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
Hybridization and cytonuclear associations among native westslope cutthroat trout, introduced rainbow trout, and their hybrids within the Stehekin River drainage, North Cascades National Park Hybridization and cytonuclear associations among native westslope cutthroat trout, introduced rainbow trout, and their hybrids within the Stehekin River drainage, North Cascades National Park
Historic introductions of nonnative rainbow trout Oncorhynchus mykiss into the native habitats of cutthroat trout O. clarkii have impacted cutthroat trout populations through introgressive hybridization, creating challenges and concerns for cutthroat trout conservation. We examined the effects of rainbow trout introductions on the native westslope cutthroat trout O. c. lewisii within the...
Authors
C.O. Ostberg, R. J. Rodriguez
Variables influencing the presence of subyearling fall Chinook salmon in shoreline habitats of the Hanford Reach, Columbia River Variables influencing the presence of subyearling fall Chinook salmon in shoreline habitats of the Hanford Reach, Columbia River
Little information currently exists on habitat use by subyearling fall Chinook salmon Oncorhynchus tshawytscha rearing in large, main-stem habitats. We collected habitat use information on subyearlings in the Hanford Reach of the Columbia River during May 1994 and April-May 1995 using point abundance electrofishing. We analyzed measures of physical habitat using logistic regression to...
Authors
K.F. Tiffan, L.O. Clark, R.D. Garland, D.W. Rondorf
An isolate of Piscirickettsia salmonis from white seabass is fully virulent for coho salmon An isolate of Piscirickettsia salmonis from white seabass is fully virulent for coho salmon
The virulence of the WSB-98 isolate of Piscirickettsia salmonis from white seabass Atractoscion nobilis was compared with that of the American Type Culture Collection type strain LF-89, which was originally isolated from coho salmon Oncorhynchus kisutch in Chile. In controlled laboratory challenges of juvenile coho salmon, the isolate from white seabass exhibited virulence that was equal...
Authors
M.L. House, R.P. Hedrick, J. R. Winton, J. L. Fryer
Ichthyophonus sp. in adult Chinook salmon (Oncorhynchus tshawytscha) Ichthyophonus sp. in adult Chinook salmon (Oncorhynchus tshawytscha)
No abstract available.
Authors
Diane G. Elliott
A survey of chemical constituents in National Fish Hatchery fish feed A survey of chemical constituents in National Fish Hatchery fish feed
Recent studies have demonstrated that various fish feeds contain significant concentrations of contaminants, many of which can bioaccumulate and bioconcentrate in fish. It appears that numerous organochlorine (OC) contaminants are present in the fish oils and fish meals used in feed manufacture, and some researchers speculate that all fish feeds contain measurable levels of some...
Authors
Alec G. Maule, Ann Gannam, Jay Davis
Identification and regulatory analysis of rainbow trout tapasin and tapasin-related genes Identification and regulatory analysis of rainbow trout tapasin and tapasin-related genes
Tapasin (TAPBP) is a key member of MHC class Ia antigen-loading complexes, bridging the class Ia molecule to the transporter associated with antigen presentation (TAP). As part of an ongoing study of MHC genomics in rainbow trout, we have identified two rainbow trout TAPBP genes (Onmy-TAPBP.a and .b) and a similar but distinct TAPBP-related gene (Onmy-TAPBP-R) that had previously only...
Authors
E.D. Landis, Y. Palti, J. Dekoning, R. Drew, R.B. Phillips, J.D. Hansen
Risk of Myxobolus cerebralis infection to rainbow trout in the Madison River, Montana, USA Risk of Myxobolus cerebralis infection to rainbow trout in the Madison River, Montana, USA
Myxobolus cerebralis, the parasite that causes salmonid whirling disease, has had detrimental effects on several salmonid populations in the Intermountain West, including the rainbow trout in the Madison River, Montana, USA. The goal of this study was to examine relationships among characteristics of the environment, Tubifex tubifex (the alternate host) populations, and rainbow trout...
Authors
R.C. Krueger, B.L. Kerans, E.R. Vincent, C. Rasmussen
Passage behavior of radio-tagged subyearling Chinook salmon at Bonneville Dam, 2005 Passage behavior of radio-tagged subyearling Chinook salmon at Bonneville Dam, 2005
No abstract available
Authors
R.E. Reagan, M.J. Farley, S.D. Evans, L.S Wright, N.S. Adams, D.W. Rondorf
Survival estimates of migrant juvenile salmonids through The Dalles Dam using radio telemetry, 2005 Survival estimates of migrant juvenile salmonids through The Dalles Dam using radio telemetry, 2005
No abstract available
Authors
T. Counihan, A. Puls, C. Walker, G. Holmberg
Predicted changes in subyearling fall Chinook salmon rearing and migratory habitat under two drawdown scenarios for John Day Reservoir, Columbia River Predicted changes in subyearling fall Chinook salmon rearing and migratory habitat under two drawdown scenarios for John Day Reservoir, Columbia River
We evaluated the potential effects of two different drawdown scenarios on rearing and migration habitat of subyearling fall Chinook salmon Oncorhynchus tshawytscha in John Day Reservoir on the Columbia River. We compared habitats at normal operating pool elevation with habitats at drawdown to spillway crest elevation and drawdown to the historical natural river elevation for two flows (4...
Authors
K.F. Tiffan, R.D. Garland, D.W. Rondorf
Lower Methow tributaries intensive effectiveness monitoring study. 2005 progress report Lower Methow tributaries intensive effectiveness monitoring study. 2005 progress report
n/a
Authors
P.J. Connolly, K. Martens, D. Ruttenberg, S. Clayton