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: 2489
Long-term fish monitoring in large rivers: Utility of “benchmarking” across basins
In business, benchmarking is a widely used practice of comparing your own business processes to those of other comparable companies and incorporating identified best practices to improve performance. Biologists and resource managers designing and conducting monitoring programs for fish in large river systems tend to focus on single river basins or segments of large rivers, missing opportunities to
Authors
David L. Ward, Andrew F. Casper, Timothy D. Counihan, Jennifer M. Bayer, Ian R. Waite, John J. Kosovich, Colin Chapman, Elise R. Irwin, Jennifer S. Sauer, Brian Ickes, Alexa McKerrow
By
Core Science Systems Mission Area, Ecosystems Mission Area, Science Synthesis, Analysis and Research Program, Gap Analysis Project, Science Analytics and Synthesis (SAS) Program, Species Management Research Program, Southwest Biological Science Center, Western Fisheries Research Center, Columbia River Research Laboratory (CRRL)
Molecular characterization of a novel orthomyxovirus from rainbow and steelhead trout (Oncorhynchus mykiss)
A novel virus, rainbow trout orthomyxovirus (RbtOV), was isolated in 1997 and again in 2000 from commercially-reared rainbow trout (Oncorhynchus mykiss) in Idaho, USA. The virus grew optimally in the CHSE-214 cell line at 15°C producing a diffuse cytopathic effect; however, juvenile rainbow trout exposed to cell culture-grown virus showed no mortality or gross pathology. Electron microscopy of pre
Authors
William N. Batts, Scott E. LaPatra, Ryan Katona, Eric Leis, Terry Fei Fan Ng, Marine S.O. Bruieuc, Rachel Breyta, Maureen K. Purcell, Thomas B. Waltzek, Eric Delwart, James Winton
Trophic interactions and consumption rates of subyearling Chinook Salmon and nonnative juvenile American Shad in Columbia River reservoirs
We used a large lampara seine coupled with nonlethal gastric lavage to examine the diets and estimate consumption rates of subyearling Chinook Salmon Oncorhynchus tshawytscha during July and August 2013. During August we also examined the diet and consumption rates of juvenile American Shad Alosa sapidissima, a potential competitor of subyearling Chinook Salmon. Subyearling Chinook Salmon consumed
Authors
Craig A. Haskell, David A. Beauchamp, Stephen M Bollins
Early detection monitoring for larval dreissenid mussels: How much plankton sampling is enough?
The development of quagga and zebra mussel (dreissenids) monitoring programs in the Pacific Northwest provides a unique opportunity to evaluate a regional invasive species detection effort early in its development. Recent studies suggest that the ecological and economic costs of a dreissenid infestation in the Pacific Northwest of the USA would be significant. Consequently, efforts are underway to
Authors
Timothy D. Counihan, Stephen M. Bollens
Detecting Renibacterium salmoninarum in wild brown trout by use of multiple organ samples and diagnostic methods
Renibacterium salmoninarum, the causative agent of salmonid bacterial kidney disease (BKD), is endemic in many wild trout species in northerly regions. The aim of the present study was to determine the optimal R. salmoninarum sampling/testing strategy for wild brown trout (Salmo trutta L.) populations in Iceland. Fish were netted in a lake and multiple organs—kidney, spleen, gills, oesophagus and
Authors
S. Guomundsdottir, Lynn M. Applegate, I.O. Arnason, A. Kristmundsson, Maureen K. Purcell, Diane G. Elliott
Inhibition of an aquatic rhabdovirus demonstrates promise of a broad-spectrum antiviral for use in aquaculture
Many enveloped viruses cause devastating disease in aquaculture, resulting in significant economic impact. LJ001 is a broad-spectrum antiviral compound that inhibits enveloped virus infections by specifically targeting phospholipids in the lipid bilayer via the production of singlet oxygen (1O2). This stabilizes positive curvature and decreases membrane fluidity, which inhibits virus-cell membrane
Authors
Bethany F. Balmer, Rachel L. Powers, Ting-Hu Zhang, Jihye Lee, Frederic Vigant, Benhur Lee, Michael E. Jung, Maureen K. Purcell, Kevin Snekvik, Hector C. Aguilar
Potential distribution of the viral haemorrhagic septicaemia virus in the Great Lakes region
Viral haemorrhagic septicaemia virus (VHSV) genotype IVb has been responsible for large-scale fish mortality events in the Great Lakes of North America. Anticipating the areas of potential VHSV occurrence is key to designing epidemiological surveillance and disease prevention strategies in the Great Lakes basin. We explored the environmental features that could shape the distribution of VHSV, base
Authors
Luis E. Escobar, Gael Kurath, Joaquim Escobar-Dodero, Meggan E. Craft, Nicholas B.D. Phelps
Preliminary evaluation of the behavior and movements of adult spring Chinook salmon in the Chehalis River, southwestern Washington, 2014
Recent interest in flood control and restoration strategies in the Chehalis River Basin has increased the need to understand the current status and ecology of spring Chinook salmon (Oncorhynchus tshawytscha). Spring Chinook salmon have the longest exposure of all adult Chinook salmon life histories to the low-flow and high water temperature conditions that typically occur during summer. About 100
Authors
Theresa L. Liedtke, William R. Hurst, Ryan G. Tomka, Tobias J. Kock, Mara S. Zimmerman
In memoriam - William Toshio (Tosh) Yasutake, 1922-2016
William Toshio (Tosh) Yasutake, 1922-2016 passed away peacefully at home on December 12, 2016, at the age of 94. He is survived by Fumi, his wife of 66 years, as well as four children and six grandchildren. With his death, the fish health community has lost an outstanding scientist as well as a kind, unassuming, and wonderful human being. Tosh was born on June 10, 1922, in Seattle, Washington, to
Authors
Diane G. Elliott, James R. Winton
Identifying western yellow-billed cuckoo breeding habitat with a dual modelling approach
The western population of the yellow-billed cuckoo (Coccyzus americanus) was recently listed as threatened under the federal Endangered Species Act. Yellow-billed cuckoo conservation efforts require the identification of features and area requirements associated with high quality, riparian forest habitat at spatial scales that range from nest microhabitat to landscape, as well as lower-suitability
Authors
Matthew J. Johnson, James R. Hatten, Jennifer A. Holmes, Patrick B. Shafroth
Herring Disease Program – Herring Disease Program II
No abstract available.
Authors
Paul Hershberger, Maureen K. Purcell
Infectious hematopoietic necrosis virus virological and genetic surveillance 2000–2012
Surveillance records of the acute RNA pathogen of Pacific salmonid fish infectious hematopoietic necrosis virus are combined for the first time to enable landscape-level ecological analyses and modeling. The study area is the freshwater ecosystems of the large Columbia River watershed in the U.S. states of Washington, Oregon, and Idaho, as well as coastal rivers in Washington and Oregon. The study
Authors
Rachel Breyta, Ilana L. Brito, Gael Kurath, Shannon L. LaDeau