Common names from other countries
Classification / Names
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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); brachypterygium: The name brachypterygium is from the Greek, brachys, short, and pterygium, fin, referring to the short anal fin. Noun in apposition..
Environment: milieu / climate zone / depth range / distribution range
Ekologi
; sötvatten bentopelagisk. High altitude
South America: Upper Uruguay and Jacuí River basins in Brazil.
Size / Vikt / Age
Maturity: Lm ?  range ? - ? cm
Max length : 6.4 cm SL hane/ej könsbestämd; (Ref. 116165)
Short description
Bestämningsnycklar | Morfologi | Morfometri
Taggstrålar i ryggfenan (totalt) : 2; Mjukstrålar i ryggfenan (totalt) : 9; Taggstrålar i analfenan: 0; Mjukstrålar i analfenan: 16 - 20; Ryggkotor: 34 - 36.
Life cycle and mating behavior
Maturities | Reproduktion | Spawnings | Egg(s) | Fecundities | Larver
Bertaco, V.A. and L.R. Malabarba, 2001. Description of two new species of Astyanax (Teleostei: Characidae) from headwater streams of Southern Brazil, with comments on the "A. scabripinnis species complex". Ichthyol. Explor. Freshwat. 12(3):221-234. (Ref. 41290)
IUCN Red List Status (Ref. 130435)
CITES (Ref. 128078)
Not Evaluated
Threat to humans
Harmless
Human uses
Verktyg
Special reports
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01148 (0.00526 - 0.02507), b=3.08 (2.91 - 3.25), in cm Total Length, based on LWR estimates for this Genus-body shape (Ref.
93245).
Trofisk nivå (Ref.
69278): 2.9 ±0.4 se; based on size and trophs of closest relatives
Resiliens (Ref.
120179): Hög, lägsta populationsfördubblingstid mindre än 15 månader (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).