Flying fish

Early this week we spotted this osprey (Pandion haliaetus) returning to its nest after catching what appears to be a Sacramento sucker. Osprey are highly specialized hawks Read More…

Survival of the biggest

Predation by large, non-native predators on salmon and steelhead outmigrants has received a lot of popular press in California's Central Valley over the last year. Certainly there Read More…

Postprandial depression

Known for taking up real estate in Pacific harbors, the California sea lion (Zalophus californianus) continues to be a challenge for fisheries managers trying to safeguard federally Read More…

Baby bigmouth

Even baby largemouth bass have big mouths! Largemouth bass have two ecologically distinct life-stages. They begin life feeding on invertebrates and typically switch to preying on fish Read More…

Bird predation

As noted in a previous post feeding frenzy the Department of Water Resources (DWR) conducted a predation study at release locations for the State Water Project (SWP) Read More…

Imitation is the sincerest form of flattery…

As west coast fall-run Chinook salmon migration is winding down, this river otter (Lontra canadensis) keeps one of our underwater fish monitoring cameras busy by repeatedly tripping Read More…

Feeding frenzy

As part of a release site predation study, the California Department of Water Resources (DWR) took this DIDSON video of "salvaged" fish being released in the Delta. Read More…

Salmon as food

It's not uncommon for fish to regurgitate their previous meal due the stress of capture. This brown bullhead threw up the juvenile Chinook salmon as he was Read More…