Laserfiche WebLink
AN AUGMENTATION PLAN FOR RAZORBACK SUCKER <br />rado and Utah, 1979-1986. Transactions of the <br />American Fisheries Society 119:1035-1047. <br />Tyus, H. M. 1992. Razorback sucker listed as endan- <br />gered: a further decline in the Colorado River system. <br />Endangered Species Update 9(5&6):1-3. <br />Tyus, H. M., and C. A. Karp. 1989. Habitat use and <br />streamflow needs of rare and endangered fishes, <br />Yampa River, Colorado and Utah. U.S. Fish and <br />Wildlife Service Biological Report 89(14):1-27. <br />Tyus, H. M., and C. A. Karp. 1990. Spawning and move- <br />ments of razorback sucker, Xyrauchen to mnus, in the <br />Green River basin of Colorado and Utah. The South- <br />western Naturalist 35:427-433. <br />USFWS (U.S. Fish and Wildlife Service). 1987. Recovery <br />implementation program for endangered fish species <br />in the upper Colorado River basin. USFWS, Region <br />6, Denver, Colorado. <br />USFWS (U.S. Fish and Wildlife Service). 1991. Endan- <br />gered and threatened wildlife and plants: the razor- <br />back sucker (Xyrauchen texanus). Determined to be <br />an endangered species. Federal Register 56 <br />(205):54957-54967. <br />USFWS (U.S. Fish and Wildlife Service). 1993. Draft, <br />Section 7 consultation, sufficient progress, and his- <br />toric projects agreement and recovery action plan. <br />Recovery implementation program for endangered <br />fish species in the upper Colorado River basin. <br />USFWS, Region 6, Denver, Colorado. <br />Utter, F. M. 1981. Biological criteria for definition of <br />111 <br />species and distinct intraspecific populations of <br />anadromous salmonids under U.S. Endangered Spe- <br />cies Act of 1973. Canadian Journal of Fisheries and <br />Aquatic Sciences 38:1626-1635. <br />Wallis, O. L. 1951. The status of the fish fauna of the <br />Lake Mead National Recreational Area, Arizona- <br />Nevada. Transactions of the American Fisheries So- <br />ciety 80:84-92. <br />Wick, E. J., C. W. McAda, and R. V. Bulkley. 1982. Life <br />history and prospects for recovery of the razorback <br />sucker. Pages 120-126 in W. H. Miller, H. M. Tyus, <br />and C. A. Carlson, editors. Fishes of the upper Col- <br />orado River system: present and future. American <br />Fisheries Society, Western Division, Bethesda, Mary- <br />land. <br />Williamson, J. H., and R. S. Wydoski. 1994. Genetics <br />management guidelines. Recovery implementation <br />program for endangered fish species in the upper <br />Colorado River basin. U.S. Fish and Wildlife Service, <br />Denver, Colorado. <br />Wright, S. 1931. Evolution in Mendelian populations. <br />Genetics 16:97-159. <br />Wydoski, R. S., and J. Hamill. 1991. Evolution of a co- <br />operative recovery program for endangered fishes in <br />the upper Colorado River basin. Pages 123-135 in <br />W. L. Minckley and J. E. Deacon, editors. Battle <br />against extinction. University of Arizona Press, Tuc- <br />son.