分类 / Names
俗名 | 同种异名 | Catalog of Fishes(属, 种) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Characiformes (Characins) >
Alestidae (African tetras)
Eponymy: Sir Frederick John Jackson (1859–1929) was an English administrator and explorer, but also a naturalist and keen ornithologist. [...] (Ref. 128868), visit book page.
More on author: Boulenger.
Environment: milieu / climate zone / depth range / distribution range
生态学
; 淡水 大洋性; 深度上下限 0 - 20 m (Ref. 34290). 熱帶
Africa: Lake Victoria (and at least some affluent streams and rivers), Lake Nabugabo, Malawa River, Victoria Nile (Ref. 34290, 104654) and Middle Akagera drainage (Ref. 46152).
非洲: 維多利亞湖 (而在得最沒有一些富饒的溪流與河川) ，湖 Nabugabo 湖， Malawa 河，維多利亞尼羅河。
大小 / 重量 / 年龄
Maturity: Lm ? range ? - ? cm
Max length : 27.0 cm SL 雄鱼/尚未辨别雌雄; (Ref. 34290); common length : 23.0 cm SL 雄鱼/尚未辨别雌雄; (Ref. 34290)
背棘 (总数) : 0; 背的软条 (总数) : 10; 臀棘: 0; 臀鳍软条: 18 - 19. Anal fin margin of females straight or very slightly concave; markedly convex in males (individual rays are stouter and coarser than those of females). Silver, bluish-grey to black-blue dorsally. Large black blotch on the caudal peduncle, with narrow extension on the caudal fin; round black spot behind the head. Dorsal fin grey, adipose dorsal fin orange. All fins grey in color; other specimens all yellowish (except for pectorals). Anal and pelvic fins of a faint orange tinge or grey with a faint yellowish sheen (Ref. 34290).
雌性的臀鳍边缘笔直地或非常些微地凹曲; 显着中凸在雄性中.(个别的鳍条比雌性的更矮胖与更粗) 银色的, 蓝灰色的到黑色的-背面的蓝色。 在尾梗上的大的黑色斑块, 在尾鳍上有狭窄的延长; 圆的黑色斑点在头部后面。 背鳍灰色又脂肪的背鳍橘色的。 所有的鳍灰色的颜色; 其他的标本所有的淡黄色的.(除了胸鳍) 模糊橘色的淡色臀鳍与腹鳍鳍或灰色的具有一个模糊的淡黄色的光辉.(参考文献 34290)
In Lake Victoria confined to shallow coastal areas (Ref. 34290, 104654), in water less than 20 m deep (Ref. 12526, 34290). Omnivore, feeding on aquatic plants, surface insects and small fishes, and sometimes on molluscs (Ref. 4903, 12526, 104654). Known to run up rivers and streams in Lake Victoria during rainy season (Ref. 4903). Apparently rare since introduction of Lates (Ref. 4967).
栖息于沿岸浅水区。 (参考文献 4967)
Life cycle and mating behavior
成熟度 | 繁殖 | 产卵场 | 卵 | 孕卵数 | 仔鱼
非洲: 維多利亞湖 (而在得最沒有一些富饒的溪流與河川) ，湖 Nabugabo 湖， Malawa 河，維多利亞尼羅河。
van Oijen, M.J.P., 1995. Appendix I. Key to Lake Victoria fishes other than haplochromine cichlids. p. 209-300. In F. Witte and W.L.T. van Densen (eds.) Fish stocks and fisheries of Lake Victoria. A handbook for field observations. Samara Publishing Limited, Dyfed, Great Britain. (Ref. 34290)
世界自然保护联盟红皮书 (Ref. 130435: Version 2024-2)
人类利用
渔业: 没有兴趣
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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=0.01122 (0.00496 - 0.02540), b=3.01 (2.83 - 3.19), in cm total length, based on LWR estimates for this Genus-body shape (Ref.
93245).
营养阶层 (Ref.
69278): 3.3 ±0.5 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 (23 of 100).
