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

Oncorhynchus clarkii (Richardson, 1836)

Cutthroat trout
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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.

Классификация / Names народные названия | синонимы | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

лучеперые рыбы > 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 экология

; морской; пресноводный; солоноватоводный демерсальный; анадромный (Ref. 27547); пределы глубины 0 - 200 m (Ref. 50610).   Temperate; ? - 23°C (Ref. 12741); 61°N - 40°N

распространение страны | регионы FAO | Ecosystems | места находок | Point map | интродукции | 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 / Вес / Возраст

Maturity: Lm ?, range 15 - 18 cm
Max length : 99.0 cm TL самец/пол неопределен; (Ref. 12204); наибольший вес (опубликованные данные): 18.6 kg (Ref. 9988); наибольший возраст (опубликованны данные): 10 годы (Ref. 3221)

Краткое описание морфология | морфометрия

колючие лучи спинного плавника (общее число): 0; членистые (мягкие) лучи спинного плавника (общее число): 8-11; колючие лучи анального плавника 0; членистые (мягкие) лучи анального плавника: 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.

биология     глоссарий (например 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 половая зрелость | размножение | нерест | икра | Fecundity | личинки

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).

Основная ссылка Upload your references | ссылки | координатор | соавторы

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

Статус Красного Списка МСОП (Ref. 123251)


CITES (Ref. 118484)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Угроза для людей

  Harmless





Использование человеком

рыболовство: коммерческий; аквакультура (рыбоводство): коммерческий; объект спортивного рыболовства: да; аквариум: общественные аквариумы
FAO(Publication : search) | FishSource |

дополнительная информация

народные названия
синонимы
обмен веществ
хищники
экотоксикология
размножение
половая зрелость
нерест
Spawning aggregation
Fecundity
икра
Развитие икры
ссылки
аквакультура (рыбоводство)
особенности рыбоводства
степень растяжения
генетика
частоты аллелей
наследуемость
болезни
обработка
Mass conversion
соавторы
изображения
Stamps, Coins Misc.
звуки
Ciguatera
скорость
тип плавания
жаберная область
Otoliths
мозг
зрение

инструменты

Специальные отчеты

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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.
устойчивость к внешним воздействиям (Ref. 120179):  средний (среднего размера), минимальное время удвоения популяции 1.4-4.4 года (tm=2-3; tmax=10; Fec=226).
Уязвимость (Ref. 59153):  Moderate to high vulnerability (48 of 100) .
Категория цены (Ref. 80766):   Very high.