Environment: milieu / climate zone / depth range / distribution range
; air tawar; payau dasar (demersal); potamodromous (Ref. 51243). Subtropical; 22°C - 34°C (Ref. 36880)
Central and South America: Mexico to northern Argentina.
Size / Weight / umur
Maturity: Lm ?  range ? - ? cm
Max length : 150 cm TL jantan/; (Ref. 79717); common length : 50.0 cm TL jantan/; (Ref. 35237)
Morfologi | Morfometrik
Body cylindrical and long; eyes small; dorsal and anal fins vestigial (Ref. 26543).
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
Kematangan | Reproduksi, perkembang biakan | Pemijahan | telur-telur | Fecundity | Larva
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)
Status IUCN Red List (Ref. 123251)
CITES (Ref. 123416)
ancaman kepada manusia
Perikanan: komersial; Akuarium: Akuarium publik
mitraGambarStamps, Coins Misc.Suara-suaraCiguateraKecepatanTipe renangArea insangOtolithsOtakPenglihatan / visi
muat turun XML
Estimates based on models
Phylogenetic diversity index (Ref. 82805
= 0.6250 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00095 (0.00057 - 0.00161), b=3.10 (2.94 - 3.26), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245
Trophic level (Ref. 69278
): 2.8 ±0.51 se; based on food items.
Daya lenting (Ref. 120179
): sangat rendah, Waktu penggandaan populasi minimum lebih dari 14 tahun (Preliminary K or Fecundity.).
keancaman (Ref. 59153
): Very high vulnerability (83 of 100) .