Abstract
Abstract Temperature preferences of four fish species were studied in an electronic thermoregulatory shuttlebox. The modal temperature preferences (final preferenda) of the four species were: black crappie (Pomoxis nigromaculatus), 24°C; carp (Cyprinus carpio), 29°C; chain pickerel (Esox niger), 24°C; and pumpkinseed (Lepomis gibbosus), 26°C. The species differed in thermoregulatory precision as well as in final preferred temperature, indicating the species-specific nature of thermal behavior. There was little intraspecific variation among individuals tested. The results agree well with those of other investigators using different methods and apparatus.
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