Common names from other countries
分类 / Names
俗名 | 同种异名 | Catalog of Fishes(属, 种) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Osteoglossiformes (Bony tongues) >
Mormyridae (Elephantfishes)
Etymology: Hyperopisus: Greek, yper = over, up + Greek, pisos, -eos, ous = a wet place.
More on author: Lacepède.
Environment: milieu / climate zone / depth range / distribution range
生态学
; 淡水; 半咸淡水 居于水底的; 河川洄游 (Ref. 51243). 熱帶; 22°C - 24°C (Ref. 12468)
Africa: all Sahelo-Sudanese river basins (Ref. 81274), including the Senegal, Gambia, Niger, Volta, Ouémé, Ogun and Chad (Ref. 2915). Also in the Nile basin, up to the Albert and Murchison Niles (Ref. 3203).
非洲: 尼羅河流域 (向上到艾伯特湖與 Murchison 尼羅河). 也已知來自塞內加爾，甘比亞，尼日， Benoue ，佛塔河， Oueme ， Ogun ， Logone 與 Chari 的大薩哈拉 - 蘇丹河流域。 (參考文獻 2915)
Length at first maturity / 大小 / 重量 / 年龄
Maturity: Lm 33.0 range ? - ? cm
Max length : 51.0 cm SL 雄鱼/尚未辨别雌雄; (Ref. 2915); 最大体重: 1.0 kg (Ref. 3799)
简单描述
型态特徵 | 形态测量图
背棘 (总数): 0; 背的软条 (总数): 12-16; 臀棘 0; 臀鳍软条: 52 - 71. Diagnosis: body depth 3.5-6.2 times in SL, head length 4.5-6.2 times (Ref. 2915, 4903, 81274). Head length 1.6-2.3 times greater than its width (Ref. 2915, 81274) and 6-13.5 times greater than eye diameter (Ref. 81274). Dorsal head profile strongly curved (Ref. 4903), rounded, snout short, thick and blunt (Ref. 81274). Eye small, diameter 1/6 (in young fishes) to 1/9 of head length in adults; mouth small and terminal, teeth notched, 3-5 in upper and 4-6 in lower jaw (Ref. 4903). Anal fin with 52-71 rays, its origin about equidistant from snout tip and caudal-fin base (Ref. 81274). Dorsal fin very short (Ref. 28714, 81274), one fifth or less of the anal fin length (Ref. 4903, 28714), with 12-16 rays (Ref. 4903, 81274) of which the first 2-3 unbranched (Ref. 4903). Anal-fin base 4-7.7 times longer than dorsal-fin base; pectoral fins 1.1- 1.7 times in head length; pelvic fins about half as long as the pectorals (Ref. 2915, 81274). 90-120 lateral line scales (Ref. 4903, 81274) and 16-20 (exceptionally 22) around caudal peduncle (Ref. 81274). Depth of caudal peduncle 1.5-3.6 times in its length (Ref. 2915, 81274).
Coloration: ground color silvery, back darker, olivaceous, brownish or yellowish, with scattered black dots in adults; belly greyish; neck greyish or white; fins greyish (Ref. 81274).
只有的在成鱼上的斑点; 体高 3.9-6.2 x SL; 头长 4.6-6.2 x SL; 头部在 1.6-2.3 倍于宽的; 臀鳍基底鳍 4-7.7 倍于背鳍基底; 胸的 1.1-1.7个 x 头长; 腹面 2个 x 比较短的胸鳍; 尾柄是 1.5-3.6个 x 它的长度。
Inhabits both still and flowing waters; breeds in the flood season; feeds on mollusks (Ref. 28714). Possesses electroreceptors over the entire head and on the ventral and dorsal regions of the body, but absent from the side and the caudal peduncle where the electric organ is located (Ref. 10011). Its electric organ discharge (EOD) is steroid-sensitive (Ref. 10763; 10764). Fecundity value of 18,924 eggs has been reported for this species (Ref. 10607).
栖息于静止的或流动的水域, 在洪水季节中繁殖。 吃软件动物。 (参考文献 28714) 具有电感受体布满整个头与在身体的腹与背部区域上, 但是发电器官所在的体侧与尾梗没有出现.(参考文献 10011) 它的发电器放电 (EOD) 是类固醇-敏感的 (参考文献 10763; 10764)。 产卵数目为 18,924个卵已经是这个种的报告。 (参考文献 10607)
Life cycle and mating behavior
成熟度 | 繁殖 | 产卵场 | 卵 | 孕卵数 | 仔鱼
非洲: 尼羅河流域 (向上到艾伯特湖與 Murchison 尼羅河). 也已知來自塞內加爾，甘比亞，尼日， Benoue ，佛塔河， Oueme ， Ogun ， Logone 與 Chari 的大薩哈拉 - 蘇丹河流域。 (參考文獻 2915)
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 (Ref. 128078)
Not Evaluated
人类利用
渔业: 商业性
更多信息
参考文献养殖养殖信息品种遗传学Electrophoreses遗传率疾病加工Mass conversion
合作者照片Stamps, Coins Misc.声音神经毒速度泳型鳃区Otoliths脑重体重比眼睛色素
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 1.0000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01175 (0.00696 - 0.01983), b=2.82 (2.68 - 2.96), in cm Total Length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245).
营养阶层 (Ref.
69278): 3.6 ±0.50 se; based on food items.
回复力 (Ref.
120179): 中等的, 族群倍增时间最少 1.4 - 4.4年 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Moderate vulnerability (45 of 100).
