分类 / Names
俗名 | 同种异名 | Catalog of Fishes(属, 种) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Characiformes (Characins) >
Alestidae (African tetras)
Etymology: Brycinus: Greek, ebrykon, brykomai = to bite, to gnaw (Ref. 45335); nurse: rüppellii.
More on author: Rüppell.
Environment: milieu / climate zone / depth range / distribution range
生态学
; 淡水 大洋性; pH range: 6.0 - 7.8; dH range: ? - 30; 河川洄游 (Ref. 51243). 熱帶; 23°C - 27°C (Ref. 2060)
Africa: widely distributed in West Africa (Ref. 2880, 81279). In Lower Guinea present in Cross and Mémé rivers (Ref. 80279). Also in Chad basin (Ref. 367, 81279) and Nile River (Ref. 28714, 31439, 58460) up to Lake Albert (Ref. 4903, 42019).
非洲: 尼羅河，查德，尼日與 Benoue ，十字河， Ogun ， Oueme ，單一， Sio ，佛塔河， Bia ， Comoe ， Agnebi ， Bandama ，薩桑德拉河， Konkoure ，甘比亞， Tomine(Corubal) ，塞內加爾。
Length at first maturity / 大小 / 重量 / 年龄
Maturity: Lm 8.9, range 22 - ? cm
Max length : 25.0 cm TL 雄鱼/尚未辨别雌雄; (Ref. 3799); 最大体重: 200.00 g (Ref. 3799)
臀棘: 0; 臀鳍软条: 13 - 18. Diagnosis: multicuspid teeth set in two rows and not overlapping the jaws when the mouth is closed; teeth stout, not compressed; eyes with well-developed vertical adipose lids; slender body; head not flattened (Ref. 28714). Dorsal fin origin at about same level as pelvic fin insertion (Ref. 2880, 80290, 81279), about halfway between caudal fin and snout (Ref. 28714). Fronto-parietal fontanel absent in adults, sometimes pore-like in juveniles, disappearing with growth; sexual dimorphism affecting anal fin shape; 24-34 lateral line scales; 5.5 scales between lateral line and dorsal fin; 10-15 anal fin branched rays; 14-20 gill rakers on lower limb of first gill arch; 8 teeth in outer premaxillary row (Ref. 2880, 80290, 81279). Snout short, more than 3x head length; head length/snout length 3.6-4.3; 10-11.5 predorsal scales; flanks without lateral band; adults medium-sized (Ref. 80290).
顶骨囱门在稚鱼中不存在于成鱼 , ponctiform 。 颚等于。 在肛门形式的雄鱼成鱼上的性的同种二形。 肱骨的与尾前椎斑点黑色。 背面呈绿色的, 侧边银色的与腹面分开白色。 偶鳍鲜红色, 胸鳍与不彩色或淡的腹面橘色的。 分开眼睛上方红色的。
Inhabits rivers, lakes, irrigation canals and fringing vegetation; feeds on zooplankton, Caridina, insects, snails and vegetation (Ref. 28714). Dwarf populations are described in lake basins: Lake Turkana, B. n. nana Pellegrin, 1935 and Lake Chad, B. n. dageti Blache and Miton, 1960 (see Ref. 2880).
栖息于河，湖，灌溉管与岸边的植丛。 吃浮游动物， Caridina ，昆虫，蜗牛与植物。 (参考文献 28714) 矮小的族群在湖流域被描述: 特坎那湖， B. n。 脑袋 Pellegrin, 1935 与查德湖， B. n。 dageti Blache 与 Miton, 1960.(见参考文献 2880)
非洲: 尼羅河，查德，尼日與 Benoue ，十字河， Ogun ， Oueme ，單一， Sio ，佛塔河， Bia ， Comoe ， Agnebi ， Bandama ，薩桑德拉河， Konkoure ，甘比亞， Tomine(Corubal) ，塞內加爾。
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)
人类利用
渔业: 低经济; 水族馆: 商业性
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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=0.01202 (0.00924 - 0.01564), b=2.98 (2.93 - 3.03), in cm total length, based on LWR estimates for this species (Ref.
93245).
营养阶层 (Ref.
69278): 2.5 ±0.2 se; based on diet studies.
回复力 (Ref.
120179): 高度, 族群倍增时间少于 15个月 (K=0.41-0.92; tm=1; Fec < 1,000).
Fishing Vulnerability (Ref.
59153): Low to moderate vulnerability (29 of 100).
Nutrients (Ref.
124155): Calcium = 147 [53, 366] mg/100g; Iron = 2.12 [1.01, 4.98] mg/100g; Protein = 18.7 [16.7, 21.0] %; Omega3 = 0.503 [0.186, 1.390] g/100g; Selenium = 45 [19, 123] μg/100g; VitaminA = 42.5 [14.9, 114.6] μg/100g; Zinc = 2.38 [1.62, 3.53] mg/100g (wet weight);
