Stomach Contents of Juvenile Pacific Salmon in Chatham Sound and Adjacent Waters

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Abstract
Stomach contents of young Pacific salmon in Chatham Sound and adjacent waters of northern British Columbia from June through August indicated interspecific differences in the kinds of organisms consumed. Pinks (Oncorhynchus gorbuscha) and chums (O. keta) were mainly planktophagous, copepods and Larvacea (Oikopleura spp.) being most important; cohos (O. kisutch) were piscivorous, herring larvae (Clupea spp.) and sand lance (Ammodytidae spp.) being important; sockeye (O. nerka) were mainly planktophagous but fish also were important. With pinks and chums, while they were still relatively abundant along the beaches, the dominant food item progressively changed from copepods in the southern areas to Larvacea in the northern areas.