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Merluccius bilinearis (Mitchill, 1814)

Silver hake
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Image of Merluccius bilinearis (Silver hake)
Merluccius bilinearis
Picture by Flescher, D.

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

Actinoptérygiens (poissons à nageoires rayonnées) > Gadiformes (Cods) > Merlucciidae (Merluccid hakes) > Merlucciinae
Etymology: Merluccius: Latin, mar, maris = the sea + Latin, lucius = pike (Ref. 45335).  More on author: Mitchill.

Environment: milieu / climate zone / depth range / distribution range Écologie

; marin dmersal; ocanodrome (Ref. 51243); profondeur 55 - 914 m (Ref. 58452).   Temperate; 55°N - 24°N, 80°W - 42°W (Ref. 54581)

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

Northwest Atlantic: coast of Canada and USA from Bell Isle Channel to the Bahamas; most common from southern Newfoundland to South Carolina.

Length at first maturity / Taille / Poids / Âge

Maturity: Lm 23.2  range ? - ? cm
Max length : 76.0 cm TL mâle / non sexé; (Ref. 1371); common length : 37.0 cm TL mâle / non sexé; (Ref. 1371); common length :65 cm TL (female); poids max. publié: 2.3 kg (Ref. 1371); âge max. reporté: 12 années (Ref. 1371)

Description synthétique Morphologie | Morphométrie

Épines dorsales (Total): 1; Rayons mous dorsaux (Total): 47-54; Épines anales 0; Rayons mous anaux: 37 - 41. Head large, about 30% of SL . Pectoral fins long, reaching origin of anal fin. Overall color is silvery, somewhat brownish on back, whitish on belly.

Biologie     Glossaire (ex. epibenthic)

Abundant on sandy grounds and strays into shallower waters. A voracious predator with cannibalistic habits. Individuals over 40 cm TL prey on fishes such as gadoids and herring, while smaller ones feed on crustaceans, i.e. euphausiids and pandalids; food also includes gaspereau, myctophids, smelt, silversides, mackerel, sand lance, butterfish, snakeblennies, longhorn sculpins and squids (Ref. 5951). The smallest specimen feeds mostly on crustaceans (Ref. 58452). Exhibits seasonal onshore-offshore migration (Ref. 9988). Spawning takes place from June-July in the mid-Atlantic region; July-August in the Gulf of Maine and to the north of Georges Bank, and August-September on the Scotian Shelf (Ref. 58452). Marketed fresh, smoked and frozen; fresh fish are exported to European markets; eaten fried, broiled, microwaved and baked (Ref. 9988).

Life cycle and mating behavior Maturité | Reproduction | Frai | Œufs | Fécondité | Larves

Spawning appears to be strongly influenced by water temperature, and annual variations occur both in the peak and the range of the spawning period, which may influence considerably the growth of juveniles.

Référence principale Upload your references | Références | Coordinateur | Collaborateurs

Cohen, D.M., T. Inada, T. Iwamoto and N. Scialabba, 1990. FAO species catalogue. Vol. 10. Gadiform fishes of the world (Order Gadiformes). An annotated and illustrated catalogue of cods, hakes, grenadiers and other gadiform fishes known to date. FAO Fish. Synop. 125(10). Rome: FAO. 442 p. (Ref. 1371)

Statut dans la liste rouge de l'IUCN (Ref. 120744)

  Quasi-menacé (NT) ; Date assessed: 06 January 2015

CITES (Ref. 115941)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Menace pour l'homme

  Harmless





Utilisations par l'homme

Pêcheries: hautement commercial
FAO(pêcheries: production, Résumé espèce; publication : search) | FishSource | 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
Collaborateurs
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Sons
Ciguatera
Vitesse
Type de nage
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Otolithes
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Estimates of some properties based on models

Preferred temperature (Ref. 115969): 0.9 - 7.8, mean 4.9 (based on 155 cells).
Phylogenetic diversity index (Ref. 82805):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00562 (0.00372 - 0.00849), b=3.11 (2.98 - 3.24), in cm Total Length, based on LWR estimates for this species & Genus-body shape (Ref. 93245).
Niveau trophique (Ref. 69278):  4.5   ±0.4 se; Based on diet studies.
Résilience (Ref. 69278):  Milieu, temps minimum de doublement de population : 1,4 à 4,4 années (K=0.18-0.4;tm=2-3; tmax=12).
Prior r = 0.37, 95% CL = 0.25 - 0.56, Based on 2 stock assessments.
Vulnérabilité (Ref. 59153):  Moderate to high vulnerability (54 of 100) .
Catégorie de prix (Ref. 80766):   Low.