Classification / Names
Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa
Actinopteri (ray-finned fishes) > Cyprinodontiformes
(Rivulines, killifishes and live bearers) > Poeciliidae
(Poeciliids) > Poeciliinae
Etymology: Gambusia: Gambusia: From the Cuban term, Gambusino, which means "nothing", usually in the context of a joke or a farce. Fishing for gambusinos = when one catches nothing (Ref. 45335). More on author: Poey.
Environment: milieu / climate zone / depth range / distribution range
Freshwater; benthopelagic; pH range: 7.2 - 8.2; dH range: 10 - ?; non-migratory. Tropical; 24°C - 28°C (Ref. 13614)
Central America: Cuba. Reported to reach southern Florida from Cuba by crossing the Gulf Stream (Ref. 27148).
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 4.8 cm SL male/unsexed; (Ref. 13498); 7.0 cm SL (female)
Inhabits freshwater ponds, lakes and streams. Prefers stagnant or slow-flowing streams, although may occur in mountain streams at elevation up to 600 m. Usually found in schools close to the shore. Carnivorous surface feeder.
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Lee, D.S., S.P. Platania and G.H. Burgess, 1983. Atlas of North American freshwater fishes, 1983 supplement. Occasional Papers of the North Carolina Biological Survey no. 1983-6. North Carolina State Museum of Natural History, Raleigh, N.C. 67 p. (Ref. 13498)
IUCN Red List Status (Ref. 123251)
CITES (Ref. 123416)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates based on models
Phylogenetic diversity index (Ref. 82805
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01000 (0.00444 - 0.02253), b=3.11 (2.92 - 3.30), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245
Trophic level (Ref. 69278
): 3.3 ±0.4 se; based on size and trophs of closest relatives
Resilience (Ref. 120179
): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153
): Low to moderate vulnerability (26 of 100) .