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Teleostei >
Siluriformes (Catfishes)
鯰形目 (Catfishes) >
Bagridae (Bagrid catfishes)
鱨科 (Bagrid catfishes)
Etymology: Bagrus: Mozarabic, bagre, taken from Greek, pagros = a fish (Dentex sp.) (Ref. 45335).
More on authors: Roberts & Stewart.
環境: 環境 / 氣候帶 / 深度上下限 / 配送範圍
生態學
; 淡水 居於水底的. 熱帶; 6°N - 4°N
Africa: present in the rapids of the lower Congo River (Ref. 78218). Possibly only known from the type locality near Inga hydroelectric dam and near Gombe (or Ngombe), about 20 km downstream from Kinshasa, Lower Congo River (Ref. 3236, 42510).
非洲: 已知只來自模式標本產地。 (在 Inga 水電水壩與 Gombe 或 Ngombe 的附近大約 20 公里來自金沙薩的下游)
大小 / 重量 / 年齡
成熟度: Lm ?  range ? - ? cm
Max length : 21.0 cm SL 雄魚/尚未辨別雌雄; (Ref. 42510)
簡短描述
檢索表 | 型態特徵 | 形態測量圖
臀鰭軟條: 6 - 7. Eye small, decreasing in relative size with growth; occipital processus widely separated from first interneural bone; juveniles as well as adults bluish on the back and sides, with a darkened area in front of the dorsal fin (more noticeable in juveniles); undersides of head and abdomen pale, and edges of upper and lower caudal fin lobes whitish (Ref. 42510).
Body shape (shape guide): elongated.
眼小的, 隨著成長在相關的大小中漸減; 後頭骨活動第一個背側間的硬骨分得很開; 稚魚以及成魚藍色的在背部與側邊上, 在背鰭之前具有一個顏色較深區域;(更易見的在稚魚中) 頭部與腹部的下面灰白的, 與上、下尾鰭葉的邊緣微白色的.(參考文獻 42510)
生命週期和交配行為
成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
非洲: 已知只來自模式標本產地。 (在 Inga 水電水壩與 Gombe 或 Ngombe 的附近大約 20 公里來自金沙薩的下游)
Roberts, T.R. and D.J. Stewart, 1976. An ecological and systematic survey of fishes in the rapids of the Lower Zaïre or Congo River. Bull. Mus. Comp. Zool. 147(6):239-317. (Ref. 42510)
IUCN 瀕危狀態 (Ref. 130435: Version 2025-2 (Global))
易受傷害 (VU) (D2); Date assessed: 16 February 2009
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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 = 0.5005 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.00871 (0.00415 - 0.01826), b=2.93 (2.76 - 3.10), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245). |
營養階層 (參考文獻 69278) |
3.7 ±0.8 se; based on size and trophs of closest relatives |
回復力 (參考文獻 120179) |
高度, 族群倍增時間少於 15個月 (Assuming Fec>10,000). |
釣魚的脆弱性 (Ref. 59153) |
Low to moderate vulnerability (35 of 100). 🛈 |