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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
Ecologia
; Água doce bentopelágico. Tropical
South America: Colombia.
Tamanho / Peso / Idade
Maturity: Lm ? range ? - ? cm
Max length : 7.8 cm SL (female)
Descrição suscinta
Chaves de identificação | Morfologia | Morfometria
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).
Ciclo de vida ou comportamento de acasalamento
Maturities | Reprodução | Spawnings | Egg(s) | Fecundities | Larvas
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 na Lista Vermelha da UICN (Ref. 130435)
Ameaça para os humanos
Harmless
Uso pelos humanos
Ferramentas
Relatórios especiais
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Fontes da internet
Estimates based on models
Índice de diversidade filogenética (Ref.
82804): PD
50 = No PD50 data [Uniqueness, from 0.5 = low to 2.0 = high].
Nível Trófico (Ref.
69278): 3.0 ±0.4 se; based on size and trophs of closest relatives
Resiliência (Ref.
120179): Elevada, tempo mínimo de duplicação da população menor que 15 meses (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
