環境：環境 / 気候帯 / 深さの範囲 / 分布範囲
生態学
海; 新鮮な水; 汽水性の 底生の; 降流性の (Ref. 138274). Tropical; 22°N - 27°S
Indo-Pacific: widespread in the tropical Indian Ocean and western Pacific. Known in Australia only from streams in the Kimberley regions of northern western Australia. Africa: widespread but relatively uncommon along east and southeast African coast and Madagascar (Ref. 7248, 52193). Mozambique; Lower Zambezi River (Ref. 39494). Most easily confused with Anguilla obscura and the surest way to distinguish them is by the count of vertebrae (Ref. 9828).
サイズ / 重さ / 年齢
成熟: Lm ? range ? - ? cm
Max length : 123 cm TL オス/雌雄の選別がない; (Ref. 6371); common length : 65.0 cm TL オス/雌雄の選別がない; (Ref. 2871); 最大記録サイズ: 20 年 (Ref. 48660)
背面の脊椎 (合計) : 0; 背鰭 (合計) : 240 - 245; 肛門の骨: 0; 臀鰭: 200 - 220; 脊つい: 105 - 115.
Body shape (shape guide): eel-like; Cross section: circular.
Adults inhabit freshwater streams and pools, preferring marshy habitats (Ref. 41236), in rivers and creeks, commonly over rock bottoms and in deeper pools and move as young to estuaries and seas (Ref. 12693). Seldom found in large rivers (Ref. 6028). Restricted to lowland (coastal) reaches of river systems (Ref. 7248). Adults descend to the sea to spawn (Refs. 52331, 79840). They feed on small fishes, crustaceans and mollusks. Reported to breed east of Madagascar; the south equatorial current probably carries the eel larvae and elvers towards the east coast of Africa where local coastal currents guide the elvers to suitable rivers which they invade and they stay there until sexually mature, when they return to their breeding grounds (Ref. 13337). Caught with various types of nets. Sometimes used in the aquarium trade (Ref. 6028).
ライフサイクルと交尾行動
成熟 | 繁殖 | 放精 | 卵 | 生産力 | 幼生
Kottelat, M., 2013. The fishes of the inland waters of Southeast Asia: a catalogue and core bibliography of the fishes known to occur in freshwaters, mangroves and estuaries. The Raffles Bulletin of Zoology 2013 (Suppl. 27):1-663. (Ref. 94476)
IUCNのレッドリストの状況は (Ref. 130435: Version 2025-2 (Global))
人間の用途
水産業: 少数商業の
用具
特記事項
XMLをダウンロードして下さい
インターネットの情報源
モデルに基づく推定値
好ましい温度 (参照
123201): 26.5 - 29.1, mean 28.3 °C (based on 1098 cells).
系統多様性指数 (参照
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).
栄養段階 (参照
69278): 3.6 ±0.50 se; based on food items.
回復力 (参照
120179): 低い, ４．５年～１４年の倍増期間の最小個体群 (tmax=20).
漁業の脆弱性 (Ref.
59153): High to very high vulnerability (74 of 100).
🛈
栄養素 (Ref.
124155): Calcium = 58.7 [34.4, 111.3] mg/100g; Iron = 0.801 [0.472, 1.318] mg/100g; Protein = 18.8 [17.0, 20.8] %; Omega3 = 0.29 [0.14, 0.60] g/100g; Selenium = 150 [74, 289] μg/100g; VitaminA = 13.3 [3.1, 51.7] μg/100g; Zinc = 0.925 [0.650, 1.373] mg/100g (wet weight); based on
nutrient studies.
