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 底中水层性; 河川洄游 (Ref. 51243). 亞熱帶的; 24°S - 30°S
Africa: Orange-Vaal River system.
非洲: 橘色- 瓦爾河系統。
Length at first maturity / 大小 / 重量 / 年龄
Maturity: Lm 51.8, range 7 - ? cm
Max length : 82.5 cm FL 雄鱼/尚未辨别雌雄; (Ref. 7248); 最大体重: 22.2 kg (Ref. 7248)
Is the largest scale-bearing indigenous fish species in southern Africa. Adults prefer flowing water in deep channels or below rapids, but the species does well in dams. Mainly a predator, initially taking insects and small crustaceans but piscivore above 30 cm FL. Breeds in mid-summer to late summer over gravel beds in running water. May live for 12 or more years (Ref. 7248). Imported for food in US and Canadian markets (Ref. 4537)
非洲南部中最大的有鳞片的本地鱼种是。 成鱼在深的峡道中偏爱流动的水或者在急流之下, 但是此鱼种在水坝中生存良好。 主要地一个掠食者, 起初吃昆虫与小型甲壳动物但是体长超过30 公分 FL时食性转为食鱼性。 在流动的水中繁殖于在砾石床上的夏季中旬到夏末。 可以活到 12个或更多数年。 (参考文献 7248) 在美国与加拿大市场输入作为食用鱼 (参考文献 4537)
Life cycle and mating behavior
成熟度 | 繁殖 | 产卵场 | 卵 | 孕卵数 | 仔鱼
非洲: 橘色- 瓦爾河系統。
Lévêque, C. and J. Daget, 1984. Cyprinidae. p. 217-342. In J. Daget, J.-P. Gosse and D.F.E. Thys van den Audenaerde (eds.) Check-list of the freshwater fishes of Africa (CLOFFA). ORSTOM, Paris and MRAC, Tervuren. Vol. 1. (Ref. 2801)
世界自然保护联盟红皮书 (Ref. 130435: Version 2024-2)
临近濒危 (NT) (B2b(ii,iii,v)); Date assessed: 20 December 2016
人类利用
渔业: 自给性渔业; 养殖: 实验的; 游钓鱼种: 是的
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特别资料
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网络资源
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=0.00912 (0.00483 - 0.01723), b=3.06 (2.90 - 3.22), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245).
营养阶层 (Ref.
69278): 3.6 ±0.54 se; based on food items.
Generation time: 15.7 ( na - na) years. Estimated as median ln(3)/K based on 2
growth studies.
回复力 (Ref.
120179): 非常低的, 最小族群倍增时间超过14 年 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): High to very high vulnerability (67 of 100).
Nutrients (Ref.
124155): Calcium = 60.1 [37.7, 105.4] mg/100g; Iron = 1.35 [0.85, 2.10] mg/100g; Protein = 18.2 [17.3, 19.1] %; Omega3 = 0.613 [0.265, 1.474] g/100g; Selenium = 30.7 [13.0, 75.2] μg/100g; VitaminA = 60.4 [19.6, 206.0] μg/100g; Zinc = 0.978 [0.706, 1.381] mg/100g (wet weight);
