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Teleostei (teleosts) > Cyprinodontiformes (Rivulines, killifishes and live bearers) > Poeciliidae (Poeciliids) > Poeciliinae
Etymology: Poecilia: Greek, poikilos = with a lot of colours (Ref. 45335).
More on author: Steindachner.

Environment: milieu / climate zone / depth range / distribution range Ecology

Freshwater; brackish; benthopelagic; pH range: 7.0 - 7.5; dH range: 20 - 30; non-migratory. Tropical; 22°C - 28°C (Ref. 12468); 19°N - 14°N

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

North and Central America: Rio San Juan, Mexico to Guatemala. At least one country reports adverse ecological impact after introduction.

Size / Weight / Age

Maturity: L_m ? range ? - ? cm
Max length : 11.0 cm SL male/unsexed; (Ref. 30499); common length : 4.0 cm TL male/unsexed; (Ref. 12193)

Occurs in warm springs and their effluents, canals and weedy ditches, and stream pools (Ref. 5723). Food is mainly detritus (Ref. 36880). Some populations in caves (Ref. 27297).

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

28 days after fertilization female gives birth to 30-80 young. Sexual maturity is reached after 7-12 months (Ref. 2060).

Main reference Upload your references | References | Coordinator | Collaborators

Proudlove, G.S., 1997. A synopsis of the hypogean fishes of the world. p. 351-354. In Proceedings of the 12th International Congress of Speleology, La Chaux de Fonds, Switzerland. vol. 3. (Ref. 27297)

IUCN Red List Status (Ref. 130435: Version 2024-1)

Least Concern (LC) ; Date assessed: 22 March 2018

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Potential pest (Ref. 1982)

Human uses

Fisheries: of no interest; aquarium: commercial; bait: occasionally

FAO - Publication: search | FishSource |

More information

Trophic ecology
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Ecology
Ecology

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Length-weight rel.
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Life cycle
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Anatomy
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Estimates based on models

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.01047 (0.00643 - 0.01705), b=3.11 (2.98 - 3.24), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245).

Trophic level (Ref. 69278): 2.0 ±0.00 se; based on food items.

Resilience (Ref. 120179): Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.).

Fishing Vulnerability (Ref. 59153): Low vulnerability (10 of 100).

Poecilia mexicana Steindachner, 1863