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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); henseli: Named for R. Hensel, for his contributions to ichthyology in southern Brazil.

Environment / Climate / Range Ecology

Freshwater; pelagic. Tropical, preferred ?

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

South America: Southern Brazil.

Length at first maturity / Size / Weight / Age

Maturity: L_m 6.0, range 2 - 11.008 cm
Max length : 10.8 cm SL male/unsexed; (Ref. 56653)

Short description Morphology | Morphometrics

Dorsal soft rays (total): 10-11; Anal soft rays: 25 - 33. Diagnosis: Distinguished from its congeners except A. saguazu and A. elachylepis by the presence of a second vertically elongate humeral spot (vs. one humeral spot). It differs from saguazu, elachylepis, and fasciatus species complex by the autapomorphic presence of a space between the dentary teeth, which are relatively slender, with cusps positioned close to one another, and by the presence of a maximum of five cusps in each dentary tooth (vs. maximum of 7 cusps). Differs from fasciatus, rutilus, and elachylepis by the presence of 2 - 5, usually 5, tricuspid teeth on the anterior margin of maxilla (vs. 1 - 2 teeth, usually 1, on anterior margin of maxilla) (Ref. 56653).

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

Main reference Upload your references | References | Coordinator | Collaborators

de Melo, F.A.G. and P.A. Buckup, 2006. Astyanax henseli, a new name for Tetragonopterus aeneus Hensel, 1870 from southern Brazil (Teleostei: Characiformes). Neotrop. Ichthyol. 41(1):45-52. (Ref. 56653)

IUCN Red List Status (Ref. 109396)

Not Evaluated

CITES (Ref. 94142)

Not Evaluated

Threat to humans

Harmless

Human uses

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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=0.01230 (0.00551 - 0.02747), b=3.08 (2.89 - 3.27), based on LWR estimates for this (Sub)family-body shape (Ref. 93245).

Trophic Level (Ref. 69278): 2.7 ±0.3 se; Based on size and trophs of closest relatives

Resilience (Ref. 69278): .

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

Entered by Capuli, Estelita Emily

Modified by Capuli, Estelita Emily

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Astyanax henseli de Melo & Buckup, 2006