You can sponsor this page

Gnathonemus petersii  (Günther, 1862)

Elephantnose fish
上傳你的 相片 和 影像
Pictures | Google 影像
Image of Gnathonemus petersii (Elephantnose fish)
Gnathonemus petersii
Picture by Moreau, J.

分類 / Names 俗名 | 同種異名 | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

Actinopterygii 輻鰭魚綱 (條鰭魚) > Osteoglossiformes (Bony tongues) > Mormyridae (Elephantfishes)
Etymology: Gnathonemus: Greek, gnathos = jaw + Greek, nema = filament (Ref. 45335).

環境 / 氣候 / 範圍 生態學

; 淡水 居於水底的; pH range: 6.0 - 8.0; dH range: 5 - 19.    22°C - 28°C (Ref. 1672), preferred ?

分布 國家 | FAO區域 | 生態系 | 發現紀錄 | Point map | 簡介 | Faunafri

Africa: Niger to Congo River basins (Ref. 3203). Widespread in the Congo basin (Ref. 1878, 4910, 11970, 41580, 41591, 106245, 106290). Also reported from the Cuanza in Angola (Ref. 99599) and Lake Tanganyika (Ref. 114071). Report from Lake Kivu questionable and probably erroneous (Ref. 51936).

大小 / 重量 / 年齡

Maturity: Lm ?  range ? - ? cm
Max length : 35.0 cm SL 雄魚/尚未辨別雌雄; (Ref. 2915)

簡短描述 型態特徵 | 形態測量圖

背棘 (總數): 0; 背的軟條 (總數): 25-31; 臀棘 0; 臀鰭軟條: 32 - 36

生物學特性     字彙 (例如 epibenthic)

Occurs close to the bottom where it probes for food with the long snout. Territorial and usually aggressive towards members of its own species. This behavior has been shown to involve electric organ discharge (EOD) activity (Ref. 10011). Feeds mostly at night on worms and insects (Ref. 7020), probably aided by electro-sensory inputs (Ref. 10011). Electroreceptors are distributed over the entire head, the dorsal and ventral regions of the body, but absent from the side and the caudal peduncle where the electric organ is located (Ref. 10011). Sex-related EOD characteristics in this species has been demonstrated in the laboratory with freshly imported samples during the breeding season; such EOD dimorphism changed with time in captivity (Ref. 10764; 10766). Lead nitrate in water significantly increased EOD rate and selectively altered the EOD waveform of this species (Ref. 10469). Dubbed a `hearing specialist' having auditory abilities in the range of 100-2500 Hz, with `best frequencies' between 300 and 600 Hz (Ref. 10830). Aquarium keeping: in groups of 5 or more individuals; minimum aquarium size 150 cm; not recommended for home aquariums (Ref. 51539).

Life cycle and mating behavior 成熟度 | 繁殖 | 產卵場 | | 孕卵數 | 仔魚


主要參考資料 Upload your references | 參考文獻 | 合作者 | 合作者

Gosse, J.-P., 1984. Mormyridae. p. 63-122. 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. 3203)

IUCN 瀕危狀態 (Ref. 115185)

CITES (Ref. 94142)

Not Evaluated

對人類具威脅

 




人類使用

漁業: 自給性漁業; 水族館: 商業性
FAO(Publication : search) | FisheriesWiki | 周邊海洋

更多資訊

俗名
同種異名
新陳代謝
捕食者
生態毒物學
繁殖
成熟度
產卵場
孕卵數

卵發育
年龄/大小
成長
長度-重量
長度-長度
長度-頻率
形態測量圖
型態特徵
仔魚
稚魚動力學
入添量
豐度
參考文獻
養殖
養殖資訊
品種
遺傳學
基因序列
遺傳率
疾病
加工
Mass conversion
合作者
照片
Stamps, Coins
聲音
神經毒
速度
泳型
鰓區
Otoliths
腦重體重比
眼睛色素

工具

特別的報告

下載 XML

網路資源