Environment: milieu / climate zone / intervalo de profundidade / distribution range
Ecologia
; Água doce; estuarina demersal; potamódromo (Ref. 51243). Subtropical; 22°C - 34°C (Ref. 36880)
Central and South America: Mexico to northern Argentina.
Tamanho / Peso / Idade
Maturidade: Lm ? range ? - ? cm
Max length : 150 cm TL macho/indeterminado; (Ref. 79717); common length : 50.0 cm TL macho/indeterminado; (Ref. 35237)
Descrição breve
Chaves de identificação | Morfologia | Morfometria
Body cylindrical and long; eyes small; dorsal and anal fins vestigial (Ref. 26543).
Body shape (shape guide): eel-like.
Facultative air-breathing (Ref. 126274); Anguilliform, has no pectoral and ventral fins; its dorsal and anal fins are vestigial (Ref. 27188). Adults inhabit streams, ponds, canals, drains, rice fields, both clear and turbid water (Ref. 11225). Nocturnal (Ref. 11225). Carnivore (Ref. 26543). The male guards and builds nest or burrow (Ref. 205). A protogynous hermaphrodite (Ref. 55367). Its being a facultative air-breather (Ref. 1468) explains, at least in part, why it is often missing from faunal inventories. At the start of the dry season when there's a decline in water level, it digs a tubular burrow in a bank or on the bottom. This burrow, which is for the most part sub-horizontal , can have several diverticula, followed by a vertical section which leads to the exterior by only one opening. Although breathing is slowed down, the fish remains active and flees if it is disturbed (Ref. 27188).
Life cycle and mating behavior
Maturidade | Reprodução | Desova | Ovos | Fecundidade | Larvas
A diandric species having both primary and secondary male developmental pathways. Length at sex change = 34.0 cm TL (Ref. 55367). Also Ref. 35344, 103751.
Kullander, S.O., 2003. Family Synbranchidae (Swamp-eels). p. 594-595. In R.E. Reis, S.O. Kullander and C.J. Ferraris, Jr. (eds.) Checklist of the Freshwater Fishes of South and Central America. Porto Alegre: EDIPUCRS, Brasil. (Ref. 79717)
Categoria na Lista Vermelha da IUCN (Ref. 130435: Version 2024-2)
Ameaça para o homem
Harmless
Utilização humana
Pescarias: espécies comerciais; Aquário: Aquários públicos
Ferramentas
Relatórios especiais
Descarregue XML
Fontes da internet
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.6250 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00091 (0.00058 - 0.00143), b=3.08 (2.95 - 3.21), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245).
Nível Trófico (Ref.
69278): 2.8 ±0.51 se; based on food items.
Resiliência (Ref.
120179): Muito baixo, tempo mínimo de duplicação da população maior que 14 anos (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Very high vulnerability (90 of 100).
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Nutrients (Ref.
124155): Calcium = 61.2 [27.2, 179.0] mg/100g; Iron = 1.04 [0.48, 2.53] mg/100g; Protein = 18.6 [16.4, 20.6] %; Omega3 = 0.137 [0.065, 0.296] g/100g; Selenium = 18.4 [7.0, 49.4] μg/100g; VitaminA = 10.4 [2.5, 42.9] μg/100g; Zinc = 0.889 [0.522, 1.479] mg/100g (wet weight);
