Western Fisheries Research Center

Publications

Below is a list of available WFRC peer reviewed and published science.

Filter Total Items: 2,354
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Year Published: 2020

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...

Hardiman, Jill M.
Hardiman, J.M., 2020, Fish and habitat assessment in Rock Creek, Klickitat County, southeastern Washington, 2018: U.S. Geological Survey Open-File Report 2020–1051, 44 p., including appendixes, https://doi.org/10.3133/ofr20201051.

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Year Published: 2020

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...

Chase, Dorothy M.; Kuehne, Lauren M; Olden, Julian D.; Ostberg, Carl

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Year Published: 2020

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...

Purcell, Maureen K.; Powers, Rachel L.; Taksdal, Torunn; Mckenney, Douglas; Conway, Carla M.; Elliott, Diane G.; Polinski, Mark; Garver, Kyle A.; Winton, James

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Year Published: 2020

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...

Moore, J. F; Pine, W. E; Frederick, P. C; Becker, Sarah; Moreno, Marcos; Dodrill, Michael; Boone, Matthew; Sturmer, L; Yurek, Simeon

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Year Published: 2020

Behavior and movement of adult winter steelhead (Oncorhynchus mykiss) in the upper Cowlitz River Basin, Washington, 2017–18

Executive SummaryA 2-year radiotelemetry study was completed to monitor the movements of adult winter steelhead (Oncorhynchus mykiss) in the upper Cowlitz River Basin. A reintroduction program was established to restore healthy and harvestable populations of steelhead because volitional access to the area was blocked in the 1960s after...

Liedtke, Theresa L.; Kock, Tobias J.; Hansen, Amy C.; Ekstrom, Brian K.; Tomka, Ryan G.
Liedtke, T.L., Kock, T.J., Hansen, A.C., Ekstrom, B.K., and Tomka, R.G., 2020, Behavior and movement of adult winter steelhead (Oncorhynchus mykiss) in the upper Cowlitz River Basin, Washington, 2017–18: U.S. Geological Survey Open-File Report 2020–1054, 35 p., https://doi.org/10.3133/ofr20201054.

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Year Published: 2020

Variable prey consumption leads to distinct regional differences in Chinook salmon growth during the early marine critical period

Growth during the early marine critical period is positively associated with survival and recruitment for Pacific salmon Oncorhynchus spp., so it is important to understand how certain foraging strategies may bolster growth in estuarine and marine environments. To elucidate how spatiotemporal and demographic differences in diet...

Davis, Melanie J; Chamberlin, Joshua W.; Gardner, Jennifer R.; Connelly, Kristin A.; Gamble, Madilyn M.; Beckman, Brian R; Beauchamp, David

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Year Published: 2020

Evaluation of water temperature effects on adult sockeye salmon (Oncorhynchus nerka) behavior in the Yakima River, Washington, 2019

A study was conducted in the lower Yakima River, Washington, during June–October 2019 to evaluate water temperature effects on adult sockeye salmon (Oncorhynchus nerka) behavior. A total of 60 sockeye salmon adults were tagged with radio transmitters and monitored during the study. Fourteen of the fish were collected and tagged at Prosser Dam in...

Kock, Tobias J.; Evans, Scott D.; Hansen, Amy C.; Ekstrom, Brian K.; Visser, Richard; Saluskin, Brian; Hoffarth, Paul
Kock, T.J., Evans., S.D., Hansen, A.C., Ekstrom, B.K., Visser, R., Saluskin, B., and Hoffarth, P., 2020, Evaluation of water temperature effects on adult sockeye salmon (Oncorhynchus nerka) behavior in the Yakima River, Washington, 2019: U.S. Geological Survey Open-File Report 2020-1033, 15 p., https://doi.org/10.3133/ofr20201033.

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Year Published: 2020

Combining models of the critical streakline and the cross-sectional distribution of juvenile salmon to predict fish routing at river junctions

Because fish that enter the interior Delta have poorer survival than those emigrating via the Sacramento River, understanding the mechanisms that drive entrainment rates at side channel junctions is critically important for the management of imperiled juvenile salmon. Here, we implement a previously proposed process-based conceptual model to study...

Hance, Dalton; Perry, Russell; Burau, Jon R.; Blake, Aaron R.; Stumpner, Paul; Wang, Xiaochung; Pope, Adam

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Year Published: 2020

Herring Disease Program II 19120111-E - 2019 Annual Report

We will investigate fish health factors that may be contributing to the failed recovery of Pacific herring populations in Prince William Sound. Field samples will provide infection and disease prevalence data from Prince William Sound and Sitka Sound that will inform the ASA model, serological data that will indicate the prior exposure history and...

Hershberger, Paul; Purcell, Maureen K.
Hershberger, P., and M. Purcell. 2020. Herring Disease Program II - 2019 Annual Report. EVOSTC Annual Project Report. Project Number 19120111-E. 10 p.

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Year Published: 2020

Final report: Southwestern Willow Flycatcher (Empidonax traillii extimus) and Western Yellow-billed Cuckoo (Coccyzus americanus occidentalis) surveys and habitat availability modeling on the Santa Clara River, California, 26 March 2020

Our project aimed to conduct population surveys for Southwestern Willow Flycatcher (Empidonax trailii extimus; SWFL) and Yellow-billed Cuckoo (Coccyzus americanus; YBCU) in 2018 and 2019, apply existing habitat models to illustrate and predict past, current, and future habitat suitabilities for these two species, and update and standardize...

Hall, Linnea S.; Orr, Bruce K.; Hatten, James; Lambert, Adam; Dudley, Tom L.
Hall, L.S., B.K. Orr, J.R. Hatten, A. Lambert, and T. Dudley. 2020. Final Report: Southwestern Willow Flycatcher (Empidonax traillii extimus) and western Yellow-billed Cuckoo (Coccyzus americanus occidentalis) surveys and habitat availability modeling on the Santa Clara River, California, 26 March 2020. Submitted to the California Department of Fish and Wildlife and the U.S. Fish and Wildlfie Service, 120 p.

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Year Published: 2020

Juvenile Lost River and shortnose sucker year-class formation, survival, and growth in Upper Klamath Lake, Oregon and Clear Lake Reservoir, California—2017 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 referred to as Clear Lake; fig. 1), California, are experiencing long-term declines in abundance. Upper Klamath Lake populations are decreasing...

Bart, Ryan J.; Burdick, Summer M.; Hoy, Marshal S.; Ostberg, Carl O.
Bart, R.J., Burdick, S.M., Hoy, M.S., and Ostberg, C.O., 2020, Juvenile Lost River and shortnose sucker year-class formation, survival, and growth in Upper Klamath Lake, Oregon and Clear Lake Reservoir, California—2017 Monitoring Report: U.S. Geological Survey Open-File Report 2020–1025, 36 p., https://doi.org/10.3133/ofr20201025.

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Year Published: 2020

Evaluating dewatering approaches to protect larval Pacific lamprey

Executive SummaryLarval Pacific lamprey live for several years burrowed in nearshore sediments where they filter feed on detritus and organic matter. Dewatering of larval habitat can occur as a result of flow-management practices, construction projects, or seasonal closures of irrigation diversions. Effective management of dewatering events...

Liedtke, Theresa L.; Weiland, Lisa K.; Skalicky, Joseph J; Gray, Ann E.
Liedtke, T.L., Weiland, L.K., Skalicky. J.J., and Gray, A.E., 2020, Evaluating dewatering approaches to protect larval Pacific lamprey: U.S. Geological Survey Open-File Report 2020–1026, 32 p., https://doi.org/10.3133/ofr20201026.