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: 2489
Copper, cadmium, and zinc concentrations in juvenile Chinook salmon and selected fish-forage organisms (aquatic insects) in the upper Sacramento River, California
This study assessed the downstream extent andseverity of copper (Cu), cadmium (Cd), and zinc (Zn)contamination from acid mine drainage on juvenile chinook salmon(Oncorhynchus tshawytscha) and aquatic insects over aroughly 270-km reach of the Sacramento River below KeswickReservoir. During April–May 1998, salmon were collected fromfour sites in the river and from a fish hatchery that receiveswater
Authors
Michael K. Saiki, Barbara A. Martin, Larry D. Thompson, Daniel Walsh
Influence of breeding habitat on bear predation and age at maturity and sexual dimorphism of sockeye salmon populations
Age structure and morphology differ among Pacific salmon (Oncorhynchus spp.) populations. Sexual selection and reproductive capacity (fecundity and egg size) generally favor large (old), deep-bodied fish. We hypothesized that natural selection from physical access to spawning grounds and size-biased predation by bears, Ursus spp., opposes such large, deep-bodied salmon. Accordingly, size and shape
Authors
Thomas P. Quinn, Lisa A. Wetzel, Susan Bishop, Kristi Overberg, Donald E. Rogers
Mortality and kidney histopathology of Chinook salmon Oncorhynchus tshawytscha exposed to virulent and attenuated Renibacterium salmoninarum strains
An isolate of Renibacterium salmoninarum (strain MT 239) exhibiting reduced virulence in rainbow trout Oncorhynchus mykiss was tested for its ability to cause bacterial kidney disease (BKD) in chinook salmon Oncorhynchus tshawytscha, a salmonid species more susceptible to BKD. Juvenile chinook salmon were exposed to either 33209, the American Type Culture Collection type strain of R. salmoninarum,
Authors
Caroline L. O'Farrell, Diane G. Elliott, Marsha L. Landolt
Green fluorescent protein is lighting up fungal biology
Prasher (42) cloned a cDNA for the green fluorescent protein (GFP) gene from the jellyfishAequorea victoria in 1992. Shortly thereafter, to the amazement of many investigators, this gene or derivatives thereof were successfully expressed and conferred fluorescence to bacteria andCaenorhabditis elegans cells in culture (10,31), followed by yeast (24, 39), mammals (40), Drosophila (66),Dictyostelium
Authors
J.M. Lorang, R.P Tuori, J.P Martinez, T. L. Sawyer, R. S. Redman, J. A. Rollins, T.J. Wolpert, K.B. Johnson, R. J. Rodriguez, M. B. Dickman, L.M. Ciuffetti
Survival of the North American strain of viral hemorrhagic septicemia virus (VHSV) in filtered seawater and seawater containing ovarian fluid, crude oil and serum-enriched culture medium
The North American strain of viral hemorrhagic septicemia virus (NA-VHSV) could be recovered for up to 40 h in natural filtered seawater (27 ppt) with a 50% loss of infectivity after approximately 10 h at 15°C. Addition of 10 ppb North Slope crude oil to the seawater had no effect on virus survival. However, when various concentrations of teleost ovarian fluid were added to seawater, virus could
Authors
R. M. Kocan, P.K. Hershberger, N.E. Elder
Epidemiology of viral hemorrhagic septicemia (VHS) among juvenile Pacific herring and Pacific sandlances in Puget Sound, Washington
Viral hemorrhagic septicemia (VHS) and the associated virus (VHSV) were identified in newly metamorphosed Pacific herring Clupea pallasi and Pacific sand lances Ammodytes hexapterus captured from Puget Sound, Washington, between 1995 and 1998. During that 4-year period, virus was detected in less than 1% of free-ranging, age-0 Pacific herring; however, when groups of these fish were confined in th
Authors
R. M. Kocan, P.K. Hershberger, N.E. Elder, J. R. Winton
Molecular transformation, gene cloning, and gene expression systems for filamentous fungi
This chapter discusses the molecular transformation, gene cloning, and gene expression systems for filamentous fungi. Molecular transformation involves the movement of discrete amounts of DNA into cells, the expression of genes on the transported DNA, and the sustainable replication of the transforming DNA. The ability to transform fungi is dependent on the stable replication and expression of gen
Authors
Scott E. Gold, John W. Duick, Regina S. Redman, Rusty J. Rodriguez
Dam breaching and Chinook salmon recovery
The Report by Kareiva et al. on recovery and management options for spring/summer chinook salmon (1) has the potential to have a major impact in deciding whether to breach dams on the Snake River. Based on interpretation of their model results, they argue that dam breaching would be insufficient to reverse the decline of salmon. An examination of the specifics of their model, however, suggests tha
Authors
Jeffrey M. Dambacher, Philippe A. Rossignol, Hiram W. Li, John M. Emlen, Peter Kareiva, Michelle Marvier, Michelle M. McClure
Early life history attributes and run composition of PIT-tagged wild subyearling Chinook salmon recaptured after migrating downstream past Lower Granite Dam
Seaward migration timing of Snake River fall chinook salmon (Oncorhynchus tshawytscha) smolts is indexed using subyearling chinook salmon passage data collected at Lower Granite Dam. However, not all of the subyearlings are fall chinook salmon. For six years, we recaptured wild subyearling chinook salmon smolts, which had been previously PIT tagged in the Snake River, to genetically determine if t
Authors
W.P. Connor, T.C. Bjornn, H.L. Burge, A.R. Marshall, H.L. Blankenship, R.K. Steinhorst, K.F. Tiffan
Coho salmon Oncorhynchus kisutch strain differences in disease resistance and non-specific immunity, following immersion challenges with Vibrio anguillarum
Two strains of freshwater-reared coho salmon Oncorhynchus kisutch were compared for differences in the activity of selected non-specific immune factors before and after lethal and non-lethal immersion challenges with the marine bacterial pathogen Vibrio anguillarum (Vang). Two disease challenge experiments were performed. The first experimental challenge resulted in no mortality; however, signific
Authors
Shannon K. Balfry, Alec G. Maule, George K. Iwama
Translational and fluctuating asymmetry as tools to detect stress in stress-adapted and nonadapted plants
No abstract available.
Authors
C.L. Alados, T. Navarro, J.J. Escos, B. Cabezudo, J.M. Emlen
Management of Pacific herring closed pound spawn-on-kelp fisheries to optimize fish health and product quality
Use of high densities of newly recruited Pacific herring Clupea pallasi for the closed-pound spawn-on-kelp (PPSOK) fishery in Prince William Sound, Alaska, was associated with increased gamete retention, decreased product quality, and increased prevalence of viral hemorrhagic septicemia virus (VHSV) relative to the confinement of older cohorts at lower densities. To maximize product quality and re
Authors
P.K. Hershberger, N.E. Elder, G.D. Marty, J. Johnson, R. M. Kocan