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Fisheries Program

Our fisheries researchers are world-class scientists. They conduct cutting-edge research to provide fisheries resource managers the scientific information they need to protect, restore, and enhance our Nation’s fisheries and their habitats.

News

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Media Alert: Portions of Missouri River to change color temporarily as USGS releases dye to study endangered pallid sturgeon

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USGS, Southern Illinois University researchers advance genome mapping for critically-endangered sturgeon

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Water managers explore new strategies to protect fish in California’s Bay Delta

Publications

Reconnecting the Elwha River: Spatial patterns of fish response to dam removal

The removal of two large dams on the Elwha River was completed in 2014 with a goal of restoring anadromous salmonid populations. Using observations from ongoing field studies, we compiled a timeline of migratory fish passage upstream of each dam. We also used spatially continuous snorkeling surveys in consecutive years before (2007, 2008) and after (2018, 2019) dam removal during summer baseflow t

Growth, survival, and cohort formation of juvenile Lost River (Deltistes luxatus) and shortnose suckers (Chasmistes brevirostris) in Upper Klamath Lake, Oregon, and Clear Lake Reservoir, California—2019 Monitoring Report

Populations 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 due to adult mortality, which is relatively low, but also because they are not being

Synthesis of habitat availability and carrying capacity research to support water management decisions and enhance conditions for Pacific salmon in the Willamette River, Oregon

Flow management is complex in the Willamette River Basin where the U.S. Army Corps of Engineers owns and operates a system of 13 dams and reservoirs (hereinafter Willamette Project), which are spread throughout three large tributaries including the Middle Fork Willamette, McKenzie, and Santiam Rivers. The primary purpose of the Willamette Project is flood-risk management, which provides critical p

Science

Alosine Genetic Stock Identification and Tissue Repository

American Shad (Alosa sapidissima), Blueback Herring (Alosa aestivalis), and Alewife (Alosa pseudoharengus; collectively “alosines”) once supported large fisheries along the U.S. Atlantic Coast. However, impassable migration barriers, declines in habitat quality, and exploitation have led to declines in many spawning populations. Substantial resources have been invested to support the recovery of...
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Alosine Genetic Stock Identification and Tissue Repository

American Shad (Alosa sapidissima), Blueback Herring (Alosa aestivalis), and Alewife (Alosa pseudoharengus; collectively “alosines”) once supported large fisheries along the U.S. Atlantic Coast. However, impassable migration barriers, declines in habitat quality, and exploitation have led to declines in many spawning populations. Substantial resources have been invested to support the recovery of...
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Phylogenetics of Ichthyophonus parasites

Ichthyophonus spp. are perhaps the most economically and ecologically important parasites of wild marine fish in the world.
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Phylogenetics of Ichthyophonus parasites

Ichthyophonus spp. are perhaps the most economically and ecologically important parasites of wild marine fish in the world.
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PCB Exposure and Disease Susceptibility

Researchers at that MMFS are experimentally determining the impacts of high PCB body burdens on the immunocompetency and disease susceptibility of Pacific herring.
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PCB Exposure and Disease Susceptibility

Researchers at that MMFS are experimentally determining the impacts of high PCB body burdens on the immunocompetency and disease susceptibility of Pacific herring.
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