Environnement : milieu / zone climatique / profondeur / gamme de distribution
Écologie
marin; saumâtre benthopélagique; océanodrome (Ref. 51243); profondeur 0 - 275 m (Ref. 58426), usually 30 - 100 m (Ref. 56557). Temperate; 63°N - 32°N, 145°E - 21°W (Ref. 57358)
Arctic, Northwest to Northeast Pacific: Arctic Alaska to the Sea of Japan and Balboa Island, southern California, USA. Western Atlantic: northern Quebec, Canada to North Carolina, USA. The Arctic and Pacific populations may be a separate species, distinct from the Atlantic populations (Ref. 7251).
Longueur à la première maturité / Taille / Poids / Âge
Maturité: Lm ?, range 11 - ? cm
Max length : 30.0 cm TL mâle / non sexé; (Ref. 56394); common length : 17.0 cm TL mâle / non sexé; (Ref. 56557); poids max. publié: 100.00 g (Ref. 56527); âge max. reporté: 11 années (Ref. 56557)
Description synthétique
Clés d'identification | Morphologie | Morphométrie
Épines dorsales (Total) : 0; Rayons mous dorsaux (Total) : 58 - 63; Épines anales: 0; Rayons mous anaux: 28 - 31; Vertèbres: 68 - 72. Resembles A personatus in body shape but distinguished by its numerous dorsal fin rays (58 to 63 against 55 to 59) an vertebrae (68 against 67), and larger eyes. Lateral plicae 144 to 161.
Body shape (shape guide): elongated.
May occur in large schools near the surface both inshore and offshore, but also buries itself in sand (Ref. 2850). Inshore, found from intertidal to subtidal areas (Ref. 2850). Offshore, found near the surface over deep water (Ref. 2850). Benthic (Ref. 58426). Juveniles and adults feed on zooplankton (Ref. 28499). Utilized dried or salted and frozen; sometimes targeted as a raw material for fishmeal; eaten fried (Ref. 9988).
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
Harmless
Utilisations par l'homme
Pêcheries: commercial
Outils
Articles particuliers
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Sources Internet
Estimations basées sur des modèles
Température préférée (Réf.
123201): 0.5 - 8.9, mean 3.4 °C (based on 527 cells).
Indice de diversité phylogénétique (Réf.
82804): PD
50 = 0.5078 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00263 (0.00134 - 0.00518), b=3.11 (2.94 - 3.28), in cm total length, based on LWR estimates for this species & Genus-body shape (Ref.
93245).
Niveau trophique (Réf.
69278): 3.1 ±0.1 se; based on diet studies.
Generation time: 3.9 ( 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 (tm=2-3).
Vulnérabilité de la pêche (Ref.
59153): Moderate vulnerability (35 of 100).
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Nutriments (Ref.
124155): Calcium = 33.2 [17.7, 66.8] mg/100g; Iron = 0.29 [0.16, 0.53] mg/100g; Protein = 18.3 [17.0, 19.5] %; Omega3 = 0.425 [0.202, 0.872] g/100g; Selenium = 15.9 [6.5, 35.7] μg/100g; VitaminA = 42.7 [13.4, 141.7] μg/100g; Zinc = 0.874 [0.593, 1.270] mg/100g (wet weight); based on
nutrient studies.