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Characiformes (Characins) >
Acestrorhamphidae (American tetras) > Acestrorhamphinae
Etymology: Astyanax: The name of Astyanax, Hector´s son in the Greek mythology (Ref. 45335); salvatoris: Named for the late Dr. Salvador Contreras-Balderas, one of the greatest students of Mexican fishes in general, and of Astyanax in particular. An adjective.
Eponymy: Astyanax was the son of Hector in Greek mythology. See Homer’s Iliad for details. The reasoning for its use for a genus of characins is not explained. (Ref. 128868), visit book page.
Meio ambiente: milieu / Zona climática / intervalo de profundidade / faixa de distribuição
Ecologia
; Água doce bentopelágico. Tropical
Central America: endemic to springs at Tamazulapan, Oaxaca, Balsas drainage, Pacific versant of Mexico.
Tamanho / Peso / Idade
Maturidade: Lm ?  range ? - ? cm
Max length : 6.1 cm SL macho/indeterminado; (Ref. 118583)
Descrição suscinta
Chaves de identificação | Morfologia | Morfometria
Raios dorsais (total) : 9; Raios anais : 20 - 22; Vértebras: 32 - 33. Astyanax salvatoris is distinguished from other congeners in Oaxaca by following characters: anal-fin rays 20-22 (vs. 21-26); total gill rakers, mean 17 (vs. mean 22 or more in A. finitimus); anterior fontanel sharp-tipped (vs. blunt), long (vs. shorter in A. finitimus); in dorsal view, supraoccipital short, wide-based (vs. long, narrow-based in A. aeneus); 4 maxillary teeth, 2 larger followed by 2 smaller (vs. 1-3, all about same size); epibranchial III distal segment straight (vs. curved in A. finitimus); preopercular ventral rim, convex (vs. straight in A. aeneus); and predorsal elements irregularly expanded (Ref. 118583).
Body shape (shape guide): fusiform / normal.
Ciclo de vida ou comportamento de acasalamento
Maturidade | Reprodução | Desova | Ovos | Fecundidade | Larvas
Schmitter-Soto, J.J., 2017. A revision of Astyanax (Characiformes: Characidae) in Central and North America, with the description of nine new species. J. Nat. Hist. 51(23/24):1-94. (Ref. 118583)
Status na Lista Vermelha da UICN (Ref. 130435: Version 2025-2 (Global))
Ameaça para os humanos
Harmless
Uso pelos humanos
Ferramentas
Relatórios especiais
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Fontes da internet
Estimativas baseadas em modelos
Índice de diversidade filogenética (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01047 (0.00452 - 0.02424), b=3.11 (2.93 - 3.29), in cm total length, based on LWR estimates for this Genus-body shape (Ref.
93245).
Nível Trófico (Ref.
69278): 3.0 ±0.4 se; based on size and trophs of closest relatives
Resiliência (Ref.
120179): Elevada, tempo mínimo de duplicação da população menor que 15 meses (Preliminary K or Fecundity.).
Vulnerabilidade da pesca (Ref.
59153): Low vulnerability (10 of 100).
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