Environment: milieu / climate zone / depth range / distribution range
Ekologi
; sötvatten; brackvatten bentopelagisk; pH range: 7.0 - 7.5; dH range: 5 - 10; ej vandrande. Tropical; 24°C - 28°C (Ref. 2059)
South America: Guyana to the Amazon River delta.
Size / Vikt / Age
Maturity: Lm ? range ? - ? cm
Max length : 3.0 cm TL hane/ej könsbestämd; (Ref. 26130); 5.0 cm (female)
In fresh and brackish waters of estuaries. Occurs in small swamps and shallow slow-flowing creeks located inland where the water is really fresh, along riverine vegetation with clear water and sandy-muddy substrate. Three color forms of males are recognized, the frequency of which may depend upon predation pressure (Ref. 35237).
Life cycle and mating behavior
Maturities | Reproduktion | Spawnings | Egg(s) | Fecundities | Larver
Produces 5 to 15 young after about 24 days of gestation.
Lucinda, P.H.F., 2003. Poeciliidae (Livebearers). p. 555-581. 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, Brazil. (Ref. 50894)
IUCN Red List Status (Ref. 130435)
Threat to humans
Harmless
Human uses
Fiskeri: saknar intresse
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 ±0.3 se; based on size and trophs of closest relatives
Resiliens (Ref.
120179): Hög, lägsta populationsfördubblingstid mindre än 15 månader (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
