Calanoid and cyclopoid copepods from nearshore epibenthic sled samples taken at Campbell River estuary and Discovery Passage in 1982 / by T.J. Brown, C.D. McAllister, and B.A. Kask.: Fs97-4/1935E-PDF

"One hundred forty-six epibenthic sled samples were collected from 18 sites in the Campbell River estuary and Discovery Passage. The calanoid and cyclopoid copepods in the estuarine samples were dominated by Cyclops sq. Unidentified copepodites and Pseudocalanus minutus appeared numerically dominant in the few samples from the transition zone while unidentified copepodites and Cyclopina gracilis were dominant in the marine zone. The examination of 164 wild and 191 hatchery chinook stomachs indicated a seasonal preference for calanoids which ended in June. The loss of calanoids as a major dietary item for juvenile chinook corresponded to the disappearance of Neocalanus plumchrus from the marine zone sled samples. This is in accordance with Neocalanus plumchrus' life cycle in which the stage V copepodites migrate to deeper water in June and July"--Abstract, page vi.

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