Klassificering / Namn
Populärnamn | synonymer | Catalog of Fishes(Släkte, Arter) | ITIS | CoL | WoRMS | Cloffa
>
Characiformes (Characins) >
Stevardiidae (Stevardiids) > Hemibryconinae
Etymology: Hemibrycon: Greek, hemi = half + Greek, bryko = to bite (Ref. 45335); guejarensis: Name refers to the Guejar River Basin in Meta Department, Serrania de La Macarena, Colombia , where the type series was collected (Ref. 128867).
Miljö: miljö / Klimatzon / djupintervall / distributionsområde
Ekologi
; sötvatten bentopelagisk. Tropical
South America: Colombia.
Storlek / Vikt / Ålder
Könsmognad: Lm ? range ? - ? cm
Max length : 7.8 cm SL (female)
Kort beskrivning
Bestämningsnycklar | Morfologi | Morfometri
This species can be distinguished from most cis-Andean congeners (H. jabonero from Lake Maracaibo and adjacent Caribbean drainages, H. taeniurus from Trinidad and adjacent mainland drainages in Venezuela, and H. metae which is found in the Guavio River, some Orinoco and Caribbean River drainages in Venezuela) in having ii, 7, i dorsal-fin rays (vs. ii, 8).
H. guejarensis differs from H. jabonero and H. taeniurus, in having a wider second pigment layer in the humeral spot (covering 3 vs. 2 scale widths). It is further distinguished from H. metae in having the tip of the pectoral fin passing the pelvic-fin insertions (vs. pectoral fin tip not reaching pelvic-fin insertions) (Ref. 128867).
Collected along shore over sandy substrates in tributaries with flow, water is tea colored. This species is found syntopic with Astyanax n. sp. (bimaculatus group), Bryconamericus macarenae, Creagrutus maculosus, Characidium cf. zebra and Hemigrammus barrigonae (Ref. 128867).
Livscykel och parningsbeteende
Könsmognad | Reproduktion | Lek | Ägg | Fekunditet | Larver
Román-Valencia, C., R.I. Ruiz-C and Taphorn B.D.C., 2017. Hemibrycon guejarensis, a new species from the Guejar River, Orinoco Basin, Colombia (Characiformes: Characidae) with a review the populations identified as Hemibrycon metae. Revista de Investigaciones de la Universidad del Quindío 29:38-52. (Ref. 128867)
Status på IUCN:s rödlista (Ref. 130435: Version 2025-2 (Global))
Hot mot människor
Harmless
Mänskliga användningsområden
Verktyg
Särskilda rapporter
Ladda ner XML
Internet-källor
Uppskattningar baserade på modeller
Index för fylogenetisk mångfald (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01122 (0.00514 - 0.02450), b=3.04 (2.87 - 3.21), in cm total length, based on all LWR estimates for this body shape (Ref.
93245).
Trofisk nivå (Ref.
69278): 3.0 ±0.4 se; based on size and trophs of closest relatives
Sårbarhet i fisket (Ref.
59153): Low vulnerability (10 of 100).
🛈
