Images

This is a photo of pelicans on the Upper Klamath Lake in Klamath Falls, OR. The USGS Western Fisheries Research Center (WFRC) has a field station in Klamath Falls. Scientists at the WFRC monitor suckers in the Upper Klamath Lake.

This is a photo of the fisheries scientist, Paul Hershberger, fishing for salmon predators in Lake Washington.

Fish health monitoring efforts in Upper Klamath Lake have revealed a high prevalence of warmwater pathogens. The fish health team is investigating parasites as a potential threat to the vulnerable sucker populations.

This is a photo of Paul Hershberger at Marrowstone Marine Field Station Lab. Dr. Hershberger studies diseases in fish.

Sophie Hall, a research technician with the Western Fisheries Research Center, setting up parasite shedding experiments with snails collected from the Upper Klamath Lake, OR.

Snails collected from Upper Klamath Lake are being used in experiments in the Western Fisheries Research Center’s Seattle Laboratory to study the impacts of eye flukes on the health of endangered suckers.

Explore the underwater world of Skagit Bay eelgrass meadows where a diverse group of fish are visible, including the elegant Pacific Herring school , the unusual Snake Prickleback, the striking Pacific Spiny Dogfish, the graceful Shiner Perch, and the majestic juvenile Chinook Salmon.

This is a photo of the new USGS Western Fisheries Research Center Columbia River Research Laboratory building.

Director Applegate and staff from Western Fisheries Research Center pose in front of the newly painted mural at the Western Fisheries Research Center’s headquarters. The mural features three swimming salmon, a DNA helix, a microscope, and the USGS logo. 

Director Applegate visited Western Fisheries Research Center Headquarters in Seattle, WA.

Director Applegate visited Western Fisheries Research Center Headquarters in Seattle, WA.

Director Applegate visited Western Fisheries Research Center Headquarters in Seattle, WA.

Technicians deployed Detroit Lake's new water-quality monitoring station in April, 2024.

Director Applegate and staff from Western Fisheries Research Center pose in front of the newly painted mural at the Western Fisheries Research Center’s headquarters. The mural features three swimming salmon, a DNA helix, a microscope, and the USGS logo. (Photo credit: Rachel Reagan, Western Fisheries Research Center)

Cover image for fish screen video filmed at the Columbia River Research Laboratory.

This is an image of Glen Canyon, located in Arizona. Glen Canyon is a natural canyon carved by the Colorado River and located largely in Utah. A small part of the lower end of Glen Canyon extends into northern Arizona and ends at Lee's Ferry, near Glen Canyon Dam. 

Photo (left to right): USGS scientists Georgia Martin and Collin Smith check nets for juvenile fish samples at Glen Canyon Dam, Arizona.

The image above is a photograph of the Glen Canyon Dam (GCD) in Arizona. Recent captures of non-native fishes in the Colorado River downstream of GCD indicate a potential threat to imperiled native fish in the Grand Canyon.

WFRC scientist Lisa Wetzel uses a fluorescing stereoscope to look for microplastics in samples of Smallmouth Bass tissue provided by the Nez Perce Tribe, Idaho.

Juvenile Coho salmon (Oncorhynchus kisutch) behavior is assessed following exposure to 6PPD-quinone, a derivative of the compound 6PPD which is used in tires to prevent wear.

This is a drone photo of the bio-acoustic fish fence in the Georgiana Slough, a tributary of the Sacramento River Delta. It is used to guide fish safely out to the ocean.