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: 2488
Copper, cadmium, and zinc concentrations in aquatic food chains from the Upper Sacramento River (California) and selected tributaries
Metals enter the Upper Sacramento River above Redding, California, primarily through Spring Creek, a tributary that receives acid-mine drainage from a US EPA Superfund site known locally as Iron Mountain Mine. Waterweed (Elodea canadensis) and aquatic insects (midge larvae, Chironomidae; and mayfly nymphs, Ephemeroptera) from the Sacramento River downstream from Spring Creek contained much higher
Authors
M. K. Saiki, D. T. Castleberry, T. W. May, B.A. Martin, F. N. Bullard
The influence of life history trade-offs and the size of the incubation gravels on egg size variation in sockeye salmon Onchorhynchus nerka
Egg size is a critical life history trait, reflecting female investment and affecting off- spring fitness. We investigated several factors which may influence variation in egg weight for sockeye salmon (Oncorhynchus nerka). Comparisons were based on col- lections from 18 Alaskan populations, among which adult migration distance and ju- venile rearing habitat were similar but the size composition
Authors
Thomas P. Quinn, Andrew P. Hendry, Lisa A. Wetzel
Fractal structures and fractal functions as disease indicators
Developmental instability is an early indicator of stress, and has been used to monitor the impacts of human disturbance on natural ecosystems. Here we investigate the use of different measures of developmental instability on two species, green peppers (Capsicum annuum), a plant, and Spanish ibex (Capra pyrenaica), an animal. For green peppers we compared the variance in allometric relationship b
Authors
J.M Escos, C.L. Alados, J.M. Emlen
Molecular epizootiology and evolution of the glycoprotein and non-virion protein genes of infectious hematopoietic necrosis virus, a fish rhabdovirus
Infectious hematopoietic necrosis virus (IHNV) causes a highly lethal, economically important disease of salmon and trout. The virus is enzootic throughout western North America, and has been spread to Asia and Europe. The nucleotide sequences of the glycoprotein (G) and non-virion (NV) genes of 12 diverse IHNV isolates were determined in order to examine the molecular epizootiology of IHN, the pr
Authors
Stuart T. Nichol, Joan E. Rowe, James R. Winton
Inactivation of Renibacterium salmoninarum by free chlorine
Salmonid fishes contract bacterial kidney disease by vertical or horizontal transmission of the pathogenic bacterium, Renibacterium salmoninarum. Procedures to reduce vertical transmission are under evaluation, but methods are still needed to eliminate sources of waterborne R. salmoninarum. We examined the efficacy of chlorine to inactivate R. salmoninarum. The bacterium was exposed to various lev
Authors
Ronald J. Pascho, Marsha L. Landolt, Jerry E. Ongerth
Development of a DNA probe for the myxosporean parasite, Ceratomyxa shasta, using the polymerase chain reaction with arbitrary primers
The arbitrarily primed polymerase chain reaction (PCR) was used to generate a DNA marker specific for the myxosporean parasite Ceratomyxa shasta. The [32P]-labeled marker hybridized to purified C. shasta DNA and to parasite DNA combined with salmonid DNA in a dot blot assay, demonstrating its potential as a diagnostic tool. The amplified DNA segment was cloned and sequenced, and primers specific f
Authors
Jerri L Bartholomew, Rusty J. Rodriguez, Cindy K. Arakawa
Differentiation of Colletotrichum species responsible for anthracnose of strawberry by arbitrarily primed PCR
A collection of 39 isolates of Colletotrichum acutatum, C. fragariae and C. gloeosporioides, which cause anthracnose on strawberry, was grouped into species based on the arbitrarily primed polymerase chain reaction (ap-PCR). All isolates used had previously been identified according to classical taxonomic morphology. Ap-PCR amplification of genomic DNA using four different primers allowed for reli
Authors
S. Freeman, R. J. Rodriguez
Immune response to synthetic peptides representing antigenic sites on the glycoprotein of infectious hematopoietic necrosis virus
Summary ― Monoclonal antibodies against infectious hematopoietic necrosis virus have been used to react with recombinant expression products in immunoblots and to select neutralization-resistant mutants for sequence analysis. These strategies identified neutralizing and non-neutralizing antigenic sites on the viral glycoprotein. Synthetic peptides based upon the amino acid sequences of these antig
Authors
Eveline J. Emmenegger, C. Huang, S. LaPatra, James R. Winton
Migratory behavior of Heterosigma carterae, implications for bloom development
No abstract available
Authors
P.K. Hershberger
Nucleotide sequence of the M1 and M2 protein genes of hirame rhabdovirus (HRV), a fish rhabdovirus
No abstract available
Authors
T. Nishizawa, G. Kurath, J. Winton
The NV genes of fish rhabdoviruses: development of RNase protection assays for rapid assessment of genetic variation
No abstract available
Authors
G. Kurath, K.H. Higman, H.V. Bjorklund
Immune response to synthetic peptides representing antigenic sites on the glycoprotein of infectious hematopoietic necrosis virus
No abstract available
Authors
E. Emmenegger, M. Landolt, S. LaPatra, J. Winton