.E. and L.C. Ulmer. 1985. Fishery inventory with emphasis on razorback sucker (Xyrauchen texanus) status in the lower Colorado River, state of California. The Resources Agency, Department of Fish and Game. 27 pages.
 

 Marsh, P.C. 1985. Effect of incubation temperature on survival of embryos of native Colorado River fishes. Southwestern Naturalist 30(1):129-140.
 

 Marsh, P.C. and W.L. Minckley. 1985. Aquatic resources of the Yuma Division, lower Colorado River. Final report. U.S. Bureau of Reclamation, Lower Colorado Region, Boulder City, Nevada. 222 pages.
 

 Minckley, W.L. 1985. Native fishes and natural aquatic habitats in U.S. Fish and Wildlife Service Region II west of the continental divide. Executive summary. Arizona State University, Deparment of Zoology, Tempe. 132 + pages.
 

 Minckley, W.L. 1985. Memorandum: Razorback sucker monitoring effort Arizona reservoirs, March 1985. U.S. Fish and Wildlife Service, Dexter National Fish Hatchery and Technology Center, Dexter, New Mexico.
 

 Mueller, G., W. Rinne, T. Burke and M. Delamore. 1985. Habitat selection of spawning razorback suckers observed in Arizona Bay, Lake Mohave, Arizona-Nevada. Proceedings of the Desert Fishes Council 13-15:157.
 

 Muth, R.T. and S.P. Platania. 1985. Comparative morphology of the interneural bones of metalarval and early-juvenile razorback sucker (Xyrauchen texanus), bluehead sucker (Catostomus discobolus), and flannelmouth sucker (Catostomus latipinnis), from the upper Colorado River basin. Proceedings of the Annual Conference of the Western Association of Fish and Wildlife Agencies 65:170.
 

 Radant, R.D. 1985. Colorado squawfish and humpback chub, bonytail chub and razorback sucker population and habitat monitoring Progress report SE-2(CO-OP), October 1, 1984 - December 31, 1985. Utah Division of Wildlife Resources, Salt Lake City. 8 pages.
 

 Tyus, H.M. and W.B. Harned. 1985. Spawning and habitat use of the razorback sucker in the Green River basin, Colorado and Utah, 1979-1984. Proceedings of the Annual Conference of the Western Association of Fish and Wildlife Agencies 65:193-202.
 

 U.S. Bureau of Reclamation. 1985. Collection of fish from the Dirty Devil Arm of Lake Powell 1984. U.S. Bureau of Reclamation. 15 pages.
 

 U.S. Fish and Wildlife Service. 1985. Comparison of captures of Colorado squawfish and razorback suckers from adjacent Colorado River reaches upstream and downstream from the confluence with the Gunnison River. Draft. U.S. Fish and Wildlife Service, Grand Junction, Colorado. 9 pages.
 

 U.S. Fish and Wildlife Service. 1985. Preliminary conceptual approach to recovery of endangered fish species in the upper Colorado River basin. Draft. U.S. Fish and Wildlife Service. 26 pages.
 

 U.S. Fish and Wildlife Service. 1985. Endangered and threatened wildlife and plants: review of vertebrate wildlife; notice of review. Federal Register 50(181):37961.
 

 Ulmer, L. and K.R. Anderson. 1985. Management plan for the razorback sucker (Xyrauchen texanus) in California. California Department of Fish and Game, Region 5 Information Bulletin 0013-10-1985. 26 pages.
 

 Wilde, G.R., M.A. Bozek and L.J. Paulson. 1985. Factors contributing to the success of the razorback sucker in Lake Mohave, Arizona-Nevada. Proceedings of the Annual Conference of the Western Association of Fish and Wildlife Agencies 65:186-192.
 

 Williams, J.E., et al. 1985. Endangered aquatic ecosystems on North American deserts with a list of vanishing fishes of the region. Journal of the Arizona-Nevada Academy of Science 20(1):1-62.
 

 Wydoski, R.S. 1985. Biological review of endangered or imperiled fish in the upper Colorado River basin. Fishery Resources Program, Washington, D.C. 26 pages.
 

 Archer, D.L., L.R. Kaeding and H.M. Tyus. 1986. Colorado River Fishes Monitoring Project. Final report to the Bureau of Reclamation (Contract No. 2-07-40-L3083). U.S. Fish and Wildlife Service, Lakewood, Colorado. 64 pages.
 

 Brooks, J.E. 1986. Annual reintroduction and monitoring report for razorback sucker (Xyrauchen texanus), into the Gila River basin, Arizona, 1985. U.S. Fish and Wildlife Service, Office of Endangered Species, Albuquerque, New Mexico. 23 pages.
 

 California Department of Fish and Game. 1986. Fish planting receipt 10/24/1986. California Department of Fish and Game.
 

 California Department of Fish and Game. 1986. Fish planting receipt 11/25/1986. California Department of Fish and Game.
 

 Coppes, Z. 1986. Isozymes of glucosephosphate isomerase (PGI) in fishes of the subclass actinopterygii. Comparative Biochemistry and Physiology Part B: Biochemistry and Molecular Biology 84(4):575-588.
 

 Jensen, B.L. 1986. Role of fish culture in endangered fishes recovery. Transactions of the American Fisheries Society of the Bonneville Chapter 1986:31-41.
 

 Jensen, B.L. 1986. Memorandum: Razorback sucker stocking summary, 1986. U.S. Fish and Wildlife Service, Albuquerque, New Mexico.
 

 Jensen, B.L. 1986. Memorandum: Razorback sucker fry stocking - 3/31/1987. U.S. Fish and Wildlife Service, Albuquerque, New Mexico.
 

 Langhorst, D.R. and P.C. Marsh. 1986. Early life history of razorback sucker in Lake Mohave. Final report. U.S. Bureau of Reclamation, Lower Colorado Region, Boulder City, Nevada. 36 pages.
 

 McCarthy, M.S. 1986. Age of imperiled razorback sucker (Pisces, Catostomidae) from Lake Mohave, Arizona-Nevada. Master’s thesis, Arizona State University, Tempe.
 

 Ohmart, R.D., B.W. Anderson and W.C. Hunter. 1986. Ecology of the lower Colorado River from Davis Dam to the Mexico-United States international boundary: a community profile. Report 85(7.19). U.S. Fish and Wildlife Service, Washington, D.C. 296 pages.
 

 Radant, R.D. 1986. Colorado squawfish and humpback chub, bonytail chub and razorback sucker population and habitat monitoring Progress report SE-2(CO-OP), January 1 - June 31, 1986. Utah Division of Wildlife Resources, Salt Lake City. 3 pages.
 

 Rinne, J.N., J.E. Johnson, B.L. Jensen, A.W. Ruger and R. Sorensen. 1986. Role of hatcheries in the management and recovery of threatened and endangered fishes: fish culture in fisheries management. Pages 271-285 in R.H. Stroud, ed. Fish Culture In Fisheries Management, Proceedings of a Symposium on the Role of Fish Culture in Fisheries Management. American Fisheries Society, Fish Culture Section and Fisheries Management Section, Bethesda, Maryland.
 

 Stanford, J.A. and J.V. Ward. 1986. Fish of the Colorado system. Pages 385-403 in B.R. Davies and K.F. Walker, eds. The Ecology of River Systems. Dr. W. Junk, Publishers, Dordrecht, The Netherlands.
 

 Bestgen, K.R., D.A. Hendrickson, D.M. Kubly and D.L. Propst. 1987. Movements and growth of fishes in the Gila River Drainage, Arizona and New Mexico. Southwestern Naturalist 32:351-356.
 

 Brooks, J.E. 1987. Differing perspectives on razorback sucker management in the upper and Lower Colorado River basins. Proceedings of the Desert Fishes Council 17:179-180.
 

 Buth, D.G., R.W. Murphy and L. Ulmer. 1987. Population differentiation and introgressive hybridization of the flannelmouth sucker and of hatchery and native stocks of the razorback sucker. Transactions of the American Fisheries Society 116(1):103-110.
 

 California Department of Fish and Game. 1987. Fish planting receipt 2/9/1987. California Department of Fish and Game.
 

 California Department of Fish and Game. 1987. Fish planting receipt 3/30/1987. California Department of Fish and Game.
 

 California Department of Fish and Game. 1987. Fish planting receipt 3/31/1987. California Department of Fish and Game. 8 pages.
 

 California Department of Fish and Game. 1987. Fish planting receipt 5/7/1987. California Department of Fish and Game.
 

 California Department of Fish and Game. 1987. Fish planting receipt 6/2/1987. California Department of Fish and Game. 4 pages.
 

 California Department of Fish and Game. 1987. Fish planting receipt 6/12/1987. California Department of Fish and Game.
 

 California Department of Fish and Game. 1987. Fish planting receipt 9/18/1987. California Department of Fish and Game.
 

 California Department of Fish and Game. 1987. Fish planting receipt 6/17/1987. California Department of Fish and Game.
 

 California Department of Fish and Game. 1987. Fish planting receipt 6/23/1987. California Department of Fish and Game.
 

 California Department of Fish and Game. 1987. Fish planting receipt 8/13/1987. California Department of Fish and Game.
 

 California Department of Fish and Game. 1987. Fish planting receipt 8/18/1987. California Department of Fish and Game.
 

 California Department of Fish and Game. 1987. Fish planting receipt 9/4/1987. California Department of Fish and Game.
 

 California Department of Fish and Game. 1987. Fish planting receipt 9/8/1987. California Department of Fish and Game.
 

 California Department of Fish and Game. 1987. Fish planting receipt 9/10/1987. California Department of Fish and Game.
 

 California Department of Fish and Game. 1987. Fish planting receipt 10/1/1987. California Department of Fish and Game.
 

 California Department of Fish and Game. 1987. Fish planting receipt 11/17/1987. California Department of Fish and Game.
 

 Chart, T.E. 1987. Initial effect of impoundment on the fish community of the White River, Colorado. Master's thesis, Colorado State University, Fort Collins. 112 pages.
 

 Colorado River Wildlife Council. 1987. Minutes Colorado River Fish & Wildlife Council, Flamingo Hilton Hotel, Las Vegas, Nevada. Colorado River Wildlife Council.
 

 Desert Fishes Council. 1987. Proceedings of the Desert Fishes Council Volume XIX Annual Symposium. Desert Fishes Council, Bishop, California. 182 pages.
 

 Desert Fishes Council. 1987. Proceedings of the Desert Fishes Council Volumes XVI-XVIII Annual Symposia. Desert Fishes Council, Bishop, California. 254 pages.
 

 Dexter National Fish Hatchery. 1987. Dexter NFH stocking trip record 87-08. Dexter National Fish Hatchery.
 

 Dexter National Fish Hatchery. 1987. Dexter NFH stocking trip record 87-09. Dexter National Fish Hatchery.
 

 Dexter National Fish Hatchery. 1987. Dexter NFH stocking trip record 87. Dexter National Fish Hatchery.
 

 Dexter National Fish Hatchery. 1987. Dexter NFH stocking trip record 87-07. Dexter National Fish Hatchery.
 

 Hamman, R.L. 1987. Survival of razorback suckers cultured in earthen ponds. Progressive Fish Culturist 49(2):138-140.
 

 Jensen, B.L., J.E. Brooks, et al. 1987. Annual report, fiscal year 1987. U.S. Fish and Wildlife Service, Dexter, New Mexico. 30 pages.
 

 Langhorst, D.R. 1987. Larval razorback sucker, Xyrauchen texanus, in Lake Mohave, Arizona-Nevada. Proceedings of the Desert Fishes Council 17:164-165.
 

 Marsh, P.C. 1987. Native fishes at Buenos Aires National Wildlife Refuge and Arizona State University Research Park, Arizona: opportunities for management, research and public education on endangered species. Proceedings of the Desert Fishes Council 19:67-78.
 

 Marsh, P.C. 1987. Digestive tract contents of adult razorback suckers in Lake Mohave, Arizona-Nevada. Transactions of the American Fisheries Society 116(1):117-119.
 

 Marsh, P.C. 1987. Food of adult razorback sucker in Lake Mohave, Arizona-Nevada. Transactions of the American Fisheries Society 116:117-119.
 

 Marsh, P.C. and W.L. Minckley. 1987. Aquatic resources of the Yuma Division, lower Colorado River. Final report, Phase II. U.S. Bureau of Reclamation, Lower Colorado Region, Boulder City, Nevada. 200 pages.
 

 Matthews, W.J. and D.C. Heins. 1987. Community and Evolutionary Ecology of North American Stream Fishes. University of Oklahoma Press, Norman. 310 pages.
 

 McAda, C.W. 1987. Status of the razorback sucker (Xyrauchen texanus) in the Colorado River upstream for Lake Powell. Proceedings of the Desert Fishes Council 17:185.
 

 McCarthy, M.S. and W.L. Minckley. 1987. Age estimation for razorback sucker (Pisces: catostomidae) from Lake Mohave, Arizona and Nevada. Journal of the Arizona-Nevada Academy of Science 21:87-97.
 

 Minckley, W.L. and G.K. Meffe. 1987. Differential selection for native fishes by flooding in streams of the arid American Southwest. Pages 93-104 in W.J. Matthews and D.C. Heins, eds. Ecology and Evolution of North American Stream Fish Communities, University of Oklahoma Press, Norman.
 

 National Research Council. 1987. River and Dam Management: A Review of the U.S. Bureau of Reclamation's Glen Canyon Environmental Studies. National Academy Press, Washington, D.C. 152 pages.
 

 Papoulias, D. 1987. Growth and survival of larval razorback sucker (Xyrauchen texanus) in ponds at three fertilization rates. Proceedings of the Desert Fishes Council 17:176-177.
 

 Papoulias, D. and W.L. Minckley. 1987. Survival and growth of razorback sucker (Xyrauchen texanus) in ponds. Proceedings of the Desert Fishes Council 19:35.
 

 Spear, M. 1987. Letter to Duane L. Shroufe regarding the proposed stocking of National Wildlife Refuge ponds with bonytail chub, razorback sucker, and Colorado squawfish. U.S. Fish and Wildlife Service, Albuquerque, New Mexico. 4 pages.
 

 Tyus, H.M. 1987. Distribution, reproduction, and habitat use of the razorback sucker in the Green River, Utah, 1979-1986. Transactions of the American Fisheries Society 116(1):111-116.
 

 Tyus, H.M. 1987. Status of the razorback sucker in the Green River, Utah. Proceedings of the Desert Fishes Council 18:184.
 

 U.S. Bureau of Reclamation. 1987. Glen Canyon Environmental Studies draft report, September 1987. U.S. Department of the Interior, Washington, D.C.
 

 U.S. Bureau of Reclamation. 1987. San Juan River rare and endangered fish study River Miles 16.2-(-)2.0 1987 field season. Draft report. U.S. Bureau of Reclamation, Durango, Colorado. 24 pages.
 

 U.S. Fish and Wildlife Service. 1987. Recovery implementation program for endangered fish species in the upper Colorado River basin. Final report. U.S. Fish and Wildlife Service, Denver, Colorado.
 

 Ulmer, L.C. 1987. Management plan for the razorback sucker (Xyrauchen texanus) in California. Proceedings of the Desert Fishes Council 17:183.
 

 Valdez, R.A. and R.D. Williams. 1987. Endangered fishes of Cataract Canyon. Proceedings of the Desert Fishes Council 16-18:212-219.
 

 Valdez, R.A. and W.J. Masslich. 1987. Winter habitat study of endangered fish. Green River annual summary report 1986-87. BIO/WEST, Inc., Logan, Utah. 41+ pages.
 

 Valdez, R.A., P.B. Holden and T.B. Hardy. 1987. Assimilation of habitat utilization data for endangered fishes of the upper Colorado River basin (a case history). Proceedings of the Desert Fishes Council 19:95-112.
 

 Valdez, R.A., P.B. Holden, T.B. Hardy and R.J. Ryel. 1987. Summary documentation and preliminary SI curves. BIO/WEST, Inc., Logan, Utah. 56 pages.
 

 Wydoski, R.S. 1987. Assessment of introduced sport fishes as potential competitors with or predators upon the rare Colorado River fishes with reference to fishery management in Kenney Reservoir. U.S. Fish and Wildlife Service, Denver, Colorado. 20 pages.
 

 Arizona Game and Fish Department. 1988. Threatened native wildlife in Arizona. Arizona Game and Fish Department, Phoenix. 32 pages.
 

 Baucom, F.. 1988. Summary of trip to sample bonytail chub and razorback sucker, Lake Mohave, Arizona-Nevada, March 5-13, 1988. U.S. Fish and Wildlife Service.
 

 Beard, J.M. 1988. Pond removal and stocking procedures of razorback suckers, Xyrauchen texanus. U.S. Fish and Wildlife Service, Colorado River Fishery Project, Vernal, Colorado.
 

 Beard, J.M. 1988. Razorback sucker propagation 1988. U.S. Fish and Wildlife Service, Colorado River Fishery Project, Vernal, Colorado.
 

 California Department of Fish and Game. 1988. Fish planting receipt 3/4/1988. California Department of Fish and Game.
 

 Colorado River Wildlife Council. 1988. Minutes Colorado River Fish & Wildlife Council, Holiday Inn Pyramid Albuquerque, New Mexico. Colorado River Wildlife Council.
 

 Dexter National Fish Hatchery. 1988. Dexter NFH stocking trip record 88-10. Dexter National Fish Hatchery.
 

 Dexter National Fish Hatchery. 1988. Dexter NFH stocking trip record 88-11. Dexter National Fish Hatchery.
 

 Ferriole, S. 1988. Wildlife resource information system: razorback sucker mapping criteria for the Colorado, Dolores, Gunnison, Green, White, and Yampa Rivers. Colorado Division of Wildlife, Grand Junction.
 

 Hiebert, S. and S. Grabowski. 1988. Parker I Fishery Study October 1985-October 1986. Division of Research and Laboratory Services, Denver, Colorado. 43 pages.
 

 J.F. Sato and Associates, Inc. 1988. Annual site environmental report for calendar year 1988. J.F. Sato and Associates, Inc., Littleton, Colorado. 43 pages.
 

 Jacobson, W.B. 1988. Lake Havasu fish management report, 1984-1987. Statewide fisheries investigation. Federal Aid Project F-7-R-30. Arizona Game and Fish Department, Phoenix. 18 page.
 

 Lanigan, S.H. and H.M. Tyus. 1988. Abundance, status, and rearing of razorback sucker (Xyrauchen texanus) in the Green River basin of Utah, U.S.A. Proceedings of the Desert Fishes Council 19:136-148.
 

 Marsh, P.C. 1988. Razorback sucker management in Arizona. Proceedings of the Desert Fishes Council 17:181-182.
 

 Marsh, P.C. and D.R. Langhorst. 1988. Feeding and fate of wild larval razorback sucker. Environmental Biology of Fishes 21(1):59-67.
 

 Meyer, C.W. and M. Moretti. 1988. Fisheries survey of the San Juan River, Utah 1987. Contract #7FC4005050. Utah Division of Wildlife Resources, Salt Lake City. 43 pages.
 

 Mueller, G., P.C. Marsh and G.W. Knowles. 1988. Distribution, migratory behavior, and habitat use of razorback sucker (Xyrauchen texanus) in Lake Mohave, Arizona-Nevada. Open-File report 98-252. U.S. Geological Survey, Mid-Continent Ecological Science Center, Fort Collins, Colorado. 88 pages.
 

 Papoulias, D. 1988. Effect of food availability on growth and mortality of larval razorback sucker, Xyrauchen texanus. Arizona State University, Tempe. 32 pages.
 

 Papoulias, D. 1988. Growth and survival of larval razorback sucker. Master's thesis, Arizona State University, Tempe. 83 pages.
 

 Papoulias, D. 1988. Survival and growth of larval razorback sucker, Xyrauchen texanus. Master’s thesis, Arizona State University, Tempe.
 

 Simons, L.H. 1988. Memorandum: Stocking of razorback fry into backwaters near Safford. Arizona Game and Fish Department, Phoenix, Arizona.
 

 Tyus, H.M. 1988. Long-term retention of surgically-implanted transmitters in Colorado squawfish and razorback sucker. North American Journal of Fisheries Management 8:268-271.
 

 Tyus, H.M. and C.A. Karp. 1988. Stream flow needs of rare and endangered fishes, Yampa River, Colorado. U.S. Fish and Wildlife Service, Colorado River Fishes Project, Vernal, Utah. 54 pages.
 

 U.S. Bureau of Reclamation. 1988. Glen Canyon Environmental Studies executive summaries of technical reports. U.S. Department of the Interior, U.S. Department of Energy and Arizona Game and Fish Department. 411 pages.
 

 U.S. Department of Agriculture. 1988. Regional Forester’s Sensitive Species List. U.S. Department of Agriculture Forest Service Region 3.
 

 U.S. Fish and Wildlife Service. 1988. Strategy for determination of habitat requirements for the rare fishes of the upper Colorado River basin. U.S. Fish and Wildlife Service. 11 pages.
 

 Valdez, R.A. and W.J. Masslich. 1988. Winter habitat study of endangered fish, Green River.  BIO/WEST, Inc., Logan, Utah.
 

 Williams, J.E., D.W. Sada, C.D. Williams, P.C. Marsh and other members of the Western Division Endangered Species Committee. 1988. American Fisheries Society guidelines for introductions of threatened and endangered fishes. Fisheries 13(5):5-11.
 

 Arizona Game and Fish Department. 1989. Fish stocking record-Arizona Game and Fish Department No. 2855. Arizona Game and Fish Department, Phoenix.
 

 Beard, J.M. 1989. Razorback sucker propagation 1987. U.S. Fish and Wildlife Service, Colorado River Fishery Project, Vernal, Colorado.
 

 California Department of Fish and Game. 1989. Fish planting receipt 9/12/1989. California Department of Fish and Game.
 

 California Department of Fish and Game. 1989. Fish planting receipt 9/20/1989. California Department of Fish and Game.
 

 California Department of Fish and Game. 1989. Fish planting receipt 9/18/1989. California Department of Fish and Game.
 

 Carlson, C.A. and R.T. Muth. 1989. Colorado River: lifeline of the American Southwest. Canadian Special Publication of Fisheries and Aquatic Sciences 106:220-239.
 

 Langhorst, D.R. 1989. Monitoring study of razorback sucker, Xyrauchen texanus, reintroduced into the lower Colorado River in 1988. Contract # FG-7494. California Department of Fish and Game, Blythe. 31 pages.
 

 Lanigan, S.H. and H.M. Tyus. 1989. Population size and status of the razorback sucker in the Green River basin, Utah and Colorado. North American Journal of Fisheries Management 9(1):68-73.
 

 Marsh, P.C. and D. Papoulias. 1989. Ichthyoplankton of Lake Havasu, a Colorado River impoundment, Arizona-California. California Fish and Game 75(2):68-73.
 

 Marsh, P.C. and J.E. Brooks. 1989. Predation by ictalurid catfishes as a deterrent to re-establishment of hatchery-reared razorback suckers. Southwestern Naturalist 34(2):188-195.
 

 Marsh, P.C. and W.L. Minckley. 1989. Bonytail-razorback sucker effort, Lake Mohave, Arizona-Nevada, 1989 Summary report. Arizona State University Center for Environmental Studies, Tempe. 55 pages.
 

 Marsh, P.C. and W.L. Minckley. 1989. Observations on recruitment and ecology of razorback sucker: lower Colorado River, Arizona-California-Nevada. Great Basin Naturalist 49(1):71-78.
 

 Marsh, P.C. and W.L. Minckley. 1989. Radiotagging razorback suckers: Gila River, Arizona 1988-1989. Arizona State University Center for Environmental Studies and Department of Zoology, Tempe. 11 pages.
 

 McAda, C.W. and L.R. Kaeding. 1989. Relations between the habitat use of age-0 Colorado squawfish and those of sympatric fishes in the upper Colorado River basin. Final report. U.S. Fish and Wildlife Service, Colorado River Fishery Project, Grand Junction. 41 pages.
 

 Mueller, G. 1989. Observations of spawning razorback sucker (Xyrauchen texanus) utilizing riverine habitat in the Lower Colorado River, Arizona-Nevada. Southwestern Naturalist 34(1):147-149.
 

 Nesler, T.P. 1989. Aquatic nongame research endangered fishes investigations. Colorado Division of Wildlife Fish Research Section, Fort Collins. 47 pages.
 

 Osmundson, D.B. and L.R. Kaeding. 1989. Colorado squawfish and razorback sucker grow-out pond studies as part of conservation measures for the Green Mountain and Ruedi Reservoir water sales. Final report. U.S. Fish and Wildlife Service, Colorado River Fishery Project, Grand Junction. 85 pages.
 

 Osmundson, D.B. and L.R. Kaeding. 1989. Studies of Colorado squawfish and razorback sucker use of the "15-Mile Reach" of the upper Colorado River as part of conservation measures for the Green Mountain and Ruedi Reservoir Water Sales. U.S. Fish and Wildlife Service, Grand Junction, Colorado.
 

 Papoulias, D. 1989. Food availability and mortality for larval razorback sucker, Xyrauchen texanus. Proceedings of the Desert Fishes Council 18:210-211.
 

 Paulin, K.M., C.M. Williams and H.M. Tyus. 1989. Response of young razorback sucker and Colorado squawfish to water flow and light intensity. U.S. Fish and Wildlife Service, Vernal, Utah. 12 pages.
 

 Platania, S.P. and D.A. Young. 1989. Survey of the ichthyofauna of the San Juan and Animas Rivers from Archuleta and Cedar Hill (respectively) to their confluence at Farmington, New Mexico. Department of Biology, University of New Mexico, Albuquerque.
 

 Robb, A.J.  1989. Comparison of successive fossil fish faunas in the Black Creek and Peedee formations (Upper Cretaceous) of North Carolina. Geological Society of America Abstracts with Programs 21(2):62.
 

 Tyus, H.M. and C.A. Karp. 1989. Habitat use and stream flow needs of rare and endangered fishes, Yampa River, Colorado. U.S. Fish and Wildlife Service Biological Report 89(14):1-27.
 

 Tyus, H.M. and N.J. Nikirk. 1989. Abundance, growth, and diet of channel catfish (Ictalurus punctatus) in the Green and Yampa Rivers, Colorado and Utah. U.S. Fish and Wildlife Service, Vernal, Utah, and University of Washington, Seattle. 23 pages.
 

 U.S. Bureau of Reclamation. 1989. Ruedi Reservoir, Colorado Round II Water Marketing Program, Final Supplement to the Environmental Statement. Frying Pan-Arkansas Projects, Colorado and U.S. Bureau of Reclamation, Billings, Montana.
 

 U.S. Fish and Wildlife Service. 1989. Endangered and threatened wildlife and plants: animal notice of review. Federal Register 54(4):557.
 

 U.S. Fish and Wildlife Service. 1989. Lake Havasu fishery study. A cooperative investigation on the Havasu Intake, Central Arizona Project, La Paz, Arizona. U.S. Fish and Wildlife Service, Phoenix, Arizona, U.S. Bureau of Reclamation, Phoenix, Arizona, and Arizona Game and Fish Department, Phoenix, Arizona. 45 pages.
 

 Valdez, R.A. and W.J. Masslich. 1989. Wintertime movement and habitat of adult Colorado squawfish and razorback suckers. Contract report 6-CS-40-04490 BIO/WEST, Inc., Logan, Utah. 184 pages.
 

 Valdez, R.A. and W.J. Masslich. 1989. Winter habitat study of endangered fish, Green River: wintertime movement and habitat of adult Colorado squawfish and razorback suckers. BIO/WEST, Inc., Logan, Utah.
 

 Wick, E.J. and J.A. Hawkins. 1989. Colorado squawfish winter habitat study, Yampa River, Colorado. Final report. Colorado State University Larval Fish Laboratory, Fort Collins.
 

 Wydoski, R.S. and J.F. Hamill. 1989. Evolution of a Cooperative Recovery Program for Endangered Fishes in the Upper Colorado River Basin. Draft. U.S. Fish and Wildlife Service. 28 pages.
 

 Anonymous 1990. Proposed listings, May 1990. Endangered Species Technical Bulletin 15(5):4-5.
 

 Bestgen, K.R. 1990. Status review of the razorback sucker, Xyrauchen texanus. U.S. Bureau of Reclamation, Upper Colorado Regional Office, Salt Lake City, Utah. 92 pages.
 

 Bozek, M.A., L.J. Paulson and G.R. Wilde. 1990. Effects of ambient Lake Mohave temperatures on development, oxygen consumption, and hatching success of the razorback sucker. Environmental Biology of Fishes 27(4):255-263.
 

 Burke, T.A. 1990. Ichthyoplankton drift past Headgate Rock Diversion Dam Colorado River, Arizona/California. Proceedings of the Annual Conference of the Western Association of Fish and Wildlife Agencies 70:133.
 

 California Department of Fish and Game. 1990. Fish planting receipt 9/20/1990. California Department of Fish and Game.
 

 California Department of Fish and Game. 1990. Fish planting receipt 1/31/1990. California Department of Fish and Game.
 

 California Department of Fish and Game. 1990. Fish planting receipt 2/26/1990. California Department of Fish and Game. 2 pages.
 

 California Department of Fish and Game. 1990. Fish planting receipt 2/27/1990. California Department of Fish and Game.
 

 Hendrickson, D.A. and D.M. Kubly. 1990. Grand Canyon humpback chub and razorback sucker monitoring project 1990 scope of work submitted 2/8/90 to National Park Service, Grand Canyon and Navajo Fish and Wildlife Window Rock, Arizona. Arizona Game and Fish Department, Phoenix. 31 pages.
 

 Hinchman, S. 1990. Endangered fish halt a Colorado dam. High Country News 22:7.
 

 Kinsolving, A.D. and M.B. Bain. 1990. New approach for measuring cover in fish habitat studies. Journal of Freshwater Ecology 5(3):373-378.
 

 McKay, T.S. 1990. Razorback sucker capture and transport in Lake Powell, April 1990. SERO (prepared for the Utah Division of Wildlife Resources) 7 pages.
 

 Nesler, T.P. 1990. Aquatic nongame research endangered fishes investigations. Colorado Division of Wildlife Fish Research Section, Fort Collins. 31 pages.
 

 Papoulias, D. and W.L. Minckley. 1990. Food limited survival of larval razorback sucker, Xyrauchen texanus, in the laboratory. Environmental Biology of Fishes 29(1):73-78.
 

 Paulin, K.M., H.M. Tyus and C.M. Williams. 1990. Response of young Colorado squawfish and razorback suckers to water flow and light intensity. Transactions of the American Fisheries Society.
 

 Pister, E.P. 1990. Desert fishes: an interdisciplinary approach to endangered species conservation in North America. Journal of Fish Biology 37(Suppl. A):183-187.
 

 Pucherelli, M.J., R.C. Clark and R.D. Williams. 1990. Upper basin interagency standardized monitoring program 1989: Green and Colorado Rivers habitat mapping using airborne video. U.S. Bureau of Reclamation, Denver, Colorado. 82 pages.
 

 Severson, S.H., C.A. Karp, H.M. Tyus and G.B. Haines. 1990. Rearing of razorback suckers at Ouray, Utah. Transactions of the American Fisheries Society of the Bonneville Chapter 1990.
 

 Sjoberg, J.C. 1990. Letter to Dr. Paul C. Marsh regarding razorback sucker and bonytail chub capture on Lake Mohave. Nevada Department of Wildlife, Las Vegas. 2 pages.
 

 Snyder, D.E. and R.T. Muth. 1990. Descriptions and identification of razorback, flannelmouth, white, Utah, bluehead, and mountain sucker larvae and early juveniles. Tech. Publ. No. 38. Colorado Division of Wildlife, Fort Collins. 152 pages.
 

 Sublette, J.S., M.D. Hatch and M. Sublette. 1990. Fishes of New Mexico. University of New Mexico Press, Albuquerque, New Mexico.
 

 Tyus, H.M. 1990. Effects of altered stream flows on fishery resources. Fisheries 15(3):18-20.
 

 Tyus, H.M. 1990. Management of native warmwater fishes of the upper Colorado River. 13 pages.
 

 Tyus, H.M. and C.A. Karp. 1990. Spawning and movements of razorback sucker Xyrauchen texanus (Abbott) in the Green River basin of Colorado and Utah. Southwestern Naturalist 35(4):427-433.
 

 Tyus, H.M. and N.J. Nikirk. 1990. Abundance, growth, and diet of channel catfish (Ictalurus punctatus) in the Green and Yampa Rivers, Colorado and Utah. Southwestern Naturalist 35:233-244.
 

 Tyus, H.M. and S.H. Severson. 1990. Growth and survival of larval razorback suckers Xyrauchen texanus in response to five artificial diets. Progressive Fish Culturist 52(3):197-200.
 

 Tyus, H.M., J.H. Williamson and P.B. Johnsen. 1990. Chemoreception, imprinting, and propagation of Colorado squawfish and razorback sucker. Final report to the Upper Colorado River Basin Recovery Implementation Program. U.S. Fish and Wildlife Service, Region 6, Denver, Colorado.
 

 U.S. Bureau of Reclamation. 1990. Memorandum: Comments on the draft biological/hydrological reports and draft biological opinion for the operation of Flaming Gorge Dam. U.S. Bureau of Reclamation, Salt Lake City, Utah.
 

 U.S. Fish and Wildlife Service. 1990. Study to determine the biological feasibility of pit tags for endangered fishes in the upper Colorado River basin. Final report. U.S. Fish and Wildlife Service, Colorado River Fishery Project, Grand Junction. 31 pages.
 

 U.S. Fish and Wildlife Service. 1990. Streamflow needs of rare and endangered fishes: Yampa River interim flow recommendations. Final report. U.S. Fish and Wildlife Service. 13 pages.
 

 Baucom, F.M. 1991. Report on the 1991 annual spring survey for razorback suckers and bonytail chubs in Lake Mohave, Arizona-Nevada, as well as reconnaissance for razorback suckers in the eastern portion of Lake Mead. U.S. Fish and Wildlife Service, Phoenix, Arizona.
 

 Bozek, M.A., L.J. Paulson, G.R. Wilde and J.E. Deacon. 1991. Spawning season of the razorback sucker, Xyrauchen texanus, in Lake Mohave, Arizona and Nevada. Journal of Freshwater Ecology 6(1):61-73.
 

 Colorado River Fishes Recovery Team. 1991. Colorado squawfish revised recovery plan (Original approved March 16, 1978). Colorado River Fishes Recovery Team. 56 pages.
 

 Commission on Geosciences, Environment and Resources. 1991. Colorado River Ecology and Dam Management: Proceedings of a Symposium May 24-25, 1990 Santa Fe, New Mexico. National Academy Press, Washington, D.C. 276 pages.
 

 Desert Fishes Council. 1991. Proceedings of the Desert Fishes Council Volumes XX and XXI Annual Symposia. Desert Fishes Council, Bishop, California. 279 pages.
 

 Echell, A.A. 1991. Conservation genetics and genetic diversity in freshwater fishes of Western North America. Pages 141-153 in W.L. Minckley and J.E. Deacon, eds. Battle Against Extinction: Native Fish Management in the American West. University of Arizona Press, Tucson.
 

 Hawkins, J.A. and T.P. Nesler. 1991. Nonnative fishes in the upper Colorado River basin: an issue paper. Colorado State University, Fort Collins. 72 pages.
 

 Holden, P.B. 1991. Ghosts of the Green River: impacts of Green River poisoning in management of native fishes. Pages 43-54 in W.L. Minckley and J.E. Deacon, eds. Battle Against Extinction: Native Fish Management in the American West. University of Arizona Press, Tucson.
 

 J.F. Sato and Associates, Inc. 1991. Annual site environmental report for calendar year 1991. J.F. Sato and Associates, Inc., Littleton, Colorado. 45 pages.
 

 Johnson, J.E. and B.L. Jensen. 1991. Hatcheries for endangered freshwater fishes. Pages 199-217 in W.L. Minckley and J.E. Deacon, eds. Battle Against Extinction: Native Fish Management in the American West. University of Arizona Press, Tucson.
 

 Marsh, P.C. and W.L. Minckley. 1991. Radiotelemetry of razorback suckers in the Gila River, eastern Arizona. Proceedings of the Desert Fishes Council 21:163-171.
 

 Minckley, W.L. 1991. Native fishes of the Grand Canyon Region: an obituary? Pages 124-177. In Colorado River Ecology and Dam Management. Proceedings of a Symposium May 24-25, 1990, Santa Fe, New Mexico. National Academic Press, Washington D.C. 228 pages.
 

 Minckley, W.L. and J.E. Deacon, eds. 1991. Battle Against Extinction: Native Fish Management in the American West. University of Arizona Press, Tucson. 517 pages.
 

 Minckley, W.L., P.C. Marsh, J.E. Brooks, J.E. Johnson and B.L. Jensen. 1991. Management toward recovery of the razorback sucker. Pages 303-357 in W.L. Minckley and J.E. Deacon, eds. Battle Against Extinction: Native Fish Management in the American West. University of Arizona Press, Tucson.
 

 Muth, R.T. and D.W. Beyers. 1991. Laboratory studies on predator-prey interactions between nonnative fishes and larval Colorado squawfish and razorback sucker. Final report. U.S. Fish and Wildlife Service, Grand Junction, Colorado.
 

 No author. 1991. Reconnaissance investigation of irrigation drainage in the San Juan River area, San Juan County, northwestern New Mexico. Executive summary. 
 

 Osmundson, D.B. and L.R. Kaeding. 1991. Recommendations for flows in the "15-Mile Reach" during October-June for maintenance and enhancement of endangered fish populations in the upper Colorado River. Final report. U.S. Fish and Wildlife Service, Colorado River Fishery Project, Grand Junction. 82 pages.
 

 Page, L.M. and B. M. Burr. 1991. Field Guide to Freshwater Fishes. Houghton Mifflin Company, Boston.
 

 Platania, S.P., K.R. Bestgen, M.A. Moretti, D.L. Propst and J.E. Brooks. 1991. Status of Colorado squawfish and razorback sucker in the San Juan River, Colorado, New Mexico, and Utah. Southwestern Naturalist 36(1):147-150.
 

 Rinne, J.N. and W.L. Minckley. 1991. Native fishes of arid lands: a dwindling resource of the desert southwest. General techical report RM-206. U.S. Department of Agriculture, Forest Service, Rocky Mountain Forest and Range Experiment Station, Fort Collins, Colorado. 45 pages.
 

 Schrader, P.A. 1991. Endangered and threatened wildlife and plants: the razorback sucker (Xyrauchen texanus) determined to be an endangered species. Federal Register 56(205):54957-54967.
 

 Severson, S.H., H.M. Tyus and G.B. Haines. 1991. An evaluation of feeds for raising razorback sucker, Xyrauchen texanus. Journal of Applied Aquaculture 1(3):55-65.
 

 Tyus, H.M. 1991. Management of Colorado River fishes. U.S. Forest Service General Technical Report 207:175-182.
 

 Tyus, H.M. 1991. Management of native warmwater fishes of the upper Colorado River. Pages 175-182 in Warmwater Fishes Symposium I. U.S.DA Forest Service Technical Report RM-207.
 

 U.S. Fish and Wildlife Service. 1991. Endangered and threatened wildlife and plants: the razorback sucker (Xyrauchen texanus) determined to be an endangered species. Federal Register 56:54957–54967.
 

 Valdez, R.A. and R.G. Williams. 1991. Endangered fishes of Cataract Canyon. Proceedings of the Desert Fishes Council 20:25.
 

 Valdez, R.A. and W.J. Masslich. 1991. Winter habitat of adult Colorado squawfish and razorback sucker in the Green River, Utah. Proceedings of the Desert Fishes Council 20:87.
 

 Valdez, R.A. and W.J. Masslich. 1991. Wintertime movement and habitat of adult Colorado squawfish and razorback suckers in the Green River. Proceedings of the Desert Fishes Council 20:27-46.
 

 Vives, S.P. 1991. Alarm reactions of some southwestern fishes. Proceedings of the Desert Fishes Council 21:227.
 

 Angradi, T.R., R.W. Clarkson, D.A. Kinsolving, D.M. Kubly, S.A. Morgensen. 1992. Glen Canyon Dam and the Colorado River: responses of the aquatic biota to dam operations. Cooperative agreement No. 9-FC-40-07940. Arizona Game and Fish Department.
 

 Barrett, P.J. 1992. Spatial habitat preference of smallmouth bass (Miropterus dolomieui), roundtail chub (Gila robusta), and razorback sucker (Xyrauchen texanus). Doctoral dissertation, University of Arizona, Tucson.
 

 Burdick, B.D. 1992. Plan to evaluate stocking to augment or restore razorback sucker in the upper Colorado River. Final report. U.S. Fish and Wildlife Service, Colorado River Fishery Project, Grand Junction. 56 pages.
 

 Creef, E.D., R.W. Clarkson and D.K. McGuinn-Robbins. 1992. Razorback sucker (Xyrauchen texanus) and Colorado squawfish (Ptychocheilus lucius) reintroduction and monitoring, Salt and Verde Rivers, Arizona, 1991–1992. Arizona Game and Fish Department, Research Branch Completion Report to Fish and Wildlife Service, Office of Endangered Species, Albuquerque, New Mexico. 18 pages.
 

 Desert Fishes Council. 1992. Proceedings of the Desert Fishes Council Volume XXIV Annual Symposium. Desert Fishes Council, Bishop, California. 95 pages.
 

 Desert Fishes Council. 1992. Proceedings of the Desert Fishes Council Volumes XXII and XXIII Annual Symposia and Index for Volumes XVI through XXIII. Desert Fishes Council, Bishop, California. 99 + pages.
 

 Dexter National Fish Hatchery. 1992. Dexter NFH stocking trip record 92-21. Dexter National Fish Hatchery.
 

 Gobalet, K.W. 1992. Colorado River fishes of Lake Cahuilla, Salton basin, southern California: a cautionary tale for zooarchaelogists. Bulletin of the Southern California Academy of Sciences 91(2):70-83.
 

 Hamill, J. 1992. Restoring and protecting instream flows for endangered fish in the upper Colorado River basin. Upper Colorado River Basin Recovery Program, Denver, Colorado. 13 pages.
 

 Hamilton, S.J 1992. Yankton FRS studies contaminant effects on endangered fish species. Endangered Species Technical Bulletin 18:19.
 

 Hamilton, S.J. and K.J. Buhl. 1992. Contaminants may be adversely impacting endangered fish in the upper Colorado River. Western Division of the American Fisheries Society. 17 pages.
 

 Hamilton, S.J. and K.J. Buhl. 1992. Contaminant impacts on endangered fish in the San Juan River. 13th Annual Meeting Society of Environmental Toxicology and Chemistry Abstracts.
 

 Hamilton, S.J. and K.J. Buhl. 1992. Drain water impacts on Colorado squawfish, razorback sucker, and Bonytail in the middle Green River. 13th Annual Meeting Society of Environmental Toxicology and Chemistry Abstracts.
 

 Hendrickson, D.A. 1992. Arizona stockings of razorbacks and squawfish: history and future research and management challenges. Proceedings of the Desert Fishes Council 23:70.
 

 Horn, M.J. and P.C. Marsh. 1992. Predation by odonate naiads on larval razorback suckers under laboratory conditions. Final report. U.S. Bureau of Reclamation, Denver, Colorado. 8 pages.
 

 Jensen, B.L. 1992. Annual report, fiscal year 1992. U.S. Fish and Wildlife Service, Dexter, New Mexico. 17 pages.
 

 Johnson, J.E., M. Lyttle and M. Pardew. 1992. Predator recognition and avoidance by larval razorback sucker and northern hogsucker. Proceedings of the Desert Fishes Council 23:17.
 

 Marsh, P.C. and W.L. Minckley. 1992. Status of bonytail (Gila elegans) and razorback sucker (Xyrauchen texanus) in Lake Mohave, Arizona-Nevada. Proceedings of the Desert Fishes Council 23:18-23.
 

 Masslich, W.J. and R.A. Valdez. 1992. Dolores River as a reintroduction site for Colorado squawfish (Ptychocheilus lucius). Proceedings of the Desert Fishes Council 23:16.
 

 Mueller, G. 1992. Native fish work group--a multi agency endeavor to improve the status of the razorback sucker in Lake Mohave, Arizona-Nevada. Proceedings of the Desert Fishes Council 23:69.
 

 Mueller, G., M. Horn, J. Kahl, Jr., T. Burke and P. Marsh. 1992. Capture rates of razorback suckers (Xyrauchen texanus) in Lake Mohave, Arizona-Nevada, using larval fish traps equipped with different light intensities and bait. Appendix C in Native Fish Work Group Annual report. U.S. Bureau of Reclamation, Boulder City, Nevada.
 

 Papoulias, D. and W.L. Minckley. 1992. Effects of food availability on survival and growth of larval razorback suckers in ponds. Transactions of the American Fisheries Society 121(3):340-355.
 

 Propst, D.L. 1992. Vertebrate wildlife studies: warmwater fish communities Inventory and monitoring of warmwater stream fish communities in New Mexico. New Mexico Department of Game and Fish. 164 pages.
 

 Pucherelli, M.J. and W.P. Goettlicher. 1992. Mapping instream habitat on the San Juan River using airborne videography. U.S. Bureau of Reclamation. 47 pages.
 

 Scholz, A.T., R.J. White, S.A. Horton and V.A. Koehler. 1992. Measurement of egg and larval thyroxin concentration as an indicator of the critical period for imprinting in razorback suckers [Xyrauchen texanus (Abbot)]: implications for endangered stocks in the Colorado River basin. Final report. Eastern Washington University Department of Biology. 26 pages.
 

 Schrader, P.A. 1992. Razorback sucker, Xyrauchen texanus. Official World Wildlife Fund Guide to Endangered Species of North America 3:1436-1438.
 

 Snyder, D.E. 1992. Impacts of electrofishing on fish. Colorado State University Larval Fish Laboratory Contribution 50, Fort Collins. 107 + pages.
 

 Tyus, H.M. 1992. An instream flow philosophy for recovering endangered Colorado River fishes. Rivers 3(1):27-36.
 

 Tyus, H.M. 1992. Chemoreception, imprinting, and propagation of Colorado squawfish and razorback sucker: a plan of study. Proceedings of the Desert Fishes Council 22:9-21.
 

 Tyus, H.M. 1992. Razorback sucker listed as endangered: a further decline in the Colorado River system. Endangered Species Update 9(5):1-3.
 

 U.S. Bureau of Reclamation. 1992. Study of alternative water supplies for endangered fishes in the "15-Mile Reach" of the Colorado River. U.S. Bureau of Reclamation, Upper Colorado Region, Grand Junction, Colorado. 78 pages.
 

 U.S. Environmental Protection Agency. 1992. Enforcement accomplishments report, fiscal year 1991. U.S. Environmental Protection Agency, Washington, D.C. 158 pages.
 

 U.S. Fish and Wildlife Service. 1992. Biological opinion on operation of Flaming Gorge Dam. Final. U.S. Fish and Wildlife Service, Denver, Colorado.
 

 U.S. Fish and Wildlife Service. 1992. U.S. Fish and Wildlife Service to establish critical habitat for razorback sucker. 
 

 Wick, E.J. 1992. River management and habitat restoration strategy. Proceedings of the Desert Fishes Council 22-23:71-75.
 

 Wolkomir, J.R. and R. Wolkomir. 1992. Junkyard Bandicoots and Other Tales of the World's Endangered Species. J. Wiley, New York, New York. 122 pages.
 

 Baucom, F.M. 1993. Report on the March 1993 annual razorback sucker and bonytail chub survey in Lake Mohave, Arizona-Nevada. U.S. Fish and Wildlife Service, Phoenix, Arizona. 12 pages.
 

 Bolin, J.H., Jr. 1993. Of razorbacks and reservoirs: the Endangered Species Act's protection of endangered Colorado River basin fish. Pace Environmental Law Review 11(1):35-87.
 

 Brooks, J.E., L. Crist, L.A. Ahlm, R.Bliesner, M.J. Buntjer, W.P. Goettlicher, K. Lashmett, W.J. Miller, D.L. Propst and D.W. Ryden. 1993. San Juan River seven year research program summary report 1992. U.S. Bureau of Reclamation, San Juan River Recovery Implementation Program. 20 pages.
 

 Brookshire, D.S., M. McKee and G. Watts. 1993. Economic analysis of proposed critical habitat designation in the Colorado River basin for the razorback sucker, humpback chub, Colorado squawfish, and bonytail. Draft. U.S. Bureau of Land Management, Washington, D.C. 47 pages.
 

 Burdick, B.D. and R.L. Hamman. 1993. Study to evaluate several tagging and marking systems for Colorado squawfish, razorback sucker, and bonytail. Final report. U.S. Fish and Wildlife Service, Colorado River Fishery Project, Grand Junction. 56 pages.
 

 Burke, T. 1993. Agency report: Bureau of Reclamation, Lower Colorado Region. Proceedings of the Desert Fishes Council 24:12-13.
 

 Burke, T. and G. Mueller. 1993. Native Fish Work Group 1992 Annual report. U.S. Bureau of Reclamation.
 

 Buth, D.G., T.R. Haglund and S. Drill. 1993. Preliminary report on razorback suckers from Etter Pond. University of California Los Angeles, Department of Biology, Los Angeles. 8 + pages.
 

 Buth, D.G., T.R. Haglund and V.P.F. Cassano. 1993. Gene expression in the razorback sucker, Xyrauchen texanus. Proceedings of the Desert Fishes Council 24:41.
 

 Carlson, C.A. and R.T. Muth. 1993. Endangered species management. Pages 431-454 in C.C. Kohler and W.A. Huber, eds. Inland Fisheries Management, American Fisheries Society, Bethesda, Maryland.
 

 Clarkson, R.W., E.D. Creef and D.K. McGuinn-Robbins. 1993. Movements and habitat utilization of reintroduced razorback suckers (Xyrauchen texanus) and Colorado squawfish (Ptychocheilus lucius) in the Verde River, Arizona. Special report. Arizona Game and Fish Department, Nongame and Endangered Wildlife Program, Phoenix.
 

 Cooke, A.L. 1993. Hematological parameters of catostomidae. Master's thesis, University of Louisville, Kentucky. 191 pages.
 

 Creef, E.D. and R.W. Clarkson. 1993. Movement patterns and habitat use of razorback suckers (Xyrauchen texanus) in the Verde River, Arizona. Proceedings of the Desert Fishes Council 24:63.
 

 Desert Fishes Council. 1993. Proceedings of the Desert Fishes Council Volume XXV Annual Symposium. Desert Fishes Council, Bishop, California. 80 pages.
 

 Dowling, T.E. and W.L. Minckley. 1993. Mitochondrial DNA diversity within and among populations of the razorback sucker, Xyrauchen texanus. Proceedings of the Desert Fishes Council 24:64.
 

 Filipski, A.J. and T.E. Dowling. 1993. Tests of models explaining patterns of mitochondrial DNA diversity among populations of razorback sucker by computer simulation. Proceedings of the Desert Fishes Council 24:64-65.
 

 Hamill, J. 1993. Upper Colorado River basin endangered fish recovery initiative. Working Paper 93-12, September 27, 1993. Intractable Conflict/Constructive Confrontation Project, Conflict Resolution Consortium, University of Colorado, Boulder, Colorado. 4 pages.
 

 Hamill, J.F. 1993. Endangered Colorado River fishes (upper basin). Proceedings of the Desert Fishes Council 24:5.
 

 Hamilton, S.J. 1993. Significance of selenium in eggs and milt of razorback suckers in the middle Green River. Final report. U.S. Fish and Wildlife Service, Salt Lake City, Utah. 22 pages.
 

 Heinrich, J.E. and J.C. Sjoberg. 1993. Status of Nevada fishes. Proceedings of the Desert Fishes Council 25:10-13.
 

 Hepworth, D.K., M.J. Ottebbacher and D.L. Archer.  1993. An evaluation of native fishes of the Fremont River in or near Capitol Reef National Park. Utah Division of Wildlife Resources Publication 5(93-5):1-17.
 

 Horn, M.J. and P.C. Marsh. 1993. Production of razorback sucker in a backwater at Yuma Cove, Lake Mohave, Arizona and Nevada, 1992. Arizona State University, Tempe. 20 + pages.
 

 Houlberg, L.M., G.T. Hawkins, M.S. Salk, G.S. Danford and E.B. Lewis. 1993. Environmental Regulatory Update Table, September/October 1993. Oak Ridge National Laboratory, Tennessee. 122 pages.
 

 Jacobs Engineering Group, Inc. 1993. Environmental assessment of remedial action at the Maybell Uranium Mill Tailings Site near Maybell, Colorado. Jacobs Engineering Group, Inc., Albuquerque, New Mexico. 129 pages.
 

 Jacobs Engineering Group, Inc. 1993. Environmental assessment of remedial action at the Naturita Uranium Processing Site near Naturita, Colorado. Revision 1. Jacobs Engineering Group, Inc., Albuquerque, New Mexico. 131 pages.
 

 James, S.R. 1993. Cyprinids and catostomids from the prehistoric Hohokam site of Pueblo Grande in Phoenix, Arizona. Proceedings of the Desert Fishes Council 24:28.
 

 Jensen, B.L. 1993. Annual report, fiscal year 1993. U.S. Fish and Wildlife Service, Dexter, New Mexico. 27 pages.
 

 Johnson, J.E., M.G. Pardew and M.M. Lyttle. 1993. Predator recognition and avoidance by larval razorback sucker and northern hog sucker. Transactions of the American Fisheries Society 112(6):1139-1145.
 

 Kubly, D.M. and K.L. Young. 1993. Arizona Game and Fish Department, 1991-1992 activities. Proceedings of the Desert Fishes Council 24:7-8.
 

 Maddux, H.R. 1993. Overview of the proposed critical habitat designation for the four Colorado River endangered fishes. U.S. Fish and Wildlife Service, Salt Lake City, Utah. 65 pages.
 

 Maddux, H.R., L.A. Fitzpatrick, W. Noonan and H. Tyus. 1993. Proposed determination of critical habitat for the Colorado River endangered fishes: razorback sucker, Colorado squawfish, humpback chub and bonytail chub. Federal Register 58(18):6578-6597.
 

 Maddux, H.R., L.A. Fitzpatrick, W. Noonan and H. Tyus. 1993. Colorado River endangered fishes critical habitat: biological support document. U.S. Fish and Wildlife Service, Salt Lake City, Utah. 225 pages.
 

 Marsh, P.C. 1993. Summary of manual spawning of razorback suckers at Lake Mohave, Arizona, 1993. U.S. Bureau of Reclamation, Boulder City, Nevada. 3 pages.
 

 Marsh, P.C. 1993. Biological assessment on the impact of the Basin and Range Geoscientific Experiment (BARGE) on federally listed fish species in Lake Mead, Arizona and Nevada. Draft. Arizona State University, Center for Environmental Studies, Tempe, Arizona.
 

 Modde, T. and E. Wick. 1993. Status review of the razorback sucker, Xyrauchen texanus, in the upper Green River. Proceedings of the Desert Fishes Council 24:59.
 

 Mueller, G., M. Horn, J. Kahl, Jr., T. Burke and P. Marsh. 1993. Use of larval light traps to capture razorback sucker (Xyrauchen texanus) in Lake Mohave, Arizona-Nevada. Southwestern Naturalist 38(4):399-402.
 

 Mueller, G., T. Burke, J.J. Kahl, M. Horn and P.C. Marsh. 1993. Collection of razorback sucker larvae (Xyrauchen texanus) using different light intensities in Lake Mohave, Arizona. Proceedings of the Desert Fishes Council 24:60.
 

 No author. 1993. Coordination Committee 19 October 1993. San Juan River Basin Recovery Implementation Program, U.S. Fish and Wildlife Service, Albuquerque, New Mexico.
 

 No author. 1993. San Juan River Basin Recovery Implementation Program Coordination Committee Meeting 15 June 1993. 
 

 Quartarone, F.G. 1993. Results of a historical research project about the endangered fish of the upper Colorado River basin. Proceedings of the Desert Fishes Council 24:37-38.
 

 Rahel, F.J., R.T. Muth and C.A. Carlson. 1993. Endangered species management. Chapter 16 in C. Kohler and W. Hubert, eds. Inland Fisheries Management in North America. American Fisheries Society, Bethesda, Maryland.
 

 Rinne, J.N. 1993. Wildlife viewpoint, southwestern riparian-stream areas: habitats for fishes. Pages 46-51 in Riparian Management: Common Threads and Shared interests, A Western Regional Conference on River Management Strategies. U.S. Forest Service.
 

 Ruppert, J.B., R.T. Muth and T.P. Nessler. 1993. Predation on fish larvae by adult red shiner, Yampa and Green Rivers, Colorado. Southwestern Naturalist 38(4):397-399.
 

 Ryden, D.W. and F.K. Pfeifer. 1993. Adult fish collections on the San Juan River (1991-1992). U.S. Fish and Wildlife Service, Grand Junction, Colorado. 69 pages.
 

 Scholz, A.T., R.J. White, S.A. Horton, M.B. Tilson, C.I. Williams and B. Haines. 1993. Thyroxine concentrations and chemical imprinting of razorback suckers (Xyrauchen texanus) and Colorado squawfish (Ptychocheilus lucius) eggs and larva raised at Dexter National Fish Hatchery, New Mexico. Technical report no. 3. Eastern Washington University, Department of Biology, Colorado River Fisheries Chemoreception Project. 73 pages.
 

 Shroufe, D.L. 1993. Arizona Game and Fish Department annual report on subpermit PRT-676811 from December 1992 through November 1993. Arizona Game and Fish Department, Phoenix. 10 pages.
 

 Smith, D.M. 1993. Predator avoidance behavior in larval fishes. Proceedings of the Desert Fishes Council 24:60-61.
 

 Stanford, J.A. 1993. Instream flows to assist the recovery of endangered fishes of the upper Colorado River basin: review and synthesis of ecological information, issues, methods and rationale. 89 pages.
 

 Stewart, J.D. and M.A. Roeder. 1993. Razorback sucker (Xyrauchen) fossils from the Anza Borrego Desert and the ancestral Colorado River. San Bernardino County Museum Association Special Publication 1:94-96.
 

 Swift, C.C., T.R. Haglund, M. Ruiz and R.N. Fisher. 1993. Status and distribution of the freshwater fishes of southern California. Bulletin of the Southern California Academy of Sciences 92:101-167.
 

 Tyus, H.M. 1993. Endangered and threatened wildlife and plants: determining critical habitat for the Colorado River endangered fishes. Federal Register 58(217):59979-59980.
 

 U.S. Department of Energy. 1993. Annual site environmental report for calendar year 1993. U.S. Department of Energy, Western Area Power Administration, Golden, Colorado. 68 pages.
 

 U.S. Department of Energy. 1993. Non-federal participation in AC Intertie Draft Environmental Impact Statement: appendices. U.S. Department of Energy, Bonneville Power Administration, Portland, Oregon. 474 pages.
 

 URS Consultants. 1993. State of Colorado hatchery feasibility study for endangered fishes of the Colorado River basin. Volumes I and II. URS Consultants.
 

 Valdez, R.A. and R.D. Williams. 1993. Ichthyofauna of the Colorado and Green Rivers in Canyonlands National Park, Utah. National Park Service Transactions and Proceedings Series 10:2-22.
 

 Wydoski, R., J.H. Williamson and D. Toney. 1993. Coordinated hatchery facility plan. U. S. Fish and Wildlife Service.
 

 American River Management Society. 1994. Rivers without boundaries. Proceedings of the Second Biannual ARMS Symposium on River Planning and Management, American River Management Society.
 

 Anderson, R. 1994. Endangered fishes. Colorado Division of Wildlife Fish Research Section. 49 pages.
 

 Beard, D.P. 1994. U.S. Bureau of Reclamation revamps efforts to help fish. Fisheries 19(7):6-7.
 

 Beeny, L. 1994. Natives. Wyoming Wildlife 58(11):20-29.
 

 Brookshire, D.S., M. McKee and G. Watts. 1994. Economic analysis of critical habitat designation in the Colorado River basin for the razorback sucker, humpback chub, Colorado squawfish, and bonytail. Final report. U.S. Fish and Wildlife Service, Denver, Colorado.
 

 Burke, T., et.al. 1994. Lake Mohave razorback sucker rearing program: 1994 accomplishments. 8 pages.
 

 Butler, D.L., W.G. Wright, K.C. Stewart, B.C. Osmundson, R.P. Krueger and D.W. Crabtree. 1994. Detailed study of selenium and other constituents in water, bottom sediment, soil, alfalfa, and biota associated with irrigation drainage in the Uncompahgre Project Area and in the Grand Valley, west-central Colorado, 1991-93. U.S. Geological Survey, Water-Resources Investigations. 136 pages.
 

 Carothers, C. and C. Sealing. 1994. Native fish of Colorado, 1994 report for speckled dace, mountain sucker, brook stickleback, flannelmouth sucker, roundtail chub, Colorado squawfish, bluehead sucker, Colorado River cutthroat trout, mottled sculpin, humpback chub, and razorback sucker. Colorado Division of Wildlife. 9 pages + maps.
 

 Collins, K. 1994. Conceptual management plan for razorback sucker habitat enhancement in flooded bottomlands, Scott M. Matheson Wetland Preserve Moab, Utah. Colorado River Recovery Program. 36 pages.
 

 Cooper, D.J. and C. Severn. 1994. Baseline reports on five upper basin bottomland sites. Final. 403 pages.
 

 Cranney, J.S. 1994. Lower Duchesne River fishery investigations 1993. Draft report. Utah Division of Wildlife Resources, Vernal. 36 pages.
 

 Davis, D.L., D.K. Shiozawa and R.P. Evans. 1994. An appraisal of the usefulness of polymerase chain reaction amplified mitochondrial DNA to separate some western catostomids. Proceedings of the Desert Fishes Council 25:30.
 

 Dowling, T.E. and W.L. Minckley. 1994. Genetic diversity of razorback sucker as determined by restriction endonuclease analysis of mitochodrial DNA. Award no. 0-FC-40-09530-004. Arizona State University, Tempe. 45 pages.
 

 Drill, S.L. 1994. Genetic analysis of artificial propagation of the endangered razorback sucker, Xyrauchen texanus. Proceedings of the Desert Fishes Council 26:29.
 

 Gobalet, K.W. 1994. Additional archaeological evidence for Colorado River fishes in the Salton Basin of southern California. Bulletin of the Southern California Academy of Sciences 93(1):38-41.
 

 Gutermuth, F.B., L.D. Lentsch and K.R. Bestgen. 1994. Collection of age-0 razorback sucker (Xyrauchen texanus) in the Lower Green River, Utah. Southwestern Naturalist 39(4):389-391.
 

 Hamill, J. 1994. Recovery implementation program for endangered fishes in the upper Colorado River basin. Page 299 in American River Management Society, eds. Rivers Without Boundaries: Proceedings of the Second Biannual ARMS Symposium on River Planning and Management, American River Management Society.
 

 Hamill, J.F. 1994. Endangered Colorado River fishes (upper basin). Proceedings of the Desert Fishes Council 25:1-2.
 

 Hamilton, S.J. and B. Waddell. 1994. Selenium in eggs and milt of razorback sucker (Xyrauchen texanus) in the Middle Green River, Utah. Archives of Environmental Contamination and Toxicology 27(2):195-201.
 

 Holden, P.B. 1994. Razorback sucker investigations in Lake Mead, 1994. Report of Bio/West, Inc., Logan, Utah, to Southern Nevada Water Authority. Southern Nevada Water Authority.
 

 Horn, M.J., P.C Marsh, G.A. Mueller and T.A. Burke. 1994. Predation by odonate nymphs on larval razorback suckers (Xyrauchen texanus) under laboratory conditions. Southwestern Naturalist 39(4):371-374.
 

 Houlberg, L.M., G.T. Hawkins, M.S. Salk, G.S. Danford and E.B. Lewis. 1994. Environmental Regulatory Update Table, January--February 1994. Oak Ridge National Laboratory, Tennessee. 106 pages.
 

 Houlberg, L.M., G.T. Hawkins, M.S. Salk, G.S. Danford and E.B. Lewis. 1994. Environmental Regulatory Update Table, November--December 1993. Oak Ridge National Laboratory, Tennessee. 180 pages.
 

 Illinois Natural History Survey. 1994. Etter Pond razorback sucker genetics report. Illinois Natural History Survey, Center for Aquatic Ecology (Genetics Panel), 2.
 

 Jacobs Engineering Group, Inc. 1994. Baseline risk assessment of ground water contamination at the Uranium Mill Tailings Sites near Slick Rock, Colorado. Jacobs Engineering Group, Inc., Albuquerque, New Mexico. 238 pages.
 

 Jacobs Engineering Group, Inc. 1994. Baseline risk assessment of ground water contamination at the Uranium Mill Tailings Site near Gunnison, Colorado. Revision 1. Jacobs Engineering Group, Inc., Albuquerque, New Mexico. 157 pages.
 

 Jacobs Engineering Group, Inc. 1994. Baseline risk assessment of ground water contamination at the Uranium Mill Tailings Site near Grand Junction, Colorado. Jacobs Engineering Group, Inc., Albuquerque, New Mexico. 185 pages.
 

 Jacobs Engineering Group, Inc. 1994. Environmental assessment of remedial action at the Maybell Uranium Mill Tailings Site near Maybell, Colorado: Revision 2. Jacobs Engineering Group, Inc., Albuquerque, New Mexico. 137 pages.
 

 Jacobs Engineering Group, Inc. 1994. Environmental assessment of remedial action at the Naturita Uranium Processing Site near Naturita, Colorado: Revision 5. Jacobs Engineering Group, Inc., Albuquerque, New Mexico. 159 pages.
 

 Jacobs Engineering Group, Inc. 1994. Environmental assessment of remedial action at the Slick Rock Uranium Mill Tailings sites, Slick Rock, Colorado. Revision 1. Jacobs Engineering Group, Inc., Albuquerque, New Mexico. 180 pages.
 

 Jacobs Engineering Group, Inc. 1994. Environmental assessment of remedial action at the Naturita Uranium Processing Site near Naturita, Colorado. Revision 3. Jacobs Engineering Group, Inc., Albuquerque, New Mexico. 144 pages.
 

 Jacobs Engineering Group, Inc. 1994. Environmental assessment of remedial action at the Naturita Uranium Processing Site near Naturita, Colorado. Revision 2. Jacobs Engineering Group, Inc., Albuquerque, New Mexico. 161 pages.
 

 Jacobs Engineering Group, Inc. 1994. Environmental assessment of remedial action at the Slick Rock Uranium Mill Tailings sites Slick Rock, Colorado. Revision 2. Jacobs Engineering Group, Inc., Albuquerque, New Mexico. 157 pages.
 

 Jacobs Engineering Group, Inc. 1994. Environmental assessment of remedial action at the Naturita Uranium Processing Site near Naturita, Colorado. Revision 4. Jacobs Engineering Group, Inc., Albuquerque, New Mexico. 148 pages.
 

 Jacobs Engineering Group, Inc. 1994. Environmental assessment of remedial action at the Maybell Uranium Mill Tailings Site near Maybell, Colorado: Revision 1. Jacobs Engineering Group, Inc., Albuquerque, New Mexico. 134 pages.
 

 Jensen, B.L. 1994. Annual report, fiscal year 1994. U.S. Fish and Wildlife Service, Dexter, New Mexico. 30 pages.
 

 Madson, C. 1994. Between two worlds. Wyoming Wildlife 58(11):30-33.
 

 Marsh, P.C. 1994. Abundance, movements, and status of adult razorback sucker, Xyrauchen texanus, in Lake Mohave, Arizona and Nevada. Proceedings of the Desert Fishes Council 25:35-36.
 

 Marsh, P.C. 1994. Protocol for capture of wild razorback sucker larvae from Lake Mohave, Arizona and Nevada. U.S. Bureau of Reclamation, Boulder City, Nevada. 8 pages.
 

 Marsh, P.C. 1994. Rearing native Colorado River fishes in golf course ponds. Arizona State University, Tempe. 22 + pages.
 

 Marsh, P.C. and H.M. Tyus. 1994. Razorback sucker. Contribution to compendium. Pages 372-374 in C.G. Thelander, ed. Life on the Edge: A Guide to California's Endangered Natural Resources. Biosystem Books, Santa Cruz, California.
 

 Martinez, P.J., T.E. Chart, M.A. Trammell, J.G. Wullschleger and E.P. Bergersen. 1994. Fish species composition before and after construction of a main stem reservoir on the White River, Colorado. Environmental Biology of Fishes 40(3):227-239.
 

 Minckley, C.O. 1994. Report of the U.S. Fish and Wildlife Service Parker Fishery Resource Office. Proceedings of the Desert Fishes Council 25:6-9.
 

 Modde, T. and D.B. Irving. 1994. Conceptual management plan for habitat enhancement in Old Charley Wash. Colorado River Recovery Program. 31 pages.
 

 Mueller, G. 1994. Interagency work group attempts to save razorback sucker in Lake Mohave. Colorado Plateau 4(2):4-5.
 

 Mueller, G., T. Burke and M. Horn. 1994. Program to maintain the endangered razorback sucker in a highly modified riverine habitat. Pages 77-85 in W.O. Deason and S.S. Anderson, eds. Environmental Enhancements of Water Projects. U.S. Committee on Irrigation and Drainage, Denver, Colorado.
 

 National Biological Service. 1994. Endangered fish in the Green River of Utah are adversely affected by inorganic contaminants in irrigation water. National Biological Service Research Information Bulletin, Number 29.
 

 National Biological Service. 1994. Selenium may harm razorback suckers in the Green River, Utah. National Biological Service Research Information Bulletin, Number 14.
 

 No author. 1994. Coordination Committee 3 November 1994. San Juan River Basin Recovery Implementation Program, U.S. Fish and Wildlife Service, Albuquerque, New Mexico.
 

 No author. 1994. Coordination Committee 30 June 1994. San Juan River Basin Recovery Implementation Program, U.S. Fish and Wildlife Service, Albuquerque, New Mexico.
 

 Philipp, D. 1994. Additional razorback sucker genetics studies. Center for Aquatic Ecology, Illinois Natural History Survey. 6 pages.
 

 Repanshek, K. 1994. Fishing for the endangered. Wyoming Wildlife 58(11):34-37.
 

 Richardson, S. 1994. Conceptual management plan for razorback sucker habitat enhancement in flooded bottomlands, Escalante Ranch, Jensen, Utah. Recovery Implementation Program for Endangered Fishes of the Upper Colorado River Basin. 97 pages.
 

 Ruiz, L.D. 1994. Contaminants in water, sediment and biota from the Bill Williams River National Wildlife Refuge, Arizona. Master's thesis, University of Arizona, Tucson. 160 pages.
 

 Ryden, D.W. and F.K. Pfeifer. 1994. An experimental stocking plan for razorback suckers in the San Juan River. Final report. U.S. Fish and Wildlife Service, Grand Junction, Colorado.
 

 Scholz, A.T., M.B. Tilson, R.J. White, S.A. Horton, B. Haines, B. Jensen and R. Hamman. 1994. Thyroxine-induced chemical imprinting in Colorado squawfish (Ptychocheilus lucius) and razorback sucker (Xyrauchen texanus): results of 1993 investigations. Technology Report, Eastern Washington University, Cheney, Washington. Page 5.
 

 Secretaría de Desarrollo Social. 1994. Diario Oficial de la Federacion. Page 53. Secretaría de Desarrollo Social.
 

 Sjoberg, J.C. 1994. Status summary of the razorback sucker (Xyrauchen texanus) in Lake Mead, Nevada-Arizona. Nevada Division of Wildlife, Reno.
 

 Stanford, J.A. 1994. Instream flows to assist the recovery of endangered fishes of the upper Colorado River basin. Biological report 24. National Biological Survey, Polson, Montana. 47 pages.
 

 Stanford, J.A. and P.C. Nelson. 1994. Instream flows to assist the recovery of endangered fishes of the upper Colorado River basin. U.S. Fish and Wildlife Service, Denver, Colorado. 92 pages.
 

 SWCA, Inc. Environmental Consultants. 1994. Feasibility assessment for a multi-species management program, lower Colorado River. Salt Lake City, Arizona Department of Water Resources, Colorado River Board of California, Colorado River Commission of Nevada. 15 pages.
 

 U.S. Department of Energy. 1994. Salt Lake City Area Integrated Projects Electric Power Marketing. Draft environmental impact statement: Volume 2, Sections 1-16. U.S. Department of Energy, Western Area Power Administration, Salt Lake City, Utah. 441 pages.
 

 U.S. Department of Energy. 1994. PacifiCorp capacity sale. Draft environmental impact statement. U.S. Department of Energy, Bonneville Power Administration, Portland, Oregon. 416 pages.
 

 U.S. Department of Energy. 1994. Salt Lake City Area Integrated Projects Electric Power Marketing. Draft environmental impact statement: Volume 1, summary. U.S. Department of Energy, Western Area Power Administration, Salt Lake City, Utah. 31 pages.
 

 U.S. Department of Energy. 1994. Salt Lake City Area Integrated Projects Electric Power Marketing. Draft environmental impact statement: Volume 4, Appendixes B-D. U.S. Department of Energy, Western Area Power Administration, Salt Lake City, Utah. 162 pages.
 

 U.S. Department of Energy. 1994. Annual site environmental report for calendar year 1994. U.S. Department of Energy, Golden, Colorado. 68 pages.
 

 U.S. Department of Energy. 1994. Office of Technology Development technical reports. A bibliography. U.S. Department of Energy, Office of Scientific and Technical Information, Oak Ridge, Tennessee. 920 pages.
 

 U.S. Environmental Protection Agency. 1994. Watershed protection approach. 1993/94 activity report. U.S. Environmental Protection Agency, Office of Water, Washington, D.C. 150 pages.
 

 U.S. Fish and Wildlife Service. 1994. Notice of availability of draft modifications to the recovery action plan for the recovery implementation program for the endangered fish species in the Upper Colorado River Basin. Federal Register.
 

 U.S. Fish and Wildlife Service. 1994. Endangered and threatened wildlife and plants: determination of critical habitat for four Colorado River endangered fishes; final rule. Federal Register.
 

 U.S. Fish and Wildlife Service. 1994. Receipt of applications for permit. Federal Register.
 

 U.S. Fish and Wildlife Service. 1994. Designation of critical habitat for the threatened loach minnow and spikedace; final rules. Federal Register.
 

 U.S. Fish and Wildlife Service. 1994. Endangered and threatened wildlife and plants: designation of critical habitat for the threatened spikedace (Meda fulgida). Federal Register.
 

 U.S. Fish and Wildlife Service. 1994. Availability of revised recovery action plan for the recovery implementation program for endangered fish species in the upper Colorado River basin. Federal Register.
 

 U.S. Fish and Wildlife Service. 1994. Determination of critical habitat for four Colorado River fishes. Final rule. Federal Register 59(54):13374-13400.
 

 Valdez, R. 1994. Role of fisheries in managing the Colorado River in Grand Canyon - evaluating the operation of Glen Canyon Dam. Page 255 in American River Management Society, eds. Rivers Without Boundaries: Proceedings of the Second Biannual ARMS Symposium on River Planning and Management, American River Management Society.
 

 Williamson, J.H. and R.S. Wydoski. 1994. Genetics management guidelines. U.S. Fish and Wildlife Service, Denver, Colorado. 40 pages.
 

 Willis, C.F., D.L. Ward and A.A. Nigro. 1994. Development of a systemwide program: stepwise implementation of a predation index, predator control fisheries, and evaluation plan in the Columbia River Basin. Annual report 1992: Volume 1. Multi-group effort, first group listes: Oregon Department of Fish and Wildlife, Portland, Oregon. 363 pages.
 

 Wydoski, R.S. 1994. Coordinated hatchery facility plan: need for captive-reared endangered fish and propagation facilities. U.S. Fish and Wildlife Service, Denver, Colorado. 133 pages.
 

 Wydoski, R.S. 1994. Memorandum: Species composition of the fish community above and below the Price-Stub Diversion on the Colorado River. 12 pages.
 

 Young, C. 1994. New plan outlines steps to recover endangered fishes of the Colorado River system. Endangered Species Technical Bulletin 19(1):18-19.
 

 Young, K.L. 1994. Conservation management of the threatened Little Colorado spinedace (Lepidomeda vittata) and other Arizona Game and Fish Department activities. Proceedings of the Desert Fishes Council 25:13-14.
 

 Andrews, E.D., M.B. Bain, K.S. Loins, W.L. Minckley, J.A. Stanford, E. Wohl and R.S. Wydoski. 1995. Highlights of a peer review and roundtable discussion on the relationship of streamflow, geomorphology, and food web studies in recovery of the endangered fishes in the upper Colorado River basin. Colorado River Recovery Program. 15 pages.
 

 Arizona Game and Fish Department. 1995. Native fish diversity review. Arizona Game and Fish Department, Phoenix.
 

 Barrett, P.J. and O.E. Maughan. 1995. Spatial habitat selection of roundtail chub (Gila robusta) in two central Arizona streams. Southwestern Naturalist 40:301-307.
 

 Bauch, N.J. and L.E. Apodaca. 1995. Bibliography, indices, and data sources of water-related studies, upper Colorado River basin, Colorado and Utah, 1872-1995. U.S. Geological Survey, National Water-Quality Assessment Program, Denver, Colorado. 282 pages.
 

 Bradford, R.H. and B.R. Vlach. 1995. Razorback sucker habitat assessment indices for the lower Colorado River. U.S. Bureau of Reclamation contract report No. 2. Cooperative agreement 3-FC-34-028243. Arizona Game and Fish Department, Phoenix.
 

 Burdick, B.D. and F.K. Pfeifer. 1995. Discussion of the merits for fish passage at Hartland Diversion Dam on the Gunnison River near Delta, Colorado. Final report. U.S. Fish and Wildlife Service, Colorado River Fishery Project, Grand Junction. 8 pages.
 

 Burdick, B.D., R.S. Wydoski and C.W. McAda. 1995. Stocking plan for razorback sucker in the upper Colorado and Gunnison Rivers. Final report. U.S. Fish and Wildlife Service, Recovery Implementation Program for the Endangered Fishes of the Upper Colorado River Basin, Denver, Colorado. 13 pages.
 

 Burke, T. 1995. Rearing wild razorback sucker larvae in lake-side backwaters, Lake Mohave, Arizona/Nevada. Proceedings of the Desert Fishes Council 26:35.
 

 Buth, D.G., T.R. Haglund and S.L. Drill. 1995. Allozyme variation and population structure in the razorback sucker, Xyrauchen texanus. Proceedings of the Desert Fishes Council 26:28.
 

 California Department of Fish and Game. 1995. California Department of Fish and Game electrofishing survey. California Department of Fish and Game.
 

 Carpenter, J. 1995. Native and nonnative fish interactions in selected rivers of the southwest and intermountain west. 
 

 Colorado River Wildlife Council. 1995. Minutes Colorado River Fish & Wildlife Council, St. Tropez Hotel, Las Vegas, Nevada. Colorado River Wildlife Council.
 

 Desert Fishes Council. 1995. Proceedings of the Desert Fishes Council Volume XXVI Annual Symposium. Desert Fishes Council, Bishop, California. 149 pages.
 

 Dexter National Fish Hatchery. 1995. Dexter NFH stocking trip record 95-9. Dexter National Fish Hatchery.
 

 Dwyer, F.J., L.C. Sappington, D.R. Buckler and S.B. Jones. 1995. Use of surrogate species in assessing contaminant risk to endangered and threatened fishes. Final report. National Biological Service, Midwest Science Center, Columbia, Missouri. 82 pages.
 

 Flagg, T.A. and C.V.W. Mahnaken. 1995. An assessment of the status of captive broodstock technology for Pacific salmon. Final report. National Oceanic and Atmospheric Administration, Seattle, Washington. 311 pages.
 

 Gorman, O.T., T.R. Tiersch, J.H. Williamson and G.J. Carmichael. 1995. Germplasm storage to preserve genetic resources in the razorback sucker and bonytail chub. Proceedings of the Desert Fishes Council 26:29.
 

 Haines, G.B. 1995. Effects of temperature on hatching success and growth of razorback sucker and flannelmouth sucker. Final report. U.S. Fish and Wildlife Service, Vernal, Utah.
 

 Hamill, J.F. 1995. Background and overview of the recovery program for endangered fishes in the upper Colorado River basin. Proceedings of the Desert Fishes Council 26:95.
 

 Hamilton, S.J. 1995. Hazard assessment of inorganics to three endangered fish in the Green River, Utah. Ecotoxicology and Environmental Safety 30(2):134-142.
 

 Hamilton, S.J. and K.J. Buhl. 1995. Hazard assessment of inorganics, singly and in mixtures to Colorado squawfish and razorback sucker in the San Juan River, New Mexico. Final report. U.S. Bureau of Reclamation, San Juan River Recovery Implementation Program, Salt Lake City, Utah. 28 pages.
 

 Hines, R.T. 1995. Influence of suspended sediments on larval razorback sucker, Xyrauchen texanus, vulnerability to predation. Proceedings of the Desert Fishes Council 26:36.
 

 Hlohowskyj, I. and J.W. Hayse. 1995. Potential effects of four Flaming Gorge Dam hydropower operational scenarios on the fishes of the Green River, Utah and Colorado. Argonne National Laboratory, Illionois. 52 pages.
 

 Horn, M.J. 1995. Use of storage lipids as an indicator of nutritional status of individual larvae of the razorback sucker (Xyrauchen texanus). Proceedings of the Desert Fishes Council 26:35.
 

 J.F. Sato and Associates, Inc. 1995. Annual site environmental report for calendar year 1995. J.F. Sato and Associates, Inc., Littleton, Colorado. 80 pages.
 

 Jacobs Engineering Group, Inc. 1995. Baseline risk assessment of ground water contamination at the Uranium Mill Tailings Site near Durango, Colorado. Revision 1. Jacobs Engineering Group, Inc., Albuquerque, New Mexico. 150 pages.
 

 Jacobs Engineering Group, Inc. 1995. Baseline risk assessment of ground water contamination at the Uranium Mill Tailings Site near Naturita, Colorado. Revision 1. Jacobs Engineering Group, Inc., Albuquerque, New Mexico. 200 pages.
 

 Jacobs Engineering Group, Inc. 1995. Baseline risk assessment of ground water contamination at the Uranium Mill Tailings Sites near Slick Rock, Colorado. Revision 1. Jacobs Engineering Group, Inc., Albuquerque, New Mexico. 200 pages.
 

 Jacobs Engineering Group, Inc. 1995. Proposed remediation of the Maybell Uranium Mill Processing Site, Maybell, Colorado. Finding of no significant impact. Jacobs Engineering Group, Inc., Albuquerque, New Mexico. 22 pages.
 

 Jacobs Engineering Group, Inc. 1995. Baseline risk assessment of ground water contamination at the Uranium Mill Tailings Site near Naturita, Colorado. Jacobs Engineering Group, Inc., Albuquerque, New Mexico. 100 pages.
 

 Jacobs Engineering Group, Inc. 1995. Environmental assessment of remedial action at the Slick Rock Uranium Mill Tailings sites, Slick Rock, Colorado. Jacobs Engineering Group, Inc., Albuquerque, New Mexico. 156 pages.
 

 Jacobs Engineering Group, Inc. 1995. An assessment of potential hydrologic and ecologic impacts of constructing mitigation wetlands, Rifle, Colorado, UMTRA project sites. Jacobs Engineering Group, Inc., Albuquerque, New Mexico. 29 pages.
 

 Jacobs Engineering Group, Inc. 1995. Baseline risk assessment of ground water contamination at the Uranium Mill Tailings Sites near Rifle, Colorado. Revision 1. Jacobs Engineering Group, Inc., Albuquerque, New Mexico. 150 pages.
 

 LaRoe, E.T., G.S. Farris, C.E. Puckett, P.D. Doran, and M.J. Mac, eds. 1995. Our living resources: a report to the nation on the distribution, abundance, and health of U.S. plants, animals, and ecosystems. U.S. Department of the Interior, National Biological Service, Washington, DC. 530 pages.
 

 Marsh, P.C. 1995. Biological assessment of the impact on federally listed fishes of a water line and intake crib installation at Telephone Cove, Lake Mohave, Arizona (McAlister Intake Facility, Great Life Subdivision). Arizona State University, Tempe. 23 pages.
 

 Marsh, P.C. and W.L. Minckley. 1995. Recovery of a desert river fish: the long road back from the brink of extinction. Arizona Conservation Voter 4(2):7-8.
 

 Marsh, P.C. and W.L. Minckley. 1995. Species profile: razorback sucker (Xyrauchen texanus). Arizona Riparian Council 8(3):7-8.
 

 Martinez, A.M. 1995. Observed fin ray deformities resulting from handling stress in the intensive culture of razorback suckers. Colorado Division of Wildlife Fish Research Hatchery. 15 pages.
 

 Minckley, W.L. 1995. Fish distribution in the Gila River basin, American Southwest. Update to the first annual report, with examples of deliverables. Draft. American Rivers, Arizona State University, U.S. Fish and Wildlife Foundation, U.S. Bureau of Reclamation, U.S. Fish and Wildlife Service and U.S. Forest Service. 3 + pages.
 

 Minckley, W.L. 1995. Translocation as a tool for conserving imperiled fishes: Experiences in western United States. Biological Conservation 72(2):297-309.
 

 Modde, T. and D.B. Irving. 1995. Seasonal movements of razorback sucker in the middle Green River, Utah. Proceedings of the Desert Fishes Council 26:27.
 

 Modde, T. and G. Smith. 1995. Flow recommendations for endangered fishes in the Yampa River. U.S. Fish and Wildlife Service, Denver, Colorado. 45 pages.
 

 Modde, T., A.T. Scholz, J.H. Williamson, G.B. Haines, B.D. Burdick and F.K. Pfeifer. 1995. An augmentation plan for razorback sucker in the upper Colorado River basin. American Fisheries Society 15:102-111.
 

 Moyle, P.B. 1995. Fish: An Enthusiast's Guide. University of California Press, Berkeley.
 

 Mueller, G. 1995. Program for maintaining the razorback sucker in Lake Mohave. Pages 127-135 in H.L.J. Schramm and R.G. Piper, eds. Uses and Effects of Cultured Fishes in Aquatic Ecosystems: Proceedings of the International Symposium and Workshop Held in Albuquerque, New Mexico, March 1994. Volume 15. American Fisheries Society.
 

 Mueller, G. and P.C. Marsh. 1995. Bonytail and razorback sucker in the Colorado River Basin. Pages 324-326 in E.T. LaRoe, G.S. Farris, C.E. Puckett, D. Doran and M.J. Mac, eds. Our Living Resources: A Report to the Nation on the Distribution, Abundance, and Health of U.S. Plants, Animals, and Ecosystems.
 

 Mueller, G.A. 1995. Program for maintaining the razorback sucker in Lake Mohave. Uses and effects of cultured fishes in aquatic ecosystems. Proceedings of the International Symposium and Workshop held in Albuquerque, New Mexico, 12-17 March 1994. Harold L. Schramm Jr. and Robert G. Piper, eds. American Fisheries Society (15):127-135.
 

 Muth, R.T. 1995. Conceptual-framework document for development of a standardized monitoring program for basin-wide evaluation of restoration activities for razorback sucker in the Green and Upper Colorado River systems. Final report. Upper Colorado River Basin, Denver, Colorado.
 

 Muth, R.T. and S.M. Meismer. 1995. Marking otoliths in razorback sucker embryos and larvae with fluorescent chemicals. Southwestern Naturalist 40(2):241-244.
 

 National Biological Service. 1995. Irrigation drainwater may be harmful to endangered fish in the Green River of Utah. National Biological Service Research Information Bulletin, Number 8.
 

 Nelson, P.C., C.W. McAda and D. Wydoski. 1995. Potential for nonnative fishes to occupy and/or benefit from enhanced or restored floodplain habitat and adversely impact the razorback sucker. An issue paper. U.S. Fish and Wildlife Service, Denver, Colorado. 8 pages + appendices.
 

 No author. 1995. Baseline risk assessment of ground water contamination at the Uranium Mill Tailings Sites near Rifle, Colorado. U.S. Department of Energy, Contract AC04-91AL62350. Report number: DOE/AL/62350--179. 252 pages.
 

 No author. 1995. Coordination Committee Meeting April 20, 1995. San Juan River Basin Recovery Implementation Program, U.S. Fish and Wildlife Service, Albuquerque, New Mexico.
 

 No author. 1995. Coordination Committee meeting summary 28 September 1995. San Juan River Basin Recovery Implementation Program, U.S. Fish and Wildlife Service, Albuquerque, New Mexico.
 

 Osmundson, D.B., P. Nelson, K. Fenton and D.W. Ryden. 1995. Relationships between flow and rare fish habitat in the "15-mile Reach" of the Upper Colorado River. Final report. U.S. Fish and Wildlife Service, Recovery Implementation Program for the Endangered Fishes of the Upper Colorado River Basin, Denver, Colorado. 71 pages.
 

 Pfeifer, F.K., C.W. McAda, B.D. Burdick, R.M. Anderson, T.E. Chart and M.A. Trammell. 1995. Colorado River Recovery Program activities related to the Gunnison River and operation of the Aspinall Unit of the Colorado River Storage Project. Proceedings of the Desert Fishes Council 26:96.
 

 Philippart, J.C. 1995. Is captive breeding an effective solution for the preservation of endemic species? Biological Conservation 72(2):281-295.
 

 Propst, D.L. 1995. Native fish research and management in New Mexico during 1993 and 1994. Proceedings of the Desert Fishes Council 26:14.
 

 Qixing, Z. and D. Limei . 1995. Joint effects of chromium and phenol on marine prawns (Penaeus japonicus). Marine Pollution Bulletin 31(4-12):387-389.
 

 Reimus, C.R. 1995. Morphometric analysis of osteological components of the pre-dorsal keel of razorback sucker (Xyrauchen texanus). Master's thesis, Arizona State University, Tempe. 53 pages.
 

 Reimus, C.R. 1995. Morphological changes related to growth in razorback sucker, Xyrauchen texanus. Proceedings of the Desert Fishes Council 26:28.
 

 Ruppert, J.B. 1995. Effects of electrofishing fields on embryos and larvae of razorback sucker. Proceedings of the Desert Fishes Council 26:38-39.
 

 Ruppert, J.B. and R.T. Muth. 1995. Effects of electrofishing fields on embryos and larvae of razorback sucker. Final report. Colorado State University Larval Fish Laboratory, Fort Collins. 16 pages.
 

 Sappington, L.C.  1995. Use of surrogate species in assessing contaminant risk to endangered and threatened fishes. 90 pages.
 

 Sjoberg, J.C. 1995. Historic distribution and current status of the razorback sucker in Lake Mead, Nevada-Arizona. Proceedings of the Desert Fishes Council 26:24-27.
 

 Snyder, D.E. and S.M. Meismer. 1995. Efficiency of light traps for capture and retention of larval and young-of-the-year juvenile razorback sucker. Proceedings of the Desert Fishes Council 26:37.
 

 Starnes, W.C. 1995. Colorado River Basin fishes. Pages 149-152 in E.T. LaRoe, G.S. Farris, C.E. Puckett, D. Doran and M.J. Mac, eds. Our Living Resources: A Report to the Nation on the Distribution, Abundance, and Health of U.S. Plants, Animals, and Ecosystems.
 

 Stempel, M. and R.S. Wydoski. 1995. Guidelines for disposition of captive-reared endangered fish. Draft environmental assessment. U.S. Fish and Wildlife Service. 14 pages.
 

 Tetra Tech, Inc. 1995. Phase I inventory of current EPA efforts to protect ecosystems. Tetra Tech, Inc., Fairfax, Virginia. 365 pages.
 

 Tiersch, T.R.  1995. Cryopreservation of fish sperm: laboratory, hatchery and field studies of twenty species. Proceedings of the International Symposium on the Reproductive Physiology of Fish (5):147.
 

 U.S. Bureau of Reclamation. 1995. Environmental assessment Gunnison River activities, passageway around the Redlands Diversion Dam and interim agreement to provide water for endangered fish. Final. U.S. Bureau of Reclamation and U.S. Fish and Wildlife Service, Grand Junction, Colorado. 58 + pages.
 

 U.S. Bureau of Reclamation. 1995. Operation of Glen Canyon Dam. Final environmental impact statement summary. 
 

 U.S. Bureau of Reclamation. 1995. Navajo Unit, Colorado River Storage Project, Colorado-New Mexico. Federal Register 60(37):10405-10406.
 

 U.S. Department of Energy. 1995. Environmental assessment for the Uranium Lease Management Program. Final. U.S. Department of Energy, Grand Junction, Colorado. 105 pages.
 

 U.S. Department of Energy. 1995. Proposed remedial action at two uranium processing sites near Slick Rock, Colorado. Finding of no significant impact. Federal Register 60(36):10069-10072.
 

 U.S. Environmental Protection Agency. 1995. Geographic index of environmental articles, 1994. U.S. Environmental Protection Agency, Office of Research and Development, Center for Environmental Research Informaition, Cincinnati, Ohio. 126 pages.
 

 U.S. Environmental Protection Agency. 1995. National pollutant discharge elimination system storm water multi-sector general permit for industrial activities; notice. Final. Federal Register 60(189):50804-51319.
 

 U.S. Fish and Wildlife Service. 1995. San Juan River Basin Recovery Implementation Program. 
 

 Underwood, K.D. and J.P. Shields. 1995. Lake Roosevelt fisheries and limnological research. Annual report. Bonneville Power Administration, Public Information Center-CKPS-1, Portland, OR. Report number: DOE/BP/91819--15. 349 pages.
 

 Valdez, R.A. 1995. Synthesis of winter investigation of endangered fish in the Green River below Flaming Gorge Dam. Study #18-11. BIO/WEST, Inc., Logan, Utah.
 

 Waddell, B. and T. May. 1995. Selenium concentrations in the razorback sucker (Xyrauchen texanus): substitution of non-lethal muscle plugs for muscle tissue in contaminant assessment. Archives of Environmental Contamination and Toxicology 28(3):321-326.
 

 Alvarez, F. and J. Caleron. 1996. Distribution of Loxothylacus texanus (Cirripedia: Rhizocephala) parasitizing crabs of the genus Callinectes in the Southwestern Gulf of Mexico. Gulf Research Reports (Ocean Springs) 9(3):205-210.
 

 Amin, O.M. and W.L. Minckley. 1996. Parasites of some fish introduced into an Arizona reservoir, with notes on introduction. Journal of Helminthological Society of Washington 63(2):193-200.
 

 Arizona Game and Fish Department. 1996. Wildlife of special concern in Arizona. Draft. Arizona Game and Fish Department, Phoenix, Arizona. 32 pages.
 

 Arizona Game and Fish Department. 1996. Wildlife of special concern in Arizona. Draft. Arizona Game and Fish Department, Phoenix, Arizona. 32 pages.
 

 Brookshire, D., M. McKee and S. Stewart. 1996. Four corners regional focus on the economic impact of critical habitat designation for the razorback sucker, humpback chub, Colorado squawfish, and bonytail. University of New Mexico, Albuquerque, New Mexico. 83 pages.
 

 Buhl, K.J. and S.J. Hamilton. 1996. Toxicity of inorganic contaminants, individually and in environmental mixtures, to three endangered fishes (Colorado squawfish, bonytail, and razorback sucker). Archives of Environmental Contamination and Toxicology 30:84-92.
 

 California Department of Fish and Game. 1996. California Department of Fish and Game electrofishing survey. California Department of Fish and Game.
 

 Carmichael, G.J., J.H. Williamson, O.T. Gorman and T.R. Tiersch. 1996. Field propagation techniques for the endangered razorback sucker. North American Journal of Fisheries Management 16(4):963-966.
 

 Desert Fishes Council. 1996. Proceedings of the Desert Fishes Council Volume XXVII Annual Symposium. Desert Fishes Council, Bishop, California. 129 pages.
 

 Dexter National Fish Hatchery. 1996. Dexter NFH stocking trip record 96-4. Dexter National Fish Hatchery.
 

 Dexter National Fish Hatchery. 1996. Dexter NFH stocking trip record 96-7. Dexter National Fish Hatchery.
 

 Dexter National Fish Hatchery. 1996. Dexter NFH stocking trip record 96-7. Dexter National Fish Hatchery.
 

 Douglas, M.E. and P.C. Marsh. 1996. Seasonal and yearly population estimates for Catostomus latipinnis and Pantosteus discobolus (Teleostei, Catostomidae) in the Grand Canyon region of Arizona. Proceedings of the Desert Fishes Council 27:33.
 

 Dowling, T.E., W.L. Minckley and P.C. Marsh. 1996. Mitochondrial DNA diversity within and among populations of razorback sucker (Xyrauchen texanus) as determined by restriction endonuclease analysis. Copeia 3:542-550.
 

 Dowling, T.E., W.L. Minckley, P.C. Marsh and E.S. Goldstein. 1996. Mitochondrial DNA variability in the endangered razorback sucker (Xyrauchen texanus): analysis of hatchery stocks and implication for captive propagation. Conservation Biology 10(1):120-127.
 

 Duncan, R.B. 1996. Baseline and history of six wildlife species federally listed as threatened or endangered in the San Pedro River watershed, Arizona. Directorate of Engineering and Housing, Environmental Division, Fort Huachuca. 60 pages.
 

 Fabacher, D.L. and E.E. Little. 1996. Skin component may protect fishes from sunburn and fungal infection resulting from exposure to ultraviolet-B radiation. Pages 241-250 in J.S. Stolen, T.C. Fletcher, C.J. Bayne, C.J. Secombes, J.-T. Zelikoff, L.E. Twerdok, D.P. Anderson, eds. Modulators of Immune Responses: The Evolutionary Trail. SOS Publications, New Haven, New Jersey.
 

 Figiel, C.R. Jr., T.R. Tiersch, W.R. Wayman, O.T. Gorman, J.H. Williamson and G.J. Carmichael. 1996. Collection, storage and cryopreservation of sperm from endangered razorback suckers. Pages 16-18 in E.M Donaldson and D.D. MacKinlay, eds. Aquaculture Biotechnology Symposium Proceedings, International Congress of the Biology of Fishes.
 

 Gorman, O.T., T.R. Tiersch, C.R. Figiel Jr., W.R. Wayman, J.H. Williamson, and G.J. Carmichael. 1996. Broodstock development and propagation studies in the endangered razorback sucker: 1996 field studies. Proceedings of the Desert Fishes Council.
 

 Grand Canyon Trust. 1996. Colorado River Workshop: Issues, Iideas, and Directions. Proceedings report. Grand Canyon Trust and U.S. Bureau of Reclamation. 256 pages.
 

 Haines, B., et al. 1996. Umbrella project: chemoreception, imprinting and propagation of Colorado squawfish and razorback sucker. Project 31. FY 96 Annual Report of the Recovery Program for Endangered Fishes of the upper Colorado River Basin. U.S. Fish and Wildlife Service, Denver, Colorado.
 

 Hamilton, S.J., K.J. Buhl, F.A. Bullard and S.F. McDonald. 1996. Evaluation of toxicity to larval razorback sucker of selenium-laden food organisms from Ouray National Wildlife Refuge on the Green River, Utah. U.S. Fish and Wildlife Service, Denver, Colorado. 79 pages.
 

 Horn, M.J. 1996. Nutritional limitation of recruitment in the razorback (Xyrauchen texanus). Dissertation Abstracts International 57-10B:6128.
 

 Jacobs Engineering Group, Inc. 1996. Baseline risk assessment of ground water contamination at the Uranium Mill Tailings Site, near Gunnison, Colorado. Revision 2. Jacobs Engineering Group, Inc., Albuquerque, New Mexico. 156 pages.
 

 Jacobs Engineering Group, Inc. 1996. Biological assessment of remedial action at the abandoned Uranium Mill Tailings Site near Naturita, Colorado. Jacobs Engineering Group, Inc., Albuquerque, New Mexico. 53 pages.
 

 Jacobs Engineering Group, Inc. 1996. Baseline risk assessment of ground water contamination at the Uranium Mill Tailings Sites near Rifle, Colorado. Revision 2. Jacobs Engineering Group, Inc., Albuquerque, New Mexico. 252 pages.
 

 Karp, C.A. and G. Mueller. 1996. Annual report of razorback sucker telemetry study in the lower San Juan River, Utah. U.S. Bureau of Reclamation, Denver, Colorado.
 

 Kidd, G.T. 1996. Endangered fish of the upper Colorado River, observations from 1970 through 1995. U.S. Bureau of Reclamation (originally published as Appendix 3 to "Replacement of the Plateau Creek Pipeline Biological Assessment"). 12 pages.
 

 Lentsch, L., T. Crowl, P. Nelson and T. Modde. 1996. Levee removal strategic plan. Final report. Division of Wildlife Resources, Salt Lake City, Utah. 21 pages.
 

 Lentsch, L.D., R.T. Muth, P.D. Thompson, B.G. Hoskins and T.A. Crowl. 1996. Options for selective control of nonnative fishes in the upper Colorado River basin. Utah Division of Wildlife Resources, Salt Lake City.
 

 Lieberman, D.  1996. Water quality in western river reservoirs. 
 

 Little, E.E. and D.L. Fabacher. 1996. Exposure of freshwater fish to simulated solar UVB radiation. Pages 141-158 in G.K. Ostrander, ed. Techniques in Aquatic Toxicology. Lewis Publishers.
 

 Maddux, H.R. 1996. Environmental assessment for procedures for stocking of nonnative fish species in the upper Colorado River basin. Draft. U.S. Fish and Wildlife Service, Grand Junction, Colorado. 39 pages + appendices.
 

 Marsh, P.C. 1996. Yuma cove razorback sucker rearing experiments and prelimary genetic results. 2 page letter + appended documentation
 

 Marsh, P.C. 1996. Analysis of larval razorback sucker collections from Lake Mohave, Arizona and Nevada. U.S. Bureau of Reclamation, Boulder City, Nevada. 79 pages.
 

 Marsh, P.C. 1996. Threatened fishes of the world: Xyrauchen texanus (Abbott, 1860). Environmental Biology of Fishes 45(3):258.
 

 Marsh, P.C. 1996. Monitoring and status of fishes in Eagle Creek, Arizona. U.S. Bureau of Reclamation, Phoenix, Arizona. 12 pages + appendix.
 

 Martinez, A.M. 1996. Observed growth, survival, and caudal fin ray deformities of intensively cultured razorback suckers. Progressive Fish Culturist 58(4):263-267.
 

 Modde, T. 1996. Floodplains and razorback sucker in the middle Green River. Proceedings of the Annual Meeting of the Utah Mosquito Abatement Association 49:7-12.
 

 Modde, T. 1996. Juvenile razorback sucker (Xyrauchen texanus) in a managed wetland adjacent to the Green River. Great Basin Naturalist 56(4):375-376.
 

 Modde, T. 1996. Seasonal and annual movement patterns of razorback sucker in the Green and Yampa Rivers. Final report. Dinosaur National Monument, Dinosaur, Colorado. 28 pages.
 

 Modde, T., K.P. Burnham and E.J. Wick. 1996. Population status of the razorback sucker in the middle Green River (U.S.A). Conservation Biology 10(1):110-119.
 

 Mueller, G. 1996. Establishment of a fish community of the Hayden-Rhodes and Salt-Gila aqueducts, Arizona. North American Journal of Fisheries Management (Bethesda) 16(4):795-804.
 

 Muth, R.T. and J.B. Ruppert. 1996. Effects of two electrofishing currents on captive ripe razorback suckers and subsequent egg-hatching success. North American Journal of Fisheries Management 16:473-476.
 

 No author. 1996. Coordination Committee 11 April 1996. San Juan River Basin Recovery Implementation Program, U.S. Fish and Wildlife Service, Albuquerque, New Mexico.
 

 Oak Ridge National Laboratory. 1996. White Oak Creek Watershed: Melton Valley Area Remedial Investigation Report. Volume 3, appendix C. Oak Ridge National Laboratory, Tennessee. 285 pages.
 

 Romero, J. 1996. Senator Wash Reservoir penstock coating, original written March 18, 1996. U.S. Bureau of Reclamation, Yuma, Arizona. 3 pages.
 

 Rust Geotech, Inc. 1996. U.S. Department of Energy Grand Junction Projects Office site environmental report for calendar year 1995. Rust Geotech, Inc., Grand Junction, Colorado. 146 pages.
 

 Science Applications International Corporation. 1996. Report on the remedial investigation of Bear Creek Valley at the Oak Ridge Y-12 Plant, Oak Ridge, Tennessee. Volume 6: Appendix G -- Baseline ecological risk assessment report. Science Applications International Corporation, Oak Ridge, Tennessee. 872 pages.
 

 Snyder, D.E. 1996. Preserved larval and small-fish collections of the upper Colorado River basin: maintenance and cataloging of a valuable historical database. Final report, Project No. 20. Colorado State University Larval Fish Laboratory Recovery Program. 28 pages.
 

 The Sport Fishing and Boating Partnership Council. 1996. First annual evaluation report 1995 executive order for recreational fisheries (No. 12962). The Sport Fishing and Boating Partnership Council. 9 pages.
 

 Tyus, H. 1996. Aquatic ecosystem recovery plan for mainstream rivers of the Colorado River basin. University of Colorado, Boulder. 96 pages.
 

 Tyus, H.M. and J.F. Saunders, III. 1996. Multispecies recovery plan for four endangered fishes of the mainstream Colorado River. Draft plan. University of Colorado at Boulder, Center for Limnology. Pages I-x, 1-96 + appendices.
 

 Tyus, H.M. and J.F. Saunders, III. 1996. Nonnative fishes in the upper Colorado River basin and a strategic plan for their control. Final report. University of Colorado at Boulder, Center for Limnology. Pages I-viii, 1-84 + appedix.
 

 U.S. Bureau of Reclamation. 1996. Silt project, water operations study. Final appraisal report. U.S. Bureau of Reclamation. 53 pages.
 

 U.S. Bureau of Reclamation. 1996. Description and assessment of operations, maintenance, and sensitive species of the lower Colorado River. U.S. Bureau of Reclamation, Lower Colorado Region, Boulder City, Nevada.
 

 U.S. Department of Energy. 1996. Marys Lake 69/115-kV transmission line upgrade and substation expansion projects. U.S. Department of Energy, Western Area Power Administration, Loveland, Colorado and Platte River Power Authority, Fort Collins, Colorado. 212 pages.
 

 U.S. Department of Energy. 1996. Environmental assessment of facility operations at the U.S. Department of Energy Grand Junction Projects Office, Grand Junction, Colorado. U.S. Department of Energy, Grand Junction, Colorado. 102 pages.
 

 U.S. Department of Energy. 1996. Annual site environmental report for calendar year 1989. U.S. Department of Energy, Western Area Power Administration, Golden, Colorado. 48 pages.
 

 U.S. Fish and Wildlife Service. 1996. Report to Congress on the recovery program for threatened and endangered species. U.S. Fish and Wildlife Service. 26 pages.
 

 U.S. Fish and Wildlife Service. 1996. Report to Congress on the recovery program for threatened and endangered species. U.S. Fish and Wildlife Service. 26 pages.
 

 U.S. Fish and Wildlife Service. 1996. Endangered species permit applications. Federal Register 61(184):49477-49478.
 

 U.S. Fish and Wildlife Service. 1996. Notice of receipt of application for incidental take permit for surveying the species listed below within New Mexico. Federal Register 61(140):37760.
 

 U.S. Fish and Wildlife Service. 1996. Endangered and threatened species permit applications. Federal Register 61(249):68049-68050.
 

 U.S. Fish and Wildlife Service. 1996. Endangered and threatened species permit applications. Federal Register 61(206):55012-55013.
 

 U.S. Fish and Wildlife Service. 1996. Endangered and threatened species permit applications. Federal Register 61(219):58082-58083.
 

 U.S. Fish and Wildlife Service. 1996. Biological assessment - lower Colorado River. 
 

 U.S. Fish and Wildlife Service. 1996. Procedures for stocking nonnative fish species in the upper Colorado River basin. U.S. Fish and Wildlife Service, Denver, Colorado. 13 pages.
 

 Valdez, R.A. 1996. Synopsis of the razorback sucker in Grand Canyon. Paper presented at the Razorback Sucker Workshop, January 11–12, 1996, Laughlin, Nevada. Sponsored by U.S. Bureau of Reclamation, Glen Canyon Environmental Studies, Flagstaff, Arizona.
 

 Valdez, R.A. and B.R. Cowdell. 1996. Effect of Glen Canyon Dam beach/habitat-building flows on fish assemblages in Glen and Grand Canyons, Arizona. BIO/WEST, Inc., Logan, Utah.
 

 Vinson, M. 1996. Sampling strategy for assessing aquatic invertebrate communities associated with endangered fish populations in the upper Colorado River basin. Fisheries and Wildlife Department. 27 pages.
 

 Vrijenhoek, R.C. 1996. Conservation genetics of North America desert fishes. Pages 367-397 in J.C. Avise and J.L. Hamrick, eds. Conservation Genetics: Case Histories from Nature. Chapman & Hall, New York.
 

 Westwater Engineering. 1996. Technical memorandum: Endangered fish of the upper Colorado River, observations from 1970 through 1995: George T. Kidd. Appendix C. Camp Dresser and McKee, Inc.: Replacement of the Plateau River pipeline: biological assessment, Denver, Colorado.
 

 Wigington, R. and D. Pontius. 1996. Toward range-wide integration of recovery implementation programs for the endangered fishes of the Colorado River. Pages 43-75 in The Colorado River Workshop: Issues, Ideas, and Directions. Grand Canyon Trust, Flagstaff, Arizona.
 

 Wydoski, R.S. 1996. Augmentation plan for razorback sucker in the Middle Green River, 1996-1997. U.S. Fish and Wildlife Service. 12 pages.
 

 Wydoski, R.S. 1996. Annual propagation operation plan, 1996. U.S. Fish and Wildlife Service. 20 pages.
 

 Wydoski, R.S. and E.D. Wick. 1996. Ecological value of flooded bottomland habitats to endangered fishes in the upper Colorado River basin. Upper Colorado River Basin Recovery Program. 33 pages.
 

 Anderson, R. 1997. An evaluation of fish community structure and habitat potential for Colorado squawfish and razorback sucker in the unoccupied reach (Palisade to Rifle) of the Colorado River, 1993-1995. Colorado Division of Wildlife Aquatic Research Section, Fort Collins. 56 + pages.
 

 Andreasen, L. and B. Jensen. 1997. Dexter National Fish Hatchery and Technology Center Endangered Species Bulletin. U.S. Fish and Wildlife Service 22(3):16-18.
 

 Anonymous. 1997. Navajo Transmission Project. Final Environmental Impact Statement (FEIS) report number: DOE/EIS--0231-F. 238 pages.
 

 Barton, B.A. and W.P. Dwyer. 1997. Physiological stress effects of continuous- and pulsed-DC electroshock on juvenile bull trout. Journal of Fish Biology.
 

 Blazer, V.S., D.L. Fabacher, E.E. Little, M.S. Ewing and K.M. Kocan. 1997. Effects of ultraviolet-B radiation on fish: histologic comparison of a UVB-sensitive and a UVB-tolerant species. Journal of Aquatic Animal Health 9(2):132-143.
 

 Buhl, K.J. 1997. Relative sensitivity of three endangered fishes, Colorado squawfish, bonytail, and razorback sucker, to selected metal pollutants. Ecotoxicology and Environmental Safety 37(2):186-192.
 

 Burdick, B.D. 1997. Minimum flow recommendation for passage of Colorado squawfish and razorback sucker in the 2.3-mile reach of the Lower Gunnison River : Redlands Diversion Dam to the Colorado River confluence. Final report. U.S. Fish and Wildlife Service, Colorado River Fishery Project, Grand Junction.
 

 Burdick, B.D. and R.B. Bonar. 1997. Experimental stocking of adult razorback sucker in the upper Colorado and Gunnison Rivers. Final report. U.S. Fish and Wildlife Service, Colorado River Recovery Program, Grand Junction, Colorado.
 

 California Department of Fish and Game. 1997. California Department of Fish and Game electrofishing survey. California Department of Fish and Game.
 

 Chart, T.E., D.P. Svendson and L.D. Lentsch. 1997. Investigation of potential razorback sucker (Xyrauchen texanus) and Colorado squawfish (Ptychocheilus lucius) spawning in the lower Green River 1994 and 1995. Utah Division of Wildlife Resources, Moah. 19 pages.
 

 Crowl, T.A. and N.W. Bouwes. 1997. Modeling population dynamics of Colorado squawfish, razorback sucker, and humpback chub for management objective development. Utah State University, Aquatic Ecology. 62 pages.
 

 Dames and Moore, Inc. 1997. McCullough to Liberty fiber optics project. Dames and Moore, Los Angeles, California. 170 pages.
 

 Demlong, M. 1997. Desert fish. Endangered Species Update 14(5-6):17-18.
 

 Dexter National Fish Hatchery. 1997. Dexter NFH stocking trip record 97-07. Dexter National Fish Hatchery.
 

 Fabacher, D.L. and E.E. Little. 1997. Biogenic substance that appears to protect freshwater fish from UVB radiation occurs primarily in the outer layers of the skin. Photochemistry and Photobiology 65(Special issue):73S-74S.
 

 Haines, G.B., S.H. Severson and T. Modde. 1997. Evaluation of batch marking techniques for culturing the endangered razorback sucker and Colorado squawfish. Final report. U.S. Fish and Wildlife Service, Colorado River Fish Project, Denver, Colorado. 40 pages.
 

 Hamilton, S.J. and K.J. Buhl. 1997. Hazard assessment of inorganics, individually and in mixtures, to two endangered fish in the San Juan River, New Mexico. Environmental Toxicology and Water Quality 12:195-209.
 

 Hamilton, S.J. and K.J. Buhl. 1997. Hazard evaluation of inorganics, singly and in mixtures, to flannelmouth sucker Catostomus latipinnis in the San Juan River, New Mexico. Ecotoxicology and Environmental Safety 38(3):296-308.
 

 Hayes, C. and T. Foreman. 1997. Survey and analysis of the sport fishery on the lower Colorado River and associated backwaters. California Department of Fish and Game, Inland Fisheries Division. 48 pages.
 

 Holden, P.B., P.D.Abate, and J.B.Ruppert. 1997. Razorback sucker studies on Lake Mead, Nevada, 1996-1997. Annual report. BIO/WEST, Inc., Logan, Utah.
 

 Karp, C.A. and G. Mueller. 1997. Annual report of razorback sucker telemetry study in the lower San Juan River, Utah. U.S. Bureau of Reclamation, Denver, Colorado.
 

 Knowles, G.W., P.C. Marsh, G. Mueller and T. Wolters. 1997. Sonic telemetry of razorback suckers in Lake Mohave, Arizona-Nevada. Proceedings of the Desert Fishes Council 28:52-53.
 

 Lockheed Idaho Technologies Company. 1997. Hydropower research and development. Lockheed Idaho Technologies Co., Idaho Falls, Idaho. 171 pages.
 

 Marsh, P.C. 1997. Collection of razorback sucker larvae from Lake Mohave, Arizona and Nevada, during the period 10 February through 14 March 1997. U.S. Bureau of Reclamation, Boulder City, Nevada. 4 pages + appendix.
 

 Marsh, P.C. 1997. Razorback sucker monitoring in Lake Mohave, Arizona and Nevada, for the period 01 November 1995 to 31 December 1996. U.S. Bureau of Reclamation, Boulder City, Nevada. 14 + pages.
 

 Martinez, P.J. 1997. West slope warmwater fisheries. 
 

 Martinez, P.J. 1997. Development and application of procedures for stocking nonnative fish speacies in the upper Colorado River basin. Colorado Division of Wildlife, Grand Junction.
 

 McAda, C.W. 1997. Mechanical removal of northern pike from the Gunnison River 1995-1996. Final report, project number 58. U.S. Fish and Wildlife Service, Colorado River Fishery Project, Grand Junction.
 

 McIvor, D.E. 1997. Bibliography for seven Colorado River fishes. Smithfield, Utah.
 

 Minckley, W.L., J.E. Deacon, P.C. Marsh, W.J. Matthews and P.B. Moyle. 1997. Sustainability of western native fish resources. Pages 63-76 in W.L. Minckley, ed. Aquatic Ecosystems Symposium. A Report to the Western Water Policy Review Advisory Commission. Arizona State University, Tempe.
 

 Modde, T. 1997. Fish composition of the Duchesne River. Final report. Utah Fish and Wildlife Department, Uintah Ouray Ute Tribe, Fort Duchesne. 12 pages.
 

 Modde, T. 1997. Nursery suitability and razorback sucker use of a floodplain wetland in the middle Green River. Final report. U.S. Fish and Wildlife Service, Denver, Colorado. 70 pages.
 

 Modde, T. and E.J. Wick. 1997. Investigations of razorback sucker distribution, movements and habitats used during spring in the Green River, Utah. Final report. U.S. Fish and Wildlife Service, Denver, Colorado. 40 pages.
 

 Mueller, G. 1997. Restoration of the razorback sucker in the Colorado River, southwestern United States. Pages II-23 - 11-33. Proceedings of the World River Conference, Gifu, Japan.
 

 Muth, R.T. and E.J. Wick. 1997. Field studies on larval razorback sucker in Canyonlands National Park and Glen Canyon National Recreation Area, 1993 – 1995. Final report. U.S. Park Service Rocky Mountain Region, Denver, Colorado.
 

 Muth, R.T. and J.B. Ruppert. 1997. Effects of electrofishing fields on captive embryos and larvae of razorback sucker. North American Journal of Fisheries Management 17(1):160-166.
 

 No author. 1997. Biological and conference opinion on lower Colorado River operations and maintenance, Lake Mead to Southerly International Boundary. U.S. Fish and Wildlife Service, Albuquerque, New Mexico. 196 pages.
 

 No author. 1997. Coordination and biology committees 30 October 1997. San Juan River Basin Recovery Implementation Program, U.S. Fish and Wildlife Service, Albuquerque, New Mexico.
 

 No author. 1997. Coordination Committee 25 February 1997. San Juan River Basin Recovery Implementation Program, U.S. Fish and Wildlife Service, Albuquerque, New Mexico.
 

 Oak Ridge National Laboratory. 1997. Remedial investigation report on the Melton Valley watershed at Oak Ridge National Laboratory, Oak Ridge, Tennessee. Volume 3: Appendix C. Oak Ridge National Laboratory, Tennessee, CDM Federal Programs Corp., Oak Ridge, Tennessee and Science Applications International Corp., Oak Ridge, Tennessee. 577 pages.
 

 Pitts, T. and M.J. Cook. 1997. Propagation and stocking activities of the Recovery Implementation Program for the endangered Fishes of the Upper Colorado River Basin: summary, status, assessment. Hall, Pitts and Associated, Loveland, Colorado. 53 pages.
 

 Pontius, D. and I. Swca. 1997. Colorado River Basin study. SWCA, Inc., Tucson, Arizona. 132 + pages.
 

 Rakocinski, C.F., M.S. Peterson, S.J. Vanderkooy and G.J. Crego.  1997. Biodiversity patterns of littoral tidal river fishes in the Gulf coastal plain region of Mississippi Gulf of Mexico. Science (1):2-16.
 

 Rinne, J.N. and J.A. Stefferud. 1997. Factors contributing to collapse yet maintenance of a native fish community in the desert southwest (U.S.A). Proceedings of the World Fisheries Congress (2):157-162.
 

 Ryden, D.W. 1997. Five-year augmentation plan for razorback sucker in the San Juan River. Final report. U.S. Fish and Wildlife Service, Grand Junction, Colorado.
 

 Snyder, D.E. 1997. Effectiveness of light traps for capture and retention of larval and early juvenile Xyrauchen texanus and larval Ptychocheilus lucius and Gila elegans. Final report. Colorado State University Larval Fish Laboratory, Fort Collins.
 

 Snyder, D.E. 1997. Effects of the fish anesthetic tricaine on larval and early juvenile razorback sucker, Xyrauchen texanus. Final report. Colorado State University Larval Fish Laboratory, Fort Collins.
 

 Tiersch, T.R., W.R. Wayman, C.R. Figiel, Jr., O.T. Gorman, J.H. Williamson and G.J. Carmichael. 1997. Field collection, handling, and storage of sperm of the endangered razorback sucker. North American Journal of Fisheries Management 17(1):167-173.
 

 Tyus, H.M. 1997. Razorback sucker (Xyrauchen texanus) recovery plan. U.S. Fish and Wildlife Reference Service, Bethesda, Maryland. 76 pages.
 

 U.S. Bureau of Land Management. 1997. Environmental impact statement Lisbon Valley Copper Project. Final report. U.S. Bureau of Land Management, Moah, Utah. 578 pages.
 

 U.S. Bureau of Reclamation. 1997. Levee removal project of the floodplain habitat restoration program: an element of the recovery implementation program for endangered fish species in the upper Colorado River basin. Draft environmental assessment. U.S. Bureau of Reclamation, Upper Colorado Region, Provo, Utah.
 

 U.S. Department of Energy. 1997. Joint environmental assessment 1997--2001 of the California Department of Food and Agriculture Curly Top Virus Control Program for Bureau of Land Management and Department of Energy. U.S. Department of Energy, Naval Petroleum Reserves in California, Tupman, California. 323 pages.
 

 U.S. Department of the Interior. 1997. Biological and conference opinion on lower Colorado River operations and maintenance, Lake Mead to Southerly International Boundary. Final. U.S. Department of the Interior. 196 pages.
 

 U.S. Fish and Wildlife Service. 1997. Studies of the Colorado squawfish in the upper Colorado River. Final reports for the Recovery Implementation Program, project no. 14. U.S. Fish and Wildlife Service, Colorado River Fishery Project, Grand Junction.
 

 U.S. Fish and Wildlife Service. 1997. Biological and conference opinion of lower Colorado River operations and maintenance. 
 

 U.S. Fish and Wildlife Service. 1997. Availability of a draft recovery plan for the razorback sucker (Xyrauchen texanus) for review and comment. Federal Register 62(172):47040-47041.
 

 Vaselaar, R.T. 1997. Opening the flood gates: the 1996 Glen Canyon Dam experiment. Restoration and Management Notes 15(2):119-125.
 

 Watts, G., W. Noonan, H. Maddux and D.S. Brookshire. 1997. Endangered Species Act and critical habitat designation: an integrated biological and economic approach. Colorado State University Larval Fish Laboratory, Fort Collins, and Colorado Division of Wildlife Report. 41 pages.
 

 Wick, E.J.  1997. Physical processes and habitat critical to the endangered razorback sucker on the Green River, Utah. Doctoral dissertation, Colorado State University, Fort Collins. 142 pages.
 

 Zimmerman, B.H. 1997. Radio-telemetry study to monitor habitat use and movements of juvenile razorback suckers prior to the implementation of a reintroduction program in the Grand Canyon. Hualapai Indian Reservation, Mohave & Coconino Counties, Arizona. Contract report, agreem No source.
 

 Bradford, R.H., S.D. Gurtin and B.R. Vlach. 1998. Habitat use by razorback suckers implanted with ultra-sonic transmitters and released into the lower Imperial Division, Colorado River. Contract report no. 3, cooperative agreement 3-FC-34-08243. Arizona Game and Fish Department, Phoenix.
 

 Campbell, S. 1998. Ecology of western river reservoirs. http://biology.usgs.gov/cro/99bor-1.htm>
 

 Douglas, M.E. and P.C. Marsh. 1998. Population and survival estimates of Catostomus latipinnis in northern Grand Canyon, with distribution and abundance of hybrids with Xyrauchen texanus. Copeia 12(4):915-925.
 

 Federal Interagency Stream Restoration Working Group. 1998. Stream corridor restoration: principles, processes, and practices. Federal Interagency Stream Restoration Working Group. 631 pages.
 

 Flug, M. 1998. Ecosystem resource considerations in reservoir management: water resources update. Pages 43-56 in Universities Council on Water Resources, v. Summer 1997.
 

 Haines, G.B., S.H. Severson and T. Modde. 1998. Evaluation of razorback sucker and Colorado squawfish batch marking techniques. Progressive Fish Culturist 60(4):272-275.
 

 Hamilton, S. and S. Finger. 1998. Effects of siltation and salinization of the San Juan River on the survival and recovery of the Colorado squawfish and razorback sucker. 
 

 Hamilton, S.J. 1998. Selenium effects on endangered fish in the Colorado River basin. Pages 297-313 in W.T. Frankenberger and R.A. Engberg, eds. Environmental Chemistry of Selenium. Marcel Dekker, New York, New York.
 

 Hamilton, S.J., R.T. Muth, B. Waddell and T.W. May. 1998. Selenium and other trace elements in wild larval razorback suckers from the Green River, Utah. U.S. Geological Survey, Yankton, SD. Final report to the National Irrigation Water Quality Program. Denver, Colorado. 40 pages.
 

 Jones, S.B., L.B. King, L.C. Sappington, F.J. Dwyer, M. Ellersieck and D.R. Buckler. 1998. Effects of carbaryl, permethrin, 4-nonylphenol, and copper on muscarinic cholinergic receptors in brain of surrogate and listed fish species. Comparative Biochemistry and Physiology, Pharmacology, Toxicology and Endocrinology 120C(3):405-414.
 

 Lemly, A.D. 1998. Position paper on selenium in ecotoxicology: a procedure for deriving site-specific water quality criteria. Ecotoxicology and Environmental Safety 39(1):1-9.
 

 Lentsch, L.D., C.A. Toline, T.A. Crowl and Y. Converse. 1998. Endangered fish interim management objectives for the upper Colorado River basin recovery and implementation program. Final report. Utah Division of Wildlife Resources, Salt Lake City. 40 pages.
 

 Mac, M. J., P.A. Opler, C.E.P. Haecker and P.D. Doran, eds. 1998. Status and trends of the nation's biological resources - southwest. U.S. Geological Survey, Biological Resources Division. 986 pages.
 

 Marsh, P.C. and C.A. Pacey. 1998. Growth of wild adult razorback suckers in Lake Mohave, Arizona and Nevada. Final report. U.S. Bureau of Reclamation, Boulder City, Nevada. 25 pages + appendices.
 

 Modde, R.T., G.B. Haines, S.M. Meismer, E.J. Wick, T.E.Chart, D.E. Snyder and J.M. Bundy. 1998. Reproduction and early life history of razorback sucker in the Green River, Utah and Colorado. Final report. U.S. Fish and Wildlife Service, Denver, Colorado.
 

 Modde, T. 1998. Fish use of Old Charley Wash: an assessment of floodplain wetland importance to razorback sucker management and recovery. Draft final report. U.S. Fish and Wildlife Service. 63 pages.
 

 Modde, T. and D.B. Irving. 1998. Use of multiple spawning sites and seasonal movement by razorback suckers in the Middle Green River, Utah. North American Journal of Fisheries Management 18(2):318-326.
 

 Montagne, M. 1998. Grand Valley propagation facilities. 1997 Annual report. U.S. Fish and Wildlife Service, Colorado River Fish Recovery Program, Grand Junction. 21 pages.
 

 Mueller, G. and E. Wick. 1998. Testing of golf course ponds at Page, Arizona for suitability as grow-out facility for razorback sucker using surplus fish from Ouray National Fish Hatchery. National Park Service, U.S. Fish and Wildlife Service and Utah Division of Wildlife Resources. 28 pages.
 

 Mueller, G. and P. Marsh. 1998. Post-stocking dispersal, habitat use, and behavioral acclimation of juvenile razorback suckers (Xyrauchen texanus) in two Colorado River reservoirs. U.S. Geological Survey, Denver Colorado. 24 pages.
 

 Muth, R.T., G.B. Haines, S.M. Meismer, E.J. Wick, T.E. Chart, D.E. Chart, D.E. Snyder and J.M. Bundy. 1998. Reproduction and early life history of razorback sucker in the Green River, Utah and Colorado, 1992-1996. Colorado River Recovery Implementation Program. 62 pages.
 

 No author. 1998. Intermodal transportation of low-level radioactive waste to the Nevada test site. U.S. Department of Energy, Nevada Operations Office, Las Vegas, Nevada (United States). Report number: DOE/LLW--99001331. 250 pages.
 

 No author. 1998. Coordination Committee December 15, 1998. San Juan River Basin Recovery Implementation Program, U.S. Fish and Wildlife Service, Albuquerque, New Mexico.
 

 No author. 1998. Environmental assessment for a refinement of the power delivery component of the Southern Nevada Water Authority Treatment and Transmission Facility. Report number: EIS-Nevada--99001918. Final. U.S. Bureau of Reclamation, Lower Colorado Regional Office, Boulder City, Nevada, Southern Nevada Water Authority, Colorado River Commission and Nevada Power Company.
 

 No author. 1998. Coordination Committee February 25,1998. San Juan River Basin Recovery Implementation Program, U.S. Fish and Wildlife Service, Albuquerque, New Mexico.
 

 Pacey, C.A. and P.C. Marsh. 1998. Resource use by native and nonnative fishes of the lower Colorado River: literature review, summary, and assessment of relative roles of biotic and abiotic factors in management of an imperiled indigenous ichthyofauna. Final report. U.S. Bureau of Reclamation, Boulder City, Nevada. 1086 pages.
 

 Poff, N.L. and J.D. Allan. 1998. Not a panacea, reply. Bioscience 48:427-428.
 

 Robinson, A.T., P.P. Hines, J.A. Sorensen and S.D. Bryan. 1998. Parasites and fish health in a desert stream, and management implications for two endangered fishes. North American Journal of Fisheries Management 18(3):599-608.
 

 Salisbury, L. 1998. Factors affecting razorback sucker growth in Lake Mohave backwaters. Bachelor's thesis, University of Nevada, Las Vegas.
 

 Saunders, III, J.F. and H.M. Tyus. 1998. Not a panacea. Bioscience 48:427.
 

 Schmitt, C.J. 1998. Environmental contaminants. Pages 131-165 in M.J. Mac, P.A. Opler, C.E. Puckett Haecker and P.D Doran, eds. Status and Trends of the Nation's Biological Resources. U.S. Department of the Interior, U.S. Geological Survey, Reston, Virginia.
 

 Tiersch, T.R., C.R. Figiel, Jr., W.R. Wayman, J.H. Williamson, G.J. Carmichael and O.T. Gorman. 1998. Cryopreservation of sperm of the endangered razorback sucker. Transactions of the American Fisheries Society 127(1):95-104.
 

 Tyus, H.M. 1998. Razorback sucker (Xyrauchen texanus) recovery plan. University of Colorado, Center for Limnology, Boulder. 76 pages.
 

 Tyus, H.M. and J.F. Saunders, III. 1998. An evaluation of recovery needs for endangered fishes in the upper Colorado River, with recommendations for future recovery actions. Final report (Contract 1196-12-1591B). University of Colorado at Boulder, Center for Limnology, Cooperative Institute for Research in Environmental Sciences. 89 pages.
 

 U.S. Bureau of Reclamation. 1998. Measure biological and conference opinion on lower Colorado River operations and maintenance. 
 

 U.S. Bureau of Reclamation. 1998. RPA/RPM - Implementation (Review of status - 1/98). 
 

 U.S. Bureau of Reclamation. 1998. Implementation of reasonable and prudent alternative and measure biological and conference opinion on lower Colorado River operations and maintenance, 1998 annual report. 
 

 U.S. Department of Energy. 1998. Questar Pipeline Company; notice of application. Federal Register 63(114):32652.
 

 U.S. Department of the Interior. 1998. Management and control of nonnative fish species in floodplain ponds along the upper Colorado and Gunnison Rivers, Denver, Colorado. Finding of no significant impact. U.S. Fish and Wildlife Service. 75 pages.
 

 U.S. Department of the Interior. 1998. Environmental assessment for acquisition and enhancement of floodplain habitats along the Colorado, Green and Gunnison Rivers as part of the Recovery Program for Endangered Colorado River Fishes. Final. U.S. Bureau of Reclamation, Salt Lake City and U.S. Fish and Wildlife Service, Denver, Colorado.
 

 U.S. Environmental Protection Agency. 1998. Report on the peer consultation workshop on selenium aquatic toxicity and bioaccumulation. U.S. Environmental Protection Agency, Office of Water, Washington, D.C. 286 pages.
 

 U.S. Environmental Protection Agency. 1998. Climate change and Arizona. EPA 236-F_98-0007C. U.S. Environmental Protection Agency. 4 pages.
 

 U.S. Environmental Protection Agency. 1998. Climate change and Arizona. EPA 236-F_98-0007C. U.S. Environmental Protection Agency. 4 pages.
 

 U.S. Environmental Protection Agency. 1998. Modification of the National Pollutant Discharge Elimination System (NPDES) storm water multi-sector general permit for industrial activities termination of the EPA NPDES storm water baseline industrial general permit notice. Final. Federal Register 63(189):52430-52577.
 

 U.S. Environmental Protection Agency. 1998. Reissuance of NPDES general permits for storm water discharge from construction activities; notice (addenda). Federal Register 63(31):7957-8014.
 

 U.S. Fish and Wildlife Service. 1998. Endangered and threatened species permit applications. Federal Register 63(77):19933-19936.
 

 U.S. Fish and Wildlife Service. 1998. Availability of draft management objectives for the endangered fishes of the upper Colorado River for review and comment. Federal Register 63(86):24821.
 

 U.S. Fish and Wildlife Service. 1998. Endangered species permit applications. Federal Register 63(158):43952-43953.
 

 U.S. Fish and Wildlife Service. 1998. Razorback sucker Xyrauchen texanus recovery plan. U.S. Fish and Wildlife Service, Region 6, Denver, Colorado. 77 pages.
 

 U.S. Fish and Wildlife Service. 1998. Service trains tribes in enforcement. 
 

 U.S. Forest Service. 1998. Amendment of land and resource management plans in the southwestern region. Federal Register 63(104):29692-29695.
 

 Wayman, W.R. and T.R. Tiersch. 1998. On site cryopreservation with nitrogen vapor shipping dewars. Page 574 in Aquaculture 1998 Book of Abstracts.
 

 Williams, J.D. and G.K. Meffe. 1998. Nonindigenous species. Pages 117-129 in M.J. Mac, P.A. Opler, C.E. Puckett Haecker and P.D. Doran, eds. Status and Trends of the Nation's Biological Resources. U.S. Department of the Interior, U.S. Geological Survey, Reston, Virginia.
 

 Barbour, M.T., J. Gerritsen, B.D. Snyder and J.B. Stribling. 1999. Rapid bioassessment protocols for use in wadeable streams and rivers. Periphyton, benthic macroinvertebrates, and fish. Second edition. U.S. Environmental Protection Agency, Office of Water, Washington, D.C. 344 pages.
 

 Berrens, R.P., M. McKee and M.C. Farmer. 1999. Incorporating distributional considerations in the safe minimum standard approach: endangered species and local impacts . Ecological Economics (30)3:461-474.
 

 Beyers, D.W. and C. Sodergren. 1999. Assessment and prediction of effects fo selenium exposure to larval razorback sucker. Colorado State University Larval Fish Laboratory, Fort Collins. 31 pages.
 

 Carpenter, M.C., J.L. Lockett, E.J. Wick, G.R. Smith, B.J. Cluer and N.F. Blomgren. 1999. Monitoring sand deposition and erosion on spawning beds used by razorback suckers on the Green River downstream from Flaming Gorge Dam using an array of load-cell scour sensors. In American Geophysical Union, 1999 Fall Meeting, San Francisco, California, December 13-17, 1999, Supplement to Eos Transactions, v. 80, no. 46, November 16, 1999, p. F448.
 

 Chart, T.E., D.P. Svendson and L.D. Lentsch. 1999. Investigation of potential razorback sucker (Xyrauchen texanus) and Colorado squawfish (Ptychocheilus lucius) spawning in the lower Green River, 1994 and 1995. Final report. Project number 38. Report number 99-32. Utah Division of Wildlife Resources, Salt Lake City. 26 pages.
 

 Clarkson, R.W. 1999. U.S. Bureau of Reclamation's role in native fish recovery in the Gila River Basin. Arizona Riparian Council 12(2):1, 3-4.
 

 Czapla, T.E. 1999. Genetics management plan (revised). Denver, Colorado. 48 pages.
 

 Day, K. and T. Modde. 1999. Distribution and recapture of razorback suckers stocked in the Green River in 1995. Final report. U.S. Fish and Wildlife Service, Denver, Colorado. 20 pages.
 

 Demlong, M. 1999. Beyond captive propagation. Endangered Species Bulletin 24(3):22-24.
 

 Desert Fishes Council. 1999. Proceedings of the Desert Fishes Council Volume XXIX Annual Symposium. Desert Fishes Council, Bishop, California. 78 pages.
 

 Desert Fishes Council. 1999. Proceedings of the Desert Fishes Council Volume XXX Annual Symposium. Desert Fishes Council, Bishop, California. 71 pages.
 

 Dowling, T.E., P.C. Marsh, C.A. Tibbets and C.A. Secor. 1999. Success in conservation: molecular evidence from razorback sucker. Proceedings of the Desert Fishes Council 30:4-5.
 

 Dwyer, F.J., D.K. Hardesty, C.E. Henke, C.G. Ingersol, D.W. Whites, D.R. Mount and C.M. Bridges. 1999. Assessing contaminant sensitivity of endangered and threatened species: effluent toxicity tests. U.S. Geological Survey, Biological Resources Division, Columbia, Missouri. 26 pages.
 

 Dwyer, F.J., D.K. Hardesty, C.E. Henke, C.G. Ingersol, D.W. Whites, D.R. Mount and C.M. Bridges. 1999. Assessing contaminant sensitivity of endangered and threatened species: toxicant classes. U.S. Geological Survey, Biological Resources Division, Columbia, Missouri. 18 pages.
 

 Fairchild, J.F., A.L. Allert, J. Mizzi, R. Reisenburg and B. Waddell. 1999. Determination of a safe level of ammonia that is protective of juvenile Colorado pikeminnow in the upper Colorado River, Utah. 1998 Quick Response Program, final report. 
 

 Foster, D.K. and G.A. Mueller. 1999. Movement patterns, behavior, and habitat use of razorback sucker stocked into the Green River at Canyonlands National Park, Utah. Open-file report 99-107. U.S. Geological Survey, Fort Collins, Colorado.
 

 Fuller, P.L., L.G. Nico and J.D. Williams. 1999. Nonindigenous fishes introduced into inland waters of the United States. Special Publication 27. American Fisheries Society, Bethesda, Maryland. 613 pages.
 

 Hamilton, S.J. 1999. Hypothesis of historical effects from selenium on endangered fish in the Colorado River basin. Pages 513-516 in Proceedings of the American Water Resources Conference, Watershed Management to Protect Declining Species, Seattle, WA. December 5-9, 1999.
 

 Hoetker, G.M. and K.W. Gobalet.  1999. Fossil razorback sucker (Pisces: Catostomidae, Xyrauchen texanus) from southeastern California. Copeia (Gainesville) 3:755-759.
 

 Holden, P.B. 1999. Flow recommendations for the San Juan River. San Juan River Basin Recovery Implementation Program, U.S. Fish and Wildlife Service, Albuquerque, New Mexico.
 

 Holden, P.B., P.D. Abate and J.B. Ruppert. 1999. Razorback sucker studies on Lake Mead, Nevada, 1997-1998. Annual report. BIO/WEST, Inc., Logan, Utah.
 

 Hudson, J.M., L.D. Lentsch, K.W. Wilson and K.D. Christopherson. 1999. State of Utah stocking plan for endangered fish species of the upper Colorado River basin. Final report. Utah Division of Wildlife Resources, Salt Lake City.
 

 Johnson, J.E. and R.T. Hines. 1999. Effect of suspended sediment on vulnerability of young razorback suckers to predation. Transactions of the American Fisheries Society 128(4):648-655.
 

 Kelly, J.P. 1999. An ichthyological survey of the Davy Crockett National Forest, Texas. Texas Journal of Science (College Station) 51(2):115-126.
 

 Kohler, C. and W. Hubert, eds. 1999. Inland Fisheries Management in North America. American Fisheries Society, Bethesda, Maryland. 718 pages.
 

 Landye, J., B. McCasland, C. Hart, K. Hayden and J.C. Thoesen. 1999. San Juan River fish health surveys (1992-1999). San Juan River Basin Recovery Implementation Program, U.S. Fish and Wildlife Service, Albuquerque, New Mexico. 11 pages.
 

 Lemly, A.D. 1999. Selenium transport and bioaccumulation in aquatic ecosystems: a proposal for water quality criteria based on hydrological units. Ecotoxicology and Environmental Safety 42(2):150-156.
 

 Marsh, P.C.  1999. Movements of sub-adult razorback sucker in a Colorado River reservoir. Interim progress report for cooperative agreement no. 1445-0009-94-1108, subagreement 6, with Arizona State University, Tempe, Arizona. Arizona State University, Tempe.
 

 Marsh, P.C. 1999. Survival of repatriated bonytail, Gila elegans, and razorback sucker, Xyrauchen texanus, in Lake Mohave, Arizona and Nevada. Proceedings of the Desert Fishes Council 29:34.
 

 Marsh, P.C. and B.R. Kesner. 1999. Movements of sub-adult razorback sucker in a Colorado River reservoir. Report Part 2, cooperative agreement 1445-0009-94-1108. U.S. Geological Survey, Denver, Colorado. 16 pages.
 

 Marsh, P.C. and B.R. Kesner. 1999. Movements of sub-adult razorback sucker in a regulated Colorado River reach. Report Part 1, cooperative agreement 1445-0009-94-1108. U.S. Geological Survey, Denver, Colorado. 18 pages.
 

 Marsh, P.C., C.A. Pacey and W.L. Minckley. 1999. Resource use attributes of Colorado River fishes and implication for management of native and non-native species. Proceedings of the Desert Fishes Council 30:24.
 

 Minckley, C.O. and M. LaBarbara. 1999. Report on native fish grow-out facilities at Cibola and Imperial National Wildlife Refuges 1993-1995. U.S. Fish and Wildlife Service, Parker Fishery Resources Office, Parker, Arizona.
 

 Mueller, G. and D.K. Foster. 1999. Case for site acclimation in the reintroduction of the endangered razorback sucker (Xyrauchen texanus). U.S. Departement of the Interior, U.S. Geological Survey, Denver, Colorado, and Northern Arizona State University, Flagstaff.
 

 No author. 1999. San Juan River Basin Recovery Implementation Program Biology Committee February 17, 1999 meeting summary. San Juan River Basin Recovery Implementation Program, U.S. Fish and Wildlife Service, Albuquerque, New Mexico.
 

 No author. 1999. San Juan River Basin Recovery Implementation Program Biology Committee March 8-9, 1999 meeting summary. San Juan River Basin Recovery Implementation Program, U.S. Fish and Wildlife Service, Albuquerque, New Mexico.
 

 No author. 1999. San Juan River Basin Recovery Implementation Program Biology Committee November 9-10, 1999 meeting summary. San Juan River Basin Recovery Implementation Program, U.S. Fish and Wildlife Service, Albuquerque, New Mexico.
 

 No author. 1999. Southpoint Power Plant final environmental impact statement. U.S. Department of the Interior Bureau of Indian Affairs, Phoenix, Arizona, U.S. Departmen of Energy, Western Area Power Administration, Phoenix, Arizona, Fort Mojave Indian Tribe, Needles, California and Hallock/Gross, Inc., Tempe, Arizona.
 

 Nuclear Regulatory Commission. 1999. Atlas corporation receipt of petition for director's decision under 10 CFR 2.206. Federal Register 64(29):7217-7218.
 

 Ogden Environmental and Energy Services Company, Inc. 1999. Lower Colorado River Multi-Species Conservation program. Draft conservation strategy for the Lower Colorado River MSCP. Ogden Environmental and Energy Services Company, Inc., San Diego, California.
 

 Pacey, C.A. and P.C. Marsh. 1999. Growth of wild adult razorback suckers in Lake Mohave, Arizona-Nevada. Proceedings of the Desert Fishes Council 30:31-32.
 

 Pitlick, J., M. Van Steeter, R. Cress, B. Barkett and M. Franseen. 1999. Geomorphology and hydrology of the Colorado and Gunnison Rivers and implications for habitats used by endangered fishes. U.S. Fish and Wildlife Service, Recovery Implementation Program, Grand Junction, Colorado. 64 pages.
 

 Rinne, J.N. and J.A. Stefferud. 1999. Single versus multiple species management: native fishes in Arizona. Forest Ecology and Management 114(2-3):357-365.
 

 Ruppert, J.B., P.B. Holden and P.D. Abate. 1999. Age estimation and growth of razorback sucker, Xyrauchen texanus, in Lake Mead, Nevada. Proceedings of the Desert Fishes Council 30:40–41.
 

 Ryden, D.W. 1999. Chapter 3: life history of the fishes of the San Juan River. Razorback sucker. Pages 3-13 to 3-19 in in P.B. Holden, ed. Flow recommendations for the San Juan River. San Juan River Basin Recovery Implementation Program, U.S. Fish and Wildlife Service, Albuquerque, New Mexico.
 

 San Juan Recovery Program Biology Committee. 1999. San Juan River Basin Recovery Implementation Program annual budget and work plan fiscal year 1999. San Juan River Basin Recovery Implementation Program, U.S. Fish and Wildlife Service, Albuquerque, New Mexico. 104 pages.
 

 Simpson, Z.R. and J.D. Lusk. 1999. Environmental contaminants in aquatic plants, invertebrates, and fishes of the San Juan River mainstem, 1990-1996. U.S. Fish and Wildlife Service, New Mexico Ecological Services Field Office, Environmental Contaminants Program, Albuquerque, New Mexico. 71 pages + appendices.
 

 Tao, S., T. Liang, J. Cao, R.W. Dawson and C. Liu. 1999. Synergistic effect of copper and lead uptake by fish. Ecotoxicology and Environmental Safety 44(2):190-195.
 

 Tyus, H.M., W.C. Starnes, C.A. Karp and J.F. Saunders, III.  1999. Effects of invasive tissue collection on rainbow trout, razorback sucker, and bonytail chub. North American Journal of Fisheries Management (Bethesda) 19(3):848-855.
 

 U.S. Bureau of Reclamation. 1999. Glen Canyon Dam modification to control downstream temperatures plan and draft environmental assessment. 
 

 U.S. Bureau of Reclamation. 1999. Implementation of reasonable and prudent alternative and measure biological and conference opinion on lower Colorado River operations and maintenance, 1999 annual report. 
 

 U.S. Bureau of Reclamation. 1999. Notice of intent to prepare a draft environmental impact statement on the operations of the Navajo Unit, Colorado River storage project, New Mexico and Colorado and announcement of public scoping meetings. Federal Register 64(190):53407-53408.
 

 U.S. Bureau of Reclamation. 1999. Offstream storage of Colorado River water; development and release of intentionally created unused apportionment in the lower division states; final rule. Federal Register 64(210):58985-59009.
 

 U.S. Bureau of Reclamation. 1999. Multi-Species Conservation Program (MSCP) for the lower Colorado River, Arizona, Nevada, and California. Federal Register 64(95):27000-27002.
 

 U.S. Department of Agriculture. 1999. Regional Forester’s Sensitive Species List. U.S. Department of Agriculture Forest Service Region 3.
 

 U.S. Environmental Protection Agency. 1999. EPA Office of Compliance sector notebook project: profile of local government operations. U.S. Environmental Protection Agency, Office of Enforcement and Compliance Assurance, Office of Compliance, Washington, D.C. 324 pages.
 

 U.S. Fish and Wildlife Service. 1999. Endangered species permit applications. Federal Register 64(5):1209-1210.
 

 U.S. Fish and Wildlife Service. 1999. Endangered and threatened species permit applications. Federal Register 64(43):10714-10716.
 

 U.S. Fish and Wildlife Service. 1999. Endangered species permit applications. Federal Register 64(118):33112-33114.
 

 U.S. Fish and Wildlife Service. 1999. Southwestern tribes preserve tradition by preserving nature. 
 

 U.S. Forest Service. 1999. Amendment of land and resource management plans in the southwestern region. Federal Register 64(187):52274.
 

 Upper Colorado River Basin Recovery Implementation Program. 1999. Razorback sucker distribution information, 1999. 
 

 Upper Colorado River Basin Recovery Implementation Program. 1999. Annual facilities operation plan, 19 February, 1999. Final. Upper Colorado River Basin Recovery Implementation Program. 6 pages.
 

 Upper Colorado River Basin Recovery Implementation Program. 1999. Programmatic biological opinion for Bureau of Reclamation's operations and depletions, other depletions, and funding and implementation of recovery program actions in the upper Colorado River above the confluence with the Gunnison River. Final. 
 

 Upper Colorado River Basin Recovery Implementation Program. 1999. Memorandum: 15-Mile Reach biological opinion. Final programmatic biological opinion for Bureau of Reclamation’s operations and depletions, other depletions, and funding and implementation of recovery program actions in the upper Colorado River above the G 
 

 Upper Colorado River Basin Recovery Implementation Program. 1999. Endangered fish population status assessment. 15-Mile Reach biological opinion. Appendix D. 
 

 Valdez, R.A. and R.J. Ryel. 1999. Developing recovery goals for the four endangered Colorado River fishes: scope of work and cost estimate. SWCA, Inc., Flagstaff, Arizona and Logan, Utah, and Rydel and Associates. 14 pages.
 

 Valdez, R.A. and W.C. Leibfried. 1999. Captures of striped bass in the Colorado River in Grand Canyon, Arizona. Southwestern Naturalist 44(3):388-392.
 

 Webb, R.H., J.C. Schmidt, G.R. Marzolf and R.A. Valdez, eds. 1999. Controlled Flood Grand Canyon. American Geophysical Union, Washington, D.C. 367 pages + maps.
 

 Wirtz, P. 1999. Mother species–father species: unidirectional hybridization in animals with female choice. Animal Behaviour 58(1):1-12.
 

 Abarca, F.J. and L.J. Allison. 2000. Issues in defining, detecting, and quantifying rare species. U.S. Bureau of Reclamation, Phoenix, Arizona and Nongame and Endangered Wildlife Program, Arizona Game and Fish Department, Phoenix, Arizona. 25 pages.
 

 Allert, A.A., K.R. Echols, S.E. Finger, R.W. Gale, E.E. Little and T.W. May. 2000. Effects of environmental perturbations on the aquatic community in the San Juan River. U.S. Bureau of Land Management, Farmington, New Mexico.
 

 Allison, L.J. 2000. Power analysis for long-term monitoring of fishes in selected waters of the Gila River basin, Arizona. U.S. Bureau of Reclamation, Phoenix, Arizona and Nongame and Endangered Wildlife Program, Arizona Game and Fish Department, Phoenix, Arizona. 53 pages.
 

 Archer, E. T.A. Crowl and M. Trammell. 2000. Abundance of age-0 native fish species and nursery habitat quality and availability in the San Juan River, New Mexico, Colorado and Utah. San Juan River Basin Recovery Implementation Program, U.S. Fish and Wildlife Service, Albuquerque, New Mexico. 167 pages.
 

 Bestgen, K.R. and L.W. Crist. 2000. Response of the Green River fish community to construction and re-regulation of Flaming Gorge Dam, 1962–1996. Final Report of Colorado State University Larval Fish Laboratory to Upper Colorado River Endangered Fish Recovery Program. Upper Colorado River Endangered Fish Recovery Program. 74 pages.
 

 Bliesner, R. and V. Lamarra. 2000. Hydrology, geomorphology and habitat studies. Final report. San Juan River Basin Recovery Implementation Program, U.S Fish and Wildlife Service, Albuquerque, New Mexico.
 

 Bradford, R.H and S.D. Gurtin. 2000. Habitat use by the hatchery reared adult razorback suckers released into the lower Colorado River, California Arizona. North American Journal of Fisheries Management 20(1):154-167.
 

 Bradford, R.H. and S.D. Gurtin. 2000. Habitat use by hatchery-reared adult razorback suckers released into the lower Colorado River, California-Arizona. North American Journal of Fisheries Management 20(1):154-167.
 

 Brandenburg, W.H. 2000. Razorback sucker larval fish survey: San Juan River 1998 and 1999. River 1998 and 1999. River 1998 and 1999. Division of Fishes, Museum of Southwestern Biology, University of New Mexico, Albuquerque. 46 pages.
 

 Brooks, J.E., M.J. Buntjer and J.R. Smith. 2000. Nonnative species interactions: management implications to aid in recovery of the Colorado pikeminnow Ptychocheilus lucius and razorback sucker Xyrauchen texanus in the San Juan River, Colorado-New Mexico-Utah. San Juan River Basin Recovery Implementation Program, U.S. Fish and Wildlife Service, Albuquerque, New Mexico.
 

 Brower, A., C. Reedy and J. Yelin-Kefer. 2000. Consensus and convervation in the upper Colorado River Basin Recovery Implementation Program. Conservation Biology 15(4):1001-1007.
 

 Buhl, K.J. and S.J. Hamilton. 2000. Chronic toxicity of dietary and waterborne selenium to adult Colorado pikeminnow (Ptychocheilus lucius) in a water quality simulating that in the San Juan River. Final report. U.S. Geological Survey, Columbia Environmental Research Center, Yankton Ecotoxicology Research Station, Yankton, South Dakota. 90 pages + appendices.
 

 Burdick, B.D. 2000. Overview of telemetry equipment and techniques used with native fishes in the upper Colorado River basin. Pages 173–185 in J.H. Eiler, D.J. Alcorn and M.R. Neuman, eds. Biotelemetry 15: Proceedings of the 15th International Symposium on Biotelemetry, Juneau, Alaska. International Society on Biotelemetry, Wageningen, The Netherlands.
 

 Burke, T. 2000. Risk assessment for entrainment into canals and passage through power plants of razorback and bonytail chub in lower Colorado River. 
 

 Carpenter, M.C., B.L. Cluer, G.R. Smith, E.J. Wick, J.L. Lockett, Jr. and S.J. Brockner. 2000. Monitoring sand deposition and erosion on spawning beds used by razorback suckers on the Green River downstream from Flaming Gorge Dam using an array of load-cell scour sensors. Pages 13-14 in Arizona Hydrological Society, Proceedings of the Thirteenth Annual Symposium, September 20-23, 2000, Phoenix, Arizona.
 

 Cavalli, P.A. 2000. An evaluation of the effects of Tusher Wash diversion dam on movement and survival of juvenile and subadult native fish. Publication number 01-1. Utah Division of Wildlife Resources, Salt Lake City. 33 pages.
 

 Clarkson, R.W. and M.R. Childs. 2000. Temperature effects of hypolimnial-release dams on early life stages of Colorado River basin big-river fishes. Copeia 2:402-412.
 

 Daerr, E.G.  2000. Fish running out of water. National Parks 74(5/6):50.
 

 Desert Fishes Council. 2000. Proceedings of the Desert Fishes Council Volume XXXI Annual Symposium. Desert Fishes Council, Bishop, California. 63 pages.
 

 Dexter National Fish Hatchery. 2000. Dexter NFH stocking trip record 00-03. Dexter National Fish Hatchery.
 

 Douglas, M.R. and M.E. Douglas.  2000. Late season reproduction by big-river catostomidae in Grand Canyon (Arizona). Copeia (Gainesville) 1:238-244.
 

 Gobalet, K.W. and T.A. Wake. 2000. Archaeological and paleontological fish remains from the Salton Basin, southern California. Southwestern Naturalist 45(4):514-520.
 

 Gorman, O.T. 2000. Ecological and genetic considerations for collection of gametes from wild fishes. Advances in World Aquaculture 7:319-322.
 

 Gosnell, H. 2000. Water, fish, tribes, and choice: the boundaries of agency discretion in the implementation of the Endangered Species Act. An analysis of the Section 7 consultation process for the Animas-La Plata Project, Colorado. 
 

 Gurtin, S.D. and R.H. Bradford. 2000. Race against time: saving the endangered razorback sucker. Arizona Wildlife Views 43:26-27.
 

 Gurtin, S.D. and R.H. Bradford. 2000. Use of habitat and associated habitat characteristics used by hatchery-reared adult razorback suckers implanted with ultra-sonic transmitters and released into the lower Imperial Division, Colorado River. Contract report no. 4, cooperative agreement 99-FG Arizona Game and Fish Department, Phoenix.
 

 Hamilton, S.J. 2000. Hypothesis of historical effects from selenium on endangered fish in the Colorado River basin. Human and Ecological Risk Assessment 5(6):1153-1180.
 

 Hamilton, S.J., K.J. Buhl, F.A. Bullard and E.E. Little. 2000. Chronic toxicity and hazard assessment of an inorganic mixture simulating irrigation drainwater to razorback sucker and bonytail. Environmental Toxicology 15(1):48-64.
 

 Hamilton, S.J., K.M. Holley, K.J. Buhl and F.A. Bullard.  2000. Effects of selenium on reproduction of endangered razorback sucker. Pages 509-512 in Proceedings of the American Water Resources Conference, Watershed Management to Protect Declining Species, Seattle, WA. December 5-9, 1999.
 

 Hamilton, S.J., K.M. Holley, K.J. Buhl, F.A. Bullard, L.K. Weston and S.F. McDonald. 2000. On-site evaluation of contaminant impacts on razorback sucker in flooded bottomland sites in the upper Colorado River basin -- 1996. Draft report to the Recovery Implementation Program for the Endangered Fishes of the Upper Colorado River Basin, U.S. Fish U.S. Geological Survey, Yankton, South Dakota. 351 pages.
 

 Hamilton, S.J., R. T. Muth, B. Waddell and T.W. May. 2000. Hazard assessment and other trace elements in wild larval razorback sucker from the Green River, Utah. Ecotoxicology and Environmental Safety 45(2):132-147.
 

 Hamilton, S.J., R.T. Muth, B. Waddell and T.W. May. 2000. Hazard assessment of selenium and other trace elements in wild larval razorback sucker from the Green River, Utah. Ecotoxicology and Environmental Safety 45:132-147.
 

 Hawkins, J.A. 2000. X-ray assessment of electrofishing injury of Colorado pikeminnow. Colorado State University, Fort Collins. 29 pages.
 

 Hayse, J. W., S.F. Daly, A. Tuthill, R.A. Valdez, R. A., B. Cowdell and G. Burton. 2000. Effect of daily fluctuations from Flaming Gorge Dam in ice processes in the Green River. Argonne National Laboratory, Illinois. 123 pages.
 

 Holden, P.B. 2000. Program evaluation report for the 7-year research period (1991-1997). San Juan River Basin Recovery Implementation Program, U.S. Fish and Wildlife Service, Albuquerque, New Mexico.
 

 Holden, P.B., P.D. Abate and J.B. Ruppert. 2000. Razorback sucker studies on Lake Mead, Nevada, 1998-1999. Annual report. BIO/WEST, Inc., Logan, Utah.
 

 Holden, P.B., P.D. Abate and J.B. Ruppert. 2000. Razorback sucker studies on Lake Mead, Nevada, 1999-2000. Annual report. BIO/WEST, Inc., Logan, Utah. 41 pages.
 

 Jahrke, E. and D.A. Clark. 2000. Razorback sucker and Colorado pikeminnow (formerly squawfish) reintroduction and monitoring in the Salt and Verde Rivers. Paper presented at the 33rd Joint Annual Meeting of the Arizona/New Mexico Chapter of the American Fisheries Society and Arizona and New Mexico Chapters of The Wildlife Society, February 3–5, 2000, Sierra Vista, Arizona.
 

 Korte, N.E. 2000. Selenium poisoning of wildlife and western agriculture: cause and effect. Oak Ridge National Laboratory, Environmental Sciences Division, Oak Ridge, Tennessee. 54 pages.
 

 Kubitschek, J.P. and M.R. Campbell. 2000. Price-Stubb Diversion Dam fish passage structure, Colorado River. 1:20 scale physical model study. U.S. Bureau of Reclamation, Water Resources Research Lab, Denver, Colorado. 42 pages.
 

 Lentsch, L.D., B.G. Hoskins and L.M. Lubomudrov. 2000. White River and endangered fish recovery: A hydrological, physical and biological synopsis. Final Report. Publication Number 00-37. Utah Division of Wildlife Resources, Salt Lake City. 56 pages.
 

 Lower Colorado River Multi-Species Conservation Program. 2000. Many titles - see website. 
 

 Marsh, P.C. 2000. Fish population status and evaluation in the Cibola High Levee Pond. Final report, agreement number 99-FG-30-00051. U.S. Bureau of Reclamation, Boulder City Nevada. 20 pages.
 

 Marsh, P.C. and B.R. Kesner. 2000. Movements of sub-adult razorback sucker in a regulated Colorado River reach, revisited. Report Part 3. Cooperative agreement 1445-0009-94-1108. U.S. Geological Survey, Denver, Colorado. 23 pages.
 

 Marsh, P.C. and B.R. Kesner. 2000. Movements of sub-adult razorback sucker in a regulated Colorado river reach, revisited. Final report. Cooperative agreement 1445-0009-94-1108. U.S. Geological Survey, Denver, Colorado. 18 pages.
 

 Marsh, P.C. and C.A. Pacey. 2000. Endangered razorback sucker rearing program database management, lower Colorado River repatriate razorback sucker pit-tagging database summary report 1992-1999. Final report, agreement number 99-FG-30-0067. U.S. Bureau of Reclamation, Boulder City, Nevada. 7 pages + paper and electronic appendices.
 

 Marsh, P.C. and G. Mueller. 2000. Spring-summer movements of bonytail in a Colorado River reservoir, Lake Mohave, Arizona and Nevada. Open file report 99-103. U.S. Geological Survey, Mid-Continent Ecological Science Center, Fort Collins, Colorado. 26 + pages.
 

 Miller, W.J. and D.E. Rees. 2000. Ichthyofaunal surveys of tributaries of the San Juan River, New Mexico. Final report. Miller Ecological Consultants, Inc., Fort Collins, Colorado. 28 pages + appendices.
 

 Miller, W.J. and J.A. Ptacek. 2000. Colorado pikeminnow habitat use in the San Juan River, New Mexico and Utah. Final report. San Juan River Basin Recovery Implementation Program, U.S. Fish and Wildlife Service, Albuquerque, New Mexico. 71 pages.
 

 Moyle, P.B. and L.H. Davis. 2000. List of freshwater, anadromous and euryhaline fishes of California. California Fish and Game 86(4):244-258.
 

 Mueller, G., P.C. Marsh, G. Knowles and T. Wolters. 2000. Distribution, movements, and habitat use of razorback sucker (Xyrauchen texanus) in a lower Colorado River reservoir, Arizona-Nevada. Western North American Naturalist (60)2:180-187.
 

 Muth, R.T., L.W. Crist, K.E. LaGory, J.W. Hayse, K.R. Bestgen, T.P. Ryan, J.K. Lyons and R.A. Valdez. 2000. Flow and temperature recommendations for the endangered fishes in the Green River downstream of Flaming Gorge Dam. Final report. 
 

 Nesler, T.P. 2000. Recovery of the Colorado River endangered fishes: biological recovery goals and criteria for Colorado pikeminnow, humpback chub, razorback sucker and bonytail. A proposal for downlisting and delisting. Colorado Division of Wildlife, Denver. 48 pages + tables.
 

 No author. 2000. Annual budget and work plan, fiscal year 2000. San Juan River Basin Recovery Implementation Program, U.S. Fish and Wildlife Service, Albuquerque, New Mexico.
 

 No author. 2000. San Juan River Basin Recovery Implementation Program coordination committee meeting, January 19, 2000. Final summary. San Juan River Basin Recovery Implementation Program, U.S. Fish and Wildlife Service, Albuquerque, New Mexico.
 

 No author. 2000. San Juan River Basin Recovery Implementation Program coordination committee meeting, June 14, 2000. Final summary. San Juan River Basin Recovery Implementation Program, U.S. Fish and Wildlife Service, Albuquerque, New Mexico.
 

 No author. 2000. San Juan River Basin Recovery Implementation Program Biology Committee meeting, Farmington, New Mexico, June 13-14, 2000 Final meeting summary. San Juan River Basin Recovery Implementation Program, U.S. Fish and Wildlife Service, Albuquerque, New Mexico.
 

 No author. 2000. San Juan River biology committee meeting Farmington, New Mexico 15-16 February 2000, approved - 11 April 2000. San Juan River Basin Recovery Implementation Program, U.S. Fish and Wildlife Service, Albuquerque, New Mexico.
 

 No author. 2000. San Juan River Recovery Implementation Program Biology Committee meeting Farmington, New Mexico 11-12 April 2000. San Juan River Basin Recovery Implementation Program, U.S. Fish and Wildlife Service, Albuquerque, New Mexico.
 

 No author. 2000. Upper Colorado River endangered fish recovery program and San Juan River basin recovery implementation program 2000. Washington, D.C. Briefing Book Upper Colorado River Endangered Fish Recovery Program Denver, Colorado. San Juan River Basin Recovery Implementation Program, U.S. Fish and Wildlife Service, Albuquerque, New Mexico.
 

 Osmundson, D.B. 2000. Importance of the "15-Mile Reach" to Colorado River population of endangered Colorado pikeminnow and razorback sucker. Final report. U.S. Fish and Wildlife Service, Grand Junction, Colorado. 20 pages.
 

 Pacey, C.A. and P.C. Marsh. 2000. Lower Colorado River native fishes pit tag database management summary report for the period October 1, 1997 through May 31, 1999. Final report, task agreement no. 5, cooperative agreement 1445-0009-94-1108. U.S. Geological Survey, Denver, Colorado. 20 + pages.
 

 Platania, S.P. and W.H. Brandenburg. 2000. San Juan River 1998 larval razorback sucker survey. Annual report. Museum of Southwestern Biology, University of New Mexico, Albuquerque.
 

 Platania, S.P. and W.H. Brandenburg. 2000. San Juan River 1999 larval razorback sucker survey. Annual report. Museum of Southwestern Biology, University of New Mexico, Albuquerque.
 

 Platania, S.P., R.K. Dudley and S.L. Maruca 2000. Drift of fishes in the San Juan River 1991-1997. Final report. San Juan River Basin Recovery Implementation Program, U.S. Fish and Wildlife Service, Albuquerque, New Mexico. 71 pages.
 

 Pringle, C.M., M.C. Freeman, MC and B.J. Freeman. 2000. Regional effects of hydrologic alterations on riverine macrobiota in the New World: tropical temperate comparisons. Bioscience 50(9):807-823.
 

 Propst, D.L. and A.L. Hobbes 2000. Seasonal abundance, distribution and population size structure of fishes in San Juan River secondary channels, 1991-1997. San Juan River Basin Recovery Implementation Program, U.S Fish and Wildlife Service, Albuquerque, New Mexico. 214 pages.
 

 Propst, D.L., S.P. Platania, D.W. Ryden and R.L. Bliesner. 2000. San Juan River monitoring plan and protocols 31 March 2000. San Juan River Basin Recovery Implementation Program, U.S. Fish and Wildlife Service, Albuquerque, New Mexico.
 

 Ryden, D.W. 2000. Long-term monitoring of sub-adult and adult large bodied fishes in the San Juan River, 1998 and 1999. Interim progress report (draft final). San Juan River Basin Recovery Implementation Program, U.S. Fish and Wildlife Service, Albuquerque, New Mexico. 47 pages.
 

 Ryden, D.W. 2000. Adult fish community monitoring on the San Juan River, 1991-1997. Final Report January 31, 2000. San Juan River Basin Recovery Implementation Program, U.S. Fish and Wildlife Service, Albuquerque, New Mexico. 298 pages.
 

 Ryden, D.W. 2000. Monitoring of experimentally stocked razorback sucker in the San Juan River: March 1994 through October 1997. Final report. San Juan River Basin Recovery Implementation Program, U.S. Fish and Wildlife Service, Albuquerque, New Mexico.
 

 Ryden, D.W. 2000. Monitoring of razorback sucker stocked into the San Juan River as part of a five-year augmentation effort: 1997-1999. Interim progress report (draft final). San Juan River Basin Recovery Implementation Program, U.S. Fish and Wildlife Service, Albuquerque, New Mexico. 49 pages.
 

 Secretaría de Desarrollo Social. 2000. Diario Oficial de la Federacion, PROY-NOM-059-ECOL-2000. Page 47. Secretaría de Desarrollo Social.
 

 Smith, J.R. and J.E. Brooks. 2000. Non-native species monitoring and control, San Juan River 1998-1999. Progress report. U.S. Fish and Wildlife Service, New Mexico Fishery Resources Office, Albuquerque. 23 pages.
 

 Speas, D.W. 2000. Zooplankton density and community composition following an experimental flood in the Colorado River, Grand Canyon, Arizona. Regulated Rivers: Research & Management 16(1):73-81.
 

 Springer, C. 2000. Rounding up razorbacks. Endangered Species Bulletin 25(5):18-19.
 

 SWCA, Inc. Environmental Consultants. 2000. Recovery goals for the four Colorado River endangered fish species. SWCA, Inc., Logan, Utah. 60 pages.
 

 Tiersch, T.R., C.R. Figiel, Jr., W.R. Wayman, J.H. Williamson, G.J. Carmichael and O.T. Gorman. 2000. Cryopreservation of sperm of the endangered razorback sucker. Pages 117-122 in T.R. Tiersch and P.M. Mazik, eds. Cryopreservation in aquatic species. World Aquaculture Society, Baton Rouge, Louisiana.
 

 Tyus, H.M. and J.F. Saunders, III. 2000. Nonnative fish control and endangered fish recovery: lessons from the Colorado River. Fisheries 25(9):848-855.
 

 Tyus, H.M., C.W. Brown and J.F. Saunders, III. 2000. Activity of young Colorado pikeminnow and razorback sucker in response to water movements. Environmental Biology of Fishes 15(4):525-535.
 

 Tyus, H.M., C.W. Brown and J.F. Saunders, III. 2000. Movements of young Colorado pikeminnow and razorback sucker in response to water flow and light level. Journal of Freshwater Ecology 15(4):525-535.
 

 U.S. Bureau of Reclamation. 2000. Implementation of reasonable and prudent alternative and measure biological and conference opinion on lower Colorado River operations and maintenance, 2000 annual report. 
 

 U.S. Bureau of Reclamation. 2000. Discretionary actions - RPA 13(b). 
 

 U.S. Bureau of Reclamation. 2000. Fish and Wildlife program analysis. 
 

 U.S. Bureau of Reclamation. 2000. Native Fish Protected Habitat Development Project - RPA 3. 
 

 U.S. Bureau of Reclamation. 2000. Environmental impact statement. Colorado River interim surplus criteria. Final. 
 

 U.S. Bureau of Reclamation. 2000. Environmental impact statement. Colorado River interim surplus criteria. Draft. 
 

 U.S. Department of Agriculture. 2000. Apache-Sitgreaves National Forest sensitive species list. U.S. Department of Agriculture.
 

 U.S. Department of Energy. 2000. Environmental assessment and finding of no significant impact: transfer of the Department of Energy Grand Junction Office to Non-DOE ownership. U.S. Department of Energy, Grand Junction, Colorado. 85 pages.
 

 U.S. Department of Energy. 2000. Environmental Assessment and Finding of No Significant Impact: Curecanti-Lost Canyon 230-kV Transmission Line Reroute Project, Montrose County, Colorado. U.S. Department of Energy, Western Area Power Administration. 146 pages.
 

 U.S. Fish and Wildlife Service. 2000. Endangered species permit applications. Federal Register 65(92):30426-30427.
 

 U.S. Fish and Wildlife Service. 2000. Multi-Species Conservation Program (MSCP) for the lower Colorado River, Arizona, Nevada, and California. Federal Register 65(134):43031-43034.
 

 U.S. Fish and Wildlife Service. 2000. Flaming Gorge Dam, Colorado River Storage Project, Utah. Federal Register 65(109):35957-35961.
 

 U.S. Fish and Wildlife Service. 2000. Endangered species recovery permits and applications. Federal Register 65(14):3471-3472.
 

 U.S. Fish and Wildlife Service. 2000. Endangered and threatened species permit applications. Federal Register 65(215):66552-66553.
 

 U.S. Fish and Wildlife Service. 2000. Endangered and threatened species permit applications. Federal Register 65(126):40120-40121.
 

 U.S. Fish and Wildlife Service. 2000. Endangered and threatened species permit applications. Federal Register 65(151):48010.
 

 U.S. Fish and Wildlife Service. 2000. Endangered and threatened species permit applications. Federal Register 65(182):56589-56590.
 

 U.S. Fish and Wildlife Service. 2000. Endangered and threatened species permit applications. Federal Register 65(91):30126-30127.
 

 U.S. Fish and Wildlife Service. 2000. Endangered and threatened species permit applications. Federal Register 65(62):16952-16953.
 

 U.S. Fish and Wildlife Service. 2000. Endangered and threatened wildlife and plants: final designation of critical habitat for the spikedace and the loach minnow; final rule. Federal Register 65(80):24327-24372.
 

 U.S. Fish and Wildlife Service. 2000. San Juan River Basin Recovery Implementation Program final annual budget and work plan, fiscal year 2001. U.S. Fish and Wildlife Service, Washington, D.C. 110 pages.
 

 U.S. Geological Survey. 2000. Water temperature data from the Green and Yampa Rivers. U.S. Geological Survey, Midcontinent Ecological Science Center, Fort Collins, Colorado.
 

 U.S. Geological Survey. 2000. Department of the Interior science priorities. 
 

 Upper Colorado River Basin Recovery Implementation Program. 2000. Fast facts. 
 

 Valdez, R.A. and R.J. Ryel. 2000. Summary of recovery goals for the four endangered fishes of the Colorado River basin. SWCA, Inc., Logan, Utah.
 

 Wesp, H.M. and A.C. Gibb. 2000. Escape response performance in the larval razorback sucker, Xyrauchen texanus. American Zoology 40(6):1255-1256.
 

 Wydoski, R.S and E.J. Wick. 2000. Flooding and aquatic ecosystems. Pages 238-268 in E.E. Wohl, ed. Inland Flood Hazards: Human, Riparian and Aquatic Communities. Cambridge University Press, Cambridge, Massachusetts.
 

 Aluko, P.O., J.I. Awopetu and A.O. Adeola. 2001. Genetic basis of pectoral fin deformities in the African catfish Clarias gariepinus (Burchell, 1822), Heterobranchus longifilis (Valenciennes 1840) and their hybrids. Aquaculture Research 32(1):21-27.
 

 Beyers, D.W. and C. Sodergren. 2001. Assessment of exposure of larval razorback sucker to selenium in natural waters and evalutaion of laboratory-based predictions. Colorado State University Larval Fish Laboratory, Fort Collins. 43 pages.
 

 Beyers, D.W. and C. Sodergren. 2001. Evaluation of interspecific sensitivity to selenium exposure: larval razorback sucker versus flannelmouth sucker. Colorado State University, Fort Collins. 50 pages.
 

 Bowen, Z.H., K.D. Bovee, T.J. Waddle, T. Modde and C. Kitcheyan. 2001. Habitat measurement and modeling in the Green and Yampa Rivers project report. Project report to natural resource preservation program December 2001. U.S. Geological Survey, Fort Collins, Colorado. 181 pages.
 

 Brandenburg, W.H., M.A. Farrington, and S.J. Gottlieb. 2001. Razorback sucker larval fish survey: San Juan River 2000. River 1998 and 1999. River 1998 and 1999. Division of Fishes, Museum of Southwestern Biology, University of New Mexico, Albuquerque. 34 pages.
 

 Brewer, D.T., S.J.M. Blabera, G. Frya, G.S. Mertab and D. Efizon. 2001. Sawdust ingestion by the tropical shad (Tenualosa macrura, Teleostei: Clupeidae): implications for conservation and fisheries. Biological Conservation 97(2):239-249. Biological Conservation Volume 97, Issue 2 , February 2001, Pages 239-249
 

 Bundy, J.M. and K.R. Bestgen. 2001. Evaluation of the interagency standardized monitoring program sampling technique in backwaters of the Colorado River in the Grand Valley, Colorado. Colorado State University Larval Fish Laboratory, Fort Collins. 83 pages.
 

 Bundy, J.M. and K.R. Bestgen. 2001. Confirmation of daily increment deposition in otoliths of young razorback suckers. Southwestern Naturalist 46(1):34-40.
 

 Carpenter, M.C., B.L. Cluer, G.R. Smith, E.J. Wick, J.L. Lockett, Jr. and S.J. Brockner. 2001. Field trials monitoring sand deposition and erosion on a razorback sucker spawning bar on the Green River near Jenson, Utah, and operational description of load-cell scour sensors. Pages 12-15 in Seventh Federal Interagency Sedimentation Conference, Proceedings, March 25-29, 2001, Reno, Nevada.
 

 Cohn, J.P. 2001. Resurrecting the dammed: a look at Colorado River restoration. Bioscience 51(12):998-1003.
 

 Desert Fishes Council. 2001. Proceedings of the Desert Fishes Council Volume XXXII Annual Symposium. Desert Fishes Council, Bishop, California. 82 pages.
 

 Gerber, A.S., C.A. Tibbets and T.E. Dowling. 2001. Role of introgressive hybridization in the evolution of the Gila robusta complex (Teleostei: Cyprinidae). Evolution 55(10):2028-2039.
 

 Golden, M.E. and P.B. Holden. 2001. Comparison of water quality, zooplankton density, and cover in razorback sucker (Xyrauchen texanus [Abbott]) spawning areas of Lake Mead and Lake Mohave: 2002 annual report. PR 749-2. BIO/WEST, Inc., Logan, Utah.
 

 Hamilton, S.J. and V.P. Palace. 2001. Assessment of selenium effects in lotic ecosystems. Commentary. Ecotoxicology and Environmental Safety 50(3):161-166.
 

 Hansen, J.V. 2001. Endangered economies. FORUM for Applied Research and Public Policy:45-51.
 

 Holden, P.B., P.D. Abate and T.L. Welker. 2001. Razorback sucker studies on Lake Mead, Nevada, 2000-2001. Annual report. BIO/WEST, Inc., Logan, Utah.
 

 Marsh, P.C. and C.A. Pacey 2001. Colorado River fishes database management, Lake Mohave wild adult and repatriate razorback sucker population status assessment 2001. Report agreement 99-FG-30-0067 and 01-FG-30-0003. U.S. Bureau of Reclamation, Boulder City, Nevada, and Arizona State University, Tempe. 15 pages.
 

 Marsh, P.C., C.A. Pacey and G. Mueller. 2001. Bibliography for the big river fishes, Colorado River. Final report, task agreement 1, cooperative agreement 00CRAG0004. U.S. Geological Survey, Denver, Colorado and Arizona State University, Tempe. 1515 KB (compact disc).
 

 Marsh, P.C., R.W. Clarkson and S.E. Stefferud. 2001. Native fish conservation and the Central Arizona Project. Proceedings of the Desert Fishes Council 32:15-16.
 

 Martinez, P.J., B.M. Johnson and J. Hobgood. 2001. Stable isotope signatures of native and non-native fishes in upper Colorado River backwaters and ponds. Southwestern Naturalist 46:311-322.
 

 Minckley, C.O. 2001. Memorandum: Second annual razorback roundup on Lake Havasu. U.S. Fish and Wildlife, Arizona Fishery Resources Office, Parker, Arizona. 1 page.
 

 Modde, T., R.T. Muth and G.B. Haines. 2001. Floodplain wetland suitability, access, and potential use by juvenile razorback suckers in the Middle Green River, Utah. Transactions of the American Fisheries Society 130(6):1095-1105.
 

 Mueller, G., P.C. Marsh, G.W. Knowles and T. Wolters. 2001. Distribution, movements, and habitat use of razorback suckers in Lake Mohave, Arizona-Nevada. Proceedings of the Desert Fishes Council 32:10.
 

 Mueller, G.A. 2001. Fish surveys from Davis Dam to Lake Havasu, August 2000 to May 2001. Annual report. U.S. Geological Survey, Fort Collins, Colorado. 17 pages.
 

 Mueller, G.A., M. Horn, Q. Bradwisch and L. Boobar. 2001. Examination of native recruitment and description of the fish communities found in the San Juan and Colorado River interface zones of Lake Powell, Utah. Open-file report 01-159. U.S. Geological Survey, Fort Collins, Colorado. 159 pages.
 

 No author. 2001. Elkhead Dam/reservoir fish separation preliminary design report. Draft. City of Craig, Craig, Colorado. 33 pages.
 

 Osmundson, D.B. 2001. Flow regimes for restoration and maintenance of sufficient habitat to recover endangered razorback sucker and Colorado pikeminnow in the upper Colorado River. U.S. Fish and Wildlife Service, Grand Junction, Colorado. 63 pages.
 

 Pyle, G.G., S.M. Swansonb and D.M. Lehmkuhl. 2001. Toxicity of uranium mine-receiving waters to caged fathead minnows, Pimephales promelas. Ecotoxicology and Environmental Safety 48(2):202-214.
 

 Ryden, D.W. 2001. Long-term monitoring of sub-adult and adult large bodied fishes in the San Juan River, 2000. Interim progress report (Final). U.S. Fish and Wildlife Service, Colorado River Fishery Project, Grand Junction. 127 pages + appendices.
 

 Ryden, D.W. 2001. Monitoring of razorback sucker stocked into the San Juan River as part of a five-year augmentation effort: 2000 Interim progress report (final). U.S. Fish and Wildlife Service, Colorado River Fishery Project, Grand Junction. 71 pages + appendix.
 

 Sappington, L.C., F.L. Mayer, F.J. Dwyer, D.R. Buckler, J.R. Jones and M.R. Ellersieck. 2001. Contaminant sensitivity of threatened and endangered fishes compared to standard surrogate species. Environmental Toxicology and Chemistry 20(12):2869-2876.
 

 Stalnaker, C.  2001. Studies of ecological requirements and role of stocking augmentation for endangered razorback sucker and bonytail in the lower Colorado River basin. 
 

 Stefferud, S.E., P.C. Marsh and R.W. Clarkson. 2001. Managing nonnative aquatic species impacts: implementation of the 1994 Central Arizona Project biological opinion. Proceedings of the Desert Fishes Council 32:2-3.
 

 Tuttle, P.L. and Orsak, E.L. 2001. Las Vegas Wash Water Quality and Implications to Fish and Wildlife. U.S. Fish and Wildlife Service, Nevada.
 

 Tyus, H.M. 2001. Decline, present status, and constraints limiting Colorado pikeminnow recovery. American Fisheries Society Annual Meeting 131:135.
 

 Tyus, H.M. and J.F. Saunders, III. 2001. An evaluation of the role of tributary streams for recovery of endangered fishes in the upper Colorado River Basin with recommendations for future recovery actions. Final Report. Project Number 101. University of Colorado at Boulder, Boulder. 121 pages.
 

 U.S. Bureau of Reclamation. 2001. Colorado River interim surplus guidelines. Federal Register 66(17):7772-7782.
 

 U.S. Bureau of Reclamation. 2001. Record of decision. Colorado River interim surplus guidelines. Final enviromental impact statement. 
 

 U.S. Environmental Protection Agency. 2001. Update of ambient water quality criteria for cadmium, 2001. CAS registry number 7440-43-9. U.S. Environmental Protection Agency, Office of Water, Office of Science Technology, Washington, D.C. 268 pages.
 

 U.S. Fish and Wildlife Service. 2001. Technical publications of the U.S. Fish and Wildlife Service Fish Technology Centers 1966–December 2000. 
 

 U.S. Geological Survey. 2001. Habitat measurement and modeling in the Green and Yampa Rivers - razorback sucker locations. U.S. Geological Survey, Midcontinent Ecological Science Center, Fort Collins, Colorado.
 

 U.S. Geological Survey. 2001. Habitat measurement and modeling in the Green and Yampa Rivers - channel models. U.S. Geological Survey, Midcontinent Ecological Science Center, Fort Collins, Colorado.
 

 Utah Department of Natural Resources. 2001. Species on the edge: quality management is quality growth. Utah Department of Natural Resources. 31 pages.
 

 Valdez, R.A. and R.T. Muth. 2001. Upper Colorado River endangered fish recovery program. American Fisheries Society Annual Meeting 131:43.
 

 Webb, R.H.  2001. Colorado River: an overview of historical changes in riverine and aquatic habitat. American Fisheries Society Annual Meeting 131:131-132.
 

 Zagarese, H.E. and C.E. Williamson. 2001. Implications of solar UV radiation exposure for fish and fisheries. Fish and Fisheries 2(3):250-260.
 

 Zhao, Y., Y. Chen and J.A. Brown. 2001. Impacts of egg and larval size on survival and growth of Atlantic cod under different feeding conditions. Journal of Fish Biology.
 

 Abate, P.D., T.L. Welker and P.B. Holden. 2002. Razorback sucker studies on Lake Mead, Nevada, 2001-2002. Annual report. BIO/WEST, Inc., Logan, Utah.
 

 Armstrong, T.N., R. Reimschuessel and B.P. Bradley. 2002. DNA damage, histologial changes and DNA repair in larval Japanese medaka (Oryzias latipes) exposed to ultraviolet-B radiation. Aquatic Toxicology 58(1-2):1-14.
 

 Bestgen, K.R., G.B. Haines, R. Brunson, T. Chart, M. Trammell, R.T. Muth, G. Birchell, K. Christopherson and J.M. Bundy. 2002. Status of wild razorback sucker in the Green River basin, Utah and Colorado, determined from basinwide monitoring and other sampling programs. Final report. Colorado State University, U.S. Fish and Wildlife, Utah Division of Wildlife Resources, U.S. Bureau of Reclamation and SWCA, Inc. 73 pages.
 

 Beyers, D.W. and C. Sodergren. 2002. Assessment of exposure of larval razorback sucker to selenium in natural waters. Archives of Environmental Contamination and Toxicology 42(1):53-59.
 

 Birchell, G.J., K.Christopherson, C. Crosby, T.A. Crowl, J. Gourley, M. Townsend, S. Goeking, T. Modde, M. Fueller and P. Nelson. 2002. Levee removal project: assessment of floodplain habitat restoration in the Middle Green River. Final report. Upper Colorado River Endangered Fish Recovery Program Project CAP-6-LR. Utah Division of Wildlife Resources, Salt Lake City. 257 pages + appendices.
 

 Brandenburg, W.H., M.A. Farrington, and S.J. Gottlieb. 2002. Razorback sucker larval fish survey: San Juan River 2001. River 1998 and 1999. River 1998 and 1999. Division of Fishes, Museum of Southwestern Biology, University of New Mexico, Albuquerque. 34 pages.
 

 Burdick, B.D. 2002. Evaluating the use of sloped gravel-pit ponds by endangered and native fishes and removal on nonnative fishes from sloped gravel-pit ponds in in the upper Colorado River near Grand Junction, Colorado. Final report. Project number CAP-6-GP. U.S. Fish and Wildlife Service, Grand Junction, Colorado.
 

 Burdick, B.D. 2002. Annual operation and maintenance of the fish passage structure at the Redlands Diversion Dam on the Gunnison River. Annual report. Project Number CAP-4b. U.S. Fish and Wildlife Service, Grand Junction, Colorado.
 

 Carpenter, M.C., G.R. Smith, E.J. Wick, and Wullschleger. 2002. Deposition and erosion on razorback sucker spawning bar on the Green River near Jensen, Utah. Upper Colorado River Endangered Fish 23rd Annual Recovery Program Researchers Meeting, January 16-17, 2002. Pages. 6-7.
 

 Coggins, L., C. Walters and R.S. Rogers. 2002. Fish community in Grand Canyon: past, present, and future? Ecological Society of America Annual Meeting Abstracts 87:101.
 

 Collins, J.P., J. Deacon, T. Dowling and P. Marsh. 2002. Wendell Lee Minckley 1935-2001. Copeia 002(1):258-262.
 

 Czapla, T.E. 2002. Facilities plan for the production of endangered fishes to meet state stocking plans as part of the Upper Colorado River Endangered Fish Recovery Program. Upper Colorado River Basin Recovery Implementation Program, United States Department of Interior, Fish and Wildlife Service, Region 6, Denver, Colorado. 14 pages.
 

 Davis, M. 2002. Habitat use by razorback suckers in the Colorado River: the implacts of pseudoreplication. Arizona Game and Fish Department, Phoenix. 15 pages.
 

 Desert Fishes Council. 2002. Proceedings of the Desert Fishes Council Volume XXXIII Annual Symposium. Desert Fishes Council, Bishop, California. 72 pages.
 

 Dexter National Fish Hatchery. 2002. Dexter NFH stocking trip record 02-06. Dexter National Fish Hatchery.
 

 Fairchild, J.F., A.L. Allert, B.C. Poulton and R.V. Graham. 2002. Site specific assessment of the risk of ammonia to endangered Colorado pikeminnow and razorback sucker populations in the upper Colorado River adjacent to the Atlas Mill Tailings Pile, Moab, Utah. U.S. Fish and Wildlife Service, Salt Lake City, Utah. 131 pages.
 

 Fairchild, J.F., A.L. Allert, B.C. Poulton and R.V. Graham. 2002. Site-specific assessment of the risk of ammonia to endangered Colorado pikeminnow and razorback sucker populations in the upper Colorado River adjacent to the Atlas Mill tailings pile, Moab, Utah. Final report. U.S. Geological Survey, Columbia Environmental Research Center, Columbia, Missouri, and U.S. Environmental Protection Agency, Region 8, Denver, Colorado. 125 pages.
 

 Farrington, M.A., W.H. Brandenburg and S.J. Gottlieb. 2002. Colorado pikeminnow larval fish survey in the San Juan River during 2002. Draft report. Division of Fishes, Museum of Southwestern Biology, Department of Biology, University of New Mexico, Albuquerque. 33 pages.
 

 Garrigan, D., P.C. Marsh and T.E. Dowling. 2002. Long-term effective population size of three endangered Colorado River fishes. Animal Conservation 5:95-102.
 

 Golden, M.E. and P.B. Holden. 2002. Comparison of water quality, zooplankton density, and cover in razorback sucker (Xyrauchen texanus [Abbott]) spawning areas of Lake Meah and Lake Mohave: 2002 annual report. PR 784-1. BIO/WEST, Inc., Logan, Utah.
 

 Hamilton, S.J. 2002. Rationale for a tissue-based selenium criterion for aquatic life. Aquatic Toxicology 57(1-2):85-100.
 

 Hamilton, S.J., K.M. Holley and K.J. Buhl. 2002. Hazard assessment of selenium to endangered razorback suckers (Xyrauchen texanus). Science of the Total Environment 291(1-3):111-121.
 

 Hamilton, S.J., K.M. Holley, K.J. Buhl, F.A. Bullard, L.K. Weston and S.F. McDonald. 2002. Toxicity of selenium and other elements in food organisms to razorback sucker larvae. Aquatic Toxicology 59(3-4):253-281.
 

 Hamilton, S.J., K.M. Holley, K.J. Buhl, F.A. Bullard, L.K. Weston and S.F. McDonald. 2002. Impact of selenium and other trace elements on the endangered adult razorback sucker. Impact of selenium and other trace elements on the endangered adult razorback sucker. Environmental Toxicology 17(4):297-323.
 

 Harris, P.M., R.L. Mayden, H.S.E. Perez and F.G. De Leon. 2002. Phylogenetic relationships of Moxostoma and Scartomyzon (Catostomidae) based on mitochondrial cytochrome b sequence data. Journal of Fish Biology 61(6):1433-1452.
 

 Karp, C.A. and G. Mueller. 2002. Razorback sucker movements and habitat use in the San Juan River inflow, Lake Powell, Utah, 1995-1997. Western North American Naturalist 62(1):106-111.
 

 Lenon, N., K. Stave, T. Burke and J. Deacon. 2002. Bonytail (Gila elegans) may enhance survival of razorback suckers (Xyrauchen texanus) in rearing ponds by preying on exotic crayfish. Journal of the Arizona-Nevada Academy of Sciences 34(1)46-52.
 

 Meismer, S. and M. Trammell. 2002. Nonnative cyprinid removal in the lower Green and Colorado rivers, Utah. Draft report. Utah Division of Wildlife, Moab.
 

 Minckley, C.O. and M. Thorson. 2002. Parker Fisheries Resources Office activities during the razorback roundup, March 2002, Lake Mohave, AZ-NV. Document no. USFWS-AZFRO-PA-02-006. U.S. Fish and Wildlife Service, Arizona Fishery Resources Office, Parker, Arizona. 5 pages.
 

 Minckley, C.O. and M. Thorson. 2002. Trip report: third annual native fish roundup on Lake Havasu CA-NV, 18 - 22 February 2002. Document no. USFWS-AZFRO-PA-02-005. U.S. Fish and Wildlife Service, Arizona Fishery Resources Office, Parker, Arizona. 3 pages.
 

 Modde, T. and M.F. Fuller. 2002. Chapter 8: native fishes. Pages 8.1-8.35 in The Levee Removal Project: Assessment of floodplain habitat restoration in the middle Green River. Final report. U.S. Fish and Wildlife Service, Denver, Colorado.
 

 Mueller, G. and P. Marsh. 2002. Lost, a desert river and its native fishes: a historical perspective of the lower Colorado River. Proceedings of the Desert Fishes Council 33:40-41.
 

 Mueller, G.A. and P.C. Marsh. 2002. Lost, a desert river and its native fishes: a historical perspective of the lower Colorado River. Information and Technology report USGS-BRD/ITR-2002-0010. U.S. Government Printing Office, Denver, Colorado. 69 pages.
 

 Mueller, G.A., J. Carpenter and C.O. Minckley. 2002. Cibola High Levee Pond annual report 2002. U.S. Geological Survey, Fort Collins Science Center, Colorado. 18 pages.
 

 National Park Service. 2002. Special regulations; areas of the national park system. Federal Register 67(172):56785-56794.
 

 Nesler, T.P. 2002. Interactions between endangered fishes and introduced game fishes in the Yampa River, Colorado 1987-1991. Final report. Project number 91-29. Colorado Division of Wildlife, Aquatic Research Section, Fort Collins. 53 pages.
 

 Osmundson, D.B. 2002. Verification of stocked razorback sucker reproduction in the Gunnison River via annual collections of larvae. Annual report. Project Number 121. U.S. Fish and Wildlife Service, Grand Junction, Colorado.
 

 Slaughter IV, J.E., S.D. Gurtin, J.A. Falke, S.J. Sampson and R.H. Bradford. 2002. Habitat selection and use by hatchery-reared adult razorback sucker and flathead catfish and the response of razorback sucker to off-channel habitat restoration activities within the Imperial Division, Lower Colorado River. Arizona Game and Fish Department, Research Branch, Phoenix, Arizona.
 

 Smith, G.E., T.E. Dowling, K.W. Gobalet, T. Lugaski, D.K. Shiozawa and R.P. Evans. 2002. Biogeography and rates of evolution of Great Basin fishes. Pages 175-234 in R. Hershler, D.B. Madsden and D.R. Curry, eds. Great Basin Aquatic Systems History, Contributions to the Earth Sciences, number 33. Smithsonian Institution, Washington, D.C. Smithsonian.
 

 Turner, T.F. M.V. McPhee, D. Alò and W.H. Brandenburg. 2002. Determination of occurrence of hybridization of San Juan River razorback sucker through genetic screening of larval fishes. Draft report. Division of Fishes, Museum of Southwestern Biology, MSC 03-2020, University of New Mexico, Albuquerque. 19 pages.
 

 U.S. Bureau of Reclamation. 2002. Summer low flow test report. U.S. Bureau of Reclamation, upper Colorado region, Western Colorado Area Office, Grand Junction, Durango. 25 pages + attachments.
 

 U.S. Bureau of Reclamation. 2002. Navajo Unit, Colorado River Storage Project, New Mexico and Colorado. Federal Register 67(171):56580-56582.
 

 U.S. Bureau of Reclamation. 2002. Imperial irrigation district water conservation and transfer project, draft habitat conservation plan, California [INT-DES-01-44], notice of public hearings. Federal Register 67(47):10928-10930.
 

 U.S. Bureau of Reclamation. 2002. Environmental impact statement Navajo Reservoir operations. Draft. 
 

 U.S. Bureau of Reclamation. 2002. Animas-La Plata Project. Ridges Basin Dam and Reservoir pre-construction facilities relocation. Finding of no significant impact. 
 

 U.S. Bureau of Reclamation. 2002. Animas-La Plata Project. Ridges Basin Dam and Reservoir pre-construction facilities relocation. 
 

 U.S. Environmental Protection Agency. 2002. Economic and environmental impact analysis of the proposed effluent limitations guidelines and standards for the concentrated aquatic animal production industry. U.S. Environmental Protection Agency. 314 pages.
 

 U.S. Fish and Wildlife Service. 2002. Notice of availability of recovery goals for four endangered fishes of the Colorado River basin. Federal Register 67(167):55270-55271.
 

 U.S. Fish and Wildlife Service. 2002. Endangered and threatened species permit applications. Federal Register 67(68):17088-17089.
 

 U.S. Fish and Wildlife Service. 2002. Endangered and threatened species permit applications. Federal Register 67(45):10429-10430.
 

 U.S. Fish and Wildlife Service. 2002. Endangered and threatened species permit applications. Federal Register 67(249):79130-79131.
 

 U.S. Fish and Wildlife Service. 2002. Endangered and threatened species permit applications. Federal Register 67(61):15222-15223.
 

 U.S. Fish and Wildlife Service. 2002. Endangered and threatened species permit applications. Federal Register 67(192):62074-62075.
 

 U.S. Fish and Wildlife Service. 2002. Endangered and threatened wildlife and plants: listing the Gila chub as endangered with critical habitat; proposed rule. Federal Register 67(154):51947-51985.
 

 U.S. Fish and Wildlife Service. 2002. Razorback sucker (Xyrauchen texanus) recovery goals: ammendment and supplement to the razorback sucker recovery plan. U.S. Fish and Wildlife Service, Mountain-Prairie Region (6), Denver, Colorado. 113 pages.
 

 Upper Colorado River Basin Recovery Implementation Program. 2002. Nonnative fish control workshop. Summary, conclusions, and recommendations. Upper Colorado River Endangered Fish Recovery Program, Lakewood, Colorado. 101 pages.
 

 Utah Department of Natural Resources. 2002. Range-wide conservation agreement and strategy for roundtail chub Gila robusta, bluehead sucker Catostomus discobolus, and flannelmouth sucker. Draft #4. Utah Department of Natural Resources, Salt Lake City. 19 pages.
 

 Western Area Power Administration. 2002. Modification and construction of transmission lines for the U.S. 93 Hoover Dam bypass project (DOE/EIS-0352). Federal Register 67(190):61619-61621.
 

 Agyagos, F. 2003. Bubbling Ponds Hatchery, yearly summary 2003. Arizona Game and Fish Department, Phoenix. 3 pages.
 

 Anderson, R. and G. Stewart. 2003. Riverine fish flow investigations. Habitat based instream flow recommendations for the Yampa, Colorado and Dolores Rivers. Colorado Division of Wildlife, Fort Collins. 100 pages.
 

 Brandenburg, W.H., M.A. Farrington, and S.J. Gottlieb. 2003. Razorback sucker larval fish survey: San Juan River 2002. River 1998 and 1999. River 1998 and 1999. Division of Fishes, Museum of Southwestern Biology, University of New Mexico, Albuquerque. 48 pages.
 

 Burdick, B.D. 2003. Monitoring and evaluating various sizes of domestic-reared razorback sucker stocked in the upper Colorado and Gunnison Rivers: 1995- 2001. U.S. Fish and Wildlife Service, Grand Junction, Colorado. i-F2 pages.
 

 Crist, L.W. and D.W. Ryden. 2003. Genetics management plan for the endangered fishes of the San Juan River. Final report. U.S. Fish and Wildlife Service, Colorado River Fishery Project, Grand Junction, Colorado. 45 pages.
 

 Davis, J.E. 2003. Non-native species monitoring and control, San Juan River 1999-2001. Progress report. Final report. U.S. Fish and Wildlife Service, New Mexico Fishery Resources Office, Albuquerque. 41 pages + appendices.
 

 Douglas, M.R., P.C. Brunner and M.E. Douglas. 2003. Drought in an evolutionary context: molecular variability in flannelmouth sucker (Catostomus latipinnis) from the Colorado River Basin of western North America. Freshwater Biology 48(7):1254-1273.
 

 Dowling, T.E., P.C. Marsh, A. Kelsen and C.A. Tibbets. 2003. Genetic monitoring and repatriation of an endangered western fish. American Fisheries Society Annual Meeting 133:49.
 

 Gobalet, K.W. 2003. An alternative exercise for generating a dichotomous key to vertebrae. American Biology Teacher 65(9):697-700.
 

 Golden, M.E. and P.B. Holden. 2003. Determining conditions that promote razorback sucker recruitment in Lake Mead: a summary of the 2000-2002 pilot study. PR 784-2. BIO/WEST, Inc., Logan, Utah.
 

 Gurtin, S.D., J.E. Slaughter, S.J. Sampson and R.H. Bradford. 2003. Use of existing and reconnected backwater habitats by hatchery-reared adult razorback suckers: A predictive model for the Imperial Division, Lower Colorado River. Transactions of the American Fisheries Society 132(6):1125-1137.
 

 Hamilton, S.J., K.M. Holley, K.J. Buhl, F.A. Bullard, L.K. Weston and S.F. McDonald. 2003. Evaluation of flushing of a backwater channel: concentrations of selenium and other inorganic elements in water, sediment, invertebrates, forage fish, and Colorado pikeminnow. Recovery program project number C6-WW. U.S. Geological Survey, Biological Resources Division, Columbian Environmental Research Center, Yankto, South Dakota. 67 pages.
 

 Hawkins, J.A. 2003. Recapture and growth rates of three Colorado River endangered fish species: a comparison between electrofishing and nonelectrofishing. Colorado State University, Fort Collins. 23 pages.
 

 Irving, D., B. Haines and T. Modde. 2003. White River base flow study, Colorado and Utah, 1995-1996. Draft report. Upper Colorado River Basin Recovery Implementation Program Project No. 5D. 
 

 Irving, D., B. Haines and T. Modde. 2003. Appendices. White River base flow study, Colorado and Utah, 1995-1996. Draft report. Upper Colorado River Basin Recovery Implementation Program Project No. 5D. 
 

 Jackson, J.A. 2003. Nonnative control in the lower San Juan River 2003. Interim progress report (draft). Interim Progress Report (Draft). Utah Division of Wildlife Resources, Moab. 16 pages + appendix.
 

 Jacobson, B. 2003. Table: Razorback sucker releases by Arizona Game and Fish Department into the Colorado River below Parker Dam, 12/12/2003. Arizona Game and Fish Department, Phoenix. 1 page.
 

 Jann, D. and C.O. Minckley 2003. Twelve PIT tagged razorback suckers stocked to main channel Imperial Division. Personal communication, J.D. Schooley, Arizona State University, Tempe.
 

 LaGory, K.E., J.W. Hayse and D. Tomasko 2003. Recommended priorites for geomorphology research in endangered fish habitats of the upper Colorado River basin. Final report. Project 134. Upper Colorado River Endangered Fish Recovery Program. 159 pages.
 

 Lapahie, A. 2003. Reports of the number of fish using the selective fish passage at the public service company of New Mexico weir. 
 

 Lenon, N. 2003. McAllister Lake water quality improvement pilot study. Draft report. U.S. Bureau of Reclamation, Boulder City, Nevada.
 

 Marsh, P.C., B.E. Bagley, G.W. Knowles, G. Schiffmiller and P.A. Sowka. 2003. New and rediscovered populations of loach minnow, Tiaroga cobitis (Cyprinidae), in Arizona. Southwestern Naturalist 48(4):666-669.
 

 Marsh, P.C., C.A. Pacey and B.R. Kesner. 2003. Decline of the razorback sucker in Lake Mohave, Colorado River, Arizona and Nevada. Transactions of the American Fisheries Society 132:1251-1256.
 

 Martinez, P. 2003. Look at the smallmouth bass scenario in the Yampa River basin. Presentation at Upper Colorado River Endangered Fish Recovery Program, 24th Annual Research Meeting, Grand Junction, Colorado.
 

 Miller, B. 2003. Memorandum: San Juan River basin recovery implementation program maintenance. Base flow recommendations for water conservation. 
 

 Minckley, W.L., P.C. Marsh, J.E. Deacon, T.E. Dowling, P.W. Hendrick, W.J. Matthews and G. Mueller. 2003. Conservation plan for native fishes of the lower Colorado River. Bioscience 53(3):219-234.
 

 Modde, T. and C. Keleher. 2003. Flow recommendations for the Duchesne River with a synopsis of information regarding endangered fishes. Final report project number 84-1. 
 

 Modde, T. and G.B. Haines. 2003. Adult fish use in the Duchesne River below Myton, 1997-2000. Final report project no. 84-3. U.S. Fish and Wildlife Service, Denver, Colorado.
 

 Mueller, G.A. 2003. Role of stocking in the reestablishment and augmentation of native fish in the lower Colorado River mainstem (1998-2002). Draft. Open-file report 03-288. U.S. Geological Survery, Fort Collins Science Center, Colorado. 42 pages.
 

 Mueller, G.A., J. Carpenter, P.C. Marsh and C.O. Minckley. 2003. Cibola High Levee Pond annual report 2003. U.S. Geological Survey, Fort Collins Science Center, Colorado. 26 pages.
 

 Mueller, G.A., P.C. Marsh, D. Foster, M. Ulibarri and T. Burke. 2003. Factors influencing post-stocking dispersal of razorback sucker. North American Journal of Fisheries Management 23(1):270-275.
 

 National Park Service. 2003. Special regulations; areas of the national park system. Federal Register 68(12):2466-2476.
 

 National Park Service. 2003. Personal watercraft use at Lake Mead National Recreation Area. Federal Register 68(68):17292-17307.
 

 Nesler, T.P., K. Christopherson, J.M. Hudson, C.W. McAda, F. Pfeifer and T.E. Czapla. 2003. An integrated stocking plan for razorback sucker, bonytail, and colorado pikeminnow for the Upper Colorado River Endangered Fish Recovery Program. Addendum to State Stocking Plans. Upper Colorado River Basin Recovery Implementation Program. 15 pages.
 

 Osmundson, D.B. 2003. Removal of non-native centrarchids from upper Colorado River backwaters, 1991–2001. Final report. Project number 89. U.S. Fish and Wildlife Service, Grand Junction, Colorado.
 

 Patten, M.A., G. McCaskie and P. Unitt. 2003. Birds of the Salton Sea: Status, Biogeography, and Ecology. University of California Press, Berkeley.
 

 Propst, D.L., A.L. Hobbes and R.D. Larson. 2003. Small-bodied fish monitoring San Juan River 1998-2001. Conservation Services Division, New Mexico Department of Game and Fish, Santa Fe. 88 pages.
 

 Ryden, D.W. 2003. An augmentation plan for Colorado pikeminnow in the San Juan River. Final report. U.S. Fish and Wildlife Service, Colorado River Fishery Project, Grand Junction. 63 pages + appendices.
 

 Ryden, D.W. 2003. Long-term monitoring of sub-adult and adult large bodied fishes in the San Juan River: 1999-2001 integration report. Final report. U.S. Fish and Wildlife Service, Colorado River Fishery Project, Grand Junction. 127 pages + appendices.
 

 Ryden, D.W. 2003. An augmentation plan for razorback sucker in the San Juan River. U.S. Fish and Wildlife Service, Grand Junction, Colorado. 32 pages.
 

 Ryden, W.D. 2003. Long-term monitoring of sub-adult and adult large bodied fishes in the San Juan River: 2002. Final report. U.S. Fish and Wildlife Service, Colorado River Fishery Project, Grand Junction. 68 pages.
 

 Snyder, D.E. 2003. Computer-interactive key to sucker larvae and early juveniles of the upper Colorado River basin with description of longnose sucker. Final report. Colorado State University Larval Fish Laboratory, Fort Collins.
 

 Snyder, D.E. 2003. Computer-interactive key to eggs, larvae and early juveniles of catostomid fishes of the upper Colorado River basin (data set for use with DELTA intkey). Colorado State University Larval Fish Laboratory, Fort Collins.
 

 Snyder, D.E. 2003. Electrofishing and its harmful effects onf fish. Final report. Information and Technology Report USGS/BRD/ITR–2003-0002. U.S. Bureau of Reclamation, upper Colorado Regional Office, Salt Lake City, Utah.
 

 Tiersch, T.R., W.R. Wayman, J.H. Williamson, O.T. Gorman, G.J. Carmichael and C.R. Figiel, Jr. 2003. Cryopreservation of sperm from endangered Colorado squawfish. North American Journal of Aquaculture 66(1):8-14.
 

 U.S. Bureau of Reclamation. 2003. Report to Congress: operations of Glen Canyon Dam pursuant to the Grand Canyon Protection Act of 1992, water years 1999-2001. 
 

 U.S. Bureau of Reclamation. 2003. Environmental assessment. Endangered fish passage project at the Grand Valley Project Diversion Dam and fish screen in the Government Highline Canal. Final. 
 

 U.S. Bureau of Reclamation. 2003. Endangered fish passage project at the Grand Valley Project Diversion Dam and fish screen in the Government Highline Canal. Finding of no significant impact. 
 

 U.S. Bureau of Reclamation. 2003. Endangered Fish Passage Project at the Grand Valley Project Diversion Dam and Fish Screen in the Government Highline Canal. U.S. Bureau of Reclamation, Upper Colorado Region, Western Colorado Area Office, Grand Junction, Colorado. 59 pages + appendices.
 

 U.S. Department of Energy. 2003. Notice of incorporation of documents into the record of the proceeding for project no. 2069-007. Federal Register 68(87):23985-23986.
 

 U.S. Fish and Wildlife - Arizona Fishery Resources Offices. 2003. Monthly activity report Arizona Fishery Resources Offices Pinetop, Parker, San Carlos, Flagstaff. USFWS-AZFRO-PT-03-012 
 

 U.S. Fish and Wildlife - Arizona Fishery Resources Offices. 2003. Monthly activity report Arizona Fishery Resources Offices Pinetop, Parker, San Carlos, Flagstaff. USFWS-AZFRO-PT-03-009. 
 

 U.S. Fish and Wildlife Service. 2003. Endangered and threatened species permit applications. Federal Register 68(62):15739-15740.
 

 U.S. Fish and Wildlife Service. 2003. Endangered and threatened species permit applications. Federal Register 68(103):32077-32078.
 

 U.S. Fish and Wildlife Service. 2003. Environmental assessment for the management plan for endangered fishes in the Yampa River basin. Draft. Federal Register 68(146):44808-44809.
 

 U.S. Fish and Wildlife Service. 2003. Endangered and threatened species permit applications. Federal Register 68(26):6497-6498.
 

 U.S. Fish and Wildlife Service. 2003. Endangered and threatened species permit applications. Federal Register 68(118):36829-36831.
 

 U.S. Fish and Wildlife Service. 2003. Native fish protected habitats quarterly report: second quarter, FY 2003. Document number: USFWS-AZFRO-PA-03-041. U.S. Fish and Wildlife, Arizona Fishery Resources Office, Parker, Arizona. 11 pages.
 

 U.S. Fish and Wildlife Service. 2003. Native fish protected habitats quarterly report: first quarter, FY 2003. Document number: USFWS-AZFRO-PA-03-025. U.S. Fish and Wildlife, Arizona Fishery Resources Office, Parker, Arizona. 10 pages.
 

 Ulibarri, M.E. 2003. Annual report, fiscal year 2001. U.S. Fish and Wildlife Service, Dexter, New Mexico. 26 pages.
 

 Ulibarri, M.E. 2003. Annual report, fiscal year 2002. U.S. Fish and Wildlife Service, Dexter, New Mexico. 59 pages.
 

 Watters, J.V., S.C. Lemab and G.A. Nevitt. 2003. Phenotype management: a new approach to habitat restoration. Biological Conservation 112(3):435-445.
 

 Welker, T.L. and P.B. Holden. 2003. Razorback sucker studies on Lake Mead, Nevada, 2002-2003. Annual report. BIO/WEST, Inc., Logan, Utah.
 

 Werner, W.E.  2003. Conservation of native species through habitat conservation plans, safe harbor agreements, and similar mechanisms in Arizona. American Fisheries Society Annual Meeting 133:337-338.
 

 Wesp, H.M. and A.C. Gibb. 2003. Do endangered razorback suckers have poor larval escape performance relative to introduced rainbow trout? Transactions of the American Fisheries Society 132(6):1178.
 

 Yokoi, T., T. Tatsumi and H. Yoshitake. 2003. Selective selenate adsorption on cationated amino-functionalized MCM-41. Bulletin of the Chemical Society of Japan 76(11):2225-2232.
 

 Arizona Game and Fish Department. 2004. Table: Arizona Game and Fish Department hatchery record database, stocking summary for razorback sucker 1986-2004. Arizona Game and Fish Department, Phoenix. 6 pages.