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.

EMA Animal Welfare Assurance Website

Imperiled Species Research

Imperiled Species Research

Forty percent of all fish species in North America are at risk of extinction. USGS research is crucial to protect and manage at-risk species and healthy fish populations into the future.

Learn More

Drought and Ecological Flows

Drought and Ecological Flows

As part of the USGS Fisheries program, ecological flows, or the relationships between quality, quantity, and timing of water flows and ecological response of aquatic biota and ecosystems; and related ecosystem services are being investigated.

Find Out More

View Our Fisheries Research

View Our Fisheries Research

USGS scientists study life history, population ecology, and conservation and restoration strategies for aquatic species and the habitats that sustain them.

View by Theme


Date published: April 7, 2021

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

This scientific advancement can lead to the development of new genetic markers that will help scientists distinguish between pallid sturgeon and the shovelnose sturgeon, another sturgeon species that looks similar but is more common.

Date published: March 13, 2017

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

The water in the Delta arrives primarily from the Sacramento and San Joaquin Rivers, supplying water for more than 22 million people. This water source supports California’s trillion-dollar economy—the sixth largest in the world—and its $27 billion agricultural industry.

Date published: November 16, 2016

USGS Study Reveals Interactive Effects of Climate Change, Invasive Species on Native Fish

A new USGS study shows non-native Brown Trout can place a burden on native Brook Trout under the increased water temperatures climate change can cause.


Publication Thumbnail
Year Published: 2021

Identifying resting locations of a small elusive forest carnivore using a two-stage model accounting for GPS measurement error and hidden behavioral states

Studies of animal movement using location data are often faced with two challenges. First, time series of animal locations are likely to arise from multiple behavioral states (e.g., directed movement, resting) that cannot be observed directly. Second, location data can be affected by measurement error, including failed location fixes....

Hance, Dalton; Moriarty, Katie M.; Hollen, Bruce A.; Perry, Russell

Publication Thumbnail
Year Published: 2021

Exploration of the 2016 Yellowstone River fish kill and proliferative kidney disease in wild fish populations

Proliferative kidney disease (PKD) is an emerging disease that recently resulted in a large mortality event of salmonids in the Yellowstone River (Montana, USA). Total PKD fish mortalities in the Yellowstone River were estimated in the tens of thousands, which resulted in a multi‐week river closure and an estimated economic loss of US$500,000....

Hutchins, Patrick Ross; Sepulveda, Adam J.; Hartikainen, Hanna; Staigmiller, Ken D.; Opitz, Scott T.; Yamamoto, Renee M.; Huttinger, Amberly; Cordes, Rick J.; Weiss, Tammy; Hopper, Lacey R.; Purcell, Maureen K.; Okamura, Beth

Publication Thumbnail
Year Published: 2021

A systematic review of potential habitat suitability for the jaguar Panthera onca in central Arizona and New Mexico, USA

In April 2019, the U.S. Fish and Wildlife Service (USFWS) released its recovery plan for the jaguar Panthera onca after several decades of discussion, litigation and controversy about the status of the species in the USA. The USFWS estimated that potential habitat, south of the Interstate-10 highway in Arizona and New Mexico, had a...

Sanderson, Eric W; Fisher, Kim; Peters, Rob; Beckmann, Jon P.; Bird, Bryan; Bradley, Curtis; Bravo, Juan; Grigione, Melissa M.; Hatten, James; Gonzalez, Carlos; Menke, Kurt; Miller, Jennie; Miller, Philip; Mormorunni, Cristina; Robinson, Michael; Thomas, Robert E; Wilcox, Sharon