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<br />
<br />With the knowledge that we have about the impacts of
<br />dams and reservoirs on the endangered fish species, there is
<br />a definite need to consider these species in the planning and
<br />operation phases. It will be necessary to have flow and
<br />temperature regimes that are much more favorable to these
<br />species. Factors, if bnplemented, that might help to balance
<br />the construction of impoundments and at the same time
<br />preserve much of the habitat for endangered species include
<br />the following:
<br />
<br />1. Purchase water rights to replace depletions.
<br />2. Habitat manipulation (construction of nursery areas,
<br />backwater habitats, etc.).
<br />3. Construction of fish passage ways (ladders, etc.).
<br />4. Supplemental stocking programs (artificial propaga_
<br />t ion) .
<br />
<br />Bishop and Porcella [16] sized up the situation very
<br />aptly when they said that the future ability of the Colorado
<br />River to sustain its unique fisheries wi 11 be dependent on
<br />maintaining the quantities and qualities of water required
<br />for them.
<br />
<br />LITERATURE CITED
<br />
<br />1.
<br />
<br />Behnke, R. J., and D. E. Benson.
<br />threatened fishes of the Upper
<br />Cooperative Extension Service.,
<br />Collins, Colo. Bull. 503A. 34 p.
<br />
<br />1980. Endangered and
<br />Colorado River Basin.
<br />Colo. St. Univ., Fort
<br />
<br />2.
<br />
<br />Tyus, H. M., B. D. Burdick, R. A. Valdez, C. M. Haynes,
<br />T. A. Lytle, and C. R. Berry. 1981. Fishes of the
<br />Upper Colorado River Basin: Distribution, abundance,
<br />and status. Prep. for the End. Colo. River Fish. Symp.,
<br />Am. Fish. Soc., Albuquerque, NM. 18 Sept. 1981.
<br />
<br />3.
<br />
<br />Binns, N. A. 1978. Habitat structure of the Kendall
<br />Warm Springs, with reference to the endangered Kendall
<br />Warm Springs dace, Rhinichthys osculus thermalis.
<br />Fish. Tech. Bull. No.4, Wyoming Game and Fish Dept.,
<br />Cheyenne, Wyo.
<br />
<br />4.
<br />
<br />Seethaler, K. 1978. Life history and ecology of the
<br />Colorado squawfish (Ptychocheilius lucius) in the Upper
<br />Colorado River Basin. M.S. Thesis. Utah State Univ.,
<br />Logan, UT. 156 p.
<br />
<br />5.
<br />
<br />Girard, C. 1856. Researches upon the cyprinid fishes
<br />inhabiting the fresh water of the United States of
<br />America, west of the Mississippi Valley, from specimens
<br />in the museum of the Smithsonian Institution. Proc.
<br />Acad. Nat. Sci., Phila. 8:l65-21~.
<br />
<br />548
<br />
<br />.........
<br />
<br />6.
<br />
<br />Miller,
<br />surveys
<br />Science
<br />
<br />R. R. 1946. The need for ichthyologi.cal
<br />of the major rivers of western North Amerlca.
<br />104(2710):517-519.
<br />
<br />7.
<br />
<br />Valdez, R. A., and G. H. Clemmer. 1981. Gila ~
<br />and Gila elegans life history and P!ospe~ts for re-
<br />f th E d Colo. Rlver F1Sh. Symp.,
<br />covery. Prep. or en.
<br />. Alb r e NM 18 Sept. 1981.
<br />Am. F1Sh. Soc., uque qu, .
<br />
<br />. S F., and C. Girard. 1853. Fishes. 148-152
<br />Balrd, . . .
<br />pp. In: Capt. L. Sitgraves' Rept. of an expedlt~on
<br />down the Zuni and Colorado Rivers. U.S. Senate Executlve
<br />Document 59, 32nd Congress, 2nd Session.
<br />
<br />1980. The impacts of habitat alterations
<br />Molles, M. f h U
<br />and introduced species on the native fishes 0 t e pper
<br />Colorado River Basin. 163-181 pp. In: Spofford, W. D.,
<br />A L Parker and A. V. Kneese (eds.). Energy develop-
<br />m;n; in the ~outhwest. Vol. II. Resources for ~he
<br />Future RES paper R-18. Baltimore, MD: Johns Hopklns
<br />
<br />Univ. Press. 541 p.
<br />
<br />ld P B 1980. The relationship between flows in
<br />Ho en, . . l' .
<br />the Yampa River and success of rare fish popu atlons ln
<br />the Green River System. Bio/West PR-31-1. Logan, UT.
<br />
<br />H Cl 1977 The humpback
<br />Suttkus, R. D., and G. . emmer.. _
<br />chub Gila~, in the Grand Cany~n area of the C~lo
<br />rado River. Occas. Pap. Tulane Unlv., Mus. Nat. Hlst.
<br />
<br />1:1-30.
<br />
<br />8.
<br />
<br />9.
<br />
<br />10.
<br />
<br />11.
<br />
<br />12.
<br />
<br />Joseph, T. W., J. A. Sinning, R. J. Behnke, and P'. B.
<br />Holden. 1977. An evaluation of the status, llfe
<br />history, and habitat requirements of end~ngered and
<br />threatened fishes of the Upper Colorado Rlver system.
<br />FWS/OBS Rept. No. 24, Ft. Collins, co. 183 p.
<br />
<br />. k C D R H Kramer and D. R. Franklin. 1970.
<br />Vanlce, . . , .. , ., 1 d
<br />Distribution of Green River flshes ln Utah and Co ora 0
<br />following closure of Flaming Gorge Dam. Southwest Nat.
<br />
<br />14(3):297-315.
<br />
<br />H rl.s R E H N Sersland, and F. P. Sharpe. 1981.
<br />ar , . ., . . f. h .
<br />Realities of providing water for endangered lS es ln
<br />the Upper Colorado River system. Prep. for the End.
<br />Colo. River Fish. Symp., Am. Fish. Soc., Albuquerque,
<br />
<br />NM. 18 Sept. 1981.
<br />
<br />t f the Interior Bureau of Reclamation.
<br />U.S. Departmen 0, d
<br />1981. Upper Colorado Region projected water supply an
<br />depletions. Salt Lake City, Utah. Sept. 14 pp.
<br />
<br />549
<br />
<br />13.
<br />
<br />14.
<br />
<br />15.
<br />
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