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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); vinaceus: From the Latin vinaceus (reddish), in allusion to the body coloration red or reddish observed in live specimens.
Ambiente: milieu / zona climatica / distribuzione batimetrica / gamma di distribuzione
Ecologia
; acqua dolce benthopelagico. Tropical
South America: known only from rio São João of the rio Pardo drainage in Brazil.
Dimensione / Peso / Età
Maturità: Lm ?  range ? - ? cm
Max length : 6.3 cm SL maschio/sesso non determinato; (Ref. 75059)
Breve descrizione
Chiavi di identificazione | Morfologia | Morfometria
Raggi dorsali molli (totale) : 11; Vertebre: 32 - 33. Diagnosed from all congeners, except Hyphessobrycon melanostichos, Hyphessobrycon notidanos and the species of the rosy tetra clade by the red or reddish pigmented body in live specimens. Distinguished from the species included in the rosy tetra clade in the number of teeth in the inner row of the premaxilla (4 or 5 vs. 7 to 12), and in the number of branched anal-fin rays (15-17 vs. 22-29); differs from Hyphessobrycon melanostichos by the absence of a conspicuous longitudinal broad black band beginning on the posterior margin of orbit and reaching the tip of middle caudal fin rays; from Hyphessobrycon notidanos by the lack of an elongated dorsal fin in mature males, in the number of dorsal-fin rays (ii,9 vs. iii,8), and number of perforated lateral-line scales (10-26 vs. 6-9) (Ref. 75059).
Body shape (shape guide): short and / or deep; Cross section: compressed.
The type locality, rio São João, is a fast running clear water and shallow river about 4-5 meters wide, with sandy bottom and large amount of riparian vegetation. Collected in rapid stretches just below a small waterfall (Ref. 75059).
Ciclo vitale e comportamento di accoppiamento
Maturità | Riproduzione | Deposizione | Uova | Fecondità | Larve
Bertaco, V.A., L.R. Malabarba and J.A. Dergam, 2007. New Hyphessobrycon from the upper Rio Pardo drainage in eastern Brazil (Teleostei: Characiformes: Characidae). Neotrop. Ichthyol. 5(3):245-249. (Ref. 75059)
Stato della Lista Rossa IUCN (Ref. 130435: Version 2025-2 (Global))
Minaccia per l'uomo
Harmless
Usi umani
Pesca: di nessun interesse
Strumenti
Rapporti speciali
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Fonti Internet
Stime basate su modelli
Indice di diversità filogenetica (Fonte Biblio. 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). |
Livello trofico (Fonte Biblio. 69278) |
2.9 ±0.3 se; based on size and trophs of closest relatives |
Resilienza (Fonte Biblio. 120179) |
Alto, tempo minimo di raddoppiamento della popolazione meno di 15 mesi (Preliminary K or Fecundity.). |
Vulnerabilità della pesca (Ref. 59153) |
Low vulnerability (13 of 100). 🛈 |