Classification / Names
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Characiformes (Characins) >
Characidae (Characins; tetras) > Stevardiinae
Etymology: Bryconamericus: Greek, bryko = to bite + America, latinized (Ref. 45335); ecai: From the Tupi-Guarani eçai, meaning small eye, in allusion to the smaller eye diameter in comparison to other Bryconamericus species..
Environment: milieu / climate zone / depth range / distribution range
Ecología
; agua dulce bentopelágico. Subtropical
South America: Laguna dos Patos drainage in Rio Grande do Sul, Brazil.
Tamaño / Peso / Age
Maturity: Lm ?  range ? - ? cm
Max length : 7.5 cm SL macho / no sexado; (Ref. 54750)
Short description
Morfología | Morfometría
Distinguished from other species of Bryconamericus by the combination of the following characters: body depth 33.1-36.9% SL, mean 34.9; eye diameter 31.1-33.9% HL, mean 32.3; snout length 26.8-32.4% HL, mean 29.6; branched anal-fin rays 15-18; teeth of inner row of premaxilla tricuspid or pentacuspid; teeth compressed distally; and males with bony hooks on pelvic and anal fins (Ref. 54750).
Occurs in a creek with clear to turbid water, light to moderate water current and bottom with stones and sand (Ref. 54750).
Life cycle and mating behavior
Madurez | Reproducción | Puesta | Huevos | Fecundidad | Larva
da Silva, J.F.P., 2004. Two new species of Bryconamericus Eigenmann (Characiformes: Characidae) from southern Brazil. Neotrop. Ichthyol. 2(2):55-60. (Ref. 54750)
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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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=0.01000 (0.00244 - 0.04107), b=3.04 (2.81 - 3.27), in cm total length, based on all LWR estimates for this body shape (Ref.
93245).
Nivel trófico (Ref.
69278): 2.6 ±0.3 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).