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> Characiformes (Characins) > Characidae (Characins; tetras) > Stethaprioninae
Etymology: Astyanax: The name of Astyanax, Hector´s son in the Greek mythology (Ref. 45335); ocotal: Named for the type locality, Laguna Ocotal. A noun in apposition.
Eponymy: Astyanax was the son of Hector in Greek mythology. See Homer’s Iliad for details. The reasoning for its use for a genus of characins is not explained. (Ref. 128868), visit book page.

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

; süßwasser benthopelagisch. Tropical

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Central America: Lakes Ocotal and Metzabok, and Río Tulijá in northern Chiapas, Mexico.

Size / Gewicht / Alter

Maturity: L_m ? range ? - ? cm
Max length : 10.5 cm SL Männchen/unbestimmt; (Ref. 118583)

Kurzbeschreibung Bestimmungsschlüssel | Morphologie | Morphometrie

Rückenflossenweichstrahlen (insgesamt) : 9; Afterflossenweichstrahlen: 22 - 24; Wirbelzahl: 31. Astyanax ocotal is distinguished from other congeners in the region by the following characters: head length, 29-33% SL (vs. 22- 28% in A. angustifrons and A. finitimus, to 30% in A. aeneus); anal-fin base length, 26% SL or less (vs. 26% or more in A. aeneus and A. finitimus); lower-limb gill rakers in first arch, 15-16 (vs. 14 or fewer in A. angustifrons and A. finitimus); urohyal, ventral apex closer to caudal end (vs. about equidistant between rostral and caudal ends in A. finitimus); epibranchial III, distal segment straight (vs. curved in A. finitimus); preopercle with divergent canals at angle (vs. canals parallel in A. angustifrons); coracoid with 4-5 interdigitations in suture to cleithrum (vs. 2-3 in A. angustifrons) (Ref. 118583).

Life cycle and mating behavior Geschlechtsreife | Fortpflanzung | Ablaichen | Eier | Fecundity | Larven

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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 Rote Liste Status (Ref. 130435: Version 2024-2)

Gefährdung zunehmend (NT) (B1a+2a); Date assessed: 05 February 2019

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Bedrohung für Menschen

Harmless

Nutzung durch Menschen

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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=0.01096 (0.00493 - 0.02437), b=3.10 (2.93 - 3.27), in cm total length, based on LWR estimates for this Genus-body shape (Ref. 93245).

Trophic level (Ref. 69278): 2.8 ±0.4 se; based on size and trophs of closest relatives

Widerstandsfähigkeit (Ref. 120179): hoch, Verdopplung der Population dauert weniger als 15 Monate. (Preliminary K or Fecundity.).

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

Astyanax ocotal Valdez-Moreno, Rodiles-Hernández & Schmitter-Soto, 2017