分类 / Names
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Teleostei >
Scombriformes (Mackerels) >
Scombridae (Mackerels, tunas, bonitos) > Scombrinae
Etymology: Allothunnus: Greek, allos = other + Greek, thynnos = tunna (Ref. 45335).
Environment: milieu / climate zone / depth range / distribution range
生态学
海洋; 海洋洄游的 (Ref. 51243); 深度上下限 0 - 20 m (Ref. 86942). ; 10°S - 50°S, 180°W - 180°E (Ref. 168)
Southern Ocean: circumglobal. One individual taken in Los Angeles Harbor.
大小 / 重量 / 年龄
Maturity: Lm ? range ? - ? cm
Max length : 105 cm FL 雄鱼/尚未辨别雌雄; (Ref. 5313); common length : 86.0 cm TL 雄鱼/尚未辨别雌雄; (Ref. 9684); 最大体重: 13.7 kg (Ref. 5313)
背棘 (总数): 15 - 18; 背的软条 (总数): 12-13; 臀棘 0; 臀鳍软条: 13 - 14; 脊椎骨: 40. Interpelvic process small and bifid. Body naked ventrally behind the long anterior corselet. Dorsal half of body to lateral line covered with scales. Swim bladder absent. The back is bluish, turning to deep purple or almost black on the head; the belly is white, without stripes or spots; the pectoral and pelvic fins purple, their inner sides black.
An occasionally schooling species which feeds mainly on krill (euphausiids), and also on squids and small fishes. Juveniles are found between 20 and 35°S at surface temperatures ranging from 19 to 24°C. Its flesh is paler than that of most true tunas and is very oily, but the cooked meat has fine eating qualities. Mainly marketed fresh.
主要捕食磷虾 (磷虾), 以及吃乌贼与小鱼的一个偶然群游性种。 稚鱼在表面的温度范围从 19 到 24个 ° C. 在 20 与 35个 °S 之间被发现 它的肉是大多数真实的鲔鱼比那灰白而且非常多油, 但是被煮的肉有细的口感。 主要地在市场上销售生鲜地了。
Life cycle and mating behavior
成熟度 | 繁殖 | 产卵场 | 卵 | 孕卵数 | 仔鱼
Collette, B.B. and C.E. Nauen, 1983. FAO Species Catalogue. Vol. 2. Scombrids of the world. An annotated and illustrated catalogue of tunas, mackerels, bonitos and related species known to date. Rome: FAO. FAO Fish. Synop. 125(2):137 p. (Ref. 168)
人类利用
渔业: 低经济
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Estimates based on models
Preferred temperature (Ref.
123201): 15.8 - 24.6, mean 18.4 °C (based on 182 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 1.0000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00955 (0.00464 - 0.01966), b=3.05 (2.88 - 3.22), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
营养阶层 (Ref.
69278): 3.7 ±0.1 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 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): High to very high vulnerability (70 of 100).
Nutrients (Ref.
124155): Calcium = 47.8 [25.9, 89.1] mg/100g; Iron = 1.57 [0.92, 2.77] mg/100g; Protein = 21.7 [20.5, 22.9] %; Omega3 = 0.3 [0.2, 0.5] g/100g; Selenium = 19.6 [10.4, 39.2] μg/100g; VitaminA = 13.3 [4.8, 40.7] μg/100g; Zinc = 0.618 [0.430, 0.904] mg/100g (wet weight);
