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Actinopteri (ray-finned fishes) > Characiformes (Characins) > Characidae (Characins; tetras) > Stethaprioninae
Etymology: Astyanax: The name of Astyanax, Hector´s son in the Greek mythology (Ref. 45335); mexicanus: Astanax (Greek)=son of Hector; mexicanus (Latin)=from Mexico (Ref. 79012).

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

Freshwater; benthopelagic; potamodromous (Ref. 47195). Subtropical; 36°N - 24°N

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

North America: Mexico.

Size / Weight / Age

Maturity: L_m ? range ? - ? cm
Max length : 12.0 cm TL male/unsexed; (Ref. 5723); common length : 7.5 cm TL male/unsexed; (Ref. 12193)

Inhabits rocky and sandy bottoms of pools and backwaters of creeks and small to large rivers, and springs. Feeds on insects, crustaceans and worms (Ref. 7020). Migrates during winter to warmer areas (Ref. 47195).

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

Hides eggs in crevices.

Main reference Upload your references | References | Coordinator | Collaborators

Schmitter-Soto, J.J., 2017. A revision of Astyanax (Characiformes: Characidae) in Central and North America, with the description of nine new species. J. Nat. Hist. 51(23/24):1-94. (Ref. 118583)

IUCN Red List Status (Ref. 125652)

Least Concern (LC) ; Date assessed: 21 October 2011

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

Fisheries: of no interest; aquarium: commercial

FAO - Publication: search | FishSource |

More information

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Common names
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Age/Size
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Internet sources

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=0.00871 (0.00525 - 0.01444), b=3.04 (2.90 - 3.18), in cm total length, based on LWR estimates for this species & Genus-body shape (Ref. 93245).

Trophic level (Ref. 69278): 3.2 ±0.38 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 to moderate vulnerability (33 of 100).

Astyanax mexicanus (De Filippi, 1853)