Oncorhynchus tshawytscha (Walbaum, 1792)
Chinook salmon
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| Oncorhynchus tshawytscha AquaMaps Data sources: GBIF OBIS |
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Oncorhynchus tshawytscha
Male Photo de McDowall, R.M.
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Male Photo de McDowall, R.M.
Classification / Noms Noms communs | Synonymes | Catalog of Fishes(Genre, Espèce) | ITIS | CoL | WoRMS | Cloffa
> Salmoniformes (Salmons) > Salmonidae (Salmonids) > Salmoninae
Etymology: Oncorhynchus: Greek, onyx, -ychos = nail + Greek, rhyngchos = snout (Ref. 45335); tshawytscha: tshawytscha which is the vernacular name of this species in Kamchatka (Ref. 1998).
More on author: Walbaum.
Etymology: Oncorhynchus: Greek, onyx, -ychos = nail + Greek, rhyngchos = snout (Ref. 45335); tshawytscha: tshawytscha which is the vernacular name of this species in Kamchatka (Ref. 1998).
More on author: Walbaum.
Environnement : milieu / zone climatique / profondeur / gamme de distribution Écologie
marin; eau douce; saumâtre benthopélagique; anadrome (Ref. 132363); profondeur 0 - 375 m (Ref. 58426). Temperate; 0°C - 25°C (Ref. 35682); 71°N - 27°N, 136°E - 112°W (Ref. 54251)
Distribution Territoires | Zones FAO | Écosystèmes | Occurrences | Carte par point | Introductions | Faunafri
Arctic, Northwest to Northeast Pacific: drainages from Point Hope, Alaska to San Joanquin and King rivers in California, USA (Ref. 86798). Also in Honshu, Japan (Ref. 6793), Sea of Japan (Ref. 1998), Bering Sea (Ref. 2850) and Sea of Okhotsk (Ref. 1998). Found in Coppermine River in the Arctic. Several countries report adverse ecological impact after introduction.
Longueur à la première maturité / Taille / Poids / Âge
Maturité: Lm 82.2 range ? - ? cm
Max length : 150 cm TL mâle / non sexé; (Ref. 40637); common length : 70.0 cm TL mâle / non sexé; (Ref. 9258); poids max. publié: 61.4 kg (Ref. 27547); âge max. reporté: 9 années (Ref. 12193)
Max length : 150 cm TL mâle / non sexé; (Ref. 40637); common length : 70.0 cm TL mâle / non sexé; (Ref. 9258); poids max. publié: 61.4 kg (Ref. 27547); âge max. reporté: 9 années (Ref. 12193)
Description synthétique Clés d'identification | Morphologie | Morphométrie
Épines dorsales (Total) : 0; Rayons mous dorsaux (Total) : 10 - 14; Épines anales: 0; Rayons mous anaux: 13 - 19; Vertèbres: 67 - 75. Distinguished by the small black spots on the back and on the upper and lower lobes of the caudal fin, and the black gums of the lower jaw (Ref. 27547). Body fusiform, streamlined, noticeably laterally compressed in large adults, somewhat deeper than other species (Ref. 6885). Gill rakers wide-spaced and rough; pelvic fins with axillary process (Ref. 27547). Fish in the sea are dark greenish to blue black on top of head and back, silvery to white on the lower sides and belly; numerous small, dark spots along back and upper sides and on both lobes of caudal; gum line of lower jaw black (Ref. 27547). In fresh water, with the approach of the breeding condition, the fish change to olive brown, red or purplish, the color change being more marked in males than in females (Ref. 27547).
Body shape (shape guide): fusiform / normal; Cross section: compressed.
Body shape (shape guide): fusiform / normal; Cross section: compressed.
Adults return to natal streams from the sea to spawn (Ref. 27547). Fry may migrate to the sea after only 3 months in fresh water, some may stay for as long as 3 years, but generally most stay a year in the stream before migrating (Ref. 27547). Some individuals remain close inshore throughout their lives, but some make extensive migrations (Ref. 27547, 44894). Also found in lakes (Ref. 1998). Possibly up to 375 m depth (Ref. 6793). Epipelagic (Ref. 58426). Food in streams is mainly terrestrial insects and small crustaceans; in the sea, major food items include fishes, crustaceans, and other invertebrates (Ref. 27547). Young are preyed upon by fishes and birds (such as mergansers and kingfishers); adults are prey of large mammals and large birds (Ref. 1998). Highly regarded game fish (Ref. 27547). Flesh is usually red, but some are white; the red meat commands a higher price (Ref. 27547). Marketed fresh, smoked, frozen, and canned. Eaten steamed, fried, broiled, boiled, microwaved, and baked (Ref. 9988). Viscera said to contain high vitamin A content and used successfully as food for hatchery fish (Ref. 28971, 28977).
Cycle de vie et comportement reproducteur Maturité | Reproduction | Frai | Œufs | Fécondité | Larves
Adults migrate up to 4,827 km upstream to spawn (Ref. 6850). Migration from the sea begins in December so that the the first fish are near river mouths by spring (Ref. 27547). Once a female selects a spot, she begins to dig a nest, driving away other females during the period of nest building. The female is attended by a larger, dominant male and several smaller males who drive away other males. While the female digs the nest, the male courts her by coming to rest beside her and quivering; by swimming about over her, touching her dorsal fin with his body and fins; and occasionally nudging her side gently with his snout (Ref. 28978). Upon completion of the nest, the female drops into it and is immediately joined by the dominant male. The fish open their mouths, vibrate, and eggs and sperm are released. At this point smaller males may dart into the nest and release sperm. The female then quickly moves to the upstrem edge of the nest and begins to dig. The eggs are covered and a new nest is made. The whole process is repeated until the female releases all her eggs, which may take several days. The male then leaves the female and may mate with another female. The female guards the nest for as long as she can. Spent adults usually die a few days after spawning. (Ref. 1998, 27547).
Reproductive strategy: synchronous ovarian organization, determinate fecundity (Ref. 51846).
Référence principale
Téléchargez vos références | Références | Coordinateur | Collaborateurs
Page, L.M. and B.M. Burr, 2011. A field guide to freshwater fishes of North America north of Mexico. Boston : Houghton Mifflin Harcourt, 663p. (Ref. 86798)
Statut dans la liste rouge de l'IUCN (Ref. 130435: Version 2025-2 (Global))
Préoccupation mineure (LC) ; Date assessed: 18 September 2020
CITES
Not Evaluated
Menace pour l'homme
Potential pest (Ref. 12257)
Utilisations par l'homme
Pêcheries: hautement commercial; Aquaculture: commercial; pêche sportive: oui; Aquarium: Aquariums publics
FAO - Systèmes d'aquaculture: production; pêcheries: débarquements, Résumé espèce; Publication: search | FishSource | Sea Around Us
Plus d'informations
Écologie trophique
Aliments (proies)
Composition du régime alimentaire
Consommation alimentaire
Rations alimentaires
Prédateurs
Aliments (proies)
Composition du régime alimentaire
Consommation alimentaire
Rations alimentaires
Prédateurs
Dynamique des populations
Paramètres de croissance
Âges / tailles maximales
Longueur-poids rel.
Rel. longueur-longueur.
Fréquences de longueurs
Conversion de masse
Recrutement
Abondance
Paramètres de croissance
Âges / tailles maximales
Longueur-poids rel.
Rel. longueur-longueur.
Fréquences de longueurs
Conversion de masse
Recrutement
Abondance
Anatomie
Surface branchiale
Cerveau
Otolithe
Surface branchiale
Cerveau
Otolithe
Physiologie
Composition corporelle
Nutriments
Consommation d'oxygène
Type de natation
Vitesse de nage
Pigments visuels
Son de poisson
Maladies et parasites
Toxicité (CL50)
Composition corporelle
Nutriments
Consommation d'oxygène
Type de natation
Vitesse de nage
Pigments visuels
Son de poisson
Maladies et parasites
Toxicité (CL50)
Liées à l'homme
Systèmes d'aquaculture
Profils d'aquaculture
Souches
Cas de ciguatera
Timbres, pièces de monnaie, divers
Systèmes d'aquaculture
Profils d'aquaculture
Souches
Cas de ciguatera
Timbres, pièces de monnaie, divers
Outils
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Articles particuliers
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Sources Internet
AFORO (otoliths) | Alien/Invasive Species database | Aquatic Commons | BHL | Cloffa | Websites from users | FishWatcher | CISTI | Catalog of Fishes: Genre, Espèce | DiscoverLife | ECOTOX | FAO - Systèmes d'aquaculture: production; pêcheries: débarquements, Résumé espèce; Publication: search | Faunafri | Fishipedia | Fishtrace | GloBI | Google Books | Google Scholar | Google | IGFA World Record | Bases de données nationales | OceanAdapt | OneZoom | Open Tree of Life | Otolith Atlas of Taiwan Fishes | Aquariums publics | PubMed | Reef Life Survey | Identification RFE | Socotra Atlas | TreeBase | Arbre de Vie | Wikipedia: aller à, chercher | World Records Freshwater Fishing | Zoological Record
Estimations basées sur des modèles
Température préférée (Réf. 123201): 0.7 - 8, mean 3.5 °C (based on 561 cells).
Indice de diversité phylogénétique (Réf. 82804): PD50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01047 (0.00488 - 0.02245), b=3.04 (2.87 - 3.21), in cm total length, based on LWR estimates for this Genus-body shape (Ref. 93245).
Niveau trophique (Réf. 69278): 4.4 ±0.7 se; based on diet studies.
Résilience (Réf. 120179): Milieu, temps minimum de doublement de population : 1,4 à 4,4 années (tm=4; tmax=9; Fec=4,000).
Prior r = 0.32, 95% CL = 0.21 - 0.48, Based on 10 full stock assessments.
Nutriments (Ref. 124155): Calcium = 18.6 [7.8, 45.2] mg/100g; Iron = 0.749 [0.406, 1.458] mg/100g; Protein = 19 [18, 20] %; Omega3 = 1 [0, 2] g/100g; Selenium = 261 [84, 762] μg/100g; VitaminA = 14.3 [4.2, 51.3] μg/100g; Zinc = 0.467 [0.323, 0.915] mg/100g (wet weight); based on nutrient studies.