Effect of predation by juvenile Pacific salmon on marine harpacticoid copepods. II. Predator density manipulation experiments

Abstract

Examined the impact of predation by juvenile chum Oncorhynchus keta and pink O. gorbuscha salmon on harpacticoid copepods inhabiting a shallow subtidal seagrass Zostera marina bed on Roberts Bank, British Columbia. For Harpacticus uniremis, Tisbe cf. furcata and Zaus aurelii, exclusion of large epibenthic predators had little effect on density. Total numbers and abundances of juvenile copepodites, adult males and adult females of all three species generally did not increase in the exclusion treatment relative to the control. -from Author