Environment: milieu / climate zone / depth range / distribution range
生态学
海洋; 淡水; 半咸淡水 居于水底的; 降海洄游 (Ref. 51243); 深度上下限 1 - 400 m (Ref. 6898). ; 31°N - 35°S, 21°E - 134°W
Indo-Pacific: East Africa, inland Mozambique and lower Zambezi River to French Polynesia, north to southern Japan (Ref. 7050). Also rivers of Madagascar and adjacent islands (Ref. 52193).
大小 / 重量 / 年龄
Maturity: Lm ?  range ? - ? cm
Max length : 70.0 cm TL 雄鱼/尚未辨别雌雄; (Ref. 57749); 200.0 cm TL (female); common length : 26.3 cm TL 雄鱼/尚未辨别雌雄; (Ref. 35840); 最大体重: 20.5 kg (Ref. 13337); 最大体重: 20.5 kg; 最大年龄: 40 年 (Ref. 48660)
脊椎骨: 100 - 110. Diagnosis: Distinguished from all other species by the mottled colour and the long dorsal fin, which begins closer to the gill opening than to the anus (Ref. 9828).
Live in freshwater areas as adults, estuaries and seas as young (Ref. 12693). Found in lowland rivers as well as upland tributaries (Ref. 2847). While in river, the sex gland does not develop. But in winter when they move from the stream to river mouth, the sex gland begins to develop as mature individuals go to deep sea to breed (Ref. 45563). The spawning grounds are deep sea gullies among the south of the Philippines, east of Indonesia and Papua New Guinea (Ref. 45563). Are active at night, feeding on a wide range of prey (Ref. 7248, 79840), especially crabs, frogs and fish (Ref. 7248). Thought to breed east of Madagascar where the young are wafted to the East Coast by ocean currents (Ref. 13337, 79840).
Life cycle and mating behavior
成熟度 | 繁殖 | 产卵场 | 卵 | 孕卵数 | 仔鱼
Castle, P.H.J., 1984. Anguillidae. p. 34-37. In J. Daget, J.-P. Gosse and D.F.E. Thys van den Audenaerde (eds.) Check-list of the freshwater fishes of Africa (CLOFFA). ORSTOM, Paris and MRAC, Tervuren. Vol. 1. (Ref. 3506)
人类利用
渔业: 商业性; 养殖: 商业性; 游钓鱼种: 是的
更多信息
俗名同种异名新陈代谢捕食者生态毒物学繁殖成熟度产卵场产卵群集孕卵数卵卵的发育
参考文献养殖养殖信息品种遗传学Electrophoreses遗传率疾病加工NutrientsMass conversion
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Estimates based on models
Preferred temperature (Ref.
123201): 15.7 - 27.8, mean 24.5 °C (based on 725 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00076 (0.00037 - 0.00155), b=3.17 (3.00 - 3.34), in cm total length, based on LWR estimates for this Genus-body shape (Ref.
93245).
营养阶层 (Ref.
69278): 3.8 ±0.67 se; based on food items.
回复力 (Ref.
120179): 非常低的, 最小族群倍增时间超过14 年 (tmax=40).
Fishing Vulnerability (Ref.
59153): Very high vulnerability (90 of 100).