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: 2517
In vitro infection of salmonid epidermal tissues by infectious hematopoietic necrosis virus and viral hemorrhagic septicemia virus In vitro infection of salmonid epidermal tissues by infectious hematopoietic necrosis virus and viral hemorrhagic septicemia virus
The ability of two rhabdoviruses, infectious hematopoietic necrosis virus (IHNV) and viral hemorrhagic septicemia virus (VHSV), to infect fish skin was investigated by in vitro infection of excised tissues. Virus replication was determined by plaque assay of homogenized tissue extracts, and the virus antigen was detected by immunohistology of tissue sections. Gill, fin, and ventral...
Authors
T. Yamamoto, W.N. Batts, J. R. Winton
Northern squawfish predation on live and dead juvenile salmonids in the Bonneville Dam tailrace Northern squawfish predation on live and dead juvenile salmonids in the Bonneville Dam tailrace
No abstract available
Authors
J.H. Petersen, D.M. Gadomski, T.P. Poe
Fabrication of stainless steel spherical anodes for use with boat-mounted boom electroshocker Fabrication of stainless steel spherical anodes for use with boat-mounted boom electroshocker
A frugal method of fabricating spherical anodes from stainless steel mixing bowls is presented. We believe that the purported mechanical disadvantages of using spherical electrodes are largely unfounded.
Authors
Patrick J. Martinez, Kenneth F. Tiffan
Predation by northern squawfish on live and dead juvenile Chinook salmon Predation by northern squawfish on live and dead juvenile Chinook salmon
Northern squafish Ptychocheilus oregonensis is a major predator of juvenile salmonids Oncorhynchus spp. migrating downstream through the Columbia River. High predation rates occur just below dams. If northern squafish selectively consume salmonids killed or injured during dam passage, previous estimates of predation mortality may be too high. We conducted laboratory experiments that...
Authors
Dena M. Gadomski, Judy A. Hall-Griswold
Physiological and hematological changes in Chum Salmon artificially infected with Erythrocytic Necrosis virus Physiological and hematological changes in Chum Salmon artificially infected with Erythrocytic Necrosis virus
Chum salmon Oncorhynchus keta were injected with erythrocytic necrosis virus (ENV) to study the physiological and hematological consequences of ENV infection. Infected and control fish were held in pathogen-free seawater and sampled for 5 weeks. Physiological tests included measures of plasma cortisol, glucose, protein, and osmolality; blood lactic acid; and liver glycogen. In general...
Authors
D. C. Haney, D.A. Hursh, M.C. Mix, J. R. Winton
Functional response and capture timing in an individual-based model: predation by northern squawfish (Ptychocheilus oregonensis) on juvenile salmonids in the Columbia River Functional response and capture timing in an individual-based model: predation by northern squawfish (Ptychocheilus oregonensis) on juvenile salmonids in the Columbia River
The behavior of individual northern squawfish (Ptychocheilus oregonensis) preying on juvenile salmonids was modeled to address questions about capture rate and the timing of prey captures (random versus contagious). Prey density, predator weight, prey weight, temperature, and diel feeding pattern were first incorporated into predation equations analogous to Holling Type 2 and Type 3...
Authors
James H. Petersen, Donald L. DeAngelis
Predation by northern squawfish on live versus dead juvenile salmonids Predation by northern squawfish on live versus dead juvenile salmonids
No abstract available
Authors
D.M. Gadomski, J.A. Hall-Griswold
Genetic variation in steelhead of Oregon and northern California Genetic variation in steelhead of Oregon and northern California
Steelhead Oncorhynchus mykiss from various sites between the Columbia River and the Mad River, California, were genetically characterized at 10 protein-coding loci or pairs of loci by starch gel electrophoresis. Fish from coastal streams differed from fish east of the Cascade Mountains and from fish of the Willamette River (a tributary of the Columbia River, west of the Cascade Mountains...
Authors
R.R. Reisenbichler, J.D. McIntyre, M.F. Solazzi, S.W Landino