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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

Something Fishy from the Western Fisheries Research Center - Fall 2024

Something Fishy from the Western Fisheries Research Center - Fall 2024

Artificial Light at Night: Update From the Field!

Artificial Light at Night: Update From the Field!

Back From The Brink

Back From The Brink

Publications

Outmigration behavior and survival of juvenile Chinook salmon (Oncorhynchus tshawytscha) in response to deep drawdown of the Lookout Point Project, Middle Fork Willamette River, Oregon

An acoustic telemetry study was conducted during August 2023–February 2024 to evaluate outmigration behavior and survival of juvenile Chinook salmon (Oncorhynchus tshawytscha) in the Middle Fork Willamette River, Oregon, during an experimental operation that was designed to facilitate downstream passage through two reservoirs and two dams. The experimental operation consisted of lowering...
Authors
Dalton J. Hance, Tobias J. Kock, Jake R. Kelley, Amy C. Hansen, Russell W. Perry, Scott D Fielding

Using environmental DNA to assess the response of steelhead/Rainbow Trout and Coastrange Sculpin populations to postfire debris flows in coastal streams of Big Sur, California

ObjectiveDebris flows are among the most extreme disturbances to streams and are predicted to become more frequent under climate change. We assessed the response of steelhead Oncorhynchus mykiss (anadromous Rainbow Trout)/Rainbow Trout (hereafter, collectively referred to as O. mykiss) and Coastrange Sculpin Cottus aleuticus populations to major postfire debris flows in two small coastal...
Authors
David E. Rundio, Brian C. Spence, Dorothy M. Chase, Carl Ostberg

Using parentage-based tagging to estimate survival of Chinook salmon fry in a large storage reservoir

Research efforts focusing on salmonid populations have highlighted the need to better understand demographic parameters for the fry and parr life stages. Monitoring these small fish presents a challenge because negative effects from handling and tagging can bias subsequent parameter estimates. Removal models and associated sampling designs represent one class of mark-recapture models...
Authors
Adam Pope, Tobias Kock, Russell Perry, Karen M. Cogliati, Kathleen G. O'Malley, Christina Amy Murphy, Dalton Hance, Scott D. Fielding

Science

Preliminary Research Sheds Light on Proper Analysis and Sample Handling for the Tire-Derived Contaminants 6PPD and 6PPD-quinone

Tire and road wear particles have been shown to cause acute effects to sensitive aquatic animals and degrade their habitats. U.S. Geological Survey (USGS) scientists developed methods to accurately identify aquatic compounds, such as 6PPD and 6PPD-quinone, that can cause acute mortality events in coho salmon (Oncorhynchus kisutch).
link

Preliminary Research Sheds Light on Proper Analysis and Sample Handling for the Tire-Derived Contaminants 6PPD and 6PPD-quinone

Tire and road wear particles have been shown to cause acute effects to sensitive aquatic animals and degrade their habitats. U.S. Geological Survey (USGS) scientists developed methods to accurately identify aquatic compounds, such as 6PPD and 6PPD-quinone, that can cause acute mortality events in coho salmon (Oncorhynchus kisutch).
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Young and Young at Heart

Young and Young-at-Heart is an early-career group based at Moffett Field, CA.
link

Young and Young at Heart

Young and Young-at-Heart is an early-career group based at Moffett Field, CA.
Learn More

6PPD-quinone

6PPD-quinone is a compound used to make tires more durable and is also linked to toxicity for Coho Salmon and other aquatic species.
link

6PPD-quinone

6PPD-quinone is a compound used to make tires more durable and is also linked to toxicity for Coho Salmon and other aquatic species.
Learn More
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