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: 2525
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
Persistent infections of fish cell lines by paramyxovirus isolates from Chinook salmon (Oncorhynchus tschawytscha) Persistent infections of fish cell lines by paramyxovirus isolates from Chinook salmon (Oncorhynchus tschawytscha)
We have reported the isolation of a paramyxovirus from stocks of adult chinook salmon (Oncorhynchus tshawytscha) returning to coastal rivers of Oregon, USA (Winton et al 1985). The isolates were obtained from kidney and spleen tissues using the chinook salmon embryo cell line, CHSE-214. Initial cytopathic effect (CPE) was slow to develop, requiring 28 days incubation at 18°C. The virus...
Authors
C.N. Lannan
Tundra ponds of the Yukon Delta, Alaska, and their macroinvertebrate communities. Tundra ponds of the Yukon Delta, Alaska, and their macroinvertebrate communities.
The Yukon Delta, a low alluvial tundra in western Alaska, has more than 105 thaw-basin ponds within its 70000 km2 area. In 1984 and 1985, 68 ponds in three interior areas of the Delta were surveyed to determine limnological features, macroinvertebrate fauna, and trophic character. Ponds ranged up to 90 ha in area, 2 m in depth, and 17 m in elevation, and occurred in various temporal...
Authors
J. A. Maciolek
Methods for developing new stocks of Atlantic salmon Methods for developing new stocks of Atlantic salmon
The productivity of many streams in NewEngland for Atlantic salmon is being restored through abatement of water pollution and removal of barriers to migrating fish. As a result, interest is increasing in reestablishment of natural spawning runs of Atlantic salmon in some of these streams. I describe methods intended to help develop and maintain "new" stocks of these fish.