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

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 Speckled Dace

Rhinichthys osculus klamathensis
Yes

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

Northern California Brook Lamprey

Entosphenus folletti
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.

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.

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.

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