分類 / Names
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)
Etymology: Brycinus: Greek, ebrykon, brykomai = to bite, to gnaw (Ref. 45335).
More on author: Boulenger.
Environment: milieu / climate zone / depth range / distribution range
生態學
; 淡水 大洋性. 熱帶
Africa: coastal basins in Cameroon, Gabon and the Republic of Congo (Ref. 28013, 80290). Also reported from the Dja system (middle Congo River basin) in Cameroon (Ref. 28013, 51193, 80290).
非洲: Kribi ， Mvile ， Dja ，名詞, 在喀麥隆南方部的沙那加河; 在加彭的剛果 (參考文獻 5331) 與奧克維河的 Niari-Kouilou.(參考文獻 28013)
大小 / 重量 / 年齡
Maturity: Lm ? range ? - ? cm
Max length : 12.8 cm SL 雄魚/尚未辨別雌雄; (Ref. 28013)
簡短描述
檢索表 | 型態特徵 | 形態測量圖
背棘 (總數) : 0; 背的軟條 (總數) : 10. Diagnosis: fronto-parietal fontanel absent in adults, sometimes pore-like in juveniles; snout short, more than 3x head lenght; dorsal fin origin just behind pelvic fin insertion; sexual dimorphism affecting anal fin shape; head length/snout length 3.1-4.0; 24-30 lateral line scales; 4.5 scales between lateral line and dorsal fin; 10.5-12 predorsal scales; 12-16 anal fin branched rays; 16-25 gill rakers on lower limb of first gill arch; 8 teeth in outer premaxillary row; adults medium-sized; humeral spot always present; broad black band on flanks; most apparent part of this band reaches or extends beyond vertical through posterior base of dorsal fin (Ref. 80290).
在雄性成魚的臀鰭性別雙型性, 是圓形的取代凹曲當在雌性中。
Life cycle and mating behavior
Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 仔魚
非洲: Kribi ， Mvile ， Dja ，名詞, 在喀麥隆南方部的沙那加河; 在加彭的剛果 (參考文獻 5331) 與奧克維河的 Niari-Kouilou.(參考文獻 28013)
Toham, A.K. and G.G. Teugels, 1997. Redescription of two morphologically similar Brycinus species (Ostariophysi: Characidae) from Central Africa. Copeia 1997(2):363-372. (Ref. 28013)
IUCN 瀕危狀態 (Ref. 130435)
無危 (LC) ; Date assessed: 16 February 2009
人類使用
工具
特別的報告
下載 XML
網路資源
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01230 (0.00541 - 0.02797), b=2.99 (2.81 - 3.17), in cm total length, based on LWR estimates for this Genus-body shape (Ref.
93245).
營養階層 (Ref.
69278): 3.1 ±0.4 se; based on size and trophs of closest relatives
回復力 (Ref.
120179): 高度, 族群倍增時間少於 15個月 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
