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: 2517
Movements and passage routes of radio-tagged juvenile Chinook salmon and steelhead in the forebay of Lower Granite Dam as determined from fixed-site receiver stations Movements and passage routes of radio-tagged juvenile Chinook salmon and steelhead in the forebay of Lower Granite Dam as determined from fixed-site receiver stations
Abstract not available
Authors
S.D. Evans, N.S. Adams, R.W. Perry, J.M. Plumb, M.S. Novick
Growth and mortality of age-0 northern squawfish, Ptychocheilus oregonensis, rearing in shoreline habitats of the Columbia River Reservoir Growth and mortality of age-0 northern squawfish, Ptychocheilus oregonensis, rearing in shoreline habitats of the Columbia River Reservoir
We investigated growth and mortality of age-0 northern squawfish during early rearing in shallow shoreline habitats. Larvae and juveniles (n=22914) were collected by weekly seining at three sample sites in the upper John Day Reservoir, Columbia River, during June through early September 1994–1996. Using a length-based ageing method, it was estimated that the exponential growth rate (G)...
Authors
C.A. Barfoot, D.M. Gadomski, R.H. Wertheimer
Masculinization of Nile tilapia (Oreochromis niloticus) by immersion in androgens Masculinization of Nile tilapia (Oreochromis niloticus) by immersion in androgens
The use of all-male populations increases the efficiency and feasibility of tilapia aquaculture. The objective of this study was to determine the efficacy of a short-term immersion procedure for masculinizing Nile tilapia (Oreochromis niloticus). Two synthetic androgens were evaluated: 17α-methyldihydrotestosterone (MDHT) and 17α-methyltestosterone (MT). Exposure (3 h) on 10 and again on...
Authors
W.L. Gale, M.S. Fitzpatrick, M. Lucero, W.M. Contreras-Sanchez, C. B. Schreck
Antigenic and functional characterization of p57 produced by Renibacterium salmoninarum Antigenic and functional characterization of p57 produced by Renibacterium salmoninarum
Renibacterium salmoninarum, the causative agent of bacterial kidney disease, produces large quantities of a 57-58 kDa protein (p57) during growth in broth culture and during infection of salmonid fish. Biological activities of secreted p57 include agglutination of salrnonid leucocytes and rabbit erythrocytes. We define the location of epitopes on p57 recognized by agglutination-blocking...
Authors
G. Weins, M.S. Chien, J. R. Winton, S.L. Kaatari
Gas bubble trauma monitoring and research of juvenile salmonids. Annual report 1998 Gas bubble trauma monitoring and research of juvenile salmonids. Annual report 1998
Abstract not available
Authors
J.W. Beeman, T.C. Robinson, S. P. VanderKooi, P.V. Haner
Growth, smoltification, and smolt-to-adult return of spring chinook salmon from hatcheries on the Deschutes river, Oregon Growth, smoltification, and smolt-to-adult return of spring chinook salmon from hatcheries on the Deschutes river, Oregon
The relationship between smoltification and smolt-to-adult return (SAR) of spring chinook salmon Oncorhynchus tshawytscha from the Deschutes River, Oregon, was examined for four release groups in each of three successive years. Fish were reared, marked with coded wire tags, and released from Round Butte Hatchery, Pelton Ladder rearing facility, and Warm Springs National Fish Hatchery...
Authors
B.R. Beckman, Walton W. Dickhoff, W.S. Zaugg, C. Sharpe, S. Hirtzel, R. Schrock, Donald A. Larsen, R.D. Ewing, A. Palmisano, C.B. Schreck, C.V.W. Mahnken
Assessment of smolt condition for travel time analysis. Annual report 1993-1994 Assessment of smolt condition for travel time analysis. Annual report 1993-1994
Abstract not available
Authors
R. M. Schrock, P.V. Haner, K.M. Hans, J.W. Beeman, S. P. VanderKooi, J.D. Hotchkiss, P.A. Petrusso, S.G. Smith, A.G. Maule
Juvenile steelhead and rearing conditions Juvenile steelhead and rearing conditions
Abstract not available
Authors
P.J. Connolly
Sequence features and phylogenetic analysis of the stress protein Hsp90α in chinook salmon Oncorhynchus tshawytscha, a poikilothermic vertebrate Sequence features and phylogenetic analysis of the stress protein Hsp90α in chinook salmon Oncorhynchus tshawytscha, a poikilothermic vertebrate
We cloned and sequenced a chinook salmon Hsp90 cDNA; sequence analysis shows it to be Hsp90??. Phylogenetic analysis supports the hypothesis that ?? and ?? paralogs of Hsp90 arose as a result of a gene duplication event and that they diverged early in the evolution of vertebrates, before tetrapods separated from the teleost lineage. Among several differences distinguishing poikilothermic...
Authors
Aldo N. Palmisano, James R. Winton, Walton W. Dickhoff
Influence of bacterial kidney disease on smoltification in salmonids: Is it a case of double jeopardy? Influence of bacterial kidney disease on smoltification in salmonids: Is it a case of double jeopardy?
We investigated the effects of a chronic, progressive infection with Renibacterium salmoninarum (Rs), the causative agent of bacterial kidney disease (BKD), on selected aspects of smoltification in yearling juvenile spring chinook salmon (Oncorhynchus tshawytscha). After experimentally infecting fish with Rs using an immersion challenge, we sampled them every two weeks to monitor changes...
Authors
M.G. Mesa, A.G. Maule, T.P. Poe, C.B. Schreck
Rate of disappearance of gas bubble trauma signs in juvenile salmonids Rate of disappearance of gas bubble trauma signs in juvenile salmonids
To assess the rate of disappearance of gas bubble trauma (GBT) signs in juvenile salmonids, we exposed spring chinook salmon Oncorhynchus tshawytscha and steelhead O. mykiss to water containing high levels of dissolved gas supersaturation (DGS) for a time period sufficient to induce signs of GBT, reduced the DGS to minimal levels, and then sampled fish through time to document changes in...
Authors
K.M. Hans, M.G. Mesa, A.G. Maule