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: 2499
Comparative sequence analyses of sixteen reptilian paramyxoviruses Comparative sequence analyses of sixteen reptilian paramyxoviruses
Viral genomic RNA of Fer-de-Lance virus (FDLV), a paramyxovirus highly pathogenic for reptiles, was reverse transcribed and cloned. Plasmids with significant sequence similarities to the hemagglutinin-neuraminidase (HN) and polymerase (L) genes of mammalian paramyxoviruses were identified by BLAST search. Partial sequences of the FDLV genes were used to design primers for amplification...
Authors
W. Ahne, W.N. Batts, Gael Kurath, J. R. Winton
Geographic distribution of chromosome and microsatellite DNA polymorphisms in <i>Oncorhynchus mykiss</i> native to western Washington Geographic distribution of chromosome and microsatellite DNA polymorphisms in <i>Oncorhynchus mykiss</i> native to western Washington
Chromosome studies of native populations of Oncorhynchus mykiss (steelhead and rainbow trout) in western Washington and southern British Columbia revealed the presence of two evolutionarily distinct chromosome lineages. Populations between, and including, the Elwha River, Washington, and Chilliwack River, British Columbia, contained 2n = 60 chromosomes. Populations on the central...
Authors
C.O. Ostberg, G.H. Thorgaard
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
Relative virulence of three isolates of Piscirickettsia salmonis for coho salmon Oncorhynchus kisutch Relative virulence of three isolates of Piscirickettsia salmonis for coho salmon Oncorhynchus kisutch
Piscirickettsia salmonis was first recognized as the cause of mortality among pen-reared coho salmon Oncorhynchus kisutch in Chile. Since the initial isolation of this intracellular Gram-negative bacterium in 1989, similar organisms have been described from several areas of the world, but the associated outbreaks were not reported to be as serious as those that occurred in Chile. To...
Authors
M.L. House, J. L. Bartholomew, J. R. Winton, J.L. Fryer
Effects of drought on desert tortoise movement and activity Effects of drought on desert tortoise movement and activity
We monitored movement and activity patterns of 38 desert tortoises (Gopherus agassizii) at 2 locations in the southcentral Mojave Desert during 2 consecutive years differing markedly in winter rainfall. During the first year, winter precipitation was 225% greater than the long-term average for this region, whereas a drought the following year resulted in precipitation that was 25% of the...
Authors
J.J. Duda, A.J. Krzysik, J.E. Freilich
Willamette River ecological health studies. In situ bioassay analysis Willamette River ecological health studies. In situ bioassay analysis
Abstract not available
Authors
R. Kocan, P. Hershberger
Yukon River king salmon- Ichthyophonus pilot study (prevalence and pathology) Yukon River king salmon- Ichthyophonus pilot study (prevalence and pathology)
Abstract not available
Authors
R.M. Kocan, P.K. Hershberger
Survival potential of Cherry Point herring: Larval abnormalities and weight at hatch following in situ incubation of developing embryos Survival potential of Cherry Point herring: Larval abnormalities and weight at hatch following in situ incubation of developing embryos
Abstract not available
Authors
P.K. Hershberger, R.M. Kocan
Characteristics of upstream migrating Pacific lampreys (Lampetra tridentata) in the Columbia River Characteristics of upstream migrating Pacific lampreys (Lampetra tridentata) in the Columbia River
Abstract not available
Authors
J.M. Bayer, J.G. Seelye
Assessment and analysis of smolt condition in the Columbia River Basin, volume 1: Evaluation of the effect of a modified feeding strategy on growth and smoltification of summer steelhead (Oncorhynchus mykiss) at Dworshak National Fish Hatchery Assessment and analysis of smolt condition in the Columbia River Basin, volume 1: Evaluation of the effect of a modified feeding strategy on growth and smoltification of summer steelhead (Oncorhynchus mykiss) at Dworshak National Fish Hatchery
Abstract not available
Authors
R. M. Schrock, R.E. Reagan, P.A. Petrusso, J. Coyle
Successful aquatic animal disease emergency programmes Successful aquatic animal disease emergency programmes
The authors provide examples of emergency programmes which have been successful in eradicating or controlling certain diseases of aquatic animals. The paper is divided into four parts. The first part describes the initial isolation of viral haemorrhagic septicaemia (VHS) virus in North America in the autumn of 1988 from feral adult chinook (Oncorhynchus tshawytscha) and coho salmon (O...
Authors
T. Hastein, B.J. Hill, J. R. Winton
Biochemical analysis of plant protection afforded by a nonpathogenic endophytic mutant of Colletotrichum magna Biochemical analysis of plant protection afforded by a nonpathogenic endophytic mutant of Colletotrichum magna
A nonpathogenic mutant of Colletotrichum magna (path-1) was previously shown to protect watermelon (Citrullus lanatus) and cucumber (Cucumis sativus) seedlings from anthracnose disease elicited by wild-type C. magna. Disease protection was observed in stems of path-1-colonized cucurbits but not in cotyledons, indicating that path-1 conferred tissue-specific and/or localized protection...
Authors
R. S. Redman, S. Freeman, D.R. Clifton, J. Morrel, G. Brown, R. J. Rodriguez