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: 2528
Reproduction and early life history of northern squawfish in the Columbia River Reproduction and early life history of northern squawfish in the Columbia River
No abstract available
Authors
D.M. Gadomski, A.M. Murphy
Effects of flow and smoltification on the migration rates of spring Chinook salmon and steelhead Effects of flow and smoltification on the migration rates of spring Chinook salmon and steelhead
No abstract available
Authors
J.W. Beeman, D.W. Rondorf
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
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
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
Evolution of fish rhabdoviruses Evolution of fish rhabdoviruses
No abstract available
Authors
J. R. Winton
Significance of selective predation and development of prey protection measures for juvenile salmonids in Columbia and Snake River reservoirs. Annual report 1991 Significance of selective predation and development of prey protection measures for juvenile salmonids in Columbia and Snake River reservoirs. Annual report 1991
No abstract available
Authors
T.P. Poe
Prevalence of Renibacterium salmoninarum among downstream-migrating salmonids in the Columbia River Prevalence of Renibacterium salmoninarum among downstream-migrating salmonids in the Columbia River
Bacterial kidney disease (BKD) is an important contributor to mortality of salmonids in hatcheries in the Columbia River basin. However, the impact of BKD on the survival of downstream migrants is difficult to determine because there is little information on the disease-related mortality among these fish. In this study, the impact of BKD on juvenile salmonids was examined by determining...
Authors
J. E. Sanders, J.J Long, C.K. Arakawa, J. L. Bartholomew, J. S. Rohovec
Effects of light intensity on northern squawfish capture of juvenile salmonids in the laboratory Effects of light intensity on northern squawfish capture of juvenile salmonids in the laboratory
No abstract available
Authors
J.H. Petersen, D.M. Gadomski
Cortisol measurements in fish Cortisol measurements in fish
No abstract available
Authors
Z. Janey, G. Jeney, A.G. Maule