Upper and Lower Temperature Tolerances of Three Freshwater Game-Fish Species Exposed to Cycling Temperatures

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A total of 670 critical thermal maxima (CTMax) and minima (CTMin) were determined for three freshwater fishes acclimated to three constant temperatures and a diel regimen cycling between the lowest and highest acclimation temperatures. In all species temperature tolerance was directly related to acclimation temperature and slopes relating these variables indicate that acclimation temperature has a greater influence on tolerance of low rather than high temperatures. CTMax and CTMin values generated following exposure to 32 days of oscillating temperatures indicate that in general, fishes had temperature tolerance acclimation states consistent with the average temperature and not either the highest or ... continued below

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ix, 96 leaves: ill.

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Currie, Rebecca J. (Rebecca Jean) August 1995.

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  • Currie, Rebecca J. (Rebecca Jean)

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A total of 670 critical thermal maxima (CTMax) and minima (CTMin) were determined for three freshwater fishes acclimated to three constant temperatures and a diel regimen cycling between the lowest and highest acclimation temperatures. In all species temperature tolerance was directly related to acclimation temperature and slopes relating these variables indicate that acclimation temperature has a greater influence on tolerance of low rather than high temperatures. CTMax and CTMin values generated following exposure to 32 days of oscillating temperatures indicate that in general, fishes had temperature tolerance acclimation states consistent with the average temperature and not either the highest or lowest temperature of the diel cycle.

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ix, 96 leaves: ill.

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  • August 1995

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  • March 26, 2014, 9:30 a.m.

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  • July 2, 2014, 11:19 a.m.

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Currie, Rebecca J. (Rebecca Jean). Upper and Lower Temperature Tolerances of Three Freshwater Game-Fish Species Exposed to Cycling Temperatures, thesis, August 1995; Denton, Texas. (digital.library.unt.edu/ark:/67531/metadc279105/: accessed November 16, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; .