分类 / Names
俗名 | 同种异名 | Catalog of Fishes(属, 种) | ITIS | CoL | WoRMS | Cloffa
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
生态学
海洋 深海底的; 海洋洄游的; 深度上下限 50 - 500 m (Ref. 1371). ; 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 / 大小 / 重量 / 年龄
Maturity: Lm ?, range 32 - ? cm
Max length : 87.0 cm TL 雄鱼/尚未辨别雌雄; (Ref. 1371); common length : 50.0 cm TL 雄鱼/尚未辨别雌雄; (Ref. 1371)
背棘 (总数): 1; 背的软条 (总数): 45-54; 臀棘 0; 臀鳍软条: 36 - 42; 脊椎骨: 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).
Life cycle and mating behavior
成熟度 | 繁殖 | 产卵场 | 卵 | 孕卵数 | 仔鱼
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)
人类利用
渔业: 高经济性
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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).
营养阶层 (Ref.
69278): 4.3 ±0.6 se; based on diet studies.
回复力 (Ref.
120179): 中等的, 族群倍增时间最少 1.4 - 4.4年 (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.