Facebook logo

 

 

 

 

California 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

Amargosa Canyon Speckled Dace

  • Rhinichthys osculus nevadensis
  • Yes

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

Amargosa River Pupfish

  • Cyprinodon nevadensis amargosae
  • Yes

  • Thumbnail. Amargosa pupfish, left side. Photographed at Ash Meadows, Nevada in April 2006. Photo by Joseph C. Sullivan.

American Shad

  • Alosa sapidissima
  • No

  • Thumbnail. American shad, head. Caught on the Feather River (Star Bend boat launch) on 4 July 2008. Approximately 20 cm TL. Photo by Brian Currier.

Arroyo Chub

  • Gila orcutti
  • Yes

  • Thumbnail. Arroyo chub. Captured from San Antonio Creek (Vandenberg Air Force Base) in 2008. Photo by Carl Page, ARS Consulting.

Bigeye Marbled Sculpin

  • Cottus klamathensis macrops
  • Yes

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

Bigscale Logperch

  • Percina macrolepida
  • No

  • Thumbnail. Bigscale logperch, captured from Putah Creek in November 2008. Photo by Teejay O'Rear, March 2009.

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.

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 Catfish

  • Ictalurus furcatus
  • No

  • Thumbnail. Blue catfish, adult. Caught in Marion, Alabama on 9 February 1994. Photo by Konrad Schmidt, Nongame Fish Biologist, DES, Minn. DNR

Blue Chub

  • Gila coerulea
  • Yes
  • N / A

Bluefin Killifish

  • Lucania goodei
  • No
  • N / A

Bluegill

  • Lepomis macrochirus
  • No

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

Bonytail

  • Gila elegans
  • Yes
  • N / A

Brook Stickleback

  • Culaea inconstans
  • No

  • Thumbnail. Brook stickleback. Photo by Konrad Schmidt, Nongame Fish Biologist, Division of Ecological Services, Minnesota DNR

Brook Trout

  • Salvelinus fontinalis
  • No

  • Thumbnail. Brook trout, captured in Lassen Creek, Modoc County, CA, on 8 July 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.

Brown Trout

  • Salmo trutta
  • No

  • Thumbnail. Brown trout, approximately 20 cm (8”) long. Location: Deer Creek, California Date: 6/21/2007. Photo by Dave Giordano

Bull Trout

  • Salvelinus confluentus
  • Yes
  • N / A

California Coast 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

California Golden Trout

  • Oncorhynchus mykiss aguabonita
  • Yes

  • Thumbnail. Golden trout caught in Guitar Lake, 7/16/05. Length: 21 cm. Photo courtesy of Howard Kern.

California Killifish

  • Fundulus parvipinnis
  • Yes

  • Thumbnail. California killifish, captured from Zuma Creek Lagoon, Los Angeles County, CA on 26 January 2006. Photo by Steve Howard.

California Tilapia (hybrid)

  • Oreochromis spp.
  • No

  • Thumbnail. Mozambique tilapia hybrid, female, captured from the Salton Sea in 2006. Photo by Sharon Keeney, CDFW.

Central 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.

Central California Roach

  • Lavinia symmetricus symmetricus
  • Yes

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

Central Coast Coho Salmon

  • Oncorhynchus kisutch
  • Yes

  • Thumbnail. Coho salmon fry taken by Lisa Thompson. Location: Shasta River, California. Date: 4/13/2004. Fish was approximately 6.5 cm long (2.5”).

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.

Central Valley Winter 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

Channel Catfish

  • Ictalurus punctatus
  • No

  • Thumbnail. Channel catfish, caught in Nacimiento Reservoir in May 2008 by Teejay O'Rear. Photo by Amber Manfree.

Chum Salmon

  • Oncorhynchus keta
  • Yes

  • Thumbnail. Chum salmon, adult. Captured at the mouth of Chico Creek on Puget Sound, in Kitsap County, Washington, 8 November 2007. Photo - Larry Coté.

Clear Lake Hitch

  • Lavinia exilicauda chi
  • Yes

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

Clear Lake Prickly Sculpin

  • Cottus asper subspecies
  • Yes

  • Thumbnail. Prickly sculpin, approximately 10 cm (4”) long. Location: Suisun Marsh, California. Date: 8/6/2007. Photo by Dave Giordano.

Clear Lake Roach

  • Lavinia symmetricus subspecies
  • Yes

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

Clear Lake Splittail

  • Pogonichthys ciscoides
  • Yes
  • N / A

Clear Lake Tule Perch

  • Hysterocarpus traskii lagunae
  • Yes

  • Thumbnail. Tule perch, 13 cm (5”) long. Location: Suisun March. Date: 8/6/2007. Photo by Dave Giordano.

Coastal Cutthroat Trout

  • Oncorhynchus clarki clarki
  • Yes

  • Thumbnail. Cutthroat trout, sea-run adult. Caught along the beaches of Hood Canal near Seabeck, Washington. Photo courtesy of Larry Coté.

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.

Coastal Threespine Stickleback

  • Gasterosteus aculeatus aculeatus
  • Yes

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

Coastrange Sculpin

  • Cottus aleuticus
  • Yes

  • Thumbnail. Coastrange sculpin, approx. 85 mm (3.5

Colorado Pikeminnow

  • Ptychocheilus lucius
  • Yes

  • Thumbnail. Colorado pikeminnow, adult, right side. Photo by Cameron T. Wilcox, Colorado State University.

Colorado River Cutthroat Trout

  • Oncorhynchus clarkii pleuriticus
  • No

  • Thumbnail. Cutthroat trout, sea-run adult. Caught along the beaches of Hood Canal near Seabeck, Washington. Photo courtesy of Larry Coté.

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.

Cottonball Marsh Pupfish

  • Cyprinodon salinus milleri
  • Yes

  • Thumbnail. Salt Creek pupfish, male, dorsal/frontal view. Photographed at Salt Creek, CA (Death Valley National Park). Photo by Rian K. Long.

Cow Head Tui Chub

  • Siphatales thalassinus vaccaceps
  • Yes

  • Thumbnail. Tui chub, approximately 10 cm (4”) long. Date: 7/10/2007. Photo by Dave Giordano.

Delta Smelt

  • Hypomesus pacificus
  • Yes

  • Thumbnail. Delta Smelt, Adult, UC Davis Fish Conservation & Culture Lab, Byron, CA (largely funded by CDWR). May 15, 2008. Photo - Dave Giordano

Desert Pupfish

  • Cyprinodon macularius
  • Yes

  • Thumbnail. Desert pupfish, male, breeding color. Borrego Palm Canyon Pond, Anza-Borrego Desert State Park. Date: May 2010. Photo - Sharon Keeney, CDFW

Eagle Lake Rainbow Trout

  • Oncorhynchus mykiss aquilarum
  • Yes

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

Eagle Lake Tui Chub

  • Siphatales bicolor subspecies
  • Yes

  • Thumbnail. Tui chub, approximately 10 cm (4”) long. Date: 7/10/2007. Photo by Dave Giordano.

Eulachon

  • Thaleichthys pacificus
  • Yes

  • Thumbnail. Eulachon, male, caught in rotary screw trap on the Sacramento River at Knights Landing on 1/27/2006. Photo by Michael S. Brown, 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

Flannelmouth Sucker

  • Catostomus latipinnis
  • Yes
  • N / A

Flathead Catfish

  • Pylodictis olivaris
  • No

  • Thumbnail. Flathead catfish, adult. Caught in the St. Croix River, Washington County, Minnesota, in summer 1976. Photo by Konrad Schmidt, Minn. DNR

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.

Goose Lake Lamprey

  • Entosphenus tridentata
  • Yes

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

Goose Lake Redband Trout

  • Oncorhynchus mykiss subspecies
  • Yes

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

Goose Lake Sucker

  • Catostomus occidentalis lacusanserinus
  • Yes

  • Thumbnail. Sacramento sucker, adult, caught in Putah Creek, California on 26 June 2008 by Teejay O'Rear. Photo by Amber Manfree.

Goose Lake Tui Chub

  • Siphatales thalassinus thalassinus
  • Yes

  • Thumbnail. Tui chub, approximately 10 cm (4”) long. Date: 7/10/2007. Photo by Dave Giordano.

Grass Carp

  • Ctenopharyngodon idella
  • No

  • Thumbnail. Grass carp. Photographed on 05/13/08, by Konrad Schmidt, Nongame Fish Biologist, Division of Ecological Services, Minnesota DNR.

Green Sunfish

  • Lepomis cyanellus
  • No

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

Gualala Roach

  • Lavinia parvipinnus
  • Yes

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

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.

High Rock Springs Tui Chub

  • Siphatales bicolor subspecies
  • Yes

  • Thumbnail. Tui chub, approximately 10 cm (4”) long. Date: 7/10/2007. Photo by Dave Giordano.

Humboldt Sucker

  • Catostomus occidentalis humboldtianus
  • Yes

  •  

    Thumbnail. Sacramento sucker, adult, caught in Putah Creek, California on 26 June 2008 by Teejay O'Rear. Photo by Amber Manfree.

     

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.

Kern Brook Lamprey

  • Lampetra hubbsi
  • Yes
  • N / A

Kern River Rainbow Trout

  • Oncorhynchus mykiss gilberti
  • Yes

  • Thumbnail. Golden trout caught in Guitar Lake, 7/16/05. Length: 21 cm. Photo courtesy of Howard Kern.

Klamath Largescale Sucker

  • Catostomus snyderi
  • Yes
  • N / A

Klamath Mountains Province 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.

Klamath Mountains Province 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.

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 Smallscale Sucker

  • Catostomus rimiculus
  • Yes

  • Thumbnail. Klamath smallscale sucker, captured from the maintstem Klamath River near Orleans, CA. Photo by Brian Hodge, Humboldt State University.

Klamath Speckled Dace

  • Rhinichthys osculus klamathensis
  • Yes

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

Klamath Tui Chub

  • Siphatales bicolor bicolor
  • Yes

  • Thumbnail. Tui chub, approximately 10 cm (4”) long. Date: 7/10/2007. Photo by Dave Giordano.

Lahontan Cutthroat Trout

  • Oncorhynchus clarki henshawi
  • Yes

  • Thumbnail. Cutthroat trout, sea-run adult. Caught along the beaches of Hood Canal near Seabeck, Washington. Photo courtesy of Larry Coté.

Lahontan Lake Tui Chub

  • Siphatales bicolor pectinifer
  • Yes

  • Thumbnail. Tui chub, approximately 10 cm (4”) long. Date: 7/10/2007. Photo by Dave Giordano.

Lahontan Mountain Sucker

  • Catostomus platyrhynchus
  • Yes

  • Thumbnail. Mountain sucker. Photo courtesy of Professor Peter B. Moyle.

Lahontan Redside

  • Richardsonius egregius
  • Yes

  • Thumbnail. Lahontan redside, caught in Bogard Spring Creek (Eagle Lake watershed) in 2011. Photo by Teejay O'Rear.

Lahontan Speckled Dace

  • Rhinichthys osculus robustus
  • Yes

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

Lahontan Stream Tui Chub

  • Siphatales bicolor obesus
  • Yes

  • Thumbnail. Tui chub, approximately 10 cm (4”) long. Date: 7/10/2007. Photo by Dave Giordano.

Lake Trout

  • Salvelinus namaycush
  • No

  • Thumbnail. Lake trout, captured from Donner Lake on 12/21/2009. Length: 53 cm (21

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.

Little Kern Golden Trout

  • Oncorhynchus mykiss whitei
  • Yes

  • Thumbnail. Golden trout caught in Guitar Lake, 7/16/05. Length: 21 cm. Photo courtesy of Howard Kern.

Long Valley Speckled Dace

  • Rhinichthys osculus subspecies
  • Yes

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

Longfin Smelt

  • Spirinchus thaleichthys
  • Yes

  • Thumbnail. Longfin smelt, male, 141 mm FL. Photographed on March 7, 2008 at the Tracy Fish Collection Facility, Tracy, CA. Photo by René Reyes, USBR.

Longjaw Mudsucker

  • Gillichthys mirabilis
  • Yes

  • Thumbnail. Longjaw mudsucker. Location: Eureka Slough, Humboldt Bay, CA. Date: 2003. Photo by Mike Wallace, California Department of Fish and Game.

Lost River Sucker

  • Catostomus luxatus
  • Yes
  • N / A

Lower Klamath Marbled Sculpin

  • Cottus klamathensis polyporus
  • Yes

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

McCloud River Redband Trout

  • Oncorhynchus mykiss stonei
  • Yes

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

Mississippi Silversides

  • Menidia beryllina subspecies
  • No

  • Thumbnail. Mississippi silverside approximately 8 cm (3”) long. Location: Suisun Marsh, California Date: 8/8/2008. Photo by Dave Giordano.

Modoc Sucker

  • Catostomus microps
  • Yes

  • Thumbnail. Modoc sucker, spawning. Photo by Stewart Reid, Western Fishes, Ashland, OR.

Mojave Tui Chub

  • Siphatales mohavensis
  • Yes

  • Thumbnail. Tui chub, approximately 10 cm (4”) long. Date: 7/10/2007. Photo by Dave Giordano.

Monterey Hitch

  • Lavinia exilicauda harengeus
  • Yes

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

Monterey Roach

  • Lavinia symmetricus subditus
  • Yes

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

Monterey Sucker

  • Catostomus occidentalis mnioltiltus
  • Yes

  • Thumbnail. Sacramento sucker, adult, caught in Putah Creek, California on 26 June 2008 by Teejay O'Rear. Photo by Amber Manfree.

Mountain Whitefish

  • Prosopium williamsoni
  • Yes

  • Thumbnail. Mountain whitefish. Location: Lower Truckee River, NV. Date: Oct. 2007. Photo by Marianne Denton, Dept. NRES, University of Nevada, Reno.

Navarro Roach

  • Lavinia symmetricus navarroensis
  • Yes

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

Northern (Pit) Roach

  • Lavinia mitrulus
  • Yes

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

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.

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.

Northern Green Sturgeon

  • Acipenser medirostris
  • Yes

  • Thumbnail. Green sturgeon, juvenile, in tank. Photo courtesy of Dennis Cocherell, UC Davis.

Owens Pupfish

  • Cyprinodon radiosus
  • Yes

  • Thumbnail. Owens pupfish, male. Location: Fish Slough, CA. Photo by Joe Ferreira, California Department of Fish and Game.

Owens Speckled Dace

  • Rhinichthys osculus subspecies
  • Yes

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

Owens Sucker

  • Catostomus fumeiventris
  • Yes

  • Thumbnail. Owens sucker, underwater. Location: Hot Creek, CA. Photo by Joe Ferreira, California Department of Fish and Game.

Owens Tui Chub

  • Siphatales bicolor snyderi
  • Yes

  • Thumbnail. Tui chub, approximately 10 cm (4”) long. Date: 7/10/2007. 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.

Paiute Cutthroat Trout

  • Oncorhynchus clarki seleneris
  • Yes

  • Thumbnail. Cutthroat trout, sea-run adult. Caught along the beaches of Hood Canal near Seabeck, Washington. Photo courtesy of Larry Coté.

Paiute Sculpin

  • Cottus beldingi
  • Yes

  • Thumbnail. Paiute sculpin (lateral view) from Sagehen Creek, CA in 2012. Photo by Matt Young.

Pink Salmon

  • Oncorhynchus gorbuscha
  • Yes
  • N / A

Pit River Tui Chub

  • Siphatales thalassinus subspecies
  • Yes

  • Thumbnail. Tui chub, approximately 10 cm (4”) long. Date: 7/10/2007. Photo by Dave Giordano.

Pit Sculpin

  • Cottus pitensis
  • Yes

  • Thumbnail. Pit sculpin. Modoc County, CA. July 10, 2007. Photo by Dave Giordano.

Pit-Klamath Brook Lamprey

  • Lampetra lethophaga
  • Yes

  • Thumbnail. Pit-Klamath brook lamprey adult. Location: Dry Creek, Lake County, Oregon. Date: 9/18/2007. Photo by Michael P. Heck, Oregon DFW.

Porthole Livebearer

  • Poeciliopsis gracilis
  • No

  • Thumbnail. Porthole livebearer, female. Location: Irrigation drain (Oasis-Grant), north end of the Salton Sea. 5/20/2010. Photo - Sharon Keeney, CDFW.

Prickly Sculpin

  • Cottus asper subspecies
  • Yes

  • Thumbnail. Prickly sculpin, approximately 10 cm (4”) long. Location: Suisun Marsh, California. Date: 8/6/2007. Photo by Dave Giordano.

Pumpkinseed

  • Lepomis gibbosus
  • No

  • Thumbnail. Pumpkinseed, captured from Lake Davis, CA. Photo by Robert Vincik, California Department of Fish and Game.

Rainwater Killifish

  • Lucania parva
  • No

  • Thumbnail. Rainwater Killifish (left) caught in Artesian Slough, Santa Clara County, California on 6 November, 2016 by Jim Hobbs. Photo by Jim Ervin.

Razorback Sucker

  • Xyrauchen texanus
  • Yes

  • Thumbnail. Razorback sucker. Photo taken at the Ouray National Fish Hatchery by Mark Fuller, US Fish & Wildlife Service, provided by Tim Modde, USFWS.

Red Hills Roach

  • Lavinia symmetricus subspecies
  • Yes

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

Red Shiner

  • Cyprinella lutrensis
  • No

  • Thumbnail. Red shiner. Caught in the Rock River, Rock County, Minnesota, in July 2002. Photo by Konrad Schmidt, Minn. DNR.

Redear Sunfish

  • Lepomis microlophus
  • No

  • Thumbnail. Redear sunfish. Photo courtesy of Professor Peter B. Moyle.

Redeye Bass

  • Micropterus coosae
  • No

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

Reticulate Sculpin

  • Cottus perplexus
  • Yes
  • N / A

Riffle Sculpin

  • Cottus gulosus
  • Yes

  • Thumbnail. Riffle sculpin, side view. Location: South Fork American River. Date: 5 May 2010. Photo by Lisa C. Thompson.

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.

Rough Sculpin

  • Cottus asperrimus
  • Yes
  • N / A

Russian River Roach

  • Lavinia symmetricus subspecies
  • Yes

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

Russian River Tule Perch

  • Hysterocarpus traskii pomo
  • Yes

  • Thumbnail. Tule perch, 13 cm (5”) long. Location: Suisun March. Date: 8/6/2007. Photo by Dave Giordano.

Sacramento Blackfish

  • Orthodon microlepidotus
  • Yes

  • Thumbnail. Sacramento blackfish, caught in the San Joaquin river near Stockton on 11/11/08. Photo by Steve Reem.

Sacramento Hitch

  • Lavinia exilicauda exilicauda
  • Yes

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

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.

Sacramento Pikeminnow

  • Ptychocheilus grandis
  • Yes

  • Thumbnail. Sacramento pikeminnow, juvenile. Location: Deer Creek California (Yuba River basin). Date: 6/20/2007. Photo by Dave Giordano.

Sacramento Speckled Dace

  • Rhinichthys osculus subspecies
  • Yes

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

Sacramento Splittail

  • Pogonichthys macrolepidotus
  • Yes

  • Thumbnail. Sacramento splittail, adult, from the Cosumnes River, CA. Photo courtesy of Professor Peter B. Moyle.

Sacramento Sucker

  • Catostomus occidentalis occidentalis
  • Yes

  • Thumbnail. Sacramento sucker, adult, caught in Putah Creek, California on 26 June 2008 by Teejay O'Rear. Photo by Amber Manfree.

Sacramento Tule Perch

  • Hysterocarpus traskii traskii
  • Yes

  • Thumbnail. Tule perch, 13 cm (5”) long. Location: Suisun March. Date: 8/6/2007. Photo by Dave Giordano.

Sailfin Molly

  • Poecilia latipinna
  • No

  • Thumbnail. Sailfin molly, male, left side. Irrigation drain (Oasis-Grant Drain) at the north end of the Salton Sea, 2010. Photo - Sharon Keeney, CDFW.

Salt Creek Pupfish

  • Cyprinodon salinus salinus
  • Yes

  • Thumbnail. Salt Creek pupfish, male, dorsal/frontal view. Photographed at Salt Creek, CA (Death Valley National Park). Photo by Rian K. Long.

Santa Ana Speckled Dace

  • Rhinichthys osculus subspecies
  • Yes

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

Santa Ana Sucker

  • Catostomus santaanae
  • Yes

  • Thumbnail. Santa Ana sucker, behind rock, in the San Gabriel River, CA, on 06/27/2007. Photo by Manna Warburton.

Saratoga Springs Pupfish

  • Cyprinodon nevadensis nevadensis
  • Yes

  • Thumbnail. Amargosa pupfish, left side. Photographed at Ash Meadows, Nevada in April 2006. Photo by Joseph C. Sullivan.

Shay Creek Stickleback

  • Gasterosteus aculeatus subspecies
  • Yes

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

Shimofuri Goby

  • Tridentiger bifasciatus
  • No

  • Thumbnail. Shimofuri goby, approximately 5 cm (2”) long. Location: Suisun Marsh, California Date: 8/6/2007. Photo by Dave Giordano.

Shiner Perch

  • Cymatogaster aggregata
  • Yes

  • Thumbnail. Shiner perch, captured from Edison Canal, Ventura County, CA on 15 December 2005. Photo by Steve Howard.

Shortfin Molly

  • Poecilia mexicana
  • No

  • Thumbnail. Shortfin molly, male. Location: In a wash just south of Bombay Beach, Salton Sea. Date: Sept. 27, 2010. Photo by Sharon Keeney, CDFW.

Shortnose Sucker

  • Chasmistes brevirostris
  • Yes

  • Thumbnail. Shortnose sucker. Photo by Stewart Reid, Western Fishes, Ashland, OR.

Shoshone Pupfish

  • Cyprinodon nevadensis shoshone
  • Yes

  • Thumbnail. Amargosa pupfish, left side. Photographed at Ash Meadows, Nevada in April 2006. Photo by Joseph C. Sullivan.

Smallmouth Bass

  • Micropterus dolomieu
  • No

  • Thumbnail. Smallmouth bass. Photo courtesy of Drew Gregory.

Sockeye (Kokanee) Salmon

  • Onchorynchus nerka
  • No

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

South Central California Coast 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.

Southern California 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.

Southern Green Sturgeon

  • Acipenser medirostris
  • Yes

  • Thumbnail. Green sturgeon, juvenile, in tank. Photo courtesy of Dennis Cocherell, UC Davis.

Southern Oregon Northern California Coast Coho Salmon

  • Oncorhynchus kisutch
  • Yes

  • Thumbnail. Coho salmon fry taken by Lisa Thompson. Location: Shasta River, California. Date: 4/13/2004. Fish was approximately 6.5 cm long (2.5”).

Southern Oregon Northern California Coast 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

Spotted Bass

  • Micropterus punctulatus
  • No

  • Thumbnail. Spotted bass, juvenile, approximately 7.5 cm (3”) long. Location: Deer Creek, California Date: 6/22/2007. Photo by Dave Giordano.

Staghorn Sculpin

  • Leptocottus armatus
  • Yes

  • Thumbnail. Pacific staghorn sculpin caught in Suisun Marsh, CA on 20 August 2008. Photo by Amber Manfree.

Starry Flounder

  • Platichthys stellatus
  • Yes

  • Thumbnail. Starry flounder, juvenile, approximately 7.5 cm (3”) long. Location: Suisun Marsh, California. Date: 8/8/2007. Photo by Dave Giordano.

Striped Bass

  • Morone saxatilis
  • No

  • Thumbnail. Striped bass, approximately 18 cm (7”) long. Location: Suisun Marsh, California Date: 8/6/2007. Photo by Dave Giordano.

Striped Mullet

  • Mugil cephalus
  • Yes

  • Striped Mullet_Thumbnail

Surf Smelt

  • Hypomesus pretiosus
  • Yes

  • Thumbnail. Surf smelt. Location: Eureka Slough, Humboldt Bay, CA. Date: 2004. Photo by Mike Wallace, CDFW.

Tahoe Sucker

  • Catostomus tahoensis
  • Yes

  • Thumbnail. Tahoe sucker, adult, approximately 15 cm (6”) long. Date: 7/8/2007. Photo by Dave Giordano.

Tecopa Pupfish

  • Cyprinodon nevadensis calidae
  • Yes

  • Thumbnail. Amargosa pupfish, left side. Photographed at Ash Meadows, Nevada in April 2006. Photo by Joseph C. Sullivan.

Tench

  • Tinca tinca
  • No

  • Thumbnail. Tench, caught in Storrington, West Sussex, England on 19 August 2009. Photo by Peter Collington.

Thicktail Chub

  • Siphatales crassicauda
  • Yes
  • N / A

Threadfin Shad

  • Dorosoma petenense
  • No

  • Thumbnail. American shad, head. Caught on the Feather River (Star Bend boat launch) on 4 July 2008. Approximately 20 cm TL. Photo by Brian Currier.

Tidewater Goby

  • Eucyclogobius newberryi
  • Yes

  • Thumbnail. Tidewater goby. Captured from Big Lagoon, CA, on 5/9/2006, Size: approximately 45 mm long. Photo by Zack Larson, USFWS.

Tomales Roach

  • Lavinia symmetricus subspecies
  • Yes

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

Topsmelt

  • Atherinops affinis
  • Yes

  • Thumbnail. Topsmelt, captured from the Santa Clara River Estuary, Ventura County, CA on 28 March 2004. Photo by Steve Howard.

Unarmored Threespine Stickleback

  • Gasterosteus aculeatus williamsoni
  • Yes

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

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.

Upper Klamath-Trinity 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

Upper Klamath-Trinity 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

Wakasagi

  • Hypomesus nipponensis
  • No

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

Warmouth

  • Lepomis gulosus
  • No

  • Thumbnail. Warmouth, Sacramento River at Knight's Landing, 12/16/2009. Length approximately 9 cm (3.5 inches). Photo by Kasie Barnes, CDFW.

Western Brook Lamprey

  • Lampetra richardsoni
  • Yes

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

White Bass

  • Morone chrysops
  • No

  • Thumbnail. White bass, caught in Nacimiento Reservoir, CA, by Teejay O'Rear. Photo by Amber Manfree.

White Catfish

  • Ameiurus catus
  • No

  • Thumbnail. White catfish swimming, approximately 21 cm (6”) long. Location: Deer Creek, California Date: 6/20/2007. Photo by Dave Giordano.

White Crappie

  • Pomoxis annularis
  • No

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

White Sturgeon

  • Acipenser transmontanus
  • Yes

  • Thumbnail. White sturgeon. Photo courtesy of Professor Peter B. Moyle.

Yellow Bullhead

  • Ameiurus natalis
  • No

  • Thumbnail. Yellow bullhead. Photo by Konrad Schmidt, Nongame Fish Biologist, Division of Ecological Services, Minnesota Dept. of Natural Resources

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.

Yellowfin Goby

  • Acanthogobius flavimanus
  • No

  • Thumbnail. Yellowfin goby, approximately 10 cm (4”) long. Location: Suisun Marsh, California Date: 8/8/2008.