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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.
Environment: milieu / Zona climática / intervalo de profundidade / distribution range
Ecologia
; Água doce; estuarina demersal; pH range: 6.0 - 8.0; dH range: 9 - 19; não migratória. 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).
Tamanho / Peso / Idade
Maturidade: Lm ? range ? - ? cm
Max length : 20.0 cm TL macho/indeterminado; (Ref. 50894); 15.0 cm TL (female); common length : 9.7 cm TL macho/indeterminado; (Ref. 12193)
Descrição suscinta
Chaves de identificação | Morfologia | Morfometria
Slender, elongate fish with elongate jaws forming a prominent pointed beak. Scales very small and numerous (Ref. 26938).
Body shape (shape guide): elongated.
Occurs 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 de vida ou comportamento de acasalamento
Maturidade | Reprodução | Desova | Ovos | Fecundidade | Larvas
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)
Status na Lista Vermelha da UICN (Ref. 130435: Version 2025-1)
Ameaça para os humanos
Harmless
Uso pelos humanos
Pescarias: espécies comerciais; Aquário: Espécies comerciais
Ferramentas
Relatórios especiais
Baixar XML
Fontes da internet
Estimates based on models
Índice de diversidade filogenética (Ref.
82804): PD
50 = 1.0000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00851 (0.00433 - 0.01675), b=3.15 (2.98 - 3.32), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245).
Nível Trófico (Ref.
69278): 2.9 ±0.4 se; based on size and trophs of closest relatives
Resiliência (Ref.
120179): médio(a), tempo mínimo de duplicação da população 1,4 - 4,4 anos (Fec=100).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
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