Environnement : milieu / zone climatique / profondeur / gamme de distribution
Écologie
; eau douce démersal. Tropical
Central America: Caribbean and Pacific drainages of southern Mexico and Central America.
Longueur à la première maturité / Taille / Poids / Âge
Maturité: Lm 45.5, range 50 - 60 cm
Max length : 125 cm TL mâle / non sexé; (Ref. 36722); poids max. publié: 2.9 kg (Ref. 40637)
Description synthétique
Clés d'identification | Morphologie | Morphométrie
Facultative air-breathing (Ref. 126274); Inhabit backwaters and slow moving sections of rivers and lakes. Often found in the warm stagnant waters of the lowland. Visible on the surface and resemble floating logs. Enter shallow lakes at the beginning of the dry season to spawn and known to reproduce also in June and July when rains are heaviest and rivers flood their banks providing an ideal spawning habitat of flooded vegetation. Large schools form to cast thousands of eggs in a gelatinous mass in the shallow waters. The adults return again to the river leaving the fry amongst the flooded vegetation (Ref. 36880). The eggs are poisonous to eat (Ref. 4537).
Cycle de vie et comportement reproducteur
Maturité | Reproduction | Frai | Œufs | Fécondité | Larves
Ferraris, C.J. Jr., 2003. Lepisosteidae (Gars). p. 29. 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. 36722)
Statut dans la liste rouge de l'IUCN (Ref. 130435: Version 2025-2 (Global))
Menace pour l'homme
Poisonous to eat (Ref. 4537)
Utilisations par l'homme
Outils
Articles particuliers
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Sources Internet
Estimations basées sur des modèles
Indice de diversité phylogénétique (Réf. 82804) |
PD50 = 0.6426 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.00229 (0.00092 - 0.00573), b=3.19 (2.98 - 3.40), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245). |
Niveau trophique (Réf. 69278) |
4.2 ±0.73 se; based on food items. |
Résilience (Réf. 120179) |
Très faible, temps minimum de doublement de population supérieur à 14 ans (Preliminary K or Fecundity.). |
Vulnérabilité de la pêche (Ref. 59153) |
High to very high vulnerability (68 of 100). 🛈 |