分类 / 名称 俗名 | 同种异名 | Catalog of Fishes(属, 种) | ITIS | CoL | WoRMS | Cloffa
Teleostei > Osteoglossiformes (Bony tongues) > Mormyridae (Elephantfishes)
Etymology: Marcusenius: Becasue of J. Marcusen, author of "Zur Phauna des Schwarzen Meeres", 1867; ichthyologist.
Eponymy: Dr Johann Andreas Marcusen (1817–1894) was a Latvian of German descent who was a physician, ichthyologist and zoologist. [...] (Ref. 128868), visit book page.
More on author: Linnaeus.
Etymology: Marcusenius: Becasue of J. Marcusen, author of "Zur Phauna des Schwarzen Meeres", 1867; ichthyologist.
Eponymy: Dr Johann Andreas Marcusen (1817–1894) was a Latvian of German descent who was a physician, ichthyologist and zoologist. [...] (Ref. 128868), visit book page.
More on author: Linnaeus.
环境：氛围 / 气候带 / 深度上下限 / 分布范围 生态学
; 淡水 居于水底的; 河川洄游 (Ref. 138143). 熱帶
分布 领土 | FAO区域 | 生态系 | 标本纪录 | 分布图 | 简介 | Faunafri
Africa: Nile (delta to Bahr-el-Jebel), Niger (Lower Niger and Benoué) and Chad basins (Ref. 3203, 81274).Also reported from the Albert Nile and Aswa River (White Nile basin) in Uganda and from the upper Congo (Ref. 4903), but the latter seems outside the species distribution area and is questionable.
非洲: 尼羅河, Bahr-el-Jebel ，尼日與查德流域的從三角州。 也在 Benoue 河中.(參考文獻 2915) 分類相關: 接近 阿氏異吻象鼻魚〔Marcusenius abadii〕 。 臀鰭鰭條數量, 側線上的鱗片數與背鰭與臀鰭的位置區分兩者。
非洲: 尼羅河, Bahr-el-Jebel ，尼日與查德流域的從三角州。 也在 Benoue 河中.(參考文獻 2915) 分類相關: 接近 阿氏異吻象鼻魚〔Marcusenius abadii〕 。 臀鰭鰭條數量, 側線上的鱗片數與背鰭與臀鰭的位置區分兩者。
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) : 25 - 31; 臀棘: 0; 臀鳍软条: 30 - 37. Diagnosis: teeth small and conical (Ref. 4903, 81274), arranged in a single series confined to the middle of each jaw, 5-6 in both jaws (Ref. 4903). 16(-18) scales around caudal peduncle (Ref. 4903, 81274). Body depth 3.0-4.7 times in standard length; anal-fin base 0.7-0.9 times in dorsal-fin base (Ref. 81274). Head length 4-5.5 times in SL; upper head profile gently curved; snout 1/3-1/4 length of head; eye 1/2-2/3 length of snout; mouth small, a globular, fleshy swelling on the chin (Ref. 4903). Dorsal fin beginning slightly behind level of anal fin-origin (Ref. 2915, 81274), above the the 6th-9th anal fin ray (Ref. 4903) and comprising 25-31 rays (Ref. 2915, 4903, 81274). 70-92 lateral-line scales (Ref. 4903, 81274). Caudal-peduncle 2.0-3.4 times longer than deep (Ref. 2915, 4903, 81274). Caudal fin partly covered with small scales, its lobes pointed (Ref. 4903).
Coloration: silvery-grey, sometimes dark grey to blackish (Ref. 81274) or dark bluish-green dorsally (Ref. 4903).
Body shape (shape guide): fusiform / normal; Cross section: compressed.
背鳍些微地在臀鳍起源后面。 体高 3.0-4.7 x SL 与梗长度 2.0-3.4 倍于高。
Body shape (shape guide): fusiform / normal; Cross section: compressed.
背鳍些微地在臀鳍起源后面。 体高 3.0-4.7 x SL 与梗长度 2.0-3.4 倍于高。
Adults inhabit lakes, lagoons, reservoirs and (irrigation) canals. They are bottom feeding insectivores that breed during the flood season and enters the floodplain for this purpose (Ref. 28714). Thay show three 'preferred' modes of intervals between electric organ discharges (inter-EOD) when at rest: 10-35 ms, 50-120 ms and 200-350 ms (Ref. 10833).
栖息于湖。 底部摄取食物的食虫动物。 在洪水季节期间进行繁殖并且为这一个目的进入洪泛区。 (参考文献 28714) 显示三 '偏爱' 在发电器放电 (在中间-EOD) 之间的间隔模态当休息 : 10-35 ms ， 50-120 ms 与 200-350 ms.(参考文献 10833)
栖息于湖。 底部摄取食物的食虫动物。 在洪水季节期间进行繁殖并且为这一个目的进入洪泛区。 (参考文献 28714) 显示三 '偏爱' 在发电器放电 (在中间-EOD) 之间的间隔模态当休息 : 10-35 ms ， 50-120 ms 与 200-350 ms.(参考文献 10833)
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, Bahr-el-Jebel ，尼日與查德流域的從三角州。 也在 Benoue 河中.(參考文獻 2915) 分類相關: 接近 阿氏異吻象鼻魚〔Marcusenius abadii〕 。 臀鰭鰭條數量, 側線上的鱗片數與背鰭與臀鰭的位置區分兩者。
主要参考文献
上传您的参考资料 | 参考文献 | 合作者 | 合作者
Bigorne, R., 1990. Mormyridae. p. 122-184. In C. Lévêque, D. Paugy and G.G. Teugels (eds.) Faune des poissons d'eaux saumâtres d'Afrique de l'Ouest. tome 1. Faune Trop. 28. Musée Royal de l'Afrique Centrale, Tervuren, and ORSTOM, Paris. (Ref. 2915)
CITES
Not Evaluated
对人类的威胁
无害处的
人类利用
渔业: 低经济
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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=0.01122 (0.00638 - 0.01972), b=2.86 (2.71 - 3.01), in cm total length, based on LWR estimates for this species & Genus-body shape (Ref. 93245).
营养阶层 (参考文献 69278): 3.0 ±0.37 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.).