Environment: milieu / climate zone / intervalo de profundidade / distribution range
Ecologia
; Água doce; estuarina bentopelágico; pH range: 7.0 - 8.2; dH range: 10 - 40; não migratória. Tropical; 26°C - 28°C (Ref. 2060)
America: between Suriname and Brazil (not the Atlantic area South of the Laguna dos
Patos basin in Brazil); introduced to the Caribbean.
Tamanho / Peso / Idade
Maturidade: Lm ? range ? - ? cm
Max length : 7.8 cm TL macho/indeterminado; (Ref. 111953); common length : 3.8 cm SL macho/indeterminado; (Ref. 26728); peso máx. Publicado: 6.48 g (Ref. 111953)
Descrição breve
Chaves de identificação | Morfologia | Morfometria
Espinhos dorsais (total) : 0; Raios dorsais moles (total) : 6 - 8; Espinhos anais: 0; Raios anais moles: 7 - 9.
Body shape (shape guide): fusiform / normal.
Widespread in mildly brackish water in canals and drainage ditches at the edges of swamps, but rarely found in freshwater. Feeds on mosquito larvae and has at times been used for control in ponds and reservoirs (Ref. 35237).
Life cycle and mating behavior
Maturidade | Reprodução | Desova | Ovos | Fecundidade | Larvas
Males are very active and also approach the females of other Poecilinae. [Females produce 6 - 10 offspring which follow their mother for a few hours after birth, referring to Ref. 35237.] After 28 days gestation, female gives birth to 100 young or more. Sexual maturity is reached after 3-4 months (Ref. 2060).
Kenny, J.S., 1995. Views from the bridge: a memoir on the freshwater fishes of Trinidad. Julian S. Kenny, Maracas, St. Joseph, Trinidad and Tobago. 98 p. (Ref. 11225)
Categoria na Lista Vermelha da IUCN (Ref. 130435: Version 2025-1)
Ameaça para o homem
Harmless
Utilização humana
Pescarias: sem interesse
Ferramentas
Relatórios especiais
Descarregue XML
Fontes da 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=0.01349 (0.00984 - 0.01849), b=3.18 (3.12 - 3.24), in cm total length, based on LWR estimates for this species (Ref.
93245).
Nível Trófico (Ref.
69278): 2.3 ±0.1 se; based on diet studies.
Resiliência (Ref.
120179): Médio, tempo mínimo de duplicação da população 1,4 - 4,4 anos (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
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