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
Stress resistance strategy in an arid land shrub: interactions between developmental instability and fractal dimention Stress resistance strategy in an arid land shrub: interactions between developmental instability and fractal dimention
This paper investigates allocation of energy to mechanisms that generate and preserve architectural forms (i.e. developmental stability, complexity of branching patterns) and productivity (growth and reproduction) in response to environmental disturbances (i.e. grazing and resource availability). The statistical error in translational symmetry was used to detect random intra-individual...
Authors
J. Escos, C.L. Alados, F. I. Pugnaire, J. Puigdefabregas, J. Emlen
Egg incubation studies provide clues to the future of the once-largest herring stock in Puget Sound Egg incubation studies provide clues to the future of the once-largest herring stock in Puget Sound
No abstract available
Authors
P.K. Hershberger, R. M. Kocan, N.E. Elder
Forecasting survival and passage of migratory juvenile salmonids Forecasting survival and passage of migratory juvenile salmonids
We developed methods to forecast survival and cumulative percent passage for subyearling chinook salmon Oncorhynchus tshawytscha at a dam to help managers effectively time the release of reservoir water to mitigate for passage delays and reduced survival. We tagged Snake River subyearling chinook salmon upstream of a dam from 1993 to 1998 and determined when a subsample of the tagged...
Authors
William P. Connor, R. Kirk Steinhorst, Howard L. Burge
Tissue-specific induction of Hsp90 mRNA and plasma cortisol response in chinook salmon following heat shock, seawater challenge, and handling challenge Tissue-specific induction of Hsp90 mRNA and plasma cortisol response in chinook salmon following heat shock, seawater challenge, and handling challenge
In studying the whole-body response of chinook salmon (Oncorhynchus tshawytscha) to various stressors, we found that 5-hour exposure to elevated temperature (mean 21.6°C; + 10.6°C over ambient) induced a marked increase in Hsp90 messenger RNA accumulation in heart, brain, gill, muscle, liver, kidney, and tail fin tissues. The most vital tissues (heart, brain, gill, and muscle) showed the...
Authors
Aldo N. Palmisano, J. R. Winton, Walton W. Dickhoff
Progression and severity of gas bubble trauma in juvenile salmonids Progression and severity of gas bubble trauma in juvenile salmonids
We conducted laboratory experiments to assess the progression and to quantify the severity of signs of gas bubble trauma (GBT) in juvenile chinook salmon Oncorhynchus tshawytscha and steelhead Oncorhynchus mykiss exposed to different levels of total dissolved gas (TDG), and we attempted to relate these signs to the likelihood of mortality. When fish were exposed to 110% TDG for up to 22...
Authors
M.G. Mesa, L.K. Weiland, A.G. Maule
Method for flow cytometric monitoring of Renibacterium salmoninarum inactivation Method for flow cytometric monitoring of Renibacterium salmoninarum inactivation
The slow growth of Renibacterium salmoninarum limits the usefulness of culture as a research tool. Development of a 2-color flow cytometric assay to quantify the proportions of live and dead R. salmoninarum in a test population is described. Bacteria were simultaneously stained with fluorescein isothiocyanate-conjugated immunoglobulin and exposed to the exclusion dye propidium iodide...
Authors
R.J. Pascho, J.E. Ongerth
Reproductive longevity and fecundity associated with nonannual spawning in cui-ui Reproductive longevity and fecundity associated with nonannual spawning in cui-ui
The cui-ui Chasmistes cujus, a long-lived (40 years or more) and highly fecund catostomid, is often prevented from spawning in drought years. We studied the effect of cui-ui age on egg viability and the effect of nonannual spawning on fecundity in relation to length, age, and growth rate. Egg hatching and survival of swim-up larvae were examined for the offspring of first-time spawners
Authors
G.G. Scoppettone, P.H. Rissler, M.E. Buettner
Identification of juvenile fall versus spring chinook salmon migrating through the lower Snake River based on body morphology Identification of juvenile fall versus spring chinook salmon migrating through the lower Snake River based on body morphology
We tested the use of body morphology to distinguish among subyearling fall-run, subyearling spring-run, and yearling spring-run smolts of chinook salmon Oncorhynchus tshawytscha at two lower Snake River dams during the summer emigration. Based on principal-components analysis, subyearling fall-run chinook salmon had smaller heads and eyes, deeper bodies, and shorter caudal peduncles than...
Authors
K.F. Tiffan, D.W. Rondorf, R.D. Garland, P.A. Verhey
Novel transcripts of the estrogen receptor α gene in channel catfish Novel transcripts of the estrogen receptor α gene in channel catfish
Complementary DNA libraries from liver and ovary of an immature female channel catfish were screened with a homologous ERα cDNA probe. The hepatic library yielded two new channel catfish ER cDNAs that encode N-terminal ERα variants of different sizes. Relative to the catfish ERα (medium size; 581 residues) previously reported, these new cDNAs encode Long-ERα (36 residues longer) and...
Authors
Reynaldo Patino, Zhenfang Xia, William L. Gale, Chunfa Wu, Alec G. Maule, Xiaotian Chang
Water quality, benthic macroinvertebrate, and fish community monitoring in the Lost River sub-basin, Oregon and California, 1999 Water quality, benthic macroinvertebrate, and fish community monitoring in the Lost River sub-basin, Oregon and California, 1999
No abstract available
Authors
R.S. Shively, A.E. Kohler, B.J. Peck, M.A. Coen, B.S. Hayes
Using GIS and GPS to map seasonal distribution and relative density of Independence Valley speckled dace and Independence Valley tui chub Using GIS and GPS to map seasonal distribution and relative density of Independence Valley speckled dace and Independence Valley tui chub
No abstract available
Authors
P.H. Rissler, G.G. Scoppettone, S. Shea, S. Byers
What's a novirhabdovirus? What's a novirhabdovirus?
Some of our most well known fish viruses are now members of a newly recognized genus within the virus family Rhabdoviridae. As a member of the rhabdovirus study group of the International Committee for Virus Taxonomy (ICTV), I have been involved for the last five years in working towards updated and improved taxonomic classification of fish rhabdoviruses. The major fruit of this effort...
Authors
Gael Kurath