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Actinopterygii (ray-finned fishes) > Characiformes (Characins) > Characidae (Characins) > Incertae sedis
Etymology: Astyanax: The name of Astyanax, Hector´s son in the Greek mithology (Ref. 45335); pelecus: From the Greek pelekus, meaning axe, in allusion to the form of the dark pigmentation resulting from the junction of the humeral spot with the black midlateral stripe.

Environment / Climate / Range Ecology

Freshwater; benthopelagic; depth range 0 - 1 m (Ref. 57404). Tropical, preferred ?

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South America: Rio Pardo drainage in Bahia, Brazil.

Size / Weight / Age

Maturity: L_m ? range ? - ? cm
Max length : 6.0 cm SL male/unsexed; (Ref. 57404)

Short description Morphology | Morphometrics

Vertebrae: 35. Distinguished from its congeners by the following combination of characters: body depth 26.7-34.8% SL, short but pointed snout, that is smaller than the orbital diameter, and anal fin with 16-18 branches rays. Differs from other members of the genus in its distinctive color pattern: with only one humeral spot limited to the region above lateral line series, and has a conspicuous midlateral body stripe extending from the upper margin of opercle to the caudal-fin base, a putative autapomorphy of this species (Ref. 57404).

The type locality during dry season is about 10-20 m wide large river, with clear water, 0.1-1.0 m deep, alternating lentic stretches and rapids, with riparian vegetation including grasses and with bottom consisting of stones, rocks, sand and mud (Ref. 57404).

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

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Bertaco, V.A. and C.A.S. de Lucena, 2006. Two new species of Astyanax (Ostariophysi: Characiformes: Characidae) from eastern Brazil, with a synopsis of the Astyanax scabripinnis species complex. Neotrop. Ichthyol. 4(1):53-60. (Ref. 57404)

IUCN Red List Status (Ref. 109396)

Not Evaluated

CITES (Ref. 94142)

Not Evaluated

Threat to humans

Harmless

Human uses

FAO(Publication : search) | FisheriesWiki |

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Estimates of some properties based on models

Phylogenetic diversity index (Ref. 82805): PD₅₀ = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.01380 (0.00629 - 0.03027), b=3.03 (2.86 - 3.20), based on LWR estimates for this Genus-body shape (Ref. 93245).

Trophic Level (Ref. 69278): 2.8 ±0.3 se; Based on size and trophs of closest relatives

Resilience (Ref. 69278): .

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

Entered by Torres, Armi G.

Modified by Bailly, Nicolas

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Astyanax pelecus Bertaco & Lucena, 2006