University of California
California Fish Website

Fish Species

Freshwater native and non-native fish species present currently and/or historically, determined from the PISCES database (Feb. 26, 2014).  Some species, such as salmon or steelhead, may no longer be present upstream of dams that lack fish passage.

Yes/No corresponds to California native species

Black Crappie

Pomoxis nigromaculatus
No

Thumbnail. Black crappie, captured in rotary screw trap on the Sacramento River at Knight's Landing on 2/26/2009. Photo by Dan Worth, CDFW

Fathead Minnow

Pimephales promelas
No

Thumbnail. Fathead minnow. Photo by Konrad Schmidt, Nongame Fish Biologist, Division of Ecological Services, Minnesota Department of Natural Resources

Golden Shiner

Notemigonus crysoleucas
No

Thumbnail. Golden shiner, caught in Iron Gate Reservoir, California on 12 May 2009 by Teejay O'Rear. Photo by Amber Manfree.

Goldfish

Carassius auratus
No

Thumbnail. Goldfish, captured in rotary screw trap on Sacramento River at Knight's Landing. Date: January 2009. Photo by Dan Worth, CDFW.

Klamath Largescale Sucker

Catostomus snyderi
Yes

Klamath River Lamprey

Entosphenus similis
Yes

Thumbnail. Klamath River lamprey. Captured from the upper Trinity River near river mile 85 on 22 July 2009. Photo courtesy of John Hileman, CDFW.

Klamath Speckled Dace

Rhinichthys osculus klamathensis
Yes

Thumbnail. Speckled dace, approximately 7 cm (3”) long. Date: 7/8/2007. Photo by Dave Giordano.

Pacific Lamprey

Entosphenus tridentata
Yes

Thumbnail. Pacific lamprey, captured in rotary screw trap on Sacramento River at Knight's Landing. Photo by Dan Worth, CDFW.

Sacramento Perch

Archoplites interruptus
Yes

Thumbnail. Sacramento perch, adult male. Captured from Sindicich Lagoon, Martinez, California in May 2001. Photo by Chris Miller, Contra Costa MVCD.

Upper Klamath Marbled Sculpin

Cottus klamathensis klamathensis
Yes

Thumbnail. Marbled sculpin, approximately 7.5 cm (3”) long, taken by Lisa Thompson and Daniel J. Drake. Shasta River, California. 12/16/2003.

Western Mosquitofish

Gambusia affinis
No

Thumbnail. Western mosquitofish, captured in rotary screw trap on Sacramento River at Knight's Landing. Date: 1/29/2009. Photo by Dan Worth, CDFW.

Yellow Perch

Perca flavescens
No

Thumbnail. Yellow perch, caught in Iron Gate Reservoir, California on 13 May 2009 by Teejay O'Rear. Photo by Amber Manfree.

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