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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); orthodus: Name from latinized Greek ‘orthodon’, meaning ‘straight tooth’, referring to the straight posterior surface of the inner premaxillary teeth and the cusps, which was used to distinguish this species from A. bimaculatus..
More on author: Eigenmann.

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

; acqua dolce benthopelagico. Tropical; 24°C - 28°C (Ref. 36880)

Distribuzione Stati | Aree FAO | Ecosystems | Presenze | Point map | Introduzioni | Faunafri

South America: Colombia.

Size / Peso / Age

Maturity: L_m ? range ? - ? cm
Max length : 10.8 cm SL maschio/sesso non determinato; (Ref. 91755)

Short description Chiavi di identificazione | Morfologia | Morfometria

Predorsal midline with a continuous series of scales covering more than three quarters of the distance between the posterior tip of supraoccipital spine and dorsal-fin origin and the caudal-peduncle spot restricted to the midlateral axis of the body, not extending on to the dorsal and ventral margins of bases of caudal-fin rays (Ref. 119406).

Recorded in streams and ponds between 1 and 60 m elevation. Schools are found in waters ranging from stagnant to swift current at temperatures of 24 to 28°C. Feeds on seeds, terrestrial and aquatic insects (Ref. 36880).

Life cycle and mating behavior Maturities | Riproduzione | Spawnings | Egg(s) | Fecundities | Larve

Main reference Upload your references | Bibliografia | Coordinatore | Collaboratori

Ruiz-C., R.I., C. Román-Valencia, D.C. Taphorn, P.A. Buckup and H. Ortega, 2018. Revision of the Astyanax orthodus species-group (Teleostei: Characidae) with descriptions of three new species. European Journal of Taxonomy 402:1-45. (Ref. 119406)

IUCN Red List Status (Ref. 130435)

Least Concern (LC) ; Date assessed: 09 October 2014

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

FAO - Publication: search | FishSource |

Informazioni ulteriori

Trophic ecology
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Ecology
Ecologia

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Life cycle
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Genetica
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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=0.01738 (0.00782 - 0.03863), b=3.06 (2.89 - 3.23), in cm total length, based on LWR estimates for this Genus-body shape (Ref. 93245).

Trophic level (Ref. 69278): 2.9 ±0.37 se; based on food items.

Resilienza (Ref. 120179): Alto, tempo minimo di raddoppiamento della popolazione meno di 15 mesi (Preliminary K or Fecundity.).

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

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Astyanax orthodus Eigenmann, 1907