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
A method to directly measure maximum volume of fish stomachs or digestive tracts A method to directly measure maximum volume of fish stomachs or digestive tracts
A new method for measuring maximum stomach or digestive tract volume of fish incorporates air injection at constant pressure with water displacement to measure directly the internal volume of a stomach or analogous structure. The method was tested with coho salmon, Oncorhynchus kisutch (Walbaum), which has a true stomach, and northern squawfish, Ptychocheilus oregonensis(Richardson)...
Authors
C.C. Burley, S. Vigg
Picornaviruses and reoviruses of fishes Picornaviruses and reoviruses of fishes
The number of fish viruses isolated in cell culture or observed by electron microscopy continues to increase rapidly. Until recently, most viruses that were isolated from finfish and characterized were found to be members of the Rhabdoviridae, Iridoviridae, or Herpesviridae (Wolf and Mann 1980). In a comprehensive review of fish viruses published in 1984, there were no picornaviruses and...
Authors
J. R. Winton
Status and habitat requirements of white sturgeon populations in the Columbia River downstream from McNary Dam Status and habitat requirements of white sturgeon populations in the Columbia River downstream from McNary Dam
No abstract available
Authors
M.J. Parsley, S.D. Duke, T.J. Underwood, L.G. Beckman
Advanced methods for prevention of infectious diseases in aquaculture Advanced methods for prevention of infectious diseases in aquaculture
No abstract available
Authors
W. Ahne, J. R. Winton
Electrofishing mark-recapture and depletion methodologies evoke behavioral and physiological changes in cutthroat trout Electrofishing mark-recapture and depletion methodologies evoke behavioral and physiological changes in cutthroat trout
We examined the behavioral and physiological responses of wild and hatchery-reared cutthroat trout Oncorhynchus clarki subjected to a single electroshock, electroshock plus marking, and multiple electroshocks in natural and artificial streams. In a natural stream, cutthroat trout released after capture by electrofishing and marking showed distinct behavioral changes: fish immediately...
Authors
M. G. Mesa, C.B. Schreck
Isolation of a reovirus from coho salmon (Oncorhynchus kisutch) in Oregon, USA Isolation of a reovirus from coho salmon (Oncorhynchus kisutch) in Oregon, USA
Reoviruses isolated from aquatic animals share certain common characteristics: (1) a typical reovirus-like morphology which shows an icosahedral particle with a double capsid that is approximately 75 nm in diameter; (2) a genome with eleven segments of double-stranded RNA (dsRNA) distributed as three large, three medium and five small segments with a total molecular weight of...
Authors
J. R. Winton, C.N. Arakawa, C.N. Lannan, J. L. Fryer
Terrestrial population models for ecological risk assessment: A state-of-the-art review Terrestrial population models for ecological risk assessment: A state-of-the-art review
Few attempts have been made to formulate models for predicting impacts of xenobiotic chemicals on wildlife populations. However, considerable effort has been invested in wildlife optimal exploitation models. Because death from intoxication has a similar effect on population dynamics as death by harvesting, these management models are applicable to ecological risk assessment. An...
Authors
J.M. Emlen
Prevention of infectious diseases in aquaculture Prevention of infectious diseases in aquaculture
Infectious diseases remain one of the most important limitations to the successful propagation of aquatic animals. Most of the losses caused by pathogens in aquaculture could be prevented by health inspection, adequate environment and sound management practices. Effective control measures, mainly based upon 1) avoidance of pathogens 2) modification of the environment 3) improvement of...
Authors
W. Ahne, J. R. Winton, T. Kimura
Characterization of the host response to the myxosporean parasite, Ceratomyxa shasta (Noble), by histology, scanning electron microscopy, and immunological techniques Characterization of the host response to the myxosporean parasite, Ceratomyxa shasta (Noble), by histology, scanning electron microscopy, and immunological techniques
The tissue response of Salmo gairdneri Richardson, against the myxosporean parasite. Ceratomyxa shasta (Noble), was investigated using histological techniques, scanning electron microscopy and immunological methods. The progress of infection in C. shasta‐susceptible and resistant steelhead and rainbow trout was examined by standard histological techniques and by indirect fluorescent...
Authors
J. L. Bartholomew, C. E. Smith, J. S. Rohovec, J. L. Fryer
Genetic variation in steelhead (Salmo gairdneri) from the north coast of Washington Genetic variation in steelhead (Salmo gairdneri) from the north coast of Washington
Steelhead (Salmo gairdneri) collected from various sites in nine drainages in northwestern Washington were genetically characterized at 65 protein-coding loci by starch-gel electrophoresis. Genetic differentiation within and among drainages was not significant, and genetic variation among drainages was much less than that reported in British Columbia; these results may be the consequence...
Authors
R.R. Reisenbichler, S.R. Phelps
Utility of spawner-recruit relations for evaluating the effect of degraded environment on the abundance of Chinook salmon, Oncorhynchus tshawytscha Utility of spawner-recruit relations for evaluating the effect of degraded environment on the abundance of Chinook salmon, Oncorhynchus tshawytscha
No abstract available.
Authors
R.R. Reisenbichler