Abstract
IT is well known that the resistance of fish to extremes of heat or cold can be markedly altered by acclimatizing them to progressively higher or lower temperatures. In an attempt to discover the mechanism involved, it became evident that several factors in addition to thermal acclimatization may alter the resistance of goldfish to extreme temperatures. Diet1 and size, sex and season2 affect the thermal resistance of goldfish maintained at a constant temperature of 20° C.
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References
Hoar, W. S., and Cottle, M. K., Can. J. Zool., 30, 41 (1952).
Hoar, W. S., Trans. Roy. Soc., Canada, V, 49, 25 (1955).
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HOAR, W. Photoperiodism and Thermal Resistance of Goldfish. Nature 178, 364–365 (1956). https://doi.org/10.1038/178364a0
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DOI: https://doi.org/10.1038/178364a0
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