Environnement : milieu / zone climatique / profondeur / gamme de distribution
Écologie
marin pelagic-neritic; océanodrome (Ref. 51243); profondeur 0 - 18 m (Ref. 2850). Temperate; 58°N - 24°N, 155°W - 111°W
Eastern Pacific: Alaska to Magdalena Bay, Baja California. Not common north of Point Conception (Ref. 11484).
Taille / Poids / Âge
Maturité: Lm ?  range ? - ? cm
Max length : 145 cm FL mâle / non sexé; (Ref. 40637); poids max. publié: 12.0 kg (Ref. 40637); âge max. reporté: 12 années (Ref. 56049)
Description synthétique
Clés d'identification | Morphologie | Morphométrie
Épines dorsales (Total) : 6; Rayons mous dorsaux (Total) : 9 - 10; Épines anales: 1; Rayons mous anaux: 8 - 9. Color bluish or brownish dorsally, silvery ventrally (Ref. 6885).
Body shape (shape guide): elongated.
Usually near shore or near the surface (Ref. 2850). Often in small schools (Ref. 2850). Young enter bays (Ref. 2850). Feed mainly on other fishes (Ref. 2850). Pelagic spawners (Ref. 56049). Migrate south from the California coast during autumn, but may remain in front of the Mexican coast throughout the year (Ref. 9345). Utilized fresh, dried or salted and frozen; eaten broiled and baked (Ref. 9988). Considered as potentially dangerous due to its large, sharp teeth and aggressive disposition, though there are no reports of attacks (Ref. 9988).
Cycle de vie et comportement reproducteur
Maturité | Reproduction | Frai | Œufs | Fécondité | Larves
Pelagic spawner (Ref. 56049).
Eschmeyer, W.N., E.S. Herald and H. Hammann, 1983. A field guide to Pacific coast fishes of North America. Boston (MA, USA): Houghton Mifflin Company. xii+336 p. (Ref. 2850)
Statut dans la liste rouge de l'IUCN (Ref. 130435: Version 2025-2 (Global))
Menace pour l'homme
Traumatogenic (Ref. 13513)
Utilisations par l'homme
Pêcheries: 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 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.00708 (0.00333 - 0.01504), b=2.92 (2.75 - 3.09), in cm total length, based on LWR estimates for this Genus-body shape (Ref. 93245). |
Niveau trophique (Réf. 69278) |
4.5 ±0.80 se; based on food items. |
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Generation time |
7.9 ( na - na) years. Estimated as median ln(3)/K based on 1 growth studies. |
Résilience (Réf. 120179) |
Milieu, temps minimum de doublement de population : 1,4 à 4,4 années (K=0.14; tm=2-3; tmax=12; Fec=42,000). |
Vulnérabilité de la pêche (Ref. 59153) |
High to very high vulnerability (69 of 100). 🛈 |
Catégorie de prix (Ref. 80766) |
Medium.
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