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: 2562
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
Migrational characteristics of radio-tagged juvenile salmonids during operation of a surface collection and bypass system Migrational characteristics of radio-tagged juvenile salmonids during operation of a surface collection and bypass system
No abstract available.
Authors
N.S. Adams, D.W. Rondorf, S.D. Evans, J.E. Kelly, R.W. Perry, J.M. Plumb, D.R. Kennedy
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
Fish assemblages and habitat relationships in a small northern Great Plains stream Fish assemblages and habitat relationships in a small northern Great Plains stream
We examined fish populations and environmental characteristics of pool and riffle habitats of Little Beaver Creek, Montana, a small northern Great Plains stream. We collected 4,980 fishes representing 20 species in eight families. The most abundant and species-rich family was Cyprinidae. Nearly 88% (4,369) of all fishes were collected in pools. Pools also supported greater numbers...
Authors
C.A. Barfoot, R.G. White
Genetic characterization of naturally spawned Snake River fall-run Chinook salmon Genetic characterization of naturally spawned Snake River fall-run Chinook salmon
We sampled juvenile Snake River chinook salmon Oncorhynchus tshawytscha to genetically characterize the endangered Snake River fall-run population. Juveniles from fall and spring–summer lineages coexisted in our sampling areas but were differentiated by large allozyme allele frequency differences. We sorted juveniles by multilocus genotypes into putative fall and spring lineage...
Authors
A.R. Marshall, H.L. Blankenship, W.P. Connor
Outbreeding depression in hybrids between odd-and even-broodyear pink salmon Outbreeding depression in hybrids between odd-and even-broodyear pink salmon
Fewer F2 hybrids between even- and odd-broodline pink salmon (Oncorhynchus gorbuscha), which are lines that are genetically isolated by their strict two-year life cycle, survived than did F2 controls, indicating outbreeding depression. Cryopreserved sperm of 40 broodyear 1990 males and of 40 broodyear 1991 males fertilized equal subsamples of eggs from 40 broodyear 1992 females. Return...
Authors
A.J. Gharrett, W.W. Smoker, R.R. Reisenbichler, S.G. Taylor
Evaluation of the protective immunogencity of the N, P, M, NV and G proteins of infectious hematopoietic necrosis virus in rainbow trout Oncorhynchus mykiss using DNA vaccines Evaluation of the protective immunogencity of the N, P, M, NV and G proteins of infectious hematopoietic necrosis virus in rainbow trout Oncorhynchus mykiss using DNA vaccines
The protective immunogenicity of the nucleoprotein (N), phosphoprotein (P), matrix protein (M), non-virion protein (NV) and glycoprotein (G) of the rhabdovirus infectious hematopoietic necrosis virus (IHNV) was assessed in rainbow trout using DNA vaccine technology. DNA vaccines were produced by amplifying and cloning the viral genes in the plasmid pCDNA 3.1. The protective immunity...
Authors
S. Corbeil, S. E. LaPatra, Eric Anderson, J. Jones, B. Vincent, Ya Li Hsu, G. Kurath
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
Pathogenecity of Ichthyophonus hoferi for laboratory-reared Pacific herring (Clupea pallasi) and its early appearance in wild Puget Sound herring Pathogenecity of Ichthyophonus hoferi for laboratory-reared Pacific herring (Clupea pallasi) and its early appearance in wild Puget Sound herring
Laboratory-reared pathogen-free Pacific herring were exposed to pure cultures of Ichthyophonus hoferi, and reproduced the disease seen in naturally infected fish--thus fulfilling Koch's Postulates. Pathogen-free herring used in this study were reared from artificially spawned eggs incubated in filtered, UV-sterilized seawater, eliminating the variables associated with multiple infections...
Authors
R. Kocan, P. Hershberger, T. Mehl, N. Elder, M. Bradley, D. Wildermuth, K. Stick
Development of an RNase protection assay for rapid detection of genetic variation in the fish rhabdovirus viral haemorrhagic septicaemia virus Development of an RNase protection assay for rapid detection of genetic variation in the fish rhabdovirus viral haemorrhagic septicaemia virus
No abstract available.
Authors
M. Snow, Gael Kurath, C.O. Cunningham, D.M. Smail