分类 / Names
俗名 | 同种异名 | Catalog of Fishes(属, 种) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
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
生态学
; 淡水 底中水层性.
South America: Colombia.
大小 / 重量 / 年龄
Maturity: Lm ? range ? - ? cm
Max length : 7.8 cm SL (female)
简单描述
检索表 | 型态特徵 | 形态测量图
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
Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 仔鱼
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)
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = No PD50 data [Uniqueness, from 0.5 = low to 2.0 = high].
营养阶层 (Ref.
69278): 3.0 ±0.4 se; based on size and trophs of closest relatives
回复力 (Ref.
120179): 高度, 族群倍增时间少于 15个月 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
