<br />CLARKSON AND CHILDS-TEMPERATURE EFFECTS ON FISHES
<br />
<br />more comprehensive (and expensive) control
<br />measures against nonnative fishes.
<br />
<br />ACKNOWLEDGMENTS
<br />
<br />We express foremost appreciation to M. Lu-
<br />pher, who cultured G. CYPha and conducted tem-
<br />perature experiments on G. CYPha and P. lucius.
<br />We also thank P. Hines,]. Diehl, and R. Soren-
<br />sen for field culturing and hatchery expertise,
<br />R. Hamman and P. Marsh for discussion regard-
<br />ing G. CYPha culture techniques, and L. Allison
<br />for statistical advice. P. Marsh, K. Bestgen, R.
<br />Valdez, R. Muth, and anonymous reviewers ed-
<br />ited and improved earlier drafts of this article;
<br />they may not agree with our conclusions, how-
<br />ever. Funding for this research was provided to
<br />Arizona Game and Fish Department through a
<br />Cooperative Agreement with U.S. Bureau of
<br />Reclamation, 9-FC-40-07940. Collections were
<br />made under U.S. Fish and Wildlife Service Sub-
<br />permit PRT-676811 and a Type A scientific col-
<br />lecting permit from the U.S. Park Service.
<br />
<br />LITERATURE CITED
<br />
<br />..
<br />
<br />BERRY JR., C. R 1988. Effects of cold shock on Col-
<br />orado squawfish larvae. Southwest. Nat. 33:193-
<br />197.
<br />BESTGEN, K. R 1996. Growth, survival, and starvation
<br />resistance of Colorado squawfish larvae. Environ.
<br />BioI. Fish. 46:197-209.
<br />BLACK, T, AND R V. BULKLEY. 1985. Growth rate of
<br />yearling Colorado squawfish at different water tem-
<br />peratures. Southwest. Nat. 30:253-257.
<br />BURTON, D., P. ABELL, AND T CAPAZZI. 1979. Cold
<br />shock: effect of rate of thermal decrease on Atlantic
<br />menhaden. Mar. Poll. Bull. 10:347-349.
<br />CHILDS, M. R, AND R W. CLARKSON. 1996. Temper-
<br />ature effects on swimming performance of larval
<br />and juvenile Colorado squawfish: implications for
<br />survival and species recovery. Trans. Am. Fish. Soc.
<br />125:940-947.
<br />CLARKSON, R W., A. T ROBINSON, AND T L. HOFFNA-
<br />GLE. 1997. Asian tapeworm (Bothriocephalus acheil-
<br />ognathi) in native fishes from the Little Colorado
<br />River, Grand Canyon, Arizona. Great Basin Nat. 57:
<br />66-69.
<br />COUTANT, C., H. DUCHARME, AND J. FISHER. 1974. Ef-
<br />fects of cold shock on vulnerability of juvenile chan-
<br />nel catfish (ktalurns punctatus) and largemouth
<br />bass (Micropterus salmoides) to predation. J. Fish.
<br />Res. Bd. Can. 31:351-354.
<br />GRIFFITH, J. 1978. Effects of low temperature on the
<br />survival and behavior of threadfin shad. Trans. Am.
<br />Fish. SoC. 107:63-70.
<br />HAMMAN, R. L. 1982. Spawning and culture of hump-
<br />back chub. Prog. Fish-Cult. 44:213-216.
<br />HOLDEN, P. B. 1979. Ecology of riverine fishes in reg-
<br />ulated stream systems with emphasis on the Colo-
<br />rado River, p. 57-74. In: The ecology of regulated
<br />
<br />411
<br />
<br />streams. J. v. Ward and J. A. Stanford (eds.). Ple-
<br />num Press, New York.
<br />-. 1991. Ghosts of the Green River: impacts of
<br />Green River poisoning on management of native
<br />fishes, p. 43-54. In: Battle against extinction, native
<br />fish management in the American west. W. L.
<br />Minckley and]. E. Deacon (eds.). Univ. of Arizona
<br />Press, Tucson.
<br />-, AND C. B. STALNAKER. 1975. Distribution and
<br />abundance of mainstream fishes of the middle and
<br />upper Colorado River basins, 1967-1973. Trans.
<br />Am. Fish. Soc. 104:217-231.
<br />HOLM, S. 1979. A simple sequentially rejective mul-
<br />tiple test procedure. Scand.]. Stat. 6:65-70.
<br />HOUDE, E. D. 1987. Fish early life dynamics and re-
<br />cruitment variability. Am. Fish. Soc. Symp. 2:17-29.
<br />KAEDING, L. R, AND D. B. OSMUNDSON. 1988. Inter-
<br />action of slow growth and increased early-life mor-
<br />tality: an hypothesis on the decline of Colorado
<br />squawfish in the upstream regions of its historic
<br />range. Environ. BioI. Fish. 22:287-298.
<br />-, AND M. A. ZIMMERMAN. 1983. Life history and
<br />ecology of the humpback chub in the Little Colo-
<br />rado and Colorado Rivers of the Grand Canyon.
<br />Trans. Am. Fish. Soc. 112:577-594.
<br />LANIGAN, S. H., AND H. M. TYus. 1989. Population
<br />size and status of the razorback sucker in the Green
<br />River Basin, Utah and Colorado. N. Am. ]. Fish.
<br />Manag.9:68-73.
<br />MARSH, P. C. 1985. Effect of incubation temperature
<br />on survival of embryos of native Colorado River
<br />fishes. Southwest. Nat. 30:129-140.
<br />McADA, C. w., AND R S. WmosKI. 1983. Maturity and
<br />fecundity of the bluehead sucker, Catostomus disco-
<br />bolus (Catostomidae), in the Upper Colorado River
<br />Basin, 1975-1976. !lid. 28:120-123.
<br />MILLER, R R 1961. Man and the changing fish fauna
<br />of the American southwest. Pap. Mich. Acad. Sci.,
<br />Arts, Lett. XLVI:365-404.
<br />MINCKLEY, W. L. 1991. Native fishes of the Grand
<br />Canyon region: an obituary? p. 124-177. In: Colo-
<br />rado River ecology and dam management. National
<br />Academy Press, Washington, DC.
<br />-, AND G. K. MEFFE. 1987. Differential selection
<br />for native fishes by flooding in streams of the arid
<br />American Southwest, p. 93-104. In: Ecology and
<br />evolution of North American stream fish commu-
<br />nities. w.]. Matthews and D. C. Heines (eds.). Univ.
<br />of Oklahoma Press, Norman.
<br />-, D. A. HENDRICKSON, AND C. E. BOND. 1986.
<br />Geography of western North American freshwater
<br />fishes: description and relationships to intraconti-
<br />nental tectonism, p. 519-613. In: Zoogeography of
<br />North American freshwater fishes. C. H. Hocutt
<br />and E. O. Wiley (eds.).John Wiley and Sons, New
<br />York.
<br />-, D. G. BUTH, AND R L. MAYDEN. 1989. Origin
<br />of brood stock and allozyme variation in hatchery-
<br />reared bony tail, an endangered North American
<br />cyprinid fish. Trans. Am. Fish. Soc. 118:139-145.
<br />MOYLE, P. B., H. W. Li, AND B. A. BARTON. 1986. The
<br />Frankenstein effect: impact of introduced fishes on
<br />native fishes in North America, p. 415-426. In: Fish
<br />
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