Astyanax mexicanus, Mexican tetra : aquarium

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Astyanax mexicanus (De Filippi, 1853)

Mexican tetra
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Astyanax mexicanus
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Classification / Names Nombres comunes | Sinónimos | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

Actinopterígios (peces con aletas radiadas) > Characiformes (Characins) > Characidae (Characins) > Incertae sedis
Etymology: Astyanax: The name of Astyanax, Hector´s son in the Greek mithology (Ref. 45335);  mexicanus: Astanax (Greek)=son of Hector; mexicanus (Latin)=from Mexico (Ref. 79012).

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

; agua dulce bentopelgico; potamodromo (Ref. 47195).   Subtropical; 36°N - 24°N

Distribución Países | Áreas FAO | Ecosistemas | Ocurrencias, apariciones | Point map | Introducciones | Faunafri

North America: originally restricted to the Nueces, lower Rio Grande and the lower Pecos River drainages in Texas, USA; now established elsewhere in Texas (primarily streams on Edwards Plateau) and New Mexico, USA (throughout Pecos River system); also in eastern and central Mexico.

Tamaño / Peso / Age

Maturity: Lm ?  range ? - ? cm
Max length : 12.0 cm TL macho / no sexado; (Ref. 5723); common length : 7.5 cm TL macho / no sexado; (Ref. 12193)

Biología     Glosario (por ej. epibenthic)

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 Madurez | Reproducción | Puesta | Huevos | Fecundidad | Larva

Hides eggs in crevices.

Main reference Upload your references | Referencias | Coordinador | Colaboradores

Lima, F.C.T., L.R. Malabarba, P.A. Buckup, J.F. Pezzi da Silva, R.P. Vari, A. Harold, R. Benine, O.T. Oyakawa, C.S. Pavanelli, N.A. Menezes, C.A.S. Lucena, M.C.S.L. Malabarba, Z.M.S. Lucena, R.E. Reis, F. Langeani, C. Moreira et al. …, 2003. Genera Incertae Sedis in Characidae. p. 106-168. In R.E. Reis, S.O. Kullander and C.J. Ferraris, Jr. (eds.) Checklist of the Freshwater Fishes of South and Central America. Porto Alegre: EDIPUCRS, Brasil. (Ref. 38376)

IUCN Red List Status (Ref. 120744)

  Least Concern (LC) ; Date assessed: 08 September 2018

CITES (Ref. 118484)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless





Human uses

Pesquerías: sin inters; Acuario: Comercial
FAO(Publication : search) | FishSource |

Más información

Nombres comunes
Sinónimos
Metabolismo
Despredadores
Ecotoxicología
Reproducción
Madurez
Puesta
Agregación para la puesta
Fecundidad
Huevos
Egg development
Age/Size
Crecimiento
Length-weight
Length-length
Length-frequencies
Morfometría
Morfología
Larva
Dinámica larvaria
Reclutamiento
Abundancia
Referencias
Acuicultura
Perfil de acuicultura
Razas
Genética
Frecuencias de alelos
heritabilidad
Enfermedades
Procesamiento
Mass conversion
Colaboradores
Imágenes
Stamps, Coins Misc.
Sonidos
Ciguatera
Velocidad
Tipo de natación
Superficie branquial
Otolitos
Cerebros
Visión

Herramientas

Special reports

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Fuentes de Internet

Estimates based on models

Phylogenetic diversity index (Ref. 82805):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00977 (0.00600 - 0.01591), b=3.00 (2.86 - 3.14), in cm Total Length, based on LWR estimates for this species & Genus-body shape (Ref. 93245).
Nivel trófico (Ref. 69278):  3.2   ±0.38 se; Based on food items.
Generation time: 4.4 ( na - na) years. Estimated as median LN(3)/K based on 2 growth studies.
Resiliencia (Ref. 120179):  .
Vulnerability (Ref. 59153):  Low to moderate vulnerability (33 of 100) .