Abstract
The influence ofbottom water temperature upon the dynamics of trophic relationships between prey and predator of Pacific cod was examined in the eastern Bering Sea during summers from 1979 to 1984. Pacific cod was partitioned into categories by sex and fork length. The common occurrence between small Pacific cod (male & female <30cm in fork length) and walleye pollock (male & female >51cm) was found to vary significantly with bottom temperature. Area overlaps between large Pacific cod and small walleye pollock (female <20cm), searcher, pink shrimp, rock sole, and wattled eelpout which are prey of Pacific cod were also found to have significant cor-relations with ambient temperature. This study has suggested that bottom water temperature pro-motes concurrence of species which accelerates and changes predation and competition between predator and prey populations of Pacific cod.
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