Oncorhynchus clarkii, Cutthroat trout : fisheries, aquaculture, gamefish, aquarium

Oncorhynchus clarkii (Richardson, 1836)

Cutthroat trout
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Native range | All suitable habitat | Point map | Year 2100
This map was computer-generated and has not yet been reviewed.
Oncorhynchus clarkii   AquaMaps   Data sources: GBIF OBIS
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Image of Oncorhynchus clarkii (Cutthroat trout)
Oncorhynchus clarkii
Female picture by Bull. U.S. Bur. Fish.

Classificatie / Names Populaire namen | Synoniemen | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

Actinopterygii (Straalvinnigen) > Salmoniformes (Salmons) > Salmonidae (Salmonids) > Salmoninae
Etymology: Oncorhynchus: Greek, onyx, -ychos = nail + Greek, rhyngchos = snout (Ref. 45335);  clarkii: Named after William Clark, leader of the Lewis and Clark expedition (Ref. 1998).  More on author: Richardson.

Environment: milieu / climate zone / depth range / distribution range Ecologie

; marien; zoetwater; brakwater demersaal; anadroom (Ref. 27547); diepteverspreiding 0 - 200 m (Ref. 50610).   Temperate; ? - 23°C (Ref. 12741); 61°N - 40°N

Verspreiding Landen | FAO regio's | Ecosystems | Voorkomen | Point map | Introducties | Faunafri

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).

Length at first maturity / Size / Gewicht / Leeftijd

Maturity: Lm ?, range 15 - 18 cm
Max length : 99.0 cm TL mannelijk/geslacht niet bekend; (Ref. 12204); Maximaal gepubliceerd gewicht: 18.6 kg (Ref. 9988); Maximaal vermelde leeftijd: 10 jaren (Ref. 3221)

Korte beschrijving Morfologie | Morfometrie

Dorsale stekels (totaal): 0; Dorsale zachte stralen (totaal): 8-11; Anale stekels 0; Anale zachte stralen: 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.

Biologie     Verklarende woordenlijst (b.v. epibenthic)

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.

Life cycle and mating behavior Geslachtsrijpheid | Voortplanting | Kuitschieten | Eieren | Fecundity | Larven

Spawning occurs both daytime and nighttime. The female selects a site and builds a redd while the male courts her and drives away other males. Upon completion of the redd, the female settles into the pitt, immediately followed by the male. The pair releases eggs and sperm simultaneously and the eggs fall into the spaces between the gravel. The female then moves to the upstream edge of the redd and resumes digging, thereby covering the eggs. When completely covered, the female may use the new redd to spawn once more or she may look for another spot and repeat the entire process. Both males and females spawn with one or more members of the opposite sex (Ref. 12204, 27547). Reproductive strategy: synchronous ovarian organization, determinate fecundity (Ref. 51846).

Voornaamste referentie Upload your references | Referenties | Coördinator | Medewerkers

Coad, B.W., 1995. Encyclopedia of Canadian fishes. Canadian Museum of Nature and Canadian Sportfishing Productions Inc. Singapore. (Ref. 12204)

Status op de Rode Lijst van het IUCN (Ref. 123251)


CITES (Ref. 118484)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Gevaarlijk voor mensen

  Harmless





Gebruik door de mens

Visserij: commercieel; Aquacultuur: commercieel; vis voor de hengelsport: ja; Aquarium: Publieke aquaria
FAO(Publication : search) | FishSource |

Meer informatie

Populaire namen
Synoniemen
Metabolisme
Predators
Ecotoxicologie
Voortplanting
Geslachtsrijpheid
Kuitschieten
Spawning aggregation
Fecundity
Eieren
Ontwikkeling van de eieren
Leeftijd/Grootte
Groei
Lengte-gewicht parameters
Lengte-lengte parameters
Lengtefrequenties
Morfometrie
Morfologie
Larven
Populatiedynamica van de larven
recrutering
Abundantie
Referenties
Aquacultuur
Aquacultuurprofiel
Kweeklijnen
Genetica
Alleelfrequenties
Erfelijkheid
Ziekten
Verwerking
Mass conversion
Medewerkers
Illustraties
Stamps, Coins Misc.
Geluid
Ciguatera
Snelheid
Zwemstijl
Kieuwoppervlak
Otoliths
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Estimates based on models

Preferred temperature (Ref. 115969): 6.1 - 9.7, mean 8.1 °C (based on 81 cells).
Phylogenetic diversity index (Ref. 82805):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00912 (0.00713 - 0.01166), b=3.02 (2.97 - 3.07), in cm total length, based on LWR estimates for this species (Ref. 93245).
Trophic level (Ref. 69278):  3.8   ±0.56 se; based on food items.
Generation time: 4.4 ( na - na) years. Estimated as median ln(3)/K based on 1 growth studies.
Weerstandsvermogen (Ref. 120179):  Gemiddeld, minimale populatieverdubbelingstijd 1,4-4,4 jaar (tm=2-3; tmax=10; Fec=226).
Kwetsbaarheid (Ref. 59153):  Moderate to high vulnerability (48 of 100) .
Prijsklasse (Ref. 80766):   Very high.