<br />208
<br />
<br />ment patterns of Colorado squawfish in regulated
<br />rivers of the Colorado River Basin.
<br />
<br />Acknowledgements
<br />
<br />Research funding was provided by the U.S. Bureau
<br />of Reclamation, Salt Lake City, Utah under Coop-
<br />erative agreement 8-FC-40-06460 with the Larval
<br />Fish Laboratory (LFL), Colorado State University,
<br />and by the Recovery Implementation Program of
<br />the Upper Colorado River Basin. Project adminis-
<br />tration was facilitated by R. Williams, L. Crist, and
<br />R. Muth. Fish embryos were provided by Dexter
<br />National Fish Hatchery and Technology Center,
<br />U.S. Fish and Wildlife Service. The laboratory as-
<br />sistance of H. Tillquist, G. Bestgen, J. Bundy, and
<br />M. Williams is appreciated. The manuscript bene-
<br />fitted from reviews by D. Anderson, D. Beyers, W.
<br />Clements, K. Fausch, R. Muth, J. Rice, and J. Ward
<br />and anonymous referees, and Anderson suggested
<br />the response surface analysis. Advice of G. White
<br />regarding data analysis is appreciated. This paper is
<br />LFL contribution 70.
<br />
<br />References cited
<br />
<br />Anderson, D.R, KP, Burnham & G,c. White. 1994, AIC model
<br />selection in overdispersed capture-recapture data. Ecology
<br />75: 1780-1793.
<br />Bestgen, KR & M.A. Williams. 1994. Effects of fluctuating and
<br />constant temperatures on early development and survival of
<br />Colorado squawfish. Trans, Amer. Fish, Soc, 123: 574-579.
<br />Black, T & RY. Bulkley, 1985, Growth rate of yearling Colorado
<br />squawfish at different temperatures. Southw, Nat. 30: 253-
<br />258,
<br />Blinn, D.W" J,P, Shannon, L.E. Stevens & J.P. Carder. 1995, Con-
<br />sequences of fluctuating discharge for lotic communities, J,N,
<br />Amer. Benth. Soc, 14: 233-248,
<br />Box, G.E.P. & N,R Draper. 1987, Empirical model-building and
<br />response surfaces. John Wiley & Sons, New York. 669 pp,
<br />Carlson, c.A. & R T. Muth.1989. The Colorado River: lifeline of
<br />the American Southwest pp. 220-239, In: D,P' Dodge (ed,)
<br />Proceedings of the International Large River Symposium, Ca-
<br />nad. Spec. PubL in Fish. and Aquat Sci. 106,
<br />Clancy, KM, & RM, King, 1993, Defining the western spruce
<br />budworm's nutritional niche with response surface methodol-
<br />ogy. Ecology 74: 442-454.
<br />Crowder, L.W, J,A. Rice, T.1, Miller & E.A. Marschall. 1992.
<br />
<br />Empirical and theoretical approaches to size-based interac-
<br />tions and recruitment variability in fishes, pp,237-255, In:
<br />D.L. DeAngelis & L.J, Gross (ed.) Individual-Based Models
<br />and Approaches in Ecology, Chapman and Hall, New York.
<br />Dill, WA. 1944, The fishery of the lower Colorado River. Calif.
<br />Fish and Game 30: 109-211.
<br />Hamman, RL. 1981. Spawning and culture of Colorado squaw-
<br />fish in raceways, Prog. Fish-Cult. 43: 173-177.
<br />Hamman, RL.1989, Survival of Colorado squawfish cultured in
<br />earthen ponds, Prog, Fish-Cult 51: 27-29,
<br />Holden, P,B,1979. Ecology of riverine fishes in regulated stream
<br />systems with emphasis on the Colorado River. pp, 57-74, In:
<br />J,v. Ward & J.A. Stanford (ed.) The Ecology of Regulated
<br />Streams, Plenum Press, New York.
<br />Houde, E.D, 1987. Fish early life dynamics and recruitment vari-
<br />ability, Amer. Fish, Soc, Sym, 2: 17-29,
<br />Kaeding, L.R, & D.B, Osmundson. 1988. Interaction of slow
<br />growth and increased early life mortality: an hypothesis on the
<br />decline of Colorado squawfish in upstream regions of its his-
<br />toric range. Env, BioI. Fish. 22: 287-298.
<br />Magnuson, J.1" L.B, Crowder & P.A. Medvick. 1979, Temper-
<br />ature as an ecological resource, Amer. ZooL 19: 331-343,
<br />McCauley, RW & N.W Huggins, 1979. Ontogenetic and non-
<br />thermal seasonal effects on thermal preferenda of fish. Amer.
<br />ZooL 19: 267-271.
<br />Miller, RR 1961. Man and the changing fish fauna of the Amer-
<br />ican Southwest. Pap, Mich. Acad, Sci., Arts, and Letters 46:
<br />365-404,
<br />Miller, TJ., L.B, Crowder, J,A. Rice & EA, Marschall. 1988,
<br />Larval size and recruitment mechanisms in fishes: toward a
<br />conceptual framework, Can, J, Fish, Aquat Sci. 45: 1657-1670,
<br />Nesler, TP., R.T. Muth & A. Wasowicz.1988, Evidence for base-
<br />line flow spikes as spawning cues for Colorado squawfish in
<br />the Yampa River, Colorado. Amer. Fish, Soc, Sym, 5: 68-79,
<br />Ott, L. 1988, An introduction to statistical methods and data
<br />analysis, 3rd edition. PWS-Kent Publishing Co" Boston.
<br />835 pp,
<br />Papoulias, D. & WL. Minckley, 1990. Food limited survival of
<br />razorback sucker, Xyrauchen texanus, in the laboratory, Env,
<br />BioI. Fish, 29: 73-78,
<br />Platania, S,P" KR Bestgen, M.A. Moretti, D.L. Propst & J,E.
<br />Brooks. 1991. Status of Colorado squawfish and razorback
<br />sucker in the San Juan River, Colorado, New Mexico, and
<br />Utah. Southw. Nat 36: 147-150,
<br />Rice, J,A., TJ, Miller, KA. Rose, L.B, Crowder, E.A. Marschall,
<br />A.S. Trebitz & D,L. DeAngelis. 1993, Growth rate variation
<br />and larval survival: inferences from an individual-based size-
<br />dependent predation model. Can. J, Fish, Aquat Sci, 50: 133-
<br />142,
<br />Scholz, P.M" D. Edwards, J,M, Dean & RC. Palm, Jr.1994, Use
<br />of a quadratic response model to estimate optimum combina-
<br />tions of nutritional variables. Trans, Amer. Fish, Sac, 123: 266-
<br />272.
<br />SAS Institute, Inc, 1988. SAS-STAT Users Guide, Release 6,03
<br />Edition, Cary, 1028 pp,
<br />SAS Institute, Inc.1993, SAS technical report P-243, SAS/STAT
<br />
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