Effects of Cold Shock on Vulnerability of Juvenile Channel Catfish (Ictalurus punctatus) and Largemouth Bass (Micropterus salmoides) to Predation

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Abstract
Acute cold stress caused increased predation on juvenile channel catfish (Ictalurus punctatus) and largemouth bass (Micropterus salmoides) by unstressed adult largemouth bass when temperature differentials were 9 and 7 C or more, respectively, (base temperatures 16 and 17 C). Predation rate tended to increase exponentially with increasing temperature differential. Catfish held 1 h in the cold water were only slightly less susceptible to predation than were others tested immediately after the temperature change.