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Characiformes (Characins) >
Stevardiidae (Stevardiids) > Diapominae
Etymology: Bryconamericus: Greek, bryko = to bite + America, latinized (Ref. 45335).
Entorno: milieu / zona climática / rango de profundidad / gama de distribución
Ecología
; agua dulce bentopelágico; rango de profundidad 0 - 1 m (Ref. 55781). Subtropical
South America: Rio Uruguay basin in Argentina.
Tamaño / Peso / Edad
Madurez: Lm ?  range ? - ? cm
Max length : 9.0 cm SL macho / no sexado; (Ref. 128951)
Descripción breve
Claves de identificación | Morfología | Morfometría
Differs from other species of the genus by the following combination of characters: 17-21 branched anal fin rays, predorsal length (52.5-55.4% SL), preventral length (47.8-51.0% SL), preanal length (63.0-68.8% SL), caudal peduncle length (12.3-14.3% SL) and eye diameter (33.1-37.0% HL). Further differs by having seven to ten dentary teeth decreasing in size gradually, inner premaxillary teeth wider distally; one vertically elongated black humeral spot, separated from a second posterior one by 3 or 4 scales; narrow lateral band becoming wider below middle of dorsal fin base (Ref. 55781).
Occurs in rapids and small falls with clear flowing water, pools and some areas with slow current (Ref. 55781). The depth of the streams ranges from 0.40 to 1.3 m and the bottom is composed of sand and mostly stones (Ref. 55781).
Ciclo vital y comportamiento de apareamiento
Madurez | Reproducción | Puesta | Huevos | Fecundidad | Larva
Almirón, A.E., M. Azpelicueta and J.R. Casciotta, 2004. A new species of Bryconamericus from the arroyo Shangay, rio Uruguay basin, Argentina (Teleostei: Characiformes: Characidae). Zool. Abh. Staat. Mus. Tierk. Dresden 54:3-10. (Ref. 55781)
Situación en la Lista Roja de la UICN (Ref. 130435: Version 2025-2 (Global))
Amenaza para el ser humano
Harmless
Usos humanos
Herramientas
Informes especiales
Descargar XML
Fuentes de Internet
Estimaciones basadas en modelos
Índice de diversidad filogenética (Referencia 82804) |
PD50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.01072 (0.00565 - 0.02034), b=3.13 (2.97 - 3.29), in cm total length, based on LWR estimates for this species & Genus-body shape (Ref. 93245). |
Nivel trófico (Referencia 69278) |
2.6 ±0.3 se; based on size and trophs of closest relatives |
Vulnerabilidad pesquera (Ref. 59153) |
Low vulnerability (10 of 100). 🛈 |