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Publications

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

Filter Total Items: 2562

Effects of multiple acute stressors on the predator avoidance ability and physiology of juvenile Chinook salmon Effects of multiple acute stressors on the predator avoidance ability and physiology of juvenile Chinook salmon

Northern squaw fish Ptychocheilus oregonensis are the predominant predators of juvenile Pacific salmonids Oncorhynchus spp. in the Columbia River, and their predation rates are greatest just below dams. Because juvenile salmonids are commonly subjected to multiple stressors at dams in the course of their seaward migration, high predation rates below dams may be due in part to an increase...
Authors
Matthew G. Mesa

Association of viral hemorrhagic septicemia virus with epizootic hemorrhages of the skin in Pacific herring Clupea harengus pallasi from Prince William Sound and Kodiak Island, Alaska, USA Association of viral hemorrhagic septicemia virus with epizootic hemorrhages of the skin in Pacific herring Clupea harengus pallasi from Prince William Sound and Kodiak Island, Alaska, USA

Only one-third of the Pacific hernng Clupea harengus pallasi expected to spawn in Prince William Sound (PWS), Alaska, USA, in sprlng 1993 were observed. Of these herring, 15 to 43 '% had external ulcers or subdermal hemorrhages of the skln and fins. A rhabdovirus identified as the North American strain of viral hemorrhagic septicemia virus (VHSV) was isolated from affected herring and 1...
Authors
T.R. Meyers, S. Short, K. Lipson, W.N. Batts, J. R. Winton, J. Wilcock, E. Brown

Developmental instability as an indicator of natural stress on the Pacific Hake (Merlussius productus) Developmental instability as an indicator of natural stress on the Pacific Hake (Merlussius productus)

Developmental lnstability (DI) has been proposed as an inexpensive, quickly applied, and sensitive indicator of stress that can be utilized in early warning and in monitoring anthropogenic impacts on fish and other animals and plants. A problem arises, however, to the extent that natural stressors confound the effects of human-induced disturbances. Our objective in this work was to...
Authors
C.L. Alados, J. Escos, J.M. Emlen

Efficacy of electrofishing to assess plasma cortisol concentration in juvenile chinook salmon passing hydroelectric dams on the Columbia River Efficacy of electrofishing to assess plasma cortisol concentration in juvenile chinook salmon passing hydroelectric dams on the Columbia River

We tested the efficacy of using electrofishing to collect juvenile fall chinook salmon Oncorhynchus tshawytschato assess their plasma cortisol concentrations. In laboratory experiments, plasma cortisol titers offish sampled immediately (
Authors
Alec G. Maule, Matthew G. Mesa
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