Fish Species

Fish Species by Watersheds : 'Thomas Creek-Eel River-180101030503'

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

Inland Threespine Stickleback

  • Gasterosteus aculeatus microcephalus
  • Yes

  • Thumbnail. Threespine stickleback (armored). Location: Sacramento-San Joaquin River Delta. Date: 16 April 2011. Photo by Christopher Mosser, UC Davis.

Northern California Coast Summer 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.

Northern California Coast Winter 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.

River Lamprey

  • Lampetra ayersi
  • Yes

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

Western Brook Lamprey

  • Lampetra richardsoni
  • Yes

  • Thumbnail. Western brook lamprey. Location: Prairie Creek, CA. Date: 2011. Photo by Michael Sparkman, CDFW.