Oncorhynchus clarkii clarkii (Richardson, 1836)

Cutthroat trout

Catalog of Fishes (gen., sp.) | ITIS | CoL

Classification	Actinopterygii \| Salmoniformes \| Salmonidae \| Salmoninae
Synonyms	Salmo clarkii, Fario clarkii, Oncorhynchus clarkii, ... more
Common names	Coast cutthroat trout, Clark's trout, Truite fardée, ... more

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| Native range | All suitable habitat | Year 2050 |

Aquamaps of Oncorhynchus clarkii clarkii

This map was computer-generated and has not yet been reviewed.

AquaMaps Data sources: GBIF OBIS

Main reference

Coad, B.W. 1995. (Ref. 12204)
Other references | Biblio | Coordinator | Collaborators

Size / Weight / Age

Max length : 99.0 cm TL male/unsexed; (Ref. 12204); max. published weight: 18.6 kg (Ref. 9988); max. reported age: 10 years (Ref. 3221)

Environment

Demersal; anadromous (Ref. 27547); freshwater; brackish; marine; depth range 0 - 200 m (Ref. 50610)

Climate / Range

Temperate; ? - 23°C (Ref. 12741); 61°N - 40°N

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).
Countries | FAO areas | Ecosystems | Occurrences | Introductions

Short description

Dorsal spines (total): 0; Dorsal soft rays (total): 8 - 11; Anal spines: 0; Anal soft rays: 8 - 12. Color is variable. Generally dark green to greenish-blue on back, olive-green on upper flank, silvery on lower flank and belly; flanks spots below lateral line are more numerous anteriorly; irregular spots on dorsal, adipose and caudal fins and the anal, pectoral and pelvic fin bases; gill covers are pinkish. Those found at sea or recent migrants to freshwater are silvery with a bluish back, yellowish lower flanks and fins, and sparse spots.

Prefers relatively small streams, with gravel bottoms and gentle gradients. Spawning adults migrate from the sea into streams to spawn (Ref. 27547). The young fish usually stay in the stream for a year or two before entering the sea, but some populations never got to sea at all. In rare cases, some individuals of sea-going populations, may remain in fresh water for as long as eight years (Ref. 28866, 28869). Feeds on small fishes, crustaceans, and insects (Ref. 4925). The flesh is orange-red and of excellent flavor (Ref. 27547). Utilized fresh and eaten fried, broiled, and baked (Ref. 9988). This species does not compete well with other fish, tends to hybridize, and is unable to withstand fishing pressure = depletion of stocks.


IUCN Red List Status (Ref. 57073)	Threat to humans
Not Evaluated	Harmless

Human uses
Fisheries: commercial; aquaculture: commercial; gamefish: yes; aquarium: public aquariums


More information
Countries FAO areas Ecosystems Occurrences Introductions Ecology Diet Food items Food consumption Ration	Common names Synonyms Metabolism Predators Ecotoxicology Reproduction Maturity Spawning Eggs Egg development	Age/Size Growth Length-weight Length-length Length-frequencies Morphometrics Morphology Larvae Larval dynamics Recruitment	Other references Biblio Aquaculture Aquaculture profile Strains Genetics Allele frequencies Heritability Diseases Processing	Collaborators Pictures Stamps Sounds Ciguatera Speed Swim. type Gill area Otoliths Brains Vision

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Internet sources

Estimation of some characteristics with mathematical models

Resilience (Ref. 69278)

Medium, minimum population doubling time 1.4 - 4.4 years (tm=2-3; tmax=10; Fec=226)


Vulnerability (Ref. 59153)	Price category (Ref. 80766)
Moderate vulnerability (43 of 100)	Very high

Entered by Froese, Rainer

Modified by Bailly, Nicolas

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Page last modified by : elaxamana, 15 July 2009

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