分類 / 名稱
俗名 | 同種異名 | Catalog of Fishes(屬, 種) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Characiformes (Characins) >
Stevardiidae (Stevardiids) > Hemibryconinae
Etymology: Hemibrycon: Greek, hemi = half + Greek, bryko = to bite (Ref. 45335); raqueliae: Named for the biologist Raquel Ivveth Ruiz Calderón, in recognition for her generous contribution of works for the preservation and study of Neotropical fishes.
Eponymy: Raquel Ivveth Ruiz Calderón is a Colombian biologist. [...] (Ref. 128868), visit book page.
環境: 環境 / 氣候帶 / 深度上下限 / 配送範圍
生態學
; 淡水 底中水層性. ? - 22°C (Ref. 83529)
South America: Río La Miel basin, middle Río Magdalena in Colombia.
大小 / 重量 / 年齡
成熟度: Lm ?  range ? - ? cm
Max length : 9.9 cm SL 雄魚/尚未辨別雌雄; (Ref. 83529)
簡短描述
檢索表 | 型態特徵 | 形態測量圖
脊椎骨: 42 - 43. Diagnosed from other species of Hemibrycon by possessing the following characters: a widened first tooth on the maxilla with the remaining teeth decreasing sharply in size; the first maxilla tooth pentacuspid and wider than the others (vs. first tooth on maxilla unicuspid or tricuspid and of same size as the others, except in Hemibrycon colombianus and Hemibrycon virolinica); absence of an expansion on the ventral anterior tip of the maxilla (vs. with expansion on the ventral anterior tip of the maxilla, except in Hemibrycon metae). Diagnosed from Hemibrycon colombianus in having 42-46 pored scales in the lateral line (vs. 46-54); and from the species of Hemibrycon from the upper and middle Río Magdalena drainage in having 25-29 branched anal-fin rays (vs. 19-24) (Ref. 83529).
Body shape (shape guide): elongated.
Inhabits creeks with surface temperature 21.5°C, air temperature 22.4°C, dissolved oxygen
7.0mg/l and 60% saturation, width 5-6 m, substrate composed of stone, sand, and decaying organic in decomposition and detritus and crystalline water (Ref. 83529).
生命週期和交配行為
成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
Román-Valencia, C. and D.K. Arcila-Mesa, 2010. Five new species of Hemibrycon (Characiformes: Characidae) from the Río Magdalena basin, Colombia. Revista de Biología Tropical (International Journal of Tropical Biology and Conservation) 58 (1):339-356. (Ref. 83529)
IUCN 瀕危狀態 (Ref. 130435: Version 2025-2 (Global))
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基於模型的估計
系統發育多樣性指數 (參考文獻 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=0.01096 (0.00555 - 0.02168), b=3.13 (2.94 - 3.32), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245). |
營養階層 (參考文獻 69278) |
3.0 ±0.4 se; based on size and trophs of closest relatives |
釣魚的脆弱性 (Ref. 59153) |
Low vulnerability (10 of 100). 🛈 |