Publications
USGS divers in the Elwha River
WFRC zebrafish laboratory
Processing a Lost River sucker
Below is a list of available WFRC peer reviewed and published science.
Filter Total Items: 2475
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
Use of Columbia River reservoirs for rearing by juvenile fall Chinook salmon and some management implications
No abstract available
Authors
G.A. Gray, D.W. Rondorf
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
Waste water management techniques at the United States national fish hatcheries
No abstract available
Authors
A.C. Fox
Effects of freshwater exposure to arsenic trioxide on the parr-smolt transformation of coho salmon (Oncorhynchus kisutch)
The effects of chronic (6 months) exposure to arsenic trioxide in fresh water on the Parr-smolt transformation of coho salmon (Oncorhynchus kisutch) were evaluated. Exposure to 300 μg As/L (as As2O3) appeared to delay the onset of the normal increase in plasma thyroxine concentration and cause a transient reduction of gill Na+,K+-ATPase activity. Fish exposed to 300 μg As/L also migrated to the se
Authors
J.W. Nichols, Gary Wedemeyer, F.L. Mayer, Walton W. Dickhoff, S.V. Gregory, W. T. Yasutake, S.D. Smith
Comparison of in vitro growth characteristics of ten isolates of infectious hematopoietic necrosis virus
Ten isolates of infectious haematopoietic necrosis from salmonid fishes of different locations on the West Coast of North America from California to Alaska were compared by plaque size, single-step growth curves at 15 and 18 °C, rate of appearance of cytopathic effects in cell cultures, and growth over a range of temperatures. All isolates were distinguishable on the basis of each growth character
Authors
D. Mulcahy, R.J. Pascho, C.K. Jenes
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