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
Juvenile fish transportation: impact of bacterial kidney disease on survival of spring/summer Chinook salmon stocks. Annual report 1993
No abstract available
Authors
D.G. Elliott, R.J. Pascho
Effects of mitigative measures on productivity of white sturgeon populations in the Columbia River downstream from McNary Dam and status and habitat requirements of white sturgeon populations in the Columbia and Snake Rivers upstream from McNary Dam
No abstract available
Authors
T.D. Counihan, Allen I. Miller, M.J. Parsley, L.G. Beckman
A non-lethal measure of smolt status of juvenile steelhead based on body morphology
A nonlethal morphometric method to assess smolt status of juvenile steelhead Oncorhynchus mykiss was validated. Fish were collected from hatcheries before release and during their seaward migration in a large river system. Fifteen anatomical landmarks were digitized from photographs of each fish, resulting in 34 morphometric characters based on a truss network. Principal component and canonical di
Authors
John W. Beeman, D.W. Rondorf, M.E. Tilson, D.A. Venditti
Early life history of northern squawfish Ptychocheilus oregonensis in the Columbia River. System-wide significance of predation on juvenile salmonids in Columbia and Snake River reservoirs and evaluation of predation control measures
No abstract available
Authors
C.A. Barfoot, D.M. Gadomski, J.M. Bayer, G.T. Schultz
Fluctuating asymmetry and fractal dimension of the sagittal suture as indicators of inbreeding depression in dama and dorcas gazelles
The effects of inbreeding on the developmental instability of skulls of dorcas (Gazella dorcas) and dama (G. dama) gazelles were investigated. In total, 132 dorcas gazelle skulls and 74 dama gazelle skulls from the Estación Experimental de Zonas Aridas in Almera, Spain, were measured. The fluctuating asymmetry of 9 meristic characters, consisting of the numbers of foramina on the two sides of the
Authors
Concepcion L. Alados, Juan Escos, John M. Emlen
Wind River steelhead restoration project: with special emphasis on the Trout Creek Basin
No abstract available
Authors
P.J. Connolly
Endangered cui-ui of Pyramid Lake, Nevada
Cui-ui (Chasmistes cujus) is a large plankton-feeding fish that only occurs in Pyramid Lake, Nevada. It was put on the federal endangered list in 1967 based on declining population and absence of reproduction. A lake dweller, cui-ui is a stream spawner. Most of this century, this sucker species was unable to access the Truckee River, Pyramid Lake's only perennial tributary, to reproduce. Water div
Authors
G. Gary Scoppettone, Peter H. Rissler
Questions and partial answers about supplementation - genetic differences between hatchery fish and wild fish
No abstract available
Authors
R.R. Reisenbichler
Brood stock segregation for the control of bacterial kidney disease can affect mortality of progeny chinook salmon (Oncorhynchus tshawytscha) in seawater
Segregation of spring chinook salmon (Oncorhynchus tshawytscha) brood stock based on the measurement of maternal Renibacterium salmoninarum infection levels by the enzyme-linked immunosorbent assay (ELISA) and the fluorescent antibody technique (FAT) was previously shown to affect the prevalence and levels of bacterial kidney disease (BKD) in progeny fish during hatchery rearing. Smolts from that
Authors
Diane G. Elliott, Ronald J. Pascho, Aldo N. Palmisano
Developmental instability in the Pacific Hake parasitized by the Myxosporean Kudoa spp.
A morphometric study of the otoliths of a population of Pacific hake Merluccius productus was conducted to detect developmental instability (DI) related to parasitism by Myxosporeans, Kudoa spp. We report a link between parasitism and DI, which we measured as fluctuating asymmetry by comparing the right–left differences in otolith shape, width, and weight in the same fish. Otolith shape provided t
Authors
J. Escos, C.L. Alados, J.M. Emlen, S. Alderstein
Light-mediated predation by northern squawfish on juvenile Chinook salmon
Northern squawfish Ptychocheilus oregonensis cause significant mortality of juvenile salmon in the lower Columbia River Basin (U.S.A.). The effects of light intensity on this predator-prey interaction were examined with laboratory experiments and modelling studies. In laboratory experiments, the rate of capture of subyearling chinook salmon Oncorhynchus tshawytscha by northern squawfish was invers
Authors
James H. Petersen, Dena M. Gadomski
Are all prey created equal? A review and synthesis of differential predation on prey in substandard condition
Our understanding of predator-prey interactions in fishes has been influenced largely by research assuming that the condition of the participants is normal. However, fish populations today often reside in anthropogenically altered environments and are subjected to many kinds of stressors, which may reduce their ecological performance by adversely affecting their morphology, physiology, or behaviou
Authors
Matthew G. Mesa, Thomas P. Poe, Dena M. Gadomski, James H. Petersen