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Oncorhynchus keta  (Walbaum, 1792)

Chum salmon
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Oncorhynchus keta   AquaMaps   Data sources: GBIF OBIS
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Image of Oncorhynchus keta (Chum salmon)
Oncorhynchus keta
Picture by Keeley, E.R.

Classification / Names Noms communs | Synonymes | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

Actinoptérygiens (poissons à nageoires rayonnées) > Salmoniformes (Salmons) > Salmonidae (Salmonids) > Salmoninae
Etymology: Oncorhynchus: Greek, onyx, -ychos = nail + Greek, rhyngchos = snout (Ref. 45335).

Environnement / Climat / Gamme Écologie

; marin; eau douce; saumtre benthoplagique; anadrome (Ref. 51243); profondeur 0 - 250 m (Ref. 50550).   Temperate; ? - 24°C (Ref. 35682); 67°N - 24°N, 130°E - 110°W (Ref. 54684)

Length at first maturity / Taille / Poids / Âge

Maturity: Lm 70.0  range ? - ? cm
Max length : 100.0 cm FL mâle / non sexé; (Ref. 559); common length : 58.0 cm TL mâle / non sexé; (Ref. 3561); poids max. publié: 15.9 kg (Ref. 40637); âge max. reporté: 7 années (Ref. 1998)

Description synthétique Morphologie | Morphométrie

Épines dorsales (Total): 0; Rayons mous dorsaux (Total): 10-14; Épines anales 0; Rayons mous anaux: 13 - 17; Vertèbres: 59 - 71. Distinguished by the lack of distinct black spots on the back and tail and by the presence of 18 to 28 short, stout, smooth gill rakers on the first arch (Ref. 27547). Pelvic fins with axillary process; caudal truncate to slightly emarginate (Ref. 27547). Large individuals are steel-blue dorsally, with speckles of black; silver on the sides; silvery to white ventrally. Males have tinges of black on the tips of its caudal, anal and pectoral fins. Spawning males are dark olive to black dorsally; grey-red with green vertical bars on the sides; dark grey ventrally; anal and pelvic fins with white tips. Spawning females resemble spawning males but less distinctly marked.

Distribution Pays | Zones FAO | Écosystèmes | Occurrences | Point map | Introductions | Faunafri

North Pacific: Korea , Japan, Okhotsk and Bering Sea (Ref. 1998), Arctic Alaska south to San Diego, California, USA. Asia: Iran (Ref. 39702).

Biologie     Glossaire (ex. epibenthic)

Inhabits ocean and coastal streams. Migrating fry form schools in estuaries, remain close to shore for a few months and finally disperse to enter the sea (Ref. 1998). Epipelagic (Ref. 58426). Juveniles and adults feed mainly on copepods, tunicates and euphausiids but also on pteropods, squid and small fishes (Ref. 1998). Adults cease feeding in freshwater (Ref. 1998). Males and females die after spawning. The catch is mostly canned but also sold fresh, dried-salted, smoked, and frozen. Eaten steamed, fried, broiled, boiled, microwaved, and baked (Ref. 9988). Utilized for caviar. The Alaska Salmon fishery of this species has been certified by the Marine Stewardship Council (http://www.msc.org/) as well-managed and sustainable (http://www.msc.org/html/content_485.htm).

Référence principale Upload your references | Références | Coordinateur | Collaborateurs

Page, L.M. and B.M. Burr, 1991. A field guide to freshwater fishes of North America north of Mexico. Houghton Mifflin Company, Boston. 432 p.

Statut dans la liste rouge de l'IUCN (Ref. 90363)

  Non évalué 

CITES (Ref. 94142)

Not Evaluated

Menace pour l'homme

  Harmless




Utilisations par l'homme

Pêcheries: hautement commercial; Aquaculture: commercial; pêche sportive: oui; Aquarium: Aquariums publics
FAO(Aquaculture: production; pêcheries: production, species profile; publication : search) | FisheriesWiki | Sea Around Us

Plus d'informations

Taille/Âge
Croissance
Longueur-poids
Longueur-longueur
Fréquences de longueurs
Morphométrie
Morphologie
Larves
Dynamique des populations larvaires
Recrutement
Abondance
Références
Aquaculture
Profil d'aquaculture
Souches
Génétique
Fréquences alléliques
Héritabilité
Pathologies
Traitement
Mass conversion
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Estimates of some properties based on empirical models

Phylogenetic diversity index (Ref. 82805):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01780 (0.00946 - 0.03348), b=3.12 (2.96 - 3.28), based on LWR estimates for species & Genus-BS (Ref. 93245).
Niveau trophique (Ref. 69278):  3.5   ±0.5 se; Based on diet studies.
Résilience (Ref. 69278):  Milieu, temps minimum de doublement de population : 1,4 à 4,4 années (K=0.27-0.45; tm=2-5; tmax=6).
Vulnérabilité (Ref. 59153):  Moderate to high vulnerability (49 of 100) .
Catégorie de prix (Ref. 80766):   Medium.