पर्यावरण: पर्यावरण / जलवायु क्षेत्र / गहराई सीमा / वितरण सीमा
पारिस्थितिकी
समुद्री; स्वच्छ जल, अलवण जल; खारा ड़िमरसल; कैटाड़रोमस (Ref. 138280). Tropical; 25°N - 35°S
Western Indian Ocean: east coast rivers of Africa from Kenya south to Cape Agulhas, also in Madagascar and other western Indian Ocean islands (Ref. 7248, 52193). Reported from New Caledonia (Ref. 11889).
आकार / वज़न / आयु
परिपक्व अवधि: Lm ?  range ? - ? cm
Max length : 150 cm TL पुल्लिंग / अलिंग; (Ref. 3506); 120.0 cm SL (female); अधिकतम प्रकाशित वज़न: 5.7 kg (Ref. 52193); अधिकतम प्रकाशित वज़न: 5.7 kg; अधिकतम सूचित उम्र: 20 वर्षो (Ref. 48660)
पृष्ठीय रीढ़ (सम्पूर्ण) : 0; गुदा कांटा: 0.
Body shape (shape guide): eel-like; Cross section: circular.
Migratory species, which breeds in the ocean (Ref. 52331). Adults iInhabit both quiet and fast flowing water (Ref. 13337). Elvers ascend rivers mainly at night and overcome waterfalls and walls of dams with great determination. Adults usually sedentary. Females can attain 120 cm SL and are generally longer and heavier than males (Ref. 48660). Carnivorous, eats dead or living prey but especially fish and crabs. After feeding in fresh water for ten years or more, adults assume a silver breeding dress, the eyes become enlarged and they return to sea to breed. Considered to breed east of Madagascar, but thought to move south of that island on its way to the Mozambique coast and South African rivers (Ref. 13337). Flesh fatty but highly esteemed as smoked or jellied eel (Ref. 5214). Caught with various types of nets (Ref. 4967).
जीवन चक्र और संभोग व्यवहार
परिपक्व अवधि | पुनरुत्पत्ति | मछलीऔ का अंडे देना | अंडे | उपजाऊपन | लार्वा
Semelparous.
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)
आईयूसीएन रेड लिस्ट स्थिति (Ref. 130435: Version 2025-2 (Global))
मनुष्यों के लिए ख़तरा
Harmless
मानव उपयोग
मात्स्यिकी: व्यापारिक; जलीयकृषि: व्यापारिक; आखेट मत्स्य: हां
साधन
विशेष रिपोर्ट
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इंटरनेट स्रोत
मॉडल पर आधारित अनुमान
जातिवृति विविधता सूचकांक (संदर्भ 82804) |
PD50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.00089 (0.00051 - 0.00156), b=3.20 (3.05 - 3.35), in cm total length, based on LWR estimates for this species & Genus-body shape (Ref. 93245). |
ट्रॉफिक स्तर (संदर्भ 69278) |
3.3 ±0.55 se; based on food items. |
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Generation time |
26.8 ( na - na) years. Estimated as median ln(3)/K based on 1 growth studies. |
लौटाव (संदर्भ 120179) |
बहुत नीचे, न्यूनतम जनसंख्या दुगनी समय अवलागत 14 महीने। (K=0.04). |
मछली पकड़ने की भेद्यता (Ref. 59153) |
Very high vulnerability (81 of 100). 🛈 |
मूल्य श्रेणी (Ref. 80766) |
Unknown.
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