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Explores the complex web of interactions between the salmon of the Pacific Northwest and the surrounding ecosystem, including its relationship with streambeds, treetops, sea urchins, bears, orcas, rain forests, kelp forests and so much more, in a book with 70 full-color photos.
Contains annual financial report, reports of schools, departments, committees, other administrative offices, and publications of the faculty.
This bibliography on reservoir fishery biology comprises 1,210 references under 14 general subject headings. Within subject categories, citations are arranged alphabetically by authors, without cross-indexing or multiple iisting. The references include many graduate theses and dissertations, mimeographed State fishery agency administrative reports, and Federal Aid job completion reports concerning reservoirs.
Growth, reproduction, food habits, and parasites of pile perch were investigated in Yaquina Bay, Oregon between April 1966 and July 1967. The research disclosed that pile perch live at least 10 years. Males and females of given ages are close to the same size up to age IV, after which females are increasingly larger than males. The diet varies between seasons and localities. Pile perch are carnivorous feeders, obtaining food from the bottom or protruding surfaces in the littoral zone. Principal foods are barnacles, mussels, the bay clams, crabs, mud shrimp and tube dwelling amphipod. None of the pile perch examined was heavily parasitized. Infestations of gill copepods vary seasonally.