Ambiente: milieu / zona climática / intervalo de profundidade / gama de distribuição
Ecologia
marinhas; Água doce; estuarina demersal; catádromo (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).
Tamanho / Peso / Idade
Maturidade: Lm ? range ? - ? cm
Max length : 150 cm TL macho/indeterminado; (Ref. 3506); 120.0 cm SL (female); peso máx. Publicado: 5.7 kg (Ref. 52193); peso máx. Publicado: 5.7 kg; Idade máx. registada: 20 anos (Ref. 48660)
Espinhos dorsais (total) : 0; Espinhos anais: 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).
Ciclo de vida e comportamento de acasalamento
Maturidade | Reprodução | Desova | Ovos | Fecundidade | Larvas
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)
Categoria na Lista Vermelha da IUCN (Ref. 130435: Version 2025-2 (Global))
Ameaça para o homem
Harmless
Utilização humana
Pescarias: espécies comerciais; Aquacultura: espécies comerciais; peixe desportivo: sim
Ferramentas
Relatórios especiais
Descarregue XML
Fontes da internet
Estimativas baseadas em modelos
Temperatura preferida (Ref.
123201): 19.6 - 27.5, mean 26.4 °C (based on 98 cells).
Índice de diversidade filogenética (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: 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).
Nível Trófico (Ref.
69278): 3.3 ±0.55 se; based on food items.
Generation time: 26.8 ( na - na) years. Estimated as median ln(3)/K based on 1
growth studies.
Resiliência (Ref.
120179): Muito baixo, tempo mínimo de duplicação da população maior que 14 anos (K=0.04).
Vulnerabilidade da pesca (Ref.
59153): Very high vulnerability (81 of 100).
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