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

Blue Chub

Gila coerulea
Yes

Bluegill

Lepomis macrochirus
No

Thumbnail. Bluegill approximately 15 cm (6”) long. Location: Leonard Lake, California Date: 8/6/2008 Photo: Lisa Thompson

Brown Bullhead

Ameiurus nebulosus
No

Thumbnail. Brown bullhead. Caught in Seneca County, New York. Photo by Arthur Masloski, January 2009.

Coastal Rainbow Trout

Oncorhynchus mykiss irideus
Yes

Thumbnail. Rainbow trout, 18 cm (7”) long. Location: Deer Creek, California (Yuba River basin). Date: 6/21/2007. Photo by Dave Giordano.

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.

Green Sunfish

Lepomis cyanellus
No

Thumbnail. Green sunfish with measurements Location: Leonard Lake, California Date: 8/6/2008 Photo: Lisa Thompson

Klamath Largescale Sucker

Catostomus snyderi
Yes

Klamath Speckled Dace

Rhinichthys osculus klamathensis
Yes

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

Largemouth Bass

Micropterus salmoides
No

Thumbnail. Largemouth bass approximately 30 cm (12”) long. Location: Deer Creek, California Date 6/22/2007. Photo by Dave Giordano.

Lost River Sucker

Catostomus luxatus
Yes

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.

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.

White Crappie

Pomoxis annularis
No

Thumbnail. White crappie. Photo courtesy of Corey Geving, webmaster at roughfish.com.

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