Issue
Provisionally valid species. When recognized, mainly considered as a subspecies of Merluccius gayi (Guichenot, 1848). Still more studies are needed to characterize it (March 2021).
Environment: milieu / climate zone / depth range / distribution range
Écologie
marin bathydémersal; océanodrome (Ref. 51243); profondeur 50 - 500 m (Ref. 1371). Deep-water; 4°S - 14°S
Southeast Pacific: off the coast of Peru, from Paita southward to Huarmey.
Length at first maturity / Taille / Poids / Âge
Maturity: Lm 35.0 range ? - ? cm
Max length : 68.0 cm TL mâle / non sexé; (Ref. 1371); 115.0 cm TL (female); common length : 50.0 cm TL mâle / non sexé; (Ref. 1371); âge max. reporté: 13 années (Ref. 9722)
Description synthétique
Clés d'identification | Morphologie | Morphométrie
Épines dorsales (Total) : 1; Rayons mous dorsaux (Total) : 45 - 54; Épines anales: 0; Rayons mous anaux: 36 - 42. Caudal fin margin usually concave. Color is silvery on back, silvery whitish on belly. M. gayi gayi and M. gayi peruanus differ by the total number of vertebrae, total number of gill rakers and relative length of head (Ref. 1371).
Occurs from the shallow continental shelf to the upper continental slope (Ref. 1371). Sometimes found off the bottom or in midwater (Ref. 1371). Marketed fresh and frozen and also used for fishmeal (Ref. 1371).
Life cycle and mating behavior
Maturité | Reproduction | Frai | Œufs | Fécondité | Larves
Espino, M., R. Castillo and F. Fernandez, 1995. Biology and fisheries of Peruvian hake (M. gayi peruanus). p. 339-363. In J. Alheit and T. J. Pitcher (eds.) Hake:biology, fisheries and markets. Chapmanand Hall, London, 478 p. (Ref. 9718)
Statut dans la liste rouge de l'IUCN (Ref. 130435: Version 2024-1)
Menace pour l'homme
Harmless
Utilisations par l'homme
Pêcheries: hautement commercial
Outils
Articles particuliers
Télécharger en XML
Sources Internet
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = No PD50 data [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00525 (0.00322 - 0.00854), b=3.11 (2.96 - 3.26), in cm total length, based on LWR estimates for this species & Genus-body shape (Ref.
93245).
Niveau trophique (Ref.
69278): 4.4 ±0.6 se; based on diet studies.
Résilience (Ref.
120179): Milieu, temps minimum de doublement de population : 1,4 à 4,4 années (K=0.19-0.21; tmax=13).
Fishing Vulnerability (Ref.
59153): Moderate to high vulnerability (54 of 100).
Climate Vulnerability (Ref.
125649): Very high vulnerability (90 of 100).
Nutrients (Ref.
124155): Calcium = 10.9 [5.5, 38.6] mg/100g; Iron = 0.326 [0.063, 0.892] mg/100g; Protein = 17 [16, 18] %; Omega3 = 0.141 [0.074, 0.262] g/100g; Selenium = 22.4 [10.1, 50.5] μg/100g; VitaminA = 14 [3, 62] μg/100g; Zinc = 0.245 [0.168, 0.379] mg/100g (wet weight);
