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Publications

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

Filter Total Items: 2488

The effects of incidental electrofishing on adult spring Chinook salmon

No abstract available 
Authors
S.D. Smith, A.G. Maule, T.P. Poe

Movements and distribution of radio-tagged northern squawfish near The Dalles Dam. Annual report 1992

No abstract available 
Authors
R.S. Shively, S.R. Hirtzel, L.L. Mann, T.L. McGuire, G. Holmberg

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 amplified u
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 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 sampling. U
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)

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 (Columbia
Authors
James H. Petersen, Dena M. Gadomski, Thomas P. Poe

Importance of spatial pattern in estimating predation on juvenile salmonids in the Columbia River

The impact of piscivores in aquatic systems is often estimated by assuming that predation rate and predator density can be characterized as means throughout large, homogeneous areas. Predation losses of juvenile Pacific salmonids Oncorhynchus spp. migrating through Columbia River reservoirs were previously estimated with the assumption that each reservoir consisted of one or two homogeneous areas.
Authors
James H. Petersen

Bacterial kidney disease

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

White sturgeon spawning and rearing habitat in the lower Columbia River

Estimates of spawning habitat for white sturgeons Acipenser transmontanus in the tailraces of the four dams on the lower 470 km of the Columbia River were obtained by using the Physical Habitat Simulation System of the U.S. Fish and Wildlife Service's Instream Flow Incremental Methodology to identify areas with suitable water depths, water velocities, and substrates. Rearing habitat throughout the
Authors
Michael J. Parsley, Lance G. Beckman