Entorno: milieu / zona climática / rango de profundidad / gama de distribución
Ecología
; agua dulce; salobre bentopelágico; pH range: 7.0 - 8.2; dH range: 10 - 40; no migratorio (Ref. 126106). 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.
Tamaño / Peso / Edad
Madurez: Lm ?  range ? - ? cm
Max length : 7.8 cm TL macho / no sexado; (Ref. 111953); common length : 3.8 cm SL macho / no sexado; (Ref. 26728); peso máximo publicado: 6.48 g (Ref. 111953)
Descripción breve
Claves de identificación | Morfología | Morfometría
Espinas dorsales (total) : 0; Radios blandos dorsales (total) : 6 - 8; Espinas anales: 0; Radios blandos anales: 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. Adults feed on mosquito larvae and has at times been used for control in ponds and reservoirs (Ref. 35237).
Ciclo vital y comportamiento de apareamiento
Madurez | Reproducción | Puesta | Huevos | Fecundidad | Larva
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)
Situación en la Lista Roja de la UICN (Ref. 130435: Version 2025-2 (Global))
Amenaza para el ser humano
Harmless
Usos humanos
Pesquerías: sin interés
Herramientas
Informes especiales
Descargar XML
Fuentes de Internet
Estimaciones basadas en modelos
Índice de diversidad filogenética (Referencia 82804) |
PD50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high]. |
|
Bayesian length-weight
|
a=0.01349 (0.00974 - 0.01868), b=3.18 (3.12 - 3.24), in cm total length, based on LWR estimates for this species (Ref. 93245). |
Nivel trófico (Referencia 69278) |
2.3 ±0.1 se; based on diet studies. |
Resiliencia (Referencia 120179) |
Medio, población duplicada en un tiempo mínimo de 1.4-4.4 años (Preliminary K or Fecundity.). |
Vulnerabilidad pesquera (Ref. 59153) |
Low to moderate vulnerability (28 of 100). 🛈 |