Beach and purse seine sampling of juvenile salmonids in the Columbia River estuary and ocean plume, 1977-1983 : volume I, procedures, sampling effort, and catch data

Procedures for beach and purse seine sampling of juvenile salmon, Oncorhynchus spp., and steelhead, Salmo gairdneri, in the Columbia River estuary and ocean plume are described. Sampling effort and catch data from 1977 through 1983 are listed and summarized. Included are data summarizing fork lengths of each salmonid species, catches of species incidental to the program, water temperatures, and river flow. 1985 NMFS (National Marine Fisheries Service) NWFSC (Northwest Fisheries Science Center) AFSC (Alaska Fisheries Science Center) Library Public Domain 1864