Classification / Names
Common names from other countries
Référence principale
Taille / Poids / Âge
Max length : 76.0 cm TL mâle / non sexé; (Ref. 6885); 61.7 cm SL (female); common length : 50.0 cm SL mâle / non sexé; (Ref. 188); poids max. publié: 5.5 kg (Ref. 7251); âge max. reporté: 13 années (Ref. 72462)
Length at first maturity
Lm ?, range 38 - 48.5 cm
Environnement
; marin; eau douce; saumâtre; anadrome (Ref. 51243); profondeur 0 - 250 m (Ref. 6793)
Climat / Gamme
Temperate, preferred 10°C (Ref. 107945); 61°N - 22°N, 115°E - 59°W (Ref. 188)
Distribution
North America: Newfoundland (Ref. 1998), the St. Lawrence River, and Nova Scotia southward to central Florida. Due to introductions into the Sacramento and Columbia Rivers, this species is now found from Cook Inlet, Alaska (Ref. 1998) to Baja California in Mexico and the Kamchatka Peninsula.
Pays | Zones FAO | Écosystèmes | Occurrences | Introductions
Description synthétique
Épines dorsales (Total): 0; Rayons mous dorsaux (Total): 15-19; Épines anales 0; Rayons mous anaux: 18 - 24; Vertèbres: 51 - 60. Moderately compressed, belly with a distinct keel. Lower jaw not rising steeply within mouth. Gill rakers long and slender (fewer in young). Silvery in color with blue or blue-green metallic luster on back (Ref. 1998). A dark spot on shoulder, sometimes followed by several more, or even a second row. Resembles A. pseudoharengus with lower jaw rising steeply within mouth, eyes larger, and fewer lower gill rakers, as also A. aestivalis and A. mediocris (Ref. 188). Silvery, with a green or bluish back (Ref. 7251). Branchiostegal rays 7 (Ref. 4639).
Statut dans la liste rouge de l'IUCN (Ref. 115185)
Menace pour l'homme
Harmless
Utilisations par l'homme
Pêcheries: commercial; pêche sportive: oui
Plus d'informations
CollaborateursImagesStamps, CoinsSonsCiguateraVitesseType de nageSurface branchialeOtolithesCerveauxVision
Outils
Articles particuliers
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Sources Internet
Estimates of some properties based on models
Phylogenetic diversity index
PD50 = 0.5000 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)
Niveau trophique
3.5 ±0.3 se; Based on diet studies.
Résilience
Faible, temps minimum de doublement de population : 4,5 à 14 années (K=0.14; tm=4.7)
Vulnérabilité
Moderate to high vulnerability (51 of 100)
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