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Western Fisheries Research Center

Research at the WFRC focuses on the environmental factors responsible for the creation, maintenance, and regulation of fish populations including their interactions in aquatic communities and ecosystems. Within these pages you will find research information on Pacific salmon; western trout, charr, and resident riverine fishes; desert and inland fishes; aquatic ecosystems and their resources. 

News

Exclusive: Happy Holidays from the Western Fisheries Research Center!

Exclusive: Happy Holidays from the Western Fisheries Research Center!

Congratulations to Chris Pullano for Winning this Issue's Photo Contest!

Congratulations to Chris Pullano for Winning this Issue's Photo Contest!

Director's Message: To All of Our Partners, Thank You!

Director's Message: To All of Our Partners, Thank You!

Publications

Unveiling a legacy of fish introductions to mountain lakes using historical records and eDNA surveys in a National Park Unveiling a legacy of fish introductions to mountain lakes using historical records and eDNA surveys in a National Park

Across the western United States, introductions of non-native fish into historically fishless mountain lakes have impacted native biota. Understanding the impacts of fish introductions is essential for conservation in Olympic National Park, a Biosphere Reserve. We reconstructed fish plantings using records dating back to 1930, followed by environmental DNA (eDNA) surveys to estimate the...
Authors
Samuel J. Brenkman, Jeffrey J. Duda, Rebecca M. McCaffery, Katie E. Kierczynski, Marshal S. Hoy, Trevor J. Kumec,  William Baccus, Caren Suzanne Goldberg, Carl O. Ostberg, Steven C. Fradkin

Roadway runoff induced acute mortality in juvenile coho salmon during spring storm events Roadway runoff induced acute mortality in juvenile coho salmon during spring storm events

Extensive mortalities of adult coho salmon (Oncorhynchus kisutch), often called “Urban Runoff Mortality Syndrome” (URMS), have been documented during the fall in creeks where water quality has been degraded by roadway runoff. The primary cause of mortality is 6PPD-quinone (6PPDQ; N-(1,3-dimethylbutyl)-N′-phenyl-p-phenylenediamine quinone)–an ozone transformation product that forms on all...
Authors
Marlee L. Brown, Nathan Ivy, Melissa Gonzalez, Justin Blaine Greer, John D. Hansen, Edward Kolodziej, Jenifer K. McIntyre

Gas bubble trauma progression and mortality in sculpin, threespine stickleback, and Northern pikeminnow Gas bubble trauma progression and mortality in sculpin, threespine stickleback, and Northern pikeminnow

We examined the progression of gas bubble trauma (GBT) and associated mortality in sculpin (Cottus spp.), threespine stickleback (Gasterosteus aculeatus), and Northern pikeminnow (Ptychocheilus oregonensis) exposed to three levels of total dissolved gas (TDG; 120, 125, and 130% saturation) in laboratory experiments. Sculpin were most sensitive to elevated TDG followed by stickleback and...
Authors
Kenneth F. Tiffan, Brad D. Liedtke

Science

The Science of Suckers: What’s driving population declines in the Klamath River basin?

USGS and its partners are working tirelessly to monitor suckers and understand why they are disappearing from lakes and streams in the Klamath River Basin
The Science of Suckers: What’s driving population declines in the Klamath River basin?

The Science of Suckers: What’s driving population declines in the Klamath River basin?

USGS and its partners are working tirelessly to monitor suckers and understand why they are disappearing from lakes and streams in the Klamath River Basin
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Where land meets sea: USGS science for resilient coastal habitats

USGS coastal science plays a critical role in supporting the effective, science-based management of coastal ecosystems, where the biodiversity of land and sea meet. It provides managers with the information they need to make sound decisions. Through cutting-edge research, predictive modeling, and decision-support tools, USGS empowers resource managers to make informed, science-based choices. From...
Where land meets sea: USGS science for resilient coastal habitats

Where land meets sea: USGS science for resilient coastal habitats

USGS coastal science plays a critical role in supporting the effective, science-based management of coastal ecosystems, where the biodiversity of land and sea meet. It provides managers with the information they need to make sound decisions. Through cutting-edge research, predictive modeling, and decision-support tools, USGS empowers resource managers to make informed, science-based choices. From...
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