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: 2517
Use of a miniature pressure-sensitive transmitter to determine the in-situ migration depths of juvenile salmonids in relation to total dissolved gas supersaturation Use of a miniature pressure-sensitive transmitter to determine the in-situ migration depths of juvenile salmonids in relation to total dissolved gas supersaturation
Abstract not available
Authors
J.W. Beeman, A.G. Maule
Density, aggregation, and body size of northern pikeminnow preying on juvenile salmonids in a large river Density, aggregation, and body size of northern pikeminnow preying on juvenile salmonids in a large river
Predation by northern pikeminnow Ptychocheilus oregonensis on juvenile salmonids Oncorhynchus spp. occurred probably during brief feeding bouts since diets were either dominated by salmonids (>80% by weight), or contained other prey types and few salmonids (
Authors
J.H. Petersen
Early life history of the northern pikeminnow in the lower Columbia River basin Early life history of the northern pikeminnow in the lower Columbia River basin
The northern pikeminnow Ptychocheilus oregonensis is a large, native cyprinid in the Columbia River basin that has persisted in spite of substantial habitat alterations. During the months of June to September 1993-1996, we investigated the temporal and spatial patterns of northern pikeminnow spawning, along with describing larval drift and characterizing larval and early juvenile rearing...
Authors
D.M. Gadomski, C.A. Barfoot, J.M. Bayer, T.P. Poe
Evidence that coded-wire-tagging procedures can enhance transmission of Renibacterium salmoninarum in chinook salmon Evidence that coded-wire-tagging procedures can enhance transmission of Renibacterium salmoninarum in chinook salmon
Binary coded wire tags (CWTs) are used extensively for identification and management of anadromous salmonid populations. A study of bacterial kidney disease (BKD) in two brood year groups of hatchery-reared spring chinook salmon Oncorhynchus tshawytscha provided strong evidence that horizontal transmission of Renibacterium salmoninarum, the causative agent of BKD, might be enhanced by...
Authors
D.G. Elliott, R.J. Pascho
Translational and fluctuating asymmetry as tools to detect stress in stress-adapted and nonadapted plants Translational and fluctuating asymmetry as tools to detect stress in stress-adapted and nonadapted plants
Plants having experienced previous exposure to a stress are expected to be more resistant to further stress than those not having been exposed. While the assessment of stress in plants is a difficult task, particularly for stress-adapted plants, developmental instability has proven a useful tool for assessing stress in organisms. We examined the effect of water availability on...
Authors
C.L. Alados, T. Navarro, J. Escos, B. Cabezudo, J.M. Emlen
Efficacy of a DNA vaccine against infectious hematopoietic necrosis virus Efficacy of a DNA vaccine against infectious hematopoietic necrosis virus
No abstract available
Authors
G. Kurath, S. Corbeil, Eric Anderson, S. E. LaPatra
Spatial, temporal, and community dynamics of zooplankton in McNary and John Day Reservoirs Spatial, temporal, and community dynamics of zooplankton in McNary and John Day Reservoirs
Abstract not available
Authors
C. A. Haskell, D.W. Rondorf, K.F. Tiffan
Upstream migration of Pacific lampreys in the John Day River: behavior, timing and habitat use. Presentation of research 2000 Upstream migration of Pacific lampreys in the John Day River: behavior, timing and habitat use. Presentation of research 2000
Abstract not available
Authors
J.M. Bayer, T.C. Robinson, J.G. Seelye
Biological evaluation of the behavioral guidance structure at Lower Granite dam on the Snake River, Washington in 1998 Biological evaluation of the behavioral guidance structure at Lower Granite dam on the Snake River, Washington in 1998
Abstract not available
Authors
N.S. Adams, G. E. Johnson, D.W. Rondorf, S.M. Anglea, T. Wik
Behavioral thermoregulation by juvenile spring and fall chinook salmon, Oncorhynchus tshawytscha, during smoltification Behavioral thermoregulation by juvenile spring and fall chinook salmon, Oncorhynchus tshawytscha, during smoltification
Fall chinook salmon evolved to emigrate during the summer months. The shift in the temperature preference we observed in smolting fall chinook but not spring chinook salmon may reflect a phylogenetic adaptation to summer emigration by (1) providing directional orientation as fall chinook salmon move into the marine environment, (2) maintaining optimal gill function during emigration and...
Authors
S.T. Sauter, L.I. Crawshaw, A.G. Maule
Fungal symbiosis from mutualism to parasitism: who controls the outcome, host or invader? Fungal symbiosis from mutualism to parasitism: who controls the outcome, host or invader?
Plant symbiotic fungi are generally thought to express a single lifestyle that might increase (mutualism), decrease (parasitism), or have no influence (commensalism) on host fitness. However, data are presented here demonstrating that plant pathogenic Colletotrichum species are able to asymptomatically colonize plants and express nonpathogenic lifestyles. Experiments were conducted in...
Authors
R. S. Redman, D.D. Dunigan, R. J. Rodriguez
The effects of Myxobolus cerebralis, myxospore dose on triactinomyxon production and biology of Tubifex tubifex from two geographic regions The effects of Myxobolus cerebralis, myxospore dose on triactinomyxon production and biology of Tubifex tubifex from two geographic regions
The aquatic oligochaete Tubifex tubifex is an obligate host of Myxobolus cerebralis, the causative agent of salmonid whirling disease. Tubifex tubifex can become infected by ingesting myxospores ofM. cerebralis that have been released into sediments upon death and decomposition of infected salmonids. Infected worms release triactinomyxons into the water column that then infect salmonids...
Authors
Richard Stevens, B.L. Kerans, J. C. Lemmon, Charlotte Rasmussen