Environment: milieu / climate zone / depth range / distribution range
Ekologi
; sötvatten bentopelagisk; pH range: 7.0 - 7.5; dH range: 10 - 20. Tropical; 26°C - 30°C (Ref. 2059)
Central and South America: Pacific drainage system from Darien, Panama to Rio Cauca, Colombia as well as in Lake Maracaibo, Venezuela. Known from the Catatumbo River (Ref. 26543).
Size / Vikt / Age
Maturity: Lm ? range ? - ? cm
Max length : 3.0 cm TL hane/ej könsbestämd; (Ref. 26543); 6.0 cm NG (female)
Short description
Bestämningsnycklar | Morfologi | Morfometri
Identified by the black spot found on the base of the dorsal fin; some specimens with thin transverse bands along the body but this may be attributed to the coloration before or after the reproductive period (Ref. 26543).
Feeds on algae and insects end up in the water (Ref. 26543). Tolerates extreme temperature, salinity and anoxia conditions (Ref. 26543). There was a proposal to use this species as biological control against mosquito larvae (Ref. 26543).
Life cycle and mating behavior
Maturities | Reproduktion | Spawnings | Egg(s) | Fecundities | Larver
Produces 10 to 25 young after a gestation period of about 28 days. Young cared for by the male (Ref. 26543).
Wischnath, L., 1993. Atlas of livebearers of the world. T.F.H. Publications, Inc., United States of America. 336 p. (Ref. 26130)
IUCN Red List Status (Ref. 130435)
Threat to humans
Harmless
Human uses
Verktyg
Special reports
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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=0.01318 (0.00562 - 0.03093), b=3.14 (2.96 - 3.32), in cm total length, based on LWR estimates for this Genus-body shape (Ref.
93245).
Trofisk nivå (Ref.
69278): 2.6 ±0.26 se; based on food items.
Resiliens (Ref.
120179): Hög, lägsta populationsfördubblingstid mindre än 15 månader (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
