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> Characiformes (Characins) > Characidae (Characins; tetras) > Stevardiinae
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).

Environment: milieu / climate zone / depth range / distribution range Ökologie

; süßwasser benthopelagisch. Tropical

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South America: Colombia.

Size / Gewicht / Alter

Maturity: L_m ? range ? - ? cm
Max length : 7.8 cm SL (female)

Kurzbeschreibung Morphologie | Morphometrie

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).

Life cycle and mating behavior Geschlechtsreife | Fortpflanzung | Ablaichen | Eier | Fecundity | Larven

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Roman-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)

IUCN Rote Liste Status (Ref. 130435)

nicht bedroht (LC) ; Date assessed: 12 November 2020

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Bedrohung für Menschen

Harmless

Nutzung durch Menschen

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Estimates based on models

Phylogenetic diversity index (Ref. 82804): PD₅₀ = No PD50 data [Uniqueness, from 0.5 = low to 2.0 = high].

Trophic level (Ref. 69278): 3.0 ±0.4 se; based on size and trophs of closest relatives

Widerstandsfähigkeit (Ref. 120179): hoch, Verdopplung der Population dauert weniger als 15 Monate. (Preliminary K or Fecundity.).

Fishing Vulnerability (Ref. 59153): Low vulnerability (10 of 100).

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Hemibrycon guejarensis Román-Valencia, Ruiz-C. & Taphorn, 2018