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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 / climate zone / depth range / distribution range
Ekologi
; sötvatten; brackvatten bottenlevande; pH range: 6.0 - 8.0; dH range: 9 - 19; ej vandrande. 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).
Size / Vikt / Age
Maturity: Lm ?  range ? - ? cm
Max length : 20.0 cm TL hane/ej könsbestämd; (Ref. 50894); 15.0 cm TL (female); common length : 9.7 cm TL hane/ej könsbestämd; (Ref. 12193)
Short description
Bestämningsnycklar | Morfologi | Morfometri
Slender, elongate fish with elongate jaws forming a prominent pointed beak. Scales very small and numerous (Ref. 26938).
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).
Life cycle and mating behavior
Maturities | Reproduktion | Spawnings | Egg(s) | Fecundities | Larver
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)
IUCN Red List Status (Ref. 130435)
Threat to humans
Harmless
Human uses
Fiskeri: kommersiell; Akvarium: Kommersiell
Verktyg
Special reports
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 1.0000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00813 (0.00415 - 0.01592), b=3.16 (2.99 - 3.33), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245).
Trofisk nivå (Ref.
69278): 2.9 ±0.4 se; based on size and trophs of closest relatives
Resiliens (Ref.
120179): Mellan, lägsta populationsfördubblingstid 1,4-4,4 år (Fec=100).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).