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
Genomic architecture and repertoire of the rainbow trout immunoglobulin light chain genes
The genomic loci encoding the four immunoglobulin light chains (IgL1, IgL2, IgL3, and IgL4) in the Swanson trout genome assembly were annotated in order to provide a measurement of the potential IgL repertoire. IgL1 and IgL3 gene segments are co-localized on chromosomes 21, 18, 15, and 7 while IgL2 and IgL4 were found on chromosomes 13 and 17, respectively. In total, 48 constant (CL), 87 variable
Authors
Katherine Rego, John Hansen, Erin S Bromage
Legacy and current-use toxic contaminants in Pacific sand lance (Ammodytes personatus) from Puget Sound, Washington
Forage fish are primary prey for seabirds, fish and marine mammals. Elevated levels of pollutants in Puget Sound, Washington salmon and killer whale tissues potentially could be sufficiently high to elicit adverse effects and hamper population recovery efforts. Contaminant transfer and biomagnification of the toxic compounds measured in this study likely contribute to those elevated concentrations
Authors
Kathleen E. Conn, Theresa L. Liedtke, Renee K. Takesue, Richard S. Dinicola
Use of environmental DNA to detect the invasive aquatic plants Myriophyllum spicatum and Egeria densa in lakes
Environmental DNA (eDNA) analysis offers a promising tool for rapid and early detection of aquatic plant invasive species, but currently suffers from substantial unknowns that limit its widespread use in monitoring programs. We conducted the first study to test the factors related to eDNA-based detectability of 2 invasive aquatic plants, Egeria densa and Myriophyllum spicatum, over extended period
Authors
Lauren M Kuehne, Carl Ostberg, Dorothy M. Chase, Jeffrey J. Duda, Julian D. Olden
Development of a two-stage life cycle model for Oncorhynchus kisutch (coho salmon) in the upper Cowlitz River Basin, Washington
Recovery of salmon populations in the upper Cowlitz River Basin depends on trap-and-haul efforts owing to impassable dams. Therefore, successful recovery depends on the collection of out-migrating juvenile salmon at Cowlitz Falls Dam (CFD) for transport below downstream dams, as well as the collection of adults for transport upstream from the dams. Tacoma Power began downstream fish collection eff
Authors
John M. Plumb, Russell W. Perry
Research, monitoring, and evaluation of emerging issues and measures to recover the Snake River Fall Chinook Salmon ESU: January 2019 - December 2019
The portion of the Snake River fall Chinook salmon Oncorhynchus tshawytscha evolutionary significant unit (ESU) that spawns upstream of Lower Granite Dam transitioned from low to high abundance during 19922019 in association with U.S. Endangered Species Act recovery efforts and other federally mandated actions. This annual report focuses on (1) numeric and habitat use responses by natural- and hat
Evidence for rapid gut clearance of microplastic polyester fibers fed to Chinook Salmon: A tank study
Marine and freshwater plastic pollution is a challenging issue receiving large amounts of research and media attention. Yet, few studies have documented the impact of microplastic ingestion to aquatic organisms. In the Pacific Northwest, Chinook salmon are a culturally and commercially significant fish species. The presence of marine and freshwater microplastic pollution is well documented in Chin
Authors
Andrew R. Spanjer, Theresa L. Liedtke, Kathleen E. Conn, Lisa K. Weiland, Robert W. Black, Nathan Godfrey
Effects of harmful algal blooms and associated water-quality on endangered Lost River and shortnose suckers
Anthropogenic eutrophication contributes to harmful blooms of cyanobacteria in freshwater ecosystems worldwide. In Upper Klamath Lake, Oregon, massive blooms of Aphanizomenon flos-aquae and smaller blooms of other cyanobacteria are associated with cyanotoxins, hypoxia, high pH, high concentrations of ammonia, and potentially hypercapnia. Recovery of the endangered Lost River sucker Deltistes luxat
Authors
Summer M. Burdick, David A. Hewitt, Barbara A. Martin, Liam N. Schenk, Stewart A. Rounds
Juvenile Lost River and shortnose sucker year-class formation, survival, and growth in Upper Klamath Lake, Oregon, and Clear Lake Reservoir, California—2018 monitoring report
Executive SummaryPopulations of federally endangered Lost River (Deltistes luxatus) and shortnose suckers (Chasmistes brevirostris) in Upper Klamath Lake, Oregon, and Clear Lake Reservoir (hereinafter Clear Lake), California, are experiencing long-term decreases in abundance. Upper Klamath Lake populations are decreasing not only because of adult mortality, which is relatively low, but also becaus
Authors
Ryan J. Bart, Summer M. Burdick, Marshal S. Hoy, Carl O. Ostberg
Fish and habitat assessment in Rock Creek, Klickitat County, southeastern Washington, 2018
Executive SummaryNative steelhead (anadromous form of rainbow trout [Oncorhynchus mykiss]) and bridgelip sucker (Catostomus columbianus) were historically used by the Kah-miltpah (Rock Creek) Band for sustenance, trade, and traditional practices in Rock Creek, a tributary to the Columbia River in southeastern Washington State. Rock Creek flows south to the Columbia River at river kilometer (rkm) 3
Authors
Jill M. Hardiman
Development of a quantitative PCR assay for detecting Egeria densa in environmental DNA samples
Brazilian elodea (Egeria densa) is an invasive freshwater plant that demonstrates widespread ecological impacts in freshwater ecosystems and causes substantial economic damage. Here, we developed an environmental DNA assay for detection of E. densa to provide resource managers with a tool for early detection, identification, and monitoring of invasive populations.
Authors
Dorothy M. Chase, Lauren M Kuehne, Julian D. Olden, Carl Ostberg
Consequences of Piscine orthoreovirus genotype 1 (PRV‐1) infections in Chinook salmon (Oncorhynchus tshawytscha ), coho salmon (O. kisutch ) and rainbow trout (O. mykiss )
Piscine orthoreovirus genotype 1 (PRV‐1) is the causative agent of heart and skeletal muscle inflammation (HSMI) in farmed Atlantic salmon (Salmo salar L.). The virus has also been found in Pacific salmonids in western North America, raising concerns about the risk to native salmon and trout. Here, we report the results of laboratory challenges using juvenile Chinook salmon, coho salmon and rainbo
Authors
Maureen K. Purcell, Rachel L. Powers, Torunn Taksdal, Douglas Mckenney, Carla M. Conway, Diane G. Elliott, Mark Polinski, Kyle A. Garver, James Winton
Trends in oyster populations in the northeastern Gulf of Mexico: An assessment of river discharge and fishing effects over time and space
Within the Big Bend region of the northeastern Gulf of Mexico, one of the least developed coastlines in the continental USA, intertidal and subtidal populations of eastern oyster Crassostrea virginica (hereafter referred to as “oyster”) are a critical ecosystem and important economic constituent. We assessed trends in intertidal oyster populations, river discharge, and commercial fishing activity
Authors
J. F Moore, W. E Pine, P. C Frederick, Sarah Becker, Marcos Moreno, Michael Dodrill, Matthew Boone, L Sturmer, Simeon Yurek