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: Petrocephalus: Latin, petra = stone + Greek, kephale = head (Ref. 45335).
More on author: Sauvage.
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; 24°C - 28°C (Ref. 2059)
Africa: Guinea Bissau (Ref. 1880) to Angola (Ref. 11970). Widely distributed in the Congo River basin (Ref. 2970), in Central African Republic (45441), Cameroon (Ref. 51193), Democratic Republic of the Congo (Ref. 2970), Angola (Ref. 11970) and Zambia (Ref. 42135).
非洲: 賴比瑞亞到剛果。 記錄自 Luongo 河，尚比亞 (參考文獻 27609)了與從安哥拉.(參考文獻 11970)
大小 / 重量 / 年齡
Maturity: Lm ? range ? - ? cm
Max length : 12.0 cm TL 雄魚/尚未辨別雌雄; (Ref. 2059)
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) : 20 - 23; 臀棘: 0; 臀鰭軟條: 31 - 34.
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). Found schooling with other species having identical electric organ discharge (EOD) waveforms (Ref. 10460). A fractional spawner (Ref. 10605, 10606). Entomophagous (Ref. 51193).
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) 被發現與有同一的發電器放電 (EOD) 波形的其他的種聚集成群。 (參考文獻 10460) 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: 賴比瑞亞到剛果。 記錄自 Luongo 河，尚比亞 (參考文獻 27609)了與從安哥拉.(參考文獻 11970)
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. 130435: Version 2024-2)
無危 (LC) ; Date assessed: 17 March 2020
人類使用
漁業: 商業性
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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=0.01585 (0.00846 - 0.02968), b=2.89 (2.73 - 3.05), 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): 高度, 族群倍增時間少於 15個月 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
