分類 / Names
俗名 | 同種異名 | Catalog of Fishes(屬, 種) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Osteoglossiformes (Bony tongues)
骨舌魚目 (Bony tongues) >
Mormyridae (Elephantfishes)
象鼻魚科 (Elephantfishes)
Etymology: Mormyrus: Greek, mormyros = a fish (Sparus sp) (Ref. 45335).
Eponymy: Frederik Hasselquist (1722–1752) was a traveler and naturalist. [...] (Ref. 128868), visit book page.
More on author: Valenciennes.
Environment: milieu / climate zone / depth range / distribution range
生態學
; 淡水 居於水底的; 河川洄游 (Ref. 51243). 熱帶
Africa: Nile and Chad basins. Known from the great Sahelo-Soudanian basins in Senegal, Gambia and Volta; also in the Mono, the Gêba, the Bandama, the Comoe River, and the Ebrie and Aguien lagoons (Ref. 2915).
非洲: 尼羅河與查德流域。 已知來自大的塞內加爾的 Sahelo- Soudanian 流域，甘比亞與佛塔河了; 也在單一， Geba ， Bandama ， Comoe 河 , 與 Ebrie 與 Aguien 潟湖中.(參考文獻 2915)
Length at first maturity / 大小 / 重量 / 年齡
Maturity: Lm 19.0 range ? - ? cm
Max length : 50.0 cm SL 雄魚/尚未辨別雌雄; (Ref. 31256); 最大體重: 1.1 kg (Ref. 2915)
簡短描述
檢索表 | 型態特徵 | 形態測量圖
背棘 (總數) : 0; 背的軟條 (總數) : 63 - 82; 臀棘: 0; 臀鰭軟條: 16 - 20. Diagnosis: snout short, its length about 50% of the post-ocular length of the head (Ref. 28714), prominent, but not drawn out into a proboscis (Ref. 2915, 81274). Dorsal fin with 63-82 rays, beginning clearly in advance of pelvic fins; anal with 16-20 rays, its base comprised from 4.1 to 6.3 times in dorsal-fin base (Ref. 81274). Caudal peduncle relatively deep, its depth comprised 1.1-2.0 times in its length (Ref. 2915, 81274). 26-34 scales around caudal peduncle; ratio standard length/body depth: 4.2-6.2; upper jaw with 6-16, lower jaw with 10-22 teeth (Ref. 81274).
尾柄高的, 長度比的 1.1-2.0 長度。 4.2-6.2 SL/深度比; 銀色的顏色有時淺灰色或比較深色的, 背面淺灰色的黃色﹐綠色的或黑色的﹐腹部白色的﹐和白黃色或亮灰色的。
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). A fractional spawner (Ref. 10605; 10606).
具有電感受體佈滿整個頭與在身體的腹而背部區域上, 但是發電器官所在的體側與尾梗沒有出現.(參考文獻 10011) 一個少產的魚種 (參考文獻 10605; 10606)。
Life cycle and mating behavior
成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
非洲: 尼羅河與查德流域。 已知來自大的塞內加爾的 Sahelo- Soudanian 流域，甘比亞與佛塔河了; 也在單一， Geba ， Bandama ， Comoe 河 , 與 Ebrie 與 Aguien 潟湖中.(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)
IUCN 瀕危狀態 (Ref. 130435: Version 2024-2)
無危 (LC) ; Date assessed: 24 October 2019
人類使用
漁業: 商業性
工具
特別的報告
下載 XML
網路資源
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=0.01230 (0.00729 - 0.02077), b=2.82 (2.68 - 2.96), in cm total length, based on LWR estimates for this species & Genus-body shape (Ref.
93245).
營養階層 (Ref.
69278): 3.2 ±0.4 se; based on size and trophs of closest relatives
回復力 (Ref.
120179): 中等的, 族群倍增時間最少 1.4 - 4.4年 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Moderate vulnerability (44 of 100).
