Brazil country information

Common names: [No common name]
Occurrence: native
Salinity: freshwater
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: live export: yes;
Comments: Known only from upper Iguaçu basin, found mostly in localities situated upstream of confluence with Rio Jordão. Type locality, Rio Iguaçu downstream of Salto Santiago dam, between Laranjeiras do Sul and Chopinzinho, Laranjeiras do Sul, Paraná, MZUSP 105954 (holotype of Astyanax longirhinus, 15.69 cm SL) (Ref. 85756).
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/br.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Garavello, J.C.I. and F.A.A. Sampaio, 2010
National Database:

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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); minor: Name from Latin 'minor' meaning small; in allusion to small body size of this species, when compared with remaining species of Astyanax from Iguaçu basin..

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

; zoet water benthopelagisch. Tropical

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South America: known only from upper Iguaçu basin in Brazil.

Grootte / Gewicht / Leeftijd

Maturity: L_m ? range ? - ? cm
Max length : 10.8 cm SL mannelijk / geslacht onbekend; (Ref. 85756)

Korte beschrijving Determinatiesleutels | Morfologie | Morfometrie

Dorsale zachte stralen (totaal) : 8 - 10; Anale zachte stralen: 16 - 23. This species is distinguished from all its congeners from Rio Iguaçu by the following set of characters: third infraorbital deep and not in contact with preopercle, leaving an narrow naked area between its border and preopercle; premaxillary external series with 4-6, usually 5 or 6 pentacuspid or heptacuspid teeth; first branchial arch 9-12, usually 10 rakers in upper branch and 13-16, usually 14 or 15 rakers in lower branch; a narrow and elongated vertical humeral bar (Ref. 85756).

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Garavello, J.C.I. and F.A.A. Sampaio, 2010. Five new species of genus Astyanax Baird & Girard, 1854 from Rio Iguaçu, Paraná, Brazil (Ostariophysi, Characiformes, Characidae). Brazilian Journal of Biology 70(3):847-865. (Ref. 85756)

Status op de Rode Lijst van het IUCN (Ref. 130435)

Niet bedreigd (LC) ; Date assessed: 07 November 2018

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Gevaar voor de mens

Harmless

Gebruik door de mens

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Estimates based on models

Fylogenetische diversiteitsindex (Ref. 82804): PD₅₀ = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.01698 (0.01048 - 0.02752), b=3.06 (2.93 - 3.19), in cm Total Length, based on LWR estimates for this species & Genus-body shape (Ref. 93245).

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

Weerstandsvermogen (Ref. 120179): Hoog, minimale populatieverdubbelingstijd minder dan 15 maanden (Preliminary K or Fecundity.).

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

Astyanax minor Garavello & Sampaio, 2010