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Characiformes (Characins) >
Acestrorhamphidae (American tetras) > Hyphessobryconinae
Etymology: Hyphessobrycon: Greek, hyphesson, -on, -on = a little smaller + Greek, bryko = to bite (Ref. 45335); nicolasi: Named for Nicolás Bonelli.
Eponymy: Nicolás Bonelli is the grandson of senior author Amalia Miquelarena. The etymology says: “This species is dedicated to Nicolás Bonelli, whose affection and company we have enjoyed for the last few years.” (Ref. 128868), visit book page.
Entorno: milieu / zona climática / rango de profundidad / gama de distribución
Ecología
; agua dulce bentopelágico. Subtropical
South America: known from the type locality El Pelado stream, tributary of Uruguay River in Entre Ríos Province, Argentina.
Tamaño / Peso / Edad
Madurez: Lm ?  range ? - ? cm
Max length : 5.1 cm SL macho / no sexado; (Ref. 83966)
Descripción breve
Claves de identificación | Morfología | Morfometría
Radios blandos dorsales (total) : 10 - 12; Radios blandos anales: 31 - 40; Vértebra: 32 - 36. Can be diagnosed from other members of the genus Hyphessobrycon by the possession of a well-defined, oblique and marginal black stripe on each lobe of the caudal fin. Differs further from its congeners by the combination of the following characters: maxilla with 1-3 teeth, bearing 3-10 cusps; outer premaxillary row with 2-3 small teeth, bearing 5 or 7 cusps; iv-v, 27-36 anal-fin rays; 33-36 scales on the longitudinal series; two vertically elongated dark humeral spots; black caudal spot rounded or fan-shaped; dorsal and anal fins with the first rays dappled in black; and presence of minute bony hooks on the dorsal, anal and caudal fins of the mature males (Ref. 83966).
Body shape (shape guide): short and / or deep.
Found in a stream with clear water and rocky/sandy bottom, with irregularly distributed small stones, cobbles and boulders and with shallower sectors with fast-running water up to 60 cm deep, and deeper portions with around 2 m depth and abundant submerged vegetation (Ref. 83966).
Ciclo vital y comportamiento de apareamiento
Madurez | Reproducción | Puesta | Huevos | Fecundidad | Larva
Miquelarena, A.M. and H.L. López, 2010. Hyphessobrycon nicolasi (Teleostei: Characidae) a new species from the Uruguay River basin in the Mesopotamian Region, Argentina. Neotrop. Ichthyol. 8(1):1-6. (Ref. 83966)
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=0.01995 (0.00906 - 0.04395), b=3.01 (2.83 - 3.19), in cm total length, based on all LWR estimates for this body shape (Ref. 93245). |
Nivel trófico (Referencia 69278) |
2.9 ±0.3 se; based on size and trophs of closest relatives |
Resiliencia (Referencia 120179) |
Alto, población duplicada en un tiempo mínimo inferior a 15 meses (Preliminary K or Fecundity.). |
Vulnerabilidad pesquera (Ref. 59153) |
Low vulnerability (11 of 100). 🛈 |