Environment: milieu / climate zone / depth range / distribution range
Ekologi
; sötvatten; brackvatten bentopelagisk. Tropical; 24°C - 30°C (Ref. 36880)
Central and South America: Atlantic and Caribbean coastal rivers.
Size / Vikt / Age
Maturity: Lm ?  range ? - ? cm
Max length : 16.0 cm SL hane/ej könsbestämd; (Ref. 79722)
Most specimens were collected from freshwater habitats, but there are some caught from estuaries and mangrove areas; while planktonic juveniles have been collected well offshore at sea. Ovoviviparous (Ref. 205). The male carries the eggs in a brood pouch which is found under the tail (Ref. 205). Brooding males present in collections from all months except November, December, February, and May (Ref. 30499).
Life cycle and mating behavior
Maturities | Reproduktion | Spawnings | Egg(s) | Fecundities | Larver
Male carries the eggs in a brood pouch (Ref. 205).
Greenfield, D.W. and J.E. Thomerson, 1997. Fishes of the continental waters of Belize. University Press of Florida, Florida. 311 p. (Ref. 30499)
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 = 0.6250 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00037 (0.00016 - 0.00085), b=3.18 (2.99 - 3.37), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trofisk nivå (Ref.
69278): 3.4 ±0.5 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).