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Publications

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

Filter Total Items: 2562

Vulnerability to predation and physiological stress responses of experimentally descaled juvenile Chinook salmon, Oncorhynchus tshawytscha Vulnerability to predation and physiological stress responses of experimentally descaled juvenile Chinook salmon, Oncorhynchus tshawytscha

Juvenile salmonids,Oncorhynchus spp., commonly encounter conditions (e.g., during hatchery release and dam passage) that result in damage to the skin, scale, and slime complex. We conducted laboratory experiments to determine if descaling of juvenile chinook salmon,O. tshawytscha, increased their vulnerability to predation, and to assess the physiological stress responses elicited by...
Authors
Dena M. Gadomski, Matthew G. Mesa, Todd M. Olson

Characterization of the glycoprotein of infectious hematopoietic necrosis virus using neutralizing monoclonal antibodies Characterization of the glycoprotein of infectious hematopoietic necrosis virus using neutralizing monoclonal antibodies

To study the antigenic nature of the glycoprotein (G protein) of infectious hematopoietic necrosis virus (IHNV), 31 neutralizing monoclonal antibodies (MAbs) were produced against a reference isolate of the virus. The MAbs were compared using a neutralization assay, an enzyme-linked immunosorbent assay (ELISA), and by immunoblotting of the G protein in the native, reduced, and...
Authors
Chienjin Huang, Maw-Sheng Chien, Marsha Landolt, James Winton

The genetic diversity and epizootiology of infectious hematopoietic necrosis virus The genetic diversity and epizootiology of infectious hematopoietic necrosis virus

Infectious hematopoietic necrosis virus (IHNV) is a rhabdovirus which causes a serious disease in salmondd fish. The T1 ribonuclease fingerprinttin method was used to compare the RNA genomes of 26 isolates of IHNV recovered from sockeye salmon (Oncorhynchus nerka), chinook salmon (O. tshawytscha), and steelhead trout (O. mykiss) throughout the enzootic portion of western North America...
Authors
Kevin H. Oshima, Cindy K. Arakawa, Keith H. Higman, Marsha L. Landolt, Stuart T. Nichol, James R. Winton

Variation in mitochondrial DNA and allozymes discriminates early and late forms of Chinook salmon Oncorhynchus tshawytscha in the Kenai and Kasilof Rivers, AK Variation in mitochondrial DNA and allozymes discriminates early and late forms of Chinook salmon Oncorhynchus tshawytscha in the Kenai and Kasilof Rivers, AK

Genetic differences between early and late forms of Alaskan chinook salmon (Oncorhynchus tshawytscha) were identified using two genetic approaches: mitochondrial DNA (mtDNA) analysis, and protein electrophoresis. Study populations consisted of early and late runs in each of the Kenai and Kasilof rivers in Alaska, and a population from the Minam River, Oregon. Two segments of mtDNA were...
Authors
Noah S. Adams, William J. Spearman, Carl V. Burger, Kenneth P. Currens, Carl B. Schreck, Hiram W. Li

A microassay for gill sodium, potassium-activated ATPase in juvenile Pacific salmon A microassay for gill sodium, potassium-activated ATPase in juvenile Pacific salmon

A microassay well-plate method is described for determining Na+,K+-ATPase activities of small gill sections from juvenile Pacific salmon Oncorhynchus spp. The method differs from the established macromethod by detecting inorganic phosphate in nanomole rather than micromole concentrations. This permits the use of much smaller tissue samples, which makes it possible to release fish after...
Authors
Robin M. Schrock, John W. Beeman, Dennis W. Rondorf, Philip V. Haner

Differential predation by northern squawfish Ptychocheilus oregonensis on live and dead juvenile salmonids in the Bonneville Dam tailrace (Columbia River) Differential predation by northern squawfish Ptychocheilus oregonensis on live and dead juvenile salmonids in the Bonneville Dam tailrace (Columbia River)

Juvenile salmonids (Oncorhynchus spp.) that have been killed or injured during dam passage may be highly vulnerable or preferred prey of predators that aggregate below dams. Salmonid loss due to predation will be overestimated using gut content analysis if some prey were dead or moribund when consumed. To examine this issue, field experiments were conducted in the Bonneville Dam tailrace...
Authors
James H. Petersen, Dena M. Gadomski, Thomas P. Poe

Bacterial kidney disease Bacterial kidney disease

No abstract available
Authors
R.J. Pascho, D.G. Elliott
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