Teleostei >
Anguilliformes (Eels and morays)
鰻鱺目 (Eels and morays) >
Anguillidae (Freshwater eels)
鰻鱺科 (Freshwater eels)
Etymology: Anguilla: Latin, anguilla, .-ae = eel (Ref. 45335).
More on authors: Quoy & Gaimard.
Environment: milieu / climate zone / depth range / distribution range
生態學
海洋; 淡水; 半鹹淡水 居於水底的; 降海洄游 (Ref. 51243); 深度上下限 0 - 3000 m (Ref. 86942). 熱帶; 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).
印度-太平洋: 東非到法屬玻里尼西亞, 北至日本南部。 非洲: 內陸的莫三比克與尚比西河下游河。
大小 / 重量 / 年齡
Maturity: Lm ? range ? - ? cm
Max length : 70.0 cm TL 雄魚/尚未辨別雌雄; (Ref. 57749); 200.0 cm TL (female); common length : 26.3 cm TL 雄魚/尚未辨別雌雄; (Ref. 35840); 最大體重: 20.5 kg (Ref. 13337); 最大體重: 20.5 kg; 最大年齡: 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).
在灰黃色的背景上的他們的背部上成魚有一個褐色或黑色的大理石紋。 這一個顏色能逐漸褪色。 白色的腹面。 較年輕的標本是略灰色的到橘色的與大理石紋是比較不看得見.(參考文獻 48622) 體色褐色小的斑點散佈在背面，側邊與鰭上; 在小的斑點與胸鰭的邊緣之間的黃色; 腹部白色或藍灰色.(參考文獻 45563) 頭部圓的; 吻扁平的; 下頜伸出; 鰓裂小的; 鱗片像纏結的一樣在皮膚下面; 胸鰭圓的; 腹鰭不存在。 (參考文獻 45563) 與所有的其他種區分了藉由斑點的顏色與長的背鰭, 超過到肛門起點較靠近鰓裂.(參考文獻 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).
當成魚時生活在淡水水域, 當幼魚時的河口與海洋.(參考文獻 12693) 發現於低地的河了以及丘陵地支流.(參考文獻 2847) 在河中的時候, 魚的性別腺不會發育而冬天時它跟隨溪流到河口在哪裡性別腺開始發育，而且然後它去到深的海洋繁殖.(參考文獻 45563) 它的產卵場是在菲律賓南方, 印尼以東與巴布亞新幾內亞之中的深海洋小峽谷。 (參考文獻 45563) 棲息於深的岩石水池而且是活躍的在晚上,吃寬範圍的獵物, 尤其螃蟹，青蛙與魚.(參考文獻 7248) 一般認為繁殖於幼魚被洋流浮動到東海岸的馬達加斯加東方了。 (參考文獻 13337)
Life cycle and mating behavior
Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 仔魚
印度-太平洋: 東非到法屬玻里尼西亞, 北至日本南部。 非洲: 內陸的莫三比克與尚比西河下游河。
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)
IUCN 瀕危狀態 (Ref. 130435)
無危 (LC) ; Date assessed: 06 November 2018
人類使用
漁業: 商業性; 養殖: 商業性; 游釣魚種: 是的
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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).
營養階層 (Ref.
69278): 3.8 ±0.67 se; based on food items.
Generation time: 2.2 ( na - na) years. Estimated as median ln(3)/K based on 1
growth studies.
回復力 (Ref.
120179): 非常低的, 最小族群倍增時間超過14 年 (tmax=40).
Fishing Vulnerability (Ref.
59153): Moderate vulnerability (42 of 100).
