Parachanna obscura (Günther, 1861)
African obscure snakehead
分类 / 名称 俗名 | 同种异名 | Catalog of Fishes(属, 种) | ITIS | CoL | WoRMS | Cloffa
Teleostei > Anabantiformes (Gouramies, snakeheads) 鱸形目 (Gouramies, snakeheads) > Channidae (Snakeheads) 鱧科 (Snakeheads)
Etymology: Parachanna: Greek, para = the side of + Greek, channe, -es = anchovy (Ref. 45335).
More on author: Günther.
Etymology: Parachanna: Greek, para = the side of + Greek, channe, -es = anchovy (Ref. 45335).
More on author: Günther.
环境：氛围 / 气候带 / 深度上下限 / 分布范围 生态学
分布 领土 | FAO区域 | 生态系 | 标本纪录 | 分布图 | 简介 | Faunafri
Africa: widely distributed from the Senegal River to the Chad system (Ref. 3575, 57290), including the Volta and Niger basins and many coastal basins in West Africa (Ref. 57290), up to the Nile (Ref. 3575, 28714) and Congo basins (Ref. 45434, 106290, 111328). In Lower Guinea known from most coastal basins (Ref. 81648).
非洲: 尼羅河, 塞內加爾到查德系統向上到剛果河流域。
非洲: 尼羅河, 塞內加爾到查德系統向上到剛果河流域。
大小 / 重量 / 年龄
简单描述 检索表 | 型态特徵 | 形态测量图
背棘 (总数) : 0; 背的软条 (总数) : 39 - 45; 臀棘: 0; 臀鳍软条: 26 - 32. Diagnosis: body elongate; lateral-line scales medium-sized, numbering 65-78; head depressed anteriorly, relatively long and covered with scales larger than those on body; lower jaw slightly longer than the upper, with 4-6 well developed canines; dorsal and anal fins not touching caudal fin; dorsal fin with 39-45, anal with 26-32 rays; 5-8 more or less rounded or polygonal dark blotches on flanks (Ref. 57290, 81648, 11328). 19-24 scales in transversal series (Ref. 11328).
Body shape (shape guide): elongated; Cross section: circular.
Body shape (shape guide): elongated; Cross section: circular.
Obligate air-breathing (Ref. 126274); Inhabits marginal vegetation and floodplains. Feeds on insects and small fish (Ref. 28714). Maximum SL reported 50.0 cm (Ref. 31256) larger than maximum TL 45.5 cm (Ref. 81648).
栖息于杂草丛与洪泛区。 吃昆虫与小鱼。 (参考文献 28714)
栖息于杂草丛与洪泛区。 吃昆虫与小鱼。 (参考文献 28714)
生命周期和交配行为 成熟度 | 繁殖 | 产卵场 | 卵 | 孕卵数 | 仔鱼
非洲: 尼羅河, 塞內加爾到查德系統向上到剛果河流域。
主要参考文献
上传您的参考资料 | 参考文献 | 合作者 | 合作者
Teugels, G.G., J.J. Breine and D.F.E. Thys van den Audernaerde, 1986. Channidae. p. 288-290. In J. Daget, J.-P. Gosse and D.F.E. Thys van den Audenaerde (eds.) Checklist of the freshwater fishes of Africa (CLOFFA). ORSTOM, Paris and MRAC, Tervuren. Vol. 2. (Ref. 3575)
CITES
Not Evaluated
对人类的威胁
无害处的
人类利用
渔业: 商业性
FAO - Publication: search | FishSource |
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基于模型的估算
系统发育多样性指数 (参考文献 82804): PD50 = 0.6250 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00759 (0.00628 - 0.00916), b=3.01 (2.96 - 3.06), in cm total length, based on LWR estimates for this species (Ref. 93245).
营养阶层 (参考文献 69278): 3.4 ±0.56 se; based on food items.
回复力 (参考文献 120179): 中等的, 族群倍增时间最少 1.4 - 4.4年 (Preliminary K or Fecundity.).
营养素 (Ref. 124155): Calcium = 130 [69, 247] mg/100g; Iron = 1.24 [0.63, 2.21] mg/100g; Protein = 18.4 [16.6, 20.2] %; Omega3 = 0.23 [0.10, 0.52] g/100g; Selenium = 59.5 [25.0, 134.7] μg/100g; VitaminA = 33.1 [11.5, 92.8] μg/100g; Zinc = 1.58 [1.07, 2.30] mg/100g (wet weight);