Abstract
The organisms found on seven dates in the stomachs of two cottids (Oligocottus maculosus and O. snyderi) cohabiting four rocky tide pools on the west coast of Vancouver Island were the same except for one minor item. Quantitatively, a number of differences were present. For the major food items, the interspecific differences in relative composition of the diets were greatest for amphipods and copepods. Lesser differences are seen for annelids, isopods, and chironomid larvae. However, these were more likely a reflection of differences in microhabitat and behavior rather than interspecific competition for food.
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