Environnement : milieu / zone climatique / profondeur / gamme de distribution
Écologie
marin; saumâtre pelagic-oceanic; océanodrome (Ref. 51243); profondeur 1 - 550 m (Ref. 58302). Subtropical; 61°N - 52°S, 99°E - 70°W
North Pacific: Gulf of Alaska to southern California and Baja California and from Sakhalin Island in the southern Sea of Okhotsk south to northern Philippines. There are four substantiated records of this subspecies in the southern hemisphere: off Western Australia, southeast Pacific (37°11'S, 114°41'W) and Gulf of Papua (Ref. 10997). The species occurs mainly in the northern Pacific but ventures into New Zealand waters for at least three months during spring and early summer (Ref. 83312).
Taille / Poids / Âge
Maturité: Lm ?  range ? - ? cm
Max length : 300 cm FL mâle / non sexé; (Ref. 9340); common length : 200 cm FL mâle / non sexé; (Ref. 9340); poids max. publié: 450.0 kg (Ref. 47525); âge max. reporté: 15 années (Ref. 83312)
Description synthétique
Clés d'identification | Morphologie | Morphométrie
Mean number of gill rakers 35.9. First ventrally directed parapophysis on vertebra number 8. Dorsal wall of body cavity has a narrow bulge with lateral concavity and wide lateral trough. Caudal keels dark.
Body shape (shape guide): fusiform / normal.
Epipelagic, usually oceanic, but seasonally coming close to shore (Ref. 168). Tolerates ample temperature intervals (Ref. 168). Forms schools by size, sometimes with other scombrids (Ref. 168). Migrates between June and September in a northward direction along the coast of Baja California, Mexico and California (Ref. 168). A voracious predator that feeds on a wide variety of small schooling fishes and squids, also on crabs crabs and to a lesser degree on sessile organisms (Ref. 168). Marketed fresh and frozen.
Cycle de vie et comportement reproducteur
Maturité | Reproduction | Frai | Œufs | Fécondité | Larves
Collette, B.B., 1995. Scombridae. Atunes, bacoretas, bonitos, caballas, estorninos, melva, etc. p. 1521-1543. In W. Fischer, F. Krupp, W. Schneider, C. Sommer, K.E. Carpenter and V. Niem (eds.) Guia FAO para Identification de Especies para lo Fines de la Pesca. Pacifico Centro-Oriental. 3 Vols. FAO, Rome. (Ref. 9340)
Statut dans la liste rouge de l'IUCN (Ref. 130435: Version 2025-2 (Global))
Menace pour l'homme
Harmless
Utilisations par l'homme
Pêcheries: hautement commercial; Aquaculture: commercial; pêche sportive: oui
Outils
Articles particuliers
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Sources Internet
Estimations basées sur des modèles
Indice de diversité phylogénétique (Réf. 82804) |
PD50 = 0.5039 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
|
a=0.01349 (0.00624 - 0.02918), b=3.03 (2.86 - 3.20), in cm total length, based on LWR estimates for this Genus-body shape (Ref. 93245). |
Niveau trophique (Réf. 69278) |
4.5 ±0.3 se; based on size and trophs of closest relatives |
|
Generation time |
10.6 ( na - na) years. Estimated as median ln(3)/K based on 2 growth studies. |
Résilience (Réf. 120179) |
Milieu, temps minimum de doublement de population : 1,4 à 4,4 années (K=0.15; tm=3-5; tmax=15). |
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Rate of population increase |
Prior r = 0.25, 95% CL = 0.17 - 0.38, Based on 3 full stock assessments. |
Vulnérabilité de la pêche (Ref. 59153) |
Very high vulnerability (76 of 100). 🛈 |
Vulnérabilité climatique (Ref. 125649) |
Moderate vulnerability (38 of 100). 🛈 |
Catégorie de prix (Ref. 80766) |
Very high.
|
Nutriments (Ref. 124155) |
Calcium = 18.3 [10.0, 32.3] mg/100g; Iron = 2.32 [0.96, 5.79] mg/100g; Protein = 24.2 [22.7, 25.5] %; Omega3 = 0.403 [0.246, 0.662] g/100g; Selenium = 42.6 [16.1, 118.0] μg/100g; VitaminA = 21.5 [2.9, 199.3] μg/100g; Zinc = 0.355 [0.211, 0.717] mg/100g (wet weight); based on nutrient studies. |