Images

This is a map of the nets on the Upper Klamath Lake in Oregon. The Western Fisheries Research Center carefully monitors juvenile Sucker populations for signs of population recovery and to better understand where they habitate.

Ramona Rapp is preparing the surgery station where adult Lost River suckers are surgically implanted with acoustic telemetry transmitters. This study is being conducted to understand seasonal survival and habitat use of Lost River suckers in Upper Klamath Lake.

Chris Pullano and Evan Hockett setting out early morning to reconfigure acoustic telemetry receivers on Upper Klamath Lake, Oregon. Receivers were deployed under ice cover all winter to understand winter movements and habitat use by endangered Lost River suckers.

Matt Sholtis, Brian Hayes, and Evan Hockett returning from a rough day on the water, where they retrieved acoustic telemetry receivers that were set under ice cover all winter to track winter movements of endangered Lost River suckers in Upper Klamath Lake, Oregon. 

Sarah Flores presenting her lab's work at the 2025 International Symposium on Fish Parasites in Mérida Yucatán, Mexico. Sarah Flores works with the Western Fisheries Research Center in Seattle, WA to help suckers in the Upper Klamath Lake in Klamath Falls, OR.

Sarah Flores collecting snails from the marshes of Upper Klamath Lake. At the Western Fisheries Research Center, scientists are conducting research on parasites in Upper Klamath Lake, Klamath Falls, OR.

Local snail screening set up in Klamath Falls, OR at the Bureau of Reclamation facility. Five snails per tank on the right and cups with one snail on the left.

This is a photo of fish pathogenic cercariae collected from intermediate snail hosts. The Western Fisheries Research Center (WFRC) is working to determine the extent of the effects of these parasitic organisms on suckers in Klamath Falls, OR. Top: Diplostomum gavium; Bottom: Bolbophorus sp.

This is a landscape photo of the Klamath River with mountains on either side of the photo. The Western Fisheries Research Center is researching the effects of flow management before and after dam removal on juvenile Chinook salmon survival to the ocean. 

Collin Smith and Georgia Martin are inserting passive integrated transponders in juvenile Chinook Salmon at Fall Creek Hatchery, California to track their movements. Data are collected for each fish, including length, weight, and the individual number of the inserted tag.

This is a photograph of Ryan Byrne, a scientist at the Klamath Falls Field Station in Klamath Falls, OR. He is a part of the Western Fisheries Research Center.

The Western Fisheries Research Center (WFRC) is partnering with the U.S. Bureau of Reclamation to discuss ways to monitor fish passage at Keno Dam. With the recent removal of four mainstem dams along the Klamath River, Keno Dam now stands as the most downstream fish passage challenge , and the first major obstacle for migrating salmon returning upstream.

This is Keno Dam, in Klamath, OR. The Western Fisheries Research Center (WFRC) is doing work here to ensure proper fish passage is functioning and to provide science to help better address the water needs of the Klamath River Basin.

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 a sunset in August, 2024 in Klamath Falls, OR. The Western Fisheries Research Center (WFRC) conducts work on fish health and monitoring in this area.

Multi-tribal ceremonial release of adult Chinook to the Spokane River during 2022 National American Fisheries Society meeting. Here, fish biologist, Jill Hardiman, participates in the event by releasing an adult Chinook salmon into the Spokane River.

Multi-tribal ceremonial release of adult Chinook to the Spokane River during 2022 National American Fisheries Society Meeting. Here, people line up to participate in ceremonial multi-tribal fish release in the Spokane River.

Multi-tribal ceremonial release of adult Chinook to the Spokane River during 2022 National American Fisheries Society Meeting. Here, fish biologist Ian Jezorek participates in ceremonial multi-tribal fish release in the Spokane River.

Overhead view of the Spokane River, where adult Chinook salmon were released during a multi-tribal ceremonial fish release. During 2022 National American Fisheries Society, many scientists and citizens took part in a ceremonial fish release. Adult Chinook salmon are currently blocked by dams and unable travel upstream to their historic range.

White River spinedace. Photo taken Wayne E. Kirch Wildlife Management Area, Lund, NV.

White River spinedace. Photo taken by Summer Burdick, USGS, Klamath Falls Field Station.