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Cyprinodontiformes (Rivulines, killifishes and live bearers) >
Poeciliidae (Poeciliids) > Poeciliinae
Etymology: Belonesox: Greek, belone = needle; any fish with sharp pointed snout + Esox, the old name for pike (Ref. 45335).
More on author: Kner.
Entorno: milieu / zona climática / rango de profundidad / gama de distribución
Ecología
; agua dulce; salobre demersal; pH range: 6.0 - 8.0; dH range: 9 - 19; no migratorio (Ref. 126106). Tropical; 25°C - 37°C (Ref. 36880); 29°N - 11°N, 100°W - 79°W (Ref. 55262)
North and Central America: Laguna San Julian, northeast of Ciudad Veracruz in Mexico to Costa Rica. Southern Gulf of Mexico, southern Yucatan and along Central American coast south to Nicaragua (Ref. 26938). Introduced in freshwater in Florida (Ref. 26938).
Tamaño / Peso / Edad
Madurez: Lm ?  range ? - ? cm
Max length : 20.0 cm TL macho / no sexado; (Ref. 50894); 15.0 cm TL (female); common length : 9.7 cm TL macho / no sexado; (Ref. 12193)
Descripción breve
Claves de identificación | Morfología | Morfometría
Slender, elongate fish with elongate jaws forming a prominent pointed beak. Scales very small and numerous (Ref. 26938).
Body shape (shape guide): elongated.
Adults occur in weedy canals and tolerates poorly oxygenated waters and salinity to 40 ppt. Occurrence in saline (34-37 ppt.) water in Florida seems to be a case of local acclimatization. Formerly used in medical research. Total length 14 cm (Ref. 26938). Mostly freshwater, sometimes brackish (Ref. 26938). Piscivore (Ref. 79012).
Ciclo vital y comportamiento de apareamiento
Madurez | Reproducción | Puesta | Huevos | Fecundidad | Larva
Produces up to 100 eggs.
Page, L.M. and B.M. Burr, 1991. A field guide to freshwater fishes of North America north of Mexico. Houghton Mifflin Company, Boston. 432 p. (Ref. 5723)
Situación en la Lista Roja de la UICN (Ref. 130435: Version 2025-2 (Global))
Amenaza para el ser humano
Harmless
Usos humanos
Pesquerías: comercial; Acuario: Comercial
Herramientas
Informes especiales
Descargar XML
Fuentes de Internet
Estimaciones basadas en modelos
Índice de diversidad filogenética (Referencia 82804) |
PD50 = 1.0000 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.00832 (0.00423 - 0.01637), b=3.16 (2.99 - 3.33), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245). |
Nivel trófico (Referencia 69278) |
2.9 ±0.4 se; based on size and trophs of closest relatives |
Resiliencia (Referencia 120179) |
Medio, población duplicada en un tiempo mínimo de 1.4-4.4 años (Fec=100). |
Vulnerabilidad pesquera (Ref. 59153) |
Moderate vulnerability (38 of 100). 🛈 |
Categoría de precios (Ref. 80766) |
Unknown.
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