Animalia > Chordata > Actinopterygii > Salmoniformes > Salmonidae > Oncorhynchus > Oncorhynchus clarkii

Oncorhynchus clarkii (Cutthroat trout)

Synonyms: Fario clarkii; Fario stellatus; Oncorhynchus clarki; Oncorhynchus clarki bouvieri; Oncorhynchus clarki clarki; Oncorhynchus clarki lewisi; Oncorhynchus clarki pleuriticus; Oncorhynchus clarkii bouvieri; Oncorhynchus clarkii clarkii; Oncorhynchus clarkii humboldtensis; Oncorhynchus clarkii lewisi; Oncorhynchus clarkii pleuriticus; Parasalmo clarkii; Salar lewisi; Salmo brevicauda; Salmo clarki; Salmo clarki clarki; Salmo clarki lewisi; Salmo clarkii; Salmo clarkii alpestris; Salmo clarkii clarkii; Salmo clarkii lewisi; Salmo lewisi; Salmo pleuriticus; Salmo purpuratus bouvieri; Salmo stellatus

Wikipedia Abstract

The cutthroat trout (Oncorhynchus clarkii) is a fish species of the family Salmonidae native to cold-water tributaries of the Pacific Ocean, Rocky Mountains, and Great Basin in North America. As a member of the genus Oncorhynchus, it is one of the Pacific trout, a group that includes the widely distributed rainbow trout. Cutthroat trout are popular gamefish, especially among anglers who enjoy fly fishing. The common name "cutthroat" refers to the distinctive red coloration on the underside of the lower jaw. The specific name clarkii was given to honor explorer William Clark, coleader of the Lewis and Clark Expedition.
View Wikipedia Record: Oncorhynchus clarkii


Adult Weight [3]  22.55 lbs (10.23 kg)
Female Maturity [2]  3 years
Male Maturity [3]  3 years
Diet [1]  Carnivore
Adult Length [2]  39 inches (99 cm)
Brood Dispersal [2]  Hidden
Brood Egg Substrate [2]  Lithophils (rock-gravel)
Brood Guarder [2]  No
Litter Size [2]  2,700
Maximum Longevity [2]  10 years
Water Biome [1]  Pelagic, Lakes and Ponds, Rivers and Streams, Coastal, Brackish Water


Name Countries Ecozone Biome Species Report Climate Land
Bonneville United States Nearctic Xeric Freshwaters and Endorheic Basins    
Colorado Mexico, United States Nearctic Xeric Freshwaters and Endorheic Basins    
Columbia Glaciated Canada, United States Nearctic Temperate Upland Rivers    
Columbia Unglaciated United States Nearctic Temperate Floodplain River and Wetlands    
Lahontan United States Nearctic Xeric Freshwaters and Endorheic Basins    
Middle Missouri United States Nearctic Temperate Floodplain River and Wetlands    
Ozark Highlands United States Nearctic Temperate Upland Rivers    
Upper Missouri Canada, United States Nearctic Temperate Upland Rivers    
Upper Snake United States Nearctic Temperate Upland Rivers    
US Southern Plains United States Nearctic Temperate Upland Rivers    

Protected Areas

Name IUCN Category Area acres Location Species Website Climate Land Use
Bandelier National Monument V 8107 New Mexico, United States
Banff National Park II 1690912 Alberta, Canada
Bighorn Canyon National Recreation Area V 36286 Montana, Wyoming, United States
California Coast Ranges Biosphere Reserve 153447 California, United States  
Glacier National Park II 953799 Montana, United States
Great Basin National Park II 77367 Nevada, United States
Gulf Islands National Park National Park Reserve II 8785 British Columbia, Canada
Gwaii Haanas National Park Reserve II 366714 British Columbia, Canada
H.J. Andrews Biosphere Reserve 15815 Oregon, United States
Jasper National Park II 2776809 Alberta, Canada
Kootenay National Park II 341762 British Columbia, Canada
Mount Arrowsmith Biosphere Reserve 293047 British Columbia, Canada  
Mount Rainier National Park II 235186 Washington, United States
Mount Revelstoke National Park Ia 18 British Columbia, Canada
Olympic Biosphere Reserve II 922805 Washington, United States
Pacific Rim National Park Reserve II 137900 British Columbia, Canada
Redwood National Park II 77867 California, United States
Waterton Biosphere Reserve II 121459 Alberta, Canada
Wrangell-St. Elias National Park and Preserve Ib 2476446 Alaska, United States
Yellowstone Biosphere Reserve II 2196863 Idaho, Montana, Wyoming, United States
Yoho National Park II 317576 British Columbia, Canada
Yosemite National Park II 95209 California, United States
Zion National Park II 135667 Utah, United States


Emblem of

New Mexico

Prey / Diet

Ammodytes hexapterus (Stout sand lance)[4]
Boiga dendrophila (Gold-ringed Cat Snake, Mangrove Snake)[5]
Clevelandia ios (Arrow goby)[4]
Clupea pallasii (Pacific herring)[6]
Clupea pallasii pallasii (Pacific herring)[4]
Cololabis saira (Skipper)[6]
Cymatogaster aggregata (Shiner)[4]
Daphnia pulicaria[7]
Daphnia schoedleri[7]
Engraulis mordax (Californian anchoveta)[6]
Enteromius liberiensis (Barb)[5]
Euphausia pacifica (Pacific krill)[6]
Gasterosteus aculeatus (Alaskan stickleback)[4]
Hexagrammos decagrammus (Kelp greenling)[6]
Hypomesus pretiosus (Surf smelt)[4]
Leptocottus armatus (Cabezon)[4]
Macoma nasuta (bent-nose macoma)[4]
Metacarcinus magister (Dungeness crab)[5]
Oncorhynchus kisutch (coho salmon or silver salmon)[5]
Oncorhynchus tshawytscha (chinook salmon or king salmon)[6]
Ophiodon elongatus (Lingcod)[6]
Scorpaenichthys marmoratus (Sculpin)[6]
Thysanoessa spinifera[6]

Prey / Diet Overlap

Competing SpeciesCommon Prey Count
Aechmophorus occidentalis (Western Grebe)3
Aphriza virgata (Surfbird)1
Ardea herodias (Great Blue Heron)1
Aythya fuligula (Tufted Duck)1
Balaenoptera acutorostrata (Minke Whale)1
Balaenoptera physalus (Fin Whale)1
Beringraja binoculata (Big skate)1
Brachyramphus brevirostris (Kittlitz's Murrelet)1
Brachyramphus marmoratus (Marbled Murrelet)2
Bucephala albeola (Bufflehead)1
Bucephala clangula (Common Goldeneye)1
Callorhinus ursinus (Northern Fur Seal)2
Cepphus columba (Pigeon Guillemot)2
Cerorhinca monocerata (Rhinoceros Auklet)3
Charadrius semipalmatus (Semipalmated Plover)1
Clangula hyemalis (Oldsquaw)2
Dasycottus setiger (Spinyhead sculpin)1
Eumetopias jubatus (Steller Sea Lion)2
Fratercula cirrhata (Tufted Puffin)2
Fratercula corniculata (Horned Puffin)1
Gadus chalcogrammus (Whiting)2
Gadus macrocephalus (Pacific cod)2
Gavia pacifica (Pacific Loon)2
Gavia stellata (Red-throated Loon)1
Gillichthys mirabilis (Longjaw mudsucker)1
Haliaeetus leucocephalus (Bald Eagle)1
Hexagrammos stelleri (Greenling)1
Hippoglossoides elassodon (Paper sole)1
Hippoglossus stenolepis (Pacific halibut)2
Hydroprogne caspia (Caspian Tern)1
Larus canus (Mew Gull)1
Lepidopsetta polyxystra (Northern rock sole)1
Leptocottus armatus (Cabezon)3
Limnodromus griseus (Short-billed Dowitcher)2
Limosa fedoa (Marbled Godwit)1
Megaptera novaeangliae (Humpback Whale)2
Melanitta nigra (Black Scoter)1
Merluccius productus (Whiting)2
Metacarcinus magister (Dungeness crab)1
Numenius americanus (Long-billed Curlew)1
Nycticorax nycticorax (Black-crowned Night-Heron)1
Ophiodon elongatus (Lingcod)1
Perca fluviatilis (River perch)1
Phalacrocorax auritus (Double-crested Cormorant)2
Phalacrocorax pelagicus (Pelagic Cormorant)3
Phocoenoides dalli (Dall's Porpoise)1
Pluvialis squatarola (Grey Plover)2
Podiceps auritus (Horned Grebe)3
Podiceps grisegena (Red-necked Grebe)3
Pollachius pollachius (Pollock)1
Ptychocheilus oregonensis (Seatrout)1
Rissa tridactyla (Black-legged Kittiwake)2
Salmo salar (Atlantic salmon)1
Salmo trutta (Brown trout)1
Salvelinus alpinus (Arctic charr)1
Sebastes caurinus (Copper rockfish)1
Sebastes crameri (Rockfish)1
Sebastes flavidus (Yellowtail rockfish)2
Sebastes melanops (Black bass)1
Squalus acanthias (Common spiny)2
Sterna paradisaea (Arctic Tern)2
Synthliboramphus antiquus (Ancient Murrelet)2
Tringa melanoleuca (Greater Yellowlegs)2
Tursiops truncatus (Bottlenosed Dolphin)1
Uria aalge (Common Murre)1


Ardea herodias (Great Blue Heron)[7]
Gavia immer (Great Northern Loon)[7]
Haliaeetus leucocephalus (Bald Eagle)[8]
Hydroprogne caspia (Caspian Tern)[6]
Lontra canadensis (northern river otter)[7]
Megaceryle alcyon (Belted Kingfisher)[7]
Mergus merganser (Common Merganser)[7]
Pandion haliaetus (Osprey)[7]
Phalacrocorax auritus (Double-crested Cormorant)[7]
Podiceps nigricollis (Eared Grebe)[7]
Ursus arctos (Grizzly Bear)[7]


Parasitized by 
Ascarophis globosa <Unverified Name>[9]
Bulbodacnitis globosa <Unverified Name>[9]
Bulbodacnitis scotti <Unverified Name>[9]
Capillaria catenata <Unverified Name>[9]
Cardicola klamathensis[9]
Crepidostomum farionis[9]
Crepidostomum metoecus[9]
Cucullanus truttae <Unverified Name>[9]
Cyathocephalus truncatus[9]
Cystidicola stigmatura <Unverified Name>[9]
Deropegus aspina[9]
Dibothriocephalus dendriticus[9]
Dibothriocephalus ditremus[9]
Diphyllobothrium cordiceps <Unverified Name>[9]
Diplostomum baeri[9]
Diplostomum oregonensis <Unverified Name>[9]
Diplostomum spathaceum[9]
Echinorhynchus lateralis[9]
Eubothrium salvelini[9]
Gyrodactylus elegans[9]
Gyrodactylus salmonis[9]
Hepaticola bakeri <Unverified Name>[9]
Metabronema salvelini <Unverified Name>[9]
Nanophyetus salmincola <Unverified Name>[9]
Neoechinorhynchus rutili[9]
Philonema oncorhynchi <Unverified Name>[9]
Plagioporus siliculus[9]
Pomphorhynchus bulbocolli[9]
Proteocephalus arcticus <Unverified Name>[9]
Proteocephalus laruei <Unverified Name>[9]
Proteocephalus primaverus <Unverified Name>[9]
Proteocephalus salmonidicola <Unverified Name>[9]
Rhabdochona cascadilla[9]
Rhabdochona paxmani <Unverified Name>[9]
Salvelinema walkeri <Unverified Name>[9]

Institutions (Zoos, etc.)

Institution Infraspecies / Breed 
Cheyenne Mtn Zoological Parkstomias
Utah's Hogle Zooutah

Range Map

Alaska (USA); America, North - Inland waters; Asia - Inland waters; California Current; Canada; Cyprus; Denmark; Eastern Pacific: northern parts of Prince William Sound, Alaska, south to the Eel River in northern California, USA and is found in most streams emptying into the Pacific. Widely introduced into various streams and lakes within its natural range, as wel; Eastern Pacific: northern parts of Prince William Sound, Alaska, south to the Eel River in northern California, USA and is found in most streams emptying into the Pacific. Widely introduced into various streams and lakes within its natural range, as well as into a few lakes in eastern North America. In some streams it may be the most numerous sport fish present, while other streams support only small populations. At least 14 subspecies have been historically recognized (Ref. 5723).; Europe - Inland waters; Fraser; Great Lakes; Gulf of Alaska; Nearctic; Nelson-Saskatchewan; Pacific Ocean; Pacific, Eastern Central; Pacific, Northeast; Palearctic; Sweden; USA (contiguous states);



Attributes / relations provided by
1Myers, P., R. Espinosa, C. S. Parr, T. Jones, G. S. Hammond, and T. A. Dewey. 2006. The Animal Diversity Web (online). Accessed February 01, 2010 at
2Frimpong, E.A., and P. L. Angermeier. 2009. FishTraits: a database of ecological and life-history traits of freshwater fishes of the United States. Fisheries 34:487-495.
3de Magalhaes, J. P., and Costa, J. (2009) A database of vertebrate longevity records and their relation to other life-history traits. Journal of Evolutionary Biology 22(8):1770-1774
4Coastal Cutthroat Trout (Oncorhynchus clarki clarki) Diet In South Puget Sound, Washington 1999 – 2002, Joseph M. Jauquet, Masters Thesis, Evergreen State College, 2002
5Jorrit H. Poelen, James D. Simons and Chris J. Mungall. (2014). Global Biotic Interactions: An open infrastructure to share and analyze species-interaction datasets. Ecological Informatics.
6Szoboszlai AI, Thayer JA, Wood SA, Sydeman WJ, Koehn LE (2015) Forage species in predator diets: synthesis of data from the California Current. Ecological Informatics 29(1): 45-56. Szoboszlai AI, Thayer JA, Wood SA, Sydeman WJ, Koehn LE (2015) Data from: Forage species in predator diets: synthesis of data from the California Current. Dryad Digital Repository.
7National Geographic Magazine - May 2016 - Yellowstone - The Carnivore Comeback
8Food Web Relationships of Northern Puget Sound and the Strait of Juan de Fuca : a Synthesis of the Available Knowledge, Charles A. Simenstad, Bruce S. Miller, Carl F. Nyblade, Kathleen Thornburgh, and Lewis J. Bledsoe, EPA-600 7-29-259 September 1979
9Gibson, D. I., Bray, R. A., & Harris, E. A. (Compilers) (2005). Host-Parasite Database of the Natural History Museum, London
Ecoregions provided by World Wide Fund For Nature (WWF). WildFinder: Online database of species distributions, ver. 01.06 WWF WildFINDER
Images provided by Google Image Search
Abstract provided by DBpedia licensed under a Creative Commons License
Weather provided by NOAA METAR Data Access