分类 / Names
俗名 | 同种异名 | Catalog of Fishes(属, 种) | ITIS | CoL | WoRMS | Cloffa
Environment: milieu / climate zone / depth range / distribution range
生态学
; 淡水; 半咸淡水 大洋性; 河川洄游 (Ref. 51243). 熱帶; 22°C - 28°C (Ref. 12468)
Africa: present throughout intertropical Africa (Ref. 2880, 80290, 81279). Absence from the Gambia basin is noteworthy (Ref. 81279). Present in the Nile system (Ref. 28714, 58460) up to Lake Albert (Ref. 4903) and in Lake Turkana system (Ref. 28663). Widely distributed in the Congo River basin (Ref. 5331, 42019, 42510, 45434).
非洲: 之中-熱帶但是不存在於甘比亞流域。 來自到喀麥隆獅子山的塞內加爾，尼日，查德，佛塔河與流域; 蘇丹邊緣, 尼羅河，艾伯特湖尼羅河與 Murchison 尼羅河，湖艾伯特湖，維多利亞， Omo 與特坎那湖，剛果河流域上游.(參考文獻 5331)
Length at first maturity / 大小 / 重量 / 年龄
Maturity: Lm 18.5, range 33 - ? cm
Max length : 53.0 cm SL 雄鱼/尚未辨别雌雄; (Ref. 2880); 最大体重: 2.0 kg (Ref. 3799)
臀棘: 0; 臀鳍软条: 13 - 19. Diagnosis: fronto-parietal fontanel absent in adults, sometimes pore-like in juveniles; snout long, comprimised 3x in head length; dorsal fin origin distinctly behind pelvic fin insertion; adults large-sized; no sexual dimorphism affecting anal fin shape; 21-31 lateral line scales; 4.5 scales between lateral line and dorsal fin; 10-16 anal fin branched rays; 14-22 gill rakers on lower limb of first gill arch; 8-14 teeth in outer premaxillary row (Ref. 2880, 80290, 81279). Head length/snout length 2.6-2.9; 10-12 predorsal scales (Ref. 80290). Body depth more than 3x SL in adults (Ref. 2880, 81279).
甚至当幼鱼时的没有囟门。 上眼眶的硬骨发展良好的。 上颌当成鱼时长度超过低的。 肱骨而前尾部的斑点黑色。 呈绿色的背面, 白色的腹面。 当成鱼时只有有时有来自鳃盖到尾鳍的橘色的侧面斑纹。 大多数的鱼有红色-橘色的到粉红色的鳍。 只有来自卡瓦利河的那些有鲜红色鳍。 在尾柄的上半部上稚鱼有白色的斑点。 在第一 ceratobranch 上的鳃耙。
More common in rivers than lakes; feeds on insects, crustaceans, fish, vegetation and debris (Ref. 28714). Considering the distribution of different forms (according to collection determinations), it should be noted that a B. macrolepidotus 'form' is found only in northern regions, while a B. schoutedi 'form' is found only in southern regions. However, between these two forms there appears to be mixing and intermediacy of forms. We consider that there are several populations which have evolved in a geographical gradient to produce different morphotypes of a single species (Ref. 80290).
较常见于河胜于湖。 吃昆虫，甲壳动物，鱼，植物与残砾。 (参考文献 28714)
Life cycle and mating behavior
成熟度 | 繁殖 | 产卵场 | 卵 | 孕卵数 | 仔鱼
非洲: 之中-熱帶但是不存在於甘比亞流域。 來自到喀麥隆獅子山的塞內加爾，尼日，查德，佛塔河與流域; 蘇丹邊緣, 尼羅河，艾伯特湖尼羅河與 Murchison 尼羅河，湖艾伯特湖，維多利亞， Omo 與特坎那湖，剛果河流域上游.(參考文獻 5331)
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)
世界自然保护联盟红皮书 (Ref. 130435: Version 2024-1)
人类利用
渔业: 商业性
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特别资料
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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=0.00977 (0.00743 - 0.01285), b=2.99 (2.94 - 3.04), in cm total length, based on LWR estimates for this species (Ref.
93245).
营养阶层 (Ref.
69278): 2.8 ±0.35 se; based on food items.
Generation time: 2.4 ( na - na) years. Estimated as median ln(3)/K based on 1
growth studies.
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 to moderate vulnerability (31 of 100).
