Environment: milieu / climate zone / depth range / distribution range
Écologie
; eau douce; saumâtre benthopélagique; pH range: 7.0 - 7.5; dH range: 20 - 30; non migrateur. Tropical; 22°C - 28°C (Ref. 12468); 19°N - 14°N
North and Central America: Rio San Juan, Mexico to Guatemala. At least one country reports adverse ecological impact after introduction.
Taille / Poids / Âge
Maturity: Lm ? range ? - ? cm
Max length : 11.0 cm SL mâle / non sexé; (Ref. 30499); common length : 4.0 cm TL mâle / non sexé; (Ref. 12193)
Occurs in warm springs and their effluents, canals and weedy ditches, and stream pools (Ref. 5723). Food is mainly detritus (Ref. 36880). Some populations in caves (Ref. 27297).
Life cycle and mating behavior
Maturities | Reproduction | Spawnings | Egg(s) | Fecundities | Larves
28 days after fertilization female gives birth to 30-80 young. Sexual maturity is reached after 7-12 months (Ref. 2060).
Proudlove, G.S., 1997. A synopsis of the hypogean fishes of the world. p. 351-354. In Proceedings of the 12th International Congress of Speleology, La Chaux de Fonds, Switzerland. vol. 3. (Ref. 27297)
Statut dans la liste rouge de l'IUCN (Ref. 130435)
Menace pour l'homme
Potential pest (Ref. 1982)
Utilisations par l'homme
Pêcheries: sans intérêt; Aquarium: Commercial; appât: occasionally
Outils
Articles particuliers
Télécharger en XML
Sources Internet
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01047 (0.00646 - 0.01697), b=3.11 (2.98 - 3.24), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245).
Niveau trophique (Ref.
69278): 2.0 ±0.00 se; based on food items.
Résilience (Ref.
120179): Milieu, temps minimum de doublement de population : 1,4 à 4,4 années (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
