Fish Species

Fish Species by Watersheds : 'Mormon Creek-Stanislaus River-180400100605'

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 Bullhead

  • Ameiurus melas
  • No

  • Thumbnail. Black bullhead, approximately 15 cm (6”) long. Location: Suisun Marsh, California Date: 8/6/2007. Photo by Dave Giordano.

Brown Bullhead

  • Ameiurus nebulosus
  • No

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

Central California Roach

  • Lavinia symmetricus symmetricus
  • Yes

  • Thumbnail. California roach. Captured from the Gualala River. Photo by Carl Page, ARS Consulting.

Central Valley Fall Chinook Salmon

  • Oncorhynchus tshawytscha
  • Yes

  • Thumbnail. Chinook salmon. Spring-run Chinook salmon (female spawner) swimming in Butte Creek, CA on 14 September 2006. Photo - Lisa Thompson, UC Davi

Central Valley late Fall Chinook Salmon

  • Oncorhynchus tshawytscha
  • Yes

  • Thumbnail. Chinook salmon. Spring-run Chinook salmon (female spawner) swimming in Butte Creek, CA on 14 September 2006. Photo - Lisa Thompson, UC Davi

Central Valley spring Chinook Salmon

  • Oncorhynchus tshawytscha
  • Yes

  • Thumbnail. Chinook salmon. Spring-run Chinook salmon (female spawner) swimming in Butte Creek, CA on 14 September 2006. Photo - Lisa Thompson, UC Davi

Central Valley Steelhead

  • Oncorhynchus mykiss
  • Yes

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

Common Carp

  • Cyprinus carpio
  • No

  • Thumbnail. Common carp approximately 18 cm (7”) long. Location: Suisun Marsh, California. Date: 8/8/2008. 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.

Hardhead

  • Mylopharodon conocephalus
  • Yes

  • Thumbnail. Hardhead, adult, right side. Location: Center for Aquatic Biology and Aquaculture, UC Davis. Date: 17 May 2007. Photo by Dave Giordano.

Redeye Bass

  • Micropterus coosae
  • No

  • Thumbnail. Redeye bass, adult. Caught in eastern USA. Photo courtesy of Drew Gregory.

Sacramento Hitch

  • Lavinia exilicauda exilicauda
  • Yes

  • Thumbnail. Hitch adult. Photo courtesy of Professor Peter B. Moyle.

Sockeye (Kokanee) Salmon

  • Onchorynchus nerka
  • No

  • Thumbnail. Kokanee salmon. Location: Kootenay Lake, BC, Canada, Date: circa 1994, Photo by Lisa Thompson.

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.