Multimedia

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. 

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.

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.