Skip to main content
U.S. flag

An official website of the United States government

Publications

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

Filter Total Items: 2488

Appearance and quantification of infectious hematopoietic necrosis virus in female sockeye salmon (Oncorhynchus nerka) during their spawning migration

The incidence and amount of infectious hematopoietic necrosis (IHN) virus was determined in 10 organs and body fluids from each of 100 female sockeye salmon(Oncorhynchus nerka) before, during, and after their spawning migration into freshwater. Virus was found in high concentrations only in fish sampled during and after spawning. Infection rates increased from nil to 100 percent within 2 weeks. In
Authors
D. Mulcahy, C.K. Jenes, R.J. Pascho

Disease caused by environmental stressors

The use of the terms 'stress' and 'stressor' is sometimes inconsistent (e.g., Pickering, 1981). The term 'stressor' should be used to describe environmental or other factor intensities severe enough to require a compensatory response at any level of biological organization. A stressor is normally extrinsic. The term 'stress' indicates the organismic response initiated by the stressor, also at any
Authors
Gary Wedemeyer, C.P. Goodyear

Adsorption to fish sperm of vertically transmitted fish viruses

More than 99 percent of a vertically transmitted fish rhabdovirus, infectious hematopoietic necrosis virus, was removed from suspension in less than 1 minute by adsorption to the surface membrane of sperm from two genera of salmonid fishes. The vertically transmitted, infectious pancreatic necrosis virus adsorbed to a lesser degree, but no adsorption occurred with a second fish rhabdovirus that is
Authors
D. Mulcahy, R.J. Pascho

Assessing the tolerance of fish and fish populations to environmental stress: The problems and methods of monitoring

Environmental stress is an inescapable aspect of life in the aquatic environment. The chemical and physical demands of life underwater impose somewhat rigorous constraints on aquatic species (Smith, 1982a). Superimposed on such demands may be the additional. physiological constraints of particular ecological niches. It is true that aquatic species are adapted to these conditions, but this does not
Authors
Gary Wedemeyer, D. McLeay, C.P. Goodyear

Effects of hydropower development on Columbia River salmonids

No abstract available
Authors
D.W. Rondorf, G.A. Gray, W.R. Nelson

Preliminary evaluation of predation control measures for major predators in the Columbia River

No abstract available 
Authors
P.T. Lofy, S.D. Duke, M.J. Parsley, M.G. Mesa, G.M. Sonneville, L.A. Prendergast

Feeding activity, rate of consumption, daily ration, and prey selection of major predators in the John Day Pool

No abstract available 
Authors
G.A. Gray, D.E. Palmer, B.L. Hilton, P.J. Connolly, H.C. Hansel, J.M. Beyer, P.T. Lofty, G.M. Sonnevil