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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.
Miljö: miljö / Klimatzon / djupintervall / distributionsområde
Ekologi
; sötvatten bentopelagisk. Tropical
South America: known only from rio São João of the rio Pardo drainage in Brazil.
Storlek / Vikt / Ålder
Könsmognad: Lm ?  range ? - ? cm
Max length : 6.3 cm SL hane/ej könsbestämd; (Ref. 75059)
Kort beskrivning
Bestämningsnycklar | Morfologi | Morfometri
Mjukstrålar i ryggfenan (totalt) : 11; Ryggkotor: 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).
Livscykel och parningsbeteende
Könsmognad | Reproduktion | Lek | Ägg | Fekunditet | Larver
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)
Status på IUCN:s rödlista (Ref. 130435: Version 2025-2 (Global))
Hot mot människor
Harmless
Mänskliga användningsområden
Fiskeri: saknar intresse
Verktyg
Särskilda rapporter
Ladda ner XML
Internet-källor
Uppskattningar baserade på modeller
Index för fylogenetisk mångfald (Ref. 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). |
Trofisk nivå (Ref. 69278) |
2.9 ±0.3 se; based on size and trophs of closest relatives |
Resiliens (Ref. 120179) |
Hög, lägsta populationsfördubblingstid mindre än 15 månader (Preliminary K or Fecundity.). |
Sårbarhet i fisket (Ref. 59153) |
Low vulnerability (13 of 100). 🛈 |