Issue
A different species/subspecies is recognized on the Peruvian coasts Etropus peruanus Ginsburg, 1954, that is recognized in FishBase as a provisionally valid species. More studies are needed to clearly differentiate it (March 2021).
Environment: milieu / climate zone / depth range / distribution range
Ökologie
seewasser bathydemersal; ozeanodrom; tiefenbereich 50 - 500 m (Ref. 1371). Deep-water; 5°S - 46°S, 81°W - 69°E (Ref. 54583)
Southeast Pacific: off the coast of Chile from Arica to Chiloé Island.
Length at first maturity / Size / Gewicht / Alter
Maturity: Lm ?, range 32 - ? cm
Max length : 87.0 cm TL Männchen/unbestimmt; (Ref. 1371); common length : 50.0 cm TL Männchen/unbestimmt; (Ref. 1371)
Rückenflossenstacheln (insgesamt): 1; Rückenflossenweichstrahlen (insgesamt): 45-54; Afterflossenstacheln 0; Afterflossenweichstrahlen: 36 - 42; Wirbelzahl: 49 - 53. 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). Migrates vertically to midwater at night to feed on fishes, squids and euphausiids (Ref. 27363). Moves to southern coastal areas in summer and migrates to northern deeper waters (200-500 m depth) in winter and spring (Ref. 27363). Spawning occurs at the end of the winter and during the southern spring (Ref. 58452). Marketed fresh and frozen (Ref. 1371) and eaten steamed, fried, boiled and microwaved (Ref. 9988). Also utilized as fishmeal (Ref. 1371).
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)
IUCN Rote Liste Status (Ref. 130435)
Bedrohung für Menschen
Harmless
Nutzung durch Menschen
Fischereien: hoch kommerziell
Mehr Information
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Estimates based on models
Preferred temperature (Ref.
123201): 9.3 - 14, mean 10.9 °C (based on 38 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01413 (0.00630 - 0.03168), b=3.05 (2.85 - 3.25), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245).
Trophic level (Ref.
69278): 4.3 ±0.6 se; based on diet studies.
Widerstandsfähigkeit (Ref.
120179): mittel, Verdopplung der Population dauert 1,4 - 4,4 Jahre. (K=0.1-0.2; tm=2).
Fishing Vulnerability (Ref.
59153): High vulnerability (61 of 100).
Climate Vulnerability (Ref.
125649): High vulnerability (62 of 100).
Nutrients (Ref.
124155): Calcium = 8.76 [3.94, 31.98] mg/100g; Iron = 0.342 [0.068, 0.925] mg/100g; Protein = 17.6 [16.3, 18.9] %; Omega3 = 0.216 [0.103, 0.404] g/100g; Selenium = 22 [10, 49] μg/100g; VitaminA = 11.9 [2.5, 54.2] μg/100g; Zinc = 0.223 [0.154, 0.356] mg/100g (wet weight); based on
nutrient studies.
