Synopsis
The longitudinal distribution ofSalmo trutta andGalaxias olidus, a small salmoniform fish, was mapped over four summers (1985–1988) in the upper reaches of the Lerderderg River, an intermittent stream in central Victoria. Over the four successive summers of the study, the distribution ofS. trutta expanded upstream. Coincident with the expansion ofS. trutta was a contraction in the distribution ofG. olidus upstream. In the summer of 1988, an extended dry spell resulted in high levels ofS. trutta mortality at the upstream limits of their distribution. This suggested that the upstream distribution ofS. trutta could ultimately be constrained by an inability to tolerate prolonged periods of low stream flow and high temperatures that tended to occur in the headwaters of the stream. A study of summer mortality was conducted over three successive summers (1989–1991) at three reaches along the river. The two downstream reaches contained onlyS. trutta, the upstream reach contained bothS. trutta andG. olidus. Salmo trutta mortality was consistently higher at the most upstream reach compared with lower reaches. High levels ofS. trutta mortality at the two downstream reaches were only observed in 1991, a particularly dry year. In contrast,G. olidus survived in scattered small pools throughout the upper reaches of the stream. The results of the study suggest a shifting pattern ofS. trutta andG. olidus distribution determined by the duration of low stream flow periods and summer high temperatures.
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References cited
Angermeier, P.L. 1987. Spatiotemporal variation in habitat selection by fishes in small Illinois strems, pp. 52–60. In: W.J. Matthews & D.C. Heins (ed.) Community and Evolutionary Ecology of North American Stream Fishes, University of Oklahoma Press, Norman.
Baltz, D.M. & P.B. Moyle. 1993. Invasion resistance to introduced species by a native assemblage of California stream fishes. Ecological Applications 3: 246–255.
Bayley, P.B. & H.W. Li 1992. Riverine fishes. pp. 251–281. In: P. Calow & G.E. Petts (ed.) The Rivers Handbook. Volume 1. Blackwell Scientific Publications, Oxford.
Beumer, J.P. & D.J. Harrington. 1980. Pre-impoundment distribution of fishes in the Lerderderg River, Victoria. Victorian Naturalist 97: 68–72.
Boulton, A.J. 1988. Composition and dynamics of macroinvertebrate communities in two intermittent streams. Ph.D. Thesis. Department of Zoology, Monash University, Melbourne. 405 pp.
Boulton. A.J. & P.S. Lake. 1990. The ecology of two intermittent streams in Victoria. Australia. I. Multivariate analysis of physicochemical features. Freshw. Biol. 24: 123–141.
Cadwallader, P.L. & G.N. Backhouse. 1983. A guide to freshwater fish of Victoria. Victorian Government Printing Office. Melbourne. 249 pp.
Closs, G.P. 1991. Food web structure and stability intermittent stream. Ph.D. Thesis. Department of Ecology and Evolutionary Biology, Monash University, Melbourne, 234 pp.
Closs, G.P. 1994. Feeding ofGalaxias olidus Gunther (Pisces: Galaxiidae) in an intermittent Australian stream. Aust. J. Mar. Freshwater Res. 45: 227–232.
Closs. G.P. 1996. Effects of a predatory fish (Galaxias olidus) on the structure of intermittent stream pool communities in south east Australia. Aust. J. Ecol. 21(2):(in press).
Coon, T.G. 1987. Responses of benthic riffle fishes to variation in stream discharge and temperature. pp. 77–85. In: W.J. Matthews & D.C. Heins (ed.) Community and Evolutionary Ecology of North American Stream Fishes, University of Oklahoma Press, Norman.
Crowl. T.A., C.R. Townsend & A.R. McIntosh. 1992. The impact of introduced brown and rainbow trout on native fish: the case of Australasia. Rev. Fish. Biol. Fisheries 2: 217–241.
Elliot. J.M. 1994. Quantitative ecology and the brown trout. Oxford University Press, Oxford. 286 pp.
Erman, D.C., E.D. Andrews & M. Yoder-Williams. 1988. Effects of winter floods on fishes in the Sierra Nevada. Can. J. Fish. Ayuat. Sci. 45: 2195–2200.
Fletcher, A.R. 1979. Effects ofSalmo trutta onGalaxias olidus and macroinvertebrates in stream communities. M.Sc. Thesis, Zoology Department, Monash University, Melbourne. 179 pp.
Fletcher, A.R. 1986. Effects of introduced fish in Australia. pp. 231–238. In: P. DeDecker & W.D. Williams (ed.) Limnology in Australia, Commonwealth Scientific and Industrial Research Organisation/Dr W. Junk Publishers, Melbourne.
Gatz, Jr. A.J.. M.J. Sale & J.M. Loar. 1987. Habitat shifts in rainbow trout: competitive influences of brown trout. Oecologia 74: 7–19.
Gilliam, J.F. D.F. Fraser & M. Alkins-Koo. 1993. Structure of a tropical stream fish community: a role for biotic interactions. Ecology 74: 1856–1870.
Horwitz, R.J. 1978. Temporal variability patterns and the distributional patterns of stream fishes. Ecol. Monogr. 48: 307–321.
Jackson. P.D. & W.D. Williams. 1980. Effects of brown trout,Salmo trutta L., on the distribution of some native fishes in three areas of southern Victoria. Aust. J. Mar. Freshwater Res. 31: 61–67.
Jackson. P.D. & J.N. Davies. 1983. Survey of the fish fauna in the Grampians region. south-western Victoria. Proc. R. Soc. Vict. 95: 39–51.
Kozel. S.J. & W.A. Hubert. 1989. Factors influencing the abundance of brook trout (Salvelinus fontinalis) in forested mountain streams. J. Freshw. Ecol. 5: 113–122.
Larimore. R.W., W.F. Childers & C. Heckrotte. 1959. Destruction and re-establishment of stream fish and invertebrates affected by drought. Trans. Amer. Fish. Soc. 88: 261–285.
Lemly, A.D. 1985. Suppression of native fish populations by green sunfish in first-order streams of Piedmont, North Carolina. Trans. Amer. Fish. Soc. 114: 705–712.
Lowe, C.H.. D.S. Hinds & E.A. Halpern. 1967. Experimental catastrophic selection and tolerances to low oxygen concentration in native Arizona freshwater fishes. Ecology 48: 1013–1017.
MacCrimmon, H.R. & T.L. Marshall. 1968. World distribution of brown trout,Salmo trutta. J. Fish. Res. Board Can. 25: 2527–2548.
Matthews, W.J. 1987. Physicochemical tolerance and selectivity of stream fishes are related to their geographic ranges and local distributions. pp. 111–120. In: W.J. Matthews & D.C. Heins (ed.) Community and Evolutionary Ecology of North American Stream Fishes, University of Oklahoma Press, Norman.
Matthews, W.J. & J.D. Maness. 1979. Critical thermal maxima, oxygen tolerances and success of cyprinid fishes in a southwestern river. Amer. Midl. Nat. 102: 374–377.
Matthews, W.J. & J.T. Styron. 1981. Tolerance of headwater vs. mainstream fishes for abrupt physicochemical changes. Amer. Midl. Nat. 105: 149–158.
Matthews, W.J., J.R. Beck & E. Surat. 1982. Comparative ecology of the dartersEtheostoma podostemone, E. flabellare, andPercina roanoka in the upper Roanoke River drainage, Virginia. Copeia 1982: 805–814.
McDowall, R.M. 1990. When galaxiid and salmonid fishes meet — a family reunion in New Zealand. J. Fish Biol. 37 (Supplement A): 35–43.
McIntosh, A.R., C.R. Townsend & T.A. Crowl. 1992. Competition for space between introduced brown trout (Salmo trutta L.) and a native galaxiid (Galaxias vulgaris Stokel) in a New Zealand stream. J. Fish Biol. 41: 63–81.
Meador, M.R. & W.J. Matthews. 1992. Spatial and temporal patterns in fish assemblage structure of an intermittent Texas stream. Amer. Midl. Nat. 127: 106–114.
Meffe, G.K. 1984. Effects of abiotic disturbance on coexistence of predator-prey fish species. Ecology 65: 1525–1534.
Meffe, G.K. & W.L. Minckley. 1987. Persistence and stability of fish and invertebrate assemblages in a repeatedly disturbed Sonoran desert stream. Amer. Midl. Nat. 117: 177–191.
Peckarsky, B.L. 1983. Biotic interactions or abiotic limitations? A model of lotic community structure. pp. 303–323. In: T.D. Fontaine & S.M. Bartell (ed.) Dynamics of Lotic Ecosystems, Ann Arbor Scientific Publications, Ann Arbor.
Pimm, S.L. 1991. The balance of nature. University of Chicago Press, Chicago. 434 pp.
Rahel, E.J. & W.A. Hubert. 1991. Fish assemblages and habitat gradients in a Rocky Mountain-Great Plains stream: biotic zonation and additive patterns of community change. Trans. Amer. Fish. Soc. 120: 319–332.
Rincon, P.A., J.C. Velasco, N. Gonzalez-Sanchez & C. Pollo. 1990. Fish assemblages in small stream in western Spain: the influence of an introduced predator. Arch. Hydrobiologie 118: 81–91.
Ross, S.T, W.J. Matthews & A.A. Echelle. 1985. Persistence of stream fish assemblages: effects of environmental change. Amer. Nat. 126: 24–40.
Ross, S.T. 1991. Mechanisms structuring stream fish assemblages: are there lessons from introduced species? Env. Biol. Fish. 30: 359–368.
Schlosser, I.J. 1982. Fish community structure and function along two habitat gradients in a headwater stream. Ecol. Monogr. 52: 395–414.
Schosser, I.J. 1987. A conceptual framework for fish communities in small warmwater streams. pp. 17–24 In: W.J. Matthews & D.C. Heins (ed.) Community and Evolutionary Ecology of North American Stream Fishes, University of Oklahoma Press, Norman.
Schoener, T.W. 1987. Axes of controversy in community ecology. pp. 8–16. In: W.J. Matthews & D.C. Heins (ed.) Community and Evolutionary Ecology of North American Stream Fishes, University of Oklahoma Press, Norman, Oklahoma.
Tilzey, R.D.J. 1976. Observations on interactions between indigenous Galaxiidae and introduced Salmonidae in the Lake Eucumbene catchment, New South Wales. Aust. J. Mar. Freshwater Res. 27: 551–564.
Tilzey, R.D.J. 1977. Key factors in the establishment and success of trout in Australia. Proc. Ecol. Soc. Aust. 10: 97–105.
Townsend, C.R. & T.A. Crowl. 1991. Fragmented population structure in a native New Zealand fish: an effect of introduced brown trout? Oikos 61: 347–354.
Tramer, E.J. 1977. Catastrophic mortality of stream fishes trapped in shrinking pools. Amer. Midl. Nat. 97: 469–478.
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Closs, G.E., Lake, P.S. Drought, differential mortality and the coexistence of a native and an introduced fish species in a south east Australian intermittent stream. Environ Biol Fish 47, 17–26 (1996). https://doi.org/10.1007/BF00002376
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DOI: https://doi.org/10.1007/BF00002376