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Belonesox belizanus  Kner, 1860

Top minnow
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Belonesox belizanus   AquaMaps   Data sources: GBIF OBIS
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Image of Belonesox belizanus (Top minnow)
Belonesox belizanus
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Classification / Names Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

Actinopterygii (ray-finned fishes) > 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 / Climate / Range Ecology

Freshwater; brackish; demersal; pH range: 6.0 - 8.0; dH range: 9 - 19; non-migratory.   Tropical; 25°C - 37°C (Ref. 36880); 29°N - 11°N, 100°W - 79°W (Ref. 55262)

Size / Weight / Age

Maturity: Lm ?  range ? - ? cm
Max length : 20.0 cm TL male/unsexed; (Ref. 50894); 15.0 cm TL (female); common length : 9.6 cm TL male/unsexed; (Ref. 12193)

Short description Morphology | Morphometrics

Slender, elongate fish with elongate jaws forming a prominent pointed beak. Scales very small and numerous (Ref. 26938).

Distribution Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri

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).

Biology     Glossary (e.g. epibenthic)

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 Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Produces up to 100 eggs.

Main reference Upload your references | References | Coordinator | Collaborators

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. 96402)

CITES (Ref. 94142)

Not Evaluated

Threat to humans

  Harmless




Human uses

Aquarium: commercial
FAO(Publication : search) | FisheriesWiki | Sea Around Us

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Estimates of some properties based on models

Phylogenetic diversity index (Ref. 82805):  PD50 = 1.0000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00309 (0.00123 - 0.00779), b=3.09 (2.87 - 3.31), based on LWR estimates for this Subfamily-body shape (Ref. 93245).
Trophic Level (Ref. 69278):  2.9   ±0.4 se; Based on size and trophs of closest relatives
Resilience (Ref. 69278):  Medium, minimum population doubling time 1.4 - 4.4 years (Fec=100).
Vulnerability (Ref. 59153):  Moderate vulnerability (35 of 100) .