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: 2551
Developmental instability and fitness in Periploca laevigata experiencing grazing disturbance Developmental instability and fitness in Periploca laevigata experiencing grazing disturbance
We investigated the sensitivity of developmental instability measurements (leaf fluctuating asymmetry, floral radial asymmetry, and shoot translational asymmetry) to a long‐standing natural stress (grazing) in a palatable tannin‐producing shrub (Periploca laevigata Aiton). We also assessed the relationship between these measures of developmental instability and fitness components (growth...
Authors
C.L. Alados, M.L. Giner, L. Dehesa, J. Escos, F. Barroso, J.M. Emlen, D.C. Freeman
Incidence of Ichthyophonus hoferi in Puget Sound fishes and its increase with age of Pacific herring Incidence of Ichthyophonus hoferi in Puget Sound fishes and its increase with age of Pacific herring
A recent decrease in the mean age of adult Pacific herring Clupea pallasi in Puget Sound was associated with a high prevalence of Ichthyophonus hoferi, a protistan parasite that can be highly pathogenic to Pacific herring. In Puget Sound, high intensities of I. hoferiinfection may be maintained in older cohorts of Pacific herring because the prevalence ofI. hoferi increased with age from...
Authors
P.K. Hershberger, K. Stick, B. Bui, C. Carroll, B. Fall, C. Mork, J.A. Perry, E. Sweeney, J. Wittouck, J. Winton, R. Kocan
Novel molecular markers differentiate Oncorhynchus mykiss (rainbow trout and steelhead) and the O. clarki (cutthroat trout) subspecies Novel molecular markers differentiate Oncorhynchus mykiss (rainbow trout and steelhead) and the O. clarki (cutthroat trout) subspecies
A suite of 26 PCR-based markers was developed that differentiates rainbow (Oncorhynchus mykiss) and coastal cutthroat trout (O. clarki clarki). The markers also differentiated rainbow from other cutthroat trout subspecies (O. clarki), and several of the markers differentiated between cutthroat trout subspecies. This system has numerous positive attributes, including: nonlethal sampling...
Authors
C.O. Ostberg, R. J. Rodriguez
Egress of yearling and subyearling Chinook salmon and juvenile steelhead following juvenile bypass system passage at John Day Dam, 2002 Egress of yearling and subyearling Chinook salmon and juvenile steelhead following juvenile bypass system passage at John Day Dam, 2002
No abstract available
Authors
C. D. Smith, T.L. Liedtke, B.J. Hausmann, J.L. Schei, J.R. Lyng, L.P. Gee, J.W. Beeman
Studies on the detection, transmission, and development of Renibacterium salmoninarum infections in Great Lakes salmonid fishes. Report for June-September 2002. Studies on the detection, transmission, and development of Renibacterium salmoninarum infections in Great Lakes salmonid fishes. Report for June-September 2002.
Abstract not available
Authors
R.J. Pascho, D.G. Elliott
Evaluate status of coastal cutthroat trout in the Columbia River above Bonneville Dam, Portland, Oregon Evaluate status of coastal cutthroat trout in the Columbia River above Bonneville Dam, Portland, Oregon
Abstract not available
Authors
P.J. Connolly, C.S. Sharpe, S. Sauter
Identification of larval Pacific lampreys (Lampetra tridentata), river lampreys (L. ayresi), and western brook lampreys (L. richardsoni) and thermal requirements of early life history stages of lampreys. Annual report 2001-2002 Identification of larval Pacific lampreys (Lampetra tridentata), river lampreys (L. ayresi), and western brook lampreys (L. richardsoni) and thermal requirements of early life history stages of lampreys. Annual report 2001-2002
Abstract not available
Authors
M.H. Meeuwig, J.M. Bayer, J.G. Seelye, R.A. Reiche
Distributions and abundances of larval salamanders (Ambystoma macrodactylum) and large copepods (Diaptomus sp.) in relation to introduced trout and abiotic factors in mountain lakes of North Cascades National Park Service Complex Distributions and abundances of larval salamanders (Ambystoma macrodactylum) and large copepods (Diaptomus sp.) in relation to introduced trout and abiotic factors in mountain lakes of North Cascades National Park Service Complex
Abstract not available
Authors
W.J. Liss, G.L. Larson, L.M. Ganio, T.J. Tyler, R.L. Hoffman
Recovery of white sturgeon populations through natural production: Understanding the influence of abiotic and biotic factors on spawning and subsequent recruitment Recovery of white sturgeon populations through natural production: Understanding the influence of abiotic and biotic factors on spawning and subsequent recruitment
Recovery or maintenance of sturgeon populations through natural production in perturbed rivers requires adequate knowledge of the abiotic and biotic factors that influence spawning and cause mortality of embryonic, larval, and juvenile life stages. Although it is known that year-class strength of white sturgeon Acipenser transmontanus is determined within 2-3 months after spawning...
Authors
M.J. Parsley, P.J. Anders, Allen I. Miller, L.G. Beckman, G.T. McCabe
Estimating the survival of juvenile salmonids passing through The Dalles Dam using radio-telemetry, 2002 Estimating the survival of juvenile salmonids passing through The Dalles Dam using radio-telemetry, 2002
Abstract not available
Authors
T.D. Counihan, K. Felton, G.S. Holmberg, J.H. Petersen
Effects of rearing temperature on immune functions in sockeye salmon (Oncorhynchus nerka) Effects of rearing temperature on immune functions in sockeye salmon (Oncorhynchus nerka)
To determine if the defences of sockeye salmon (Oncorhynchus nerka) raised in captivity are affected by the rearing temperature or their life-cycle stage, various indices of the humoral and cellular immune functions were measured in fish reared at either 8 or 12??C for their entire life-cycle. Measures of humoral immunity included the commonly used haematological parameters, as well as
Authors
S.W. Alcorn, A.L. Murray, R.J. Pascho
Monitoring of Lost River and shortnose suckers in Upper Klamath Lake, Oregon Monitoring of Lost River and shortnose suckers in Upper Klamath Lake, Oregon
Abstract not available
Authors
E.C. Janney, B.S. Hayes, R.S. Shively, T.J. Tyler, G.N. Blackwood