分类 / 名称 俗名 | 同种异名 | Catalog of Fishes(属, 种) | ITIS | CoL | WoRMS | Cloffa
Teleostei > Characiformes (Characins) > Distichodontidae (Distichodus)
Etymology: Distichodus: Greek, di = two + Greek, stix, stichos = line, row (Ref. 45335).
More on author: Bonnaterre.
Etymology: Distichodus: Greek, di = two + Greek, stix, stichos = line, row (Ref. 45335).
More on author: Bonnaterre.
Taxonomic Remarks
See explanation of name change from Distichodus niloticus (Hasselquist, 1762) in Eschmeyer (CofF ver. Oct. 2012: Ref. 92135) according to Fricke (2008: Ref. 83466).
环境：氛围 / 气候带 / 深度上下限 / 分布范围 生态学
; 淡水 大洋性. 熱帶
分布 领土 | FAO区域 | 生态系 | 标本纪录 | 分布图 | 简介 | Faunafri
Africa: Lake Albert (Ref. 4903, 49805), Lakes Turkana and No, Murchison Nile (Ref. 4903), White and Blue Nile, and the Chad basin where it is uncommon (Ref. 7094).
非洲: 白色與藍色的尼羅河，特坎那湖, 包括查德流域在那裡它是稀有的。
非洲: 白色與藍色的尼羅河，特坎那湖, 包括查德流域在那裡它是稀有的。
大小 / 重量 / 年龄
简单描述 检索表 | 型态特徵 | 形态测量图
背的软条 (总数) : 22 - 26; 臀鳍软条: 13 - 15. Diagnosis: depth of body 2.5-3.5 times in standard length, length of head 3 (in young fishes) to 5 times (in adults) (Ref. 4903). Snout not elongated (Ref. 28714), rounded (Ref. 4903), not or slightly projecting beyond the mouth (Ref. 4903, 28714). Maxilla extending to below the nostrils; upper surface of the head, and the operculum ridged with low, radiating striations (Ref. 4903). Teeth all small and bicuspidate (Ref. 28714), in two series, outer with 24-36 teeth (Ref. 4903). Dorsal fin with 22-26 rays, the first 3-6 unbranched (Ref. 4903). Adipose fin covered with small scales (Ref. 4903, 28714), small, its basal length about 2-4 times its distance from the posterior margin of the dorsal fin (Ref. 28714). Anal fin with 13-15 rays, the first 3-4 unbranched; caudal fin forked, its rounded lobes almost entirely scaled; lateral line with 90-110 scales (Ref. 4903). 18-21 scales between lateral line and dorsal-fin origin (Ref. 4903, 28714). 15-18 scales between insertion of pelvic fin and lateral line (Ref. 4903). Large robust fish as adults (Ref. 28714).
Coloration: purplish-silver above, silver below; young fishes with several vertical dark bars on the flank (Ref. 4903).
In Lake Albert found in the shallow inshore waters, especially in the region of
deltas; also in rivers (Ref. 4903). Macro-herbivore, feeds on submerged water plants (Ref. 4903, 28714), Eichornia roots and periphyton (Ref. 28714), but also molluscs and small Crustacea (Ref. 4903). Oviparous (Ref. 205).
大型草食动物, 吃水下的水中植物， Eichornia 根与固着生物。 (参考文献 28714) 卵生的.(参考文献 205)
大型草食动物, 吃水下的水中植物， Eichornia 根与固着生物。 (参考文献 28714) 卵生的.(参考文献 205)
生命周期和交配行为 成熟度 | 繁殖 | 产卵场 | 卵 | 孕卵数 | 仔鱼
Oviparous (Ref. 205). Distinct pairing occurs (Ref. 205). Males lingering near the nesting site deemed as the closest thing to parental care (Ref. 205).非洲: 白色與藍色的尼羅河，特坎那湖, 包括查德流域在那裡它是稀有的。
主要参考文献
上传您的参考资料 | 参考文献 | 合作者 | 合作者
Daget, J. and J.-P. Gosse, 1984. Distichodontidae. p. 184-211. 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. 7094)
世界自然保护联盟红皮书 (Ref. 130435: Version 2025-2 (Global))
易受伤害 (VU) (A2bcd+3cd); Date assessed: 12 April 2021
CITES
Not Evaluated
对人类的威胁
无害处的
人类利用
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 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high]. |
| Bayesian length-weight | a=0.00447 (0.00185 - 0.01077), b=3.17 (2.96 - 3.38), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245). |
|
营养阶层 (参考文献 69278) |
2.0 ±0.00 se; based on food items. |
|
渔业脆弱性 (Ref. 59153) |
Moderate vulnerability (35 of 100). 🛈 |