分類 / 名稱
俗名 | 同種異名 | Catalog of Fishes(屬, 種) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Characiformes (Characins)
脂鯉目 (Characins) >
Alestidae (African tetras)
Alestidae (African tetras)
Eponymy: François-Romain Thollon (1855–1896) was a French botanist and collector who resigned (1882) from MNHN Paris to work in the Congo and as a member of the de Brazza mission in Gabon. [...] (Ref. 128868), visit book page.
More on author: Pellegrin.
Taxonomic Remarks
Affinities: close to B. bartoni, B. longipennis, B. derhami and B. intermedius; distinguished from the first three species by higher number of scales above lateral line and from B. intermedius by a higher number of branched anal rays and lateral line scales (Ref. 80920). This species is placed in the genus Alestes in Eschmeyer (CofF ver. May 2011: Ref. 86870).
環境: 環境 / 氣候帶 / 深度上下限 / 配送範圍
生態學
; 淡水 大洋性. 熱帶
Africa: Lower Guinea endemic, found in Gabon and the Republic of Congo in the upper Ogowe, Nyanga and Kouilou River basins (Ref. 80290).
非洲: 加彭與剛果的海岸流域。
大小 / 重量 / 年齡
成熟度: Lm ?  range ? - ? cm
Max length : 8.9 cm SL 雄魚/尚未辨別雌雄; (Ref. 80290)
簡短描述
檢索表 | 型態特徵 | 形態測量圖
Diagnosis: fronto-parietal fontanel narrow but always present; head length/snout length 3.4-3.6; 34-38 lateral line scales; 6.5 scales between lateral line and dorsal fin; 11-11.5 predorsal scales; 22-25 anal fin branched rays; 13-14 gill rakers on lower limb of first gill arch; 6 teeth in outer premaxillary row; humeral spot present (Ref. 80290).
Body shape (shape guide): fusiform / normal.
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: 加彭與剛果的海岸流域。
Paugy, D. and S.A. Schaefer, 2007. Alestidae. p. 347-411. In M.L.J. Stiassny, G.G. Teugels and C.D. Hopkins (eds.) Poissons d'eaux douces et saumâtres de basse Guinée, ouest de l'Afrique centrale/The fresh and brackish water fishes of Lower Guinea, west-central Africa. Vol. 1. Coll. Faune et Flore tropicales 42. Istitut de recherche pour le développement, Paris, France, Muséum nationale d'histoire naturelle, Paris, France and Musée royale de l'Afrique centrale, Tervuren, Belgique. 800 p. (Ref. 80290)
IUCN 瀕危狀態 (Ref. 130435: Version 2025-2 (Global))
無危 (LC) ; 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 = 0.5156 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.01072 (0.00489 - 0.02350), b=3.02 (2.84 - 3.20), 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) |
3.1 ±0.4 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 (Preliminary K or Fecundity.). |
釣魚的脆弱性 (Ref. 59153) |
Low vulnerability (11 of 100). 🛈 |