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Publications

Below is a list of available WFRC peer reviewed and published science.

Filter Total Items: 2525

Index of predation on juvenile salmonids by northern squawfish in the lower and middle Columbia River and in the lower Snake River Index of predation on juvenile salmonids by northern squawfish in the lower and middle Columbia River and in the lower Snake River

We developed a predation index to describe the relative magnitude of predation on juvenile salmonids by northern squawfish Ptychocheilus oregonensis throughout the lower and middle Columbia River and lower Snake River. The predation index was the product of an abundance index and a consumption index. We evaluated various catch indices and found that catch per unit effort best reflected...
Authors
David L. Ward, James H. Petersen, John J. Loch

Prerelease disease treatment with potassium permanganate for Fall Chinook salmon smolts Prerelease disease treatment with potassium permanganate for Fall Chinook salmon smolts

Standard potassium permanganate treatment (2 mg KMnO4/L freshwater for 1 h on three consecutive days) was applied to presmolts (parr) and smolts of fall chinook salmon (Oncorhynchus tshawytscha). Smoltification was determined by gill Na+,K+-ATPase activity. Treatments were conducted 73, 59, 45, 31, 16, and 2 d prior to full-strength seawater entry in aquaria. Potassium permanganate did...
Authors
Stanley D. Smith, Rowan W. Gould, Wally S. Zaugg, Lee W. Harrell, Conrad Mahnken

Characterization of a rhabdovirus isolated from carpione Salmo trutta carpio in Italy Characterization of a rhabdovirus isolated from carpione Salmo trutta carpio in Italy

A virus, strain 583, was isolated from carpione Salmo trutta carpio fry exhibiting high mortality. The virus was not neutralized by rabbit antisera against the fish rhabdoviruses viral haemorrhagic septicaemia virus (VHSV), infectious hematopoietic necrosis virus, eel rhabdovirus European X, spring viraemia of carp virus or pike fry rhabdovirus, or against the birnavirus infectious...
Authors
G. Bovo, N.J. Olesen, P.E.V. Jorgensen, W. Ahne, J. R. Winton

Population viability of the Snake River chinook salmon (Oncorhynchus tshawytscha) Population viability of the Snake River chinook salmon (Oncorhynchus tshawytscha)

In the presence of historical data, population viability models of intermediate complexity can be parameterized and utilized to project the consequences of various management actions for endangered species. A general stochastic population dynamics model with density feedback, age structure, and autocorrelated environmental fluctuations was constructed and parameterized for best fit over...
Authors
John M. Emlen

Columbia River Basin white sturgeon Columbia River Basin white sturgeon

White sturgeon (Acipenser transmontanus), the largest freshwater fish in North America, live along the west coast from the Aleutian Islands to central California (Scott and Crossman 1973). Genetically similar reproducing populations inhabit three major river basins: Sacramento-San Joaquin, Columbia, and Fraser. The greatest number of white sturgeon are in the Columbia River Basin.
Authors
Allen I. Miller, Timothy D. Counihan, Michael J. Parsley, Lance G. Beckman
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