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: 2559
THE SKIN | Functional morphology of the integumentary system in fishes THE SKIN | Functional morphology of the integumentary system in fishes
The integument that covers the outer surface of a fish’s body and fins is a multifunctional organ, with morphological features highly adapted to carry out these functions. The integument consists of two layers. The outer layer, the epidermis, is essentially cellular in structure, comprised of a multilayered epithelium that usually includes specialized cells. The inner layer, the dermis...
Authors
D.G. Elliott
Growth, morphology, and developmental instability of rainbow trout, Yellowstone cutthroat trout, and four hybrid generations Growth, morphology, and developmental instability of rainbow trout, Yellowstone cutthroat trout, and four hybrid generations
Hybridization of cutthroat trout Oncorhynchus clarkii with nonindigenous rainbow trout O. mykiss contributes to the decline of cutthroat trout subspecies throughout their native range. Introgression by rainbow trout can swamp the gene pools of cutthroat trout populations, especially if there is little selection against hybrids. We used rainbow trout, Yellowstone cutthroat trout O...
Authors
C.O. Ostberg, J.J. Duda, J.H. Graham, S. Zhang, K. P. Haywood, B. Miller, T.L. Lerud
Evolution of natural history information in the 21st century – developing an integrated framework for biological and geographical data Evolution of natural history information in the 21st century – developing an integrated framework for biological and geographical data
Threats to marine and estuarine species operate over many spatial scales, from nutrient enrichment at the watershed/estuarine scale to invasive species and climate change at regional and global scales. To help address research questions across these scales, we provide here a standardized framework for a biogeographical information system containing queriable biological data that allows...
Authors
Deborah A. Reusser, Henry Lee
Estimating the hatchery fraction of a natural population: a Bayesian approach Estimating the hatchery fraction of a natural population: a Bayesian approach
There is strong and growing interest in estimating the proportion of hatchery fish that are in a natural population (the hatchery fraction). In a sample of fish from the relevant population, some are observed to be marked, indicating their origin as hatchery fish. The observed proportion of marked fish is usually less than the actual hatchery fraction, since the observed proportion is...
Authors
Jarrett J. Barber, Kenneth G. Gerow, Patrick J. Connolly, Sarabdeep Singh
Catfish population characteristics in tailwater and reservoir habitats of the Coosa River, Alabama Catfish population characteristics in tailwater and reservoir habitats of the Coosa River, Alabama
No abstract available.
Authors
Jeff C. Jolley, Elise R. Irwin
Nearshore biological communities prior to the removal of the Elwha River dams: Chapter 6 in Coastal habitats of the Elwha River, Washington--biological and physical patterns and processes prior to dam removal Nearshore biological communities prior to the removal of the Elwha River dams: Chapter 6 in Coastal habitats of the Elwha River, Washington--biological and physical patterns and processes prior to dam removal
Increases in sediment delivery to coastal waters are expected following removal of dams on the Elwha River, Washington, potentially increasing sediment deposition on the seafloor and suspended sediment in the water column. Biological communities inhabiting shallow, subtidal depths (3–18 m) near the mouth of the Elwha River, between the west end of Freshwater Bay and the base of Ediz Hook...
Authors
Stephen P. Rubin, Ian M. Miller, Nancy Elder, Reginald R. Reisenbichler, Jeffrey J. Duda
Summary and anticipated responses to Elwha River dam removal: Chapter 9 in Coastal habitats of the Elwha River, Washington--biological and physical patterns and processes prior to dam removal Summary and anticipated responses to Elwha River dam removal: Chapter 9 in Coastal habitats of the Elwha River, Washington--biological and physical patterns and processes prior to dam removal
Starting in September 2011, the removal of two large dams on the Elwha River will begin an unprecedented river restoration project because of the size of the dams, the volume of sediment released, the pristine watershed upstream of the dam sites, and the potential for renewing salmon populations. Ecosystem studies of the Elwha watershed indicate that the effects of almost 100 years of...
Authors
Guy Gelfenbaum, Jeffrey J. Duda, Jonathan A. Warrick
Anticipated sediment delivery to the lower Elwha River during and following dam removal: Chapter 2 in Coastal habitats of the Elwha River, Washington--biological and physical patterns and processes prior to dam removal Anticipated sediment delivery to the lower Elwha River during and following dam removal: Chapter 2 in Coastal habitats of the Elwha River, Washington--biological and physical patterns and processes prior to dam removal
During and after the planned incremental removal of two large, century-old concrete dams between 2011 and 2014, the sediment-transport regime in the lower Elwha River of western Washington will initially spike above background levels and then return to pre-dam conditions some years after complete dam removal. Measurements indicate the upper reaches of the steep-gradient Elwha River...
Authors
Christiana R. Czuba, Timothy J. Randle, Jennifer A. Bountry, Christopher S. Magirl, Jonathan A. Czuba, Christopher A. Curran, Christopher P. Konrad
Detection of Viral Hemorrhagic Septicemia Virus by Quantitative Reverse Transcription Polymerase Chain Reaction from Two Fish Species at Two Sites in Lake Superior Detection of Viral Hemorrhagic Septicemia Virus by Quantitative Reverse Transcription Polymerase Chain Reaction from Two Fish Species at Two Sites in Lake Superior
Viral hemorrhagic septicemia virus (VHSV) was first detected in the Laurentian Great Lakes in 2005 during a mortality event in the Bay of Quinte, Lake Ontario. Subsequent analysis of archived samples determined that the first known isolation of VHSV in the Laurentian Great Lakes was from a muskellunge Esox masquinongy collected in Lake St. Clair in 2003. By the end of 2008, mortality...
Authors
Emily R. Cornwell, Geofrey E. Eckerlin, Rodman G. Getchell, Geoffrey H. Groocock, Tarin M. Thompson, William N. Batts, Rufina N. Casey, Gael Kurath, James R. Winton, Paul R. Bowser, Mark B. Bain, James W. Casey
Wind River watershed restoration, annual report November 2009 to October 2010. Wind River watershed restoration, annual report November 2009 to October 2010.
This report summarizes work completed by U.S. Geological Survey’s Columbia River Research Laboratory (USGS-CRRL) in the Wind River subbasin during the period November 2009 through October 2010 under Bonneville Power Administration (BPA) contract 46102. Long term research in the Wind River has focused on assessments of steelhead/rainbow trout Oncorhynchus mykiss populations, interactions...
Authors
P.J. Connolly, I.G. Jezorek
Effect of dietary salt on migration and survival of yearling steelhead produced at Iron Gate Hatchery, Klamath River, 2009 Effect of dietary salt on migration and survival of yearling steelhead produced at Iron Gate Hatchery, Klamath River, 2009
We surgically implanted radio transmitters into 30 hatchery yearling steelhead (Oncorhynchus mykiss) released from Iron Gate Hatchery during the spring of 2009 to improve our understanding of the effect of dietary salt on their out-migration and survival. Steelhead yearlings were divided into two feed treatments to test the efficacy of a salt-enriched feed in promoting out-migration...
Authors
S. Juhnke, H. Hansel, Katrina Wright, N. Hetrick
Validation of a freshwater Otolith microstructure pattern for Nisqually Chinook Salmon (Oncorhynchus tshawytscha) Validation of a freshwater Otolith microstructure pattern for Nisqually Chinook Salmon (Oncorhynchus tshawytscha)
The Nisqually Fall Chinook salmon (Oncorhynchus tshawytscha) population is one of 27 stocks in the Puget Sound (Washington) evolutionarily significant unit listed as threatened under the federal Endangered Species Act (ESA). Extensive restoration of the Nisqually River delta ecosystem has taken place to assist in recovery of the stock since estuary habitat is a critical transition zone...
Authors
Angie Lind-Null, Kim Larsen