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); microschemos: From the Greek mikroschemos, meaning low stature, in reference to the shallow body depth of the species..
Environment: milieu / climate zone / depth range / distribution range
Ecología
; agua dulce bentopelágico. Tropical
South America: Rio Itapemirim drainage in Espirito Santo State, Brazil.
Tamaño / Peso / Age
Maturity: Lm ?  range ? - ? cm
Max length : 5.5 cm SL macho / no sexado; (Ref. 57404)
Short description
Morfología | Morfometría
Vértebra: 35 - 36. A member of the Astyanax scabripinnis species complex that distinguishes from species outside this complex by having anal fin with 14-18 branched rays and body depth shallow (26.9-29.7% of SL). Differs from other species of the species complex by its shallow body depth (26.9-29.7% SL) and the smaller interorbital width (26.9-30.4% HL) (Ref. 57404).
The type locality is about 2 m wide brook with clear water, segments with rapids, riparian vegetation and a substrate of stones and rocks; associated with Characidium sp.,
Neoplecostomus sp. and Trichomycterus sp. (Ref. 57404).
Life cycle and mating behavior
Madurez | Reproducción | Puesta | Huevos | Fecundidad | Larva
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. 130435)
Threat to humans
Harmless
Human uses
Más información
Nombres comunesSinónimosMetabolismoDespredadoresEcotoxicologíaReproducciónMadurezPuestaAgregación para la puestaFecundidadHuevosEgg development
Age/SizeCrecimientoLength-weightLength-lengthLength-frequenciesMorfometríaMorfologíaLarvaDinámica larvariaReclutamientoAbundanciaBRUVS
ReferenciasAcuiculturaPerfil de acuiculturaRazasGenéticaElectrophoresesheritabilidadEnfermedadesProcesamientoNutrientsMass conversion
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Special reports
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Fuentes de Internet
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).
Nivel trófico (Ref.
69278): 2.9 ±0.4 se; based on size and trophs of closest relatives
Resiliencia (Ref.
120179): Alto, población duplicada en un tiempo mínimo inferior a 15 meses (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).