分类 / Names
俗名 | 同种异名 | Catalog of Fishes(属, 种) | ITIS | CoL | WoRMS | Cloffa
Environment: milieu / climate zone / depth range / distribution range
生态学
; 淡水 居于水底的; 河川洄游 (Ref. 51243). 熱帶; 23°C - 26°C (Ref. 2060); 3°S - 27°S
East Africa: Rovuma River system including Niassa Reserve, and western confluences to Lake Malawi (Ref. 91771). Following a recent revision of the Petrocephalus catostoma complex (Ref. 91771), unambiquous evidence for the presence of this species in the Bangweulu-Mweru area (and consequently the Congo basin) is still lacking (Ref. 91772).
中非與南非: 非洲的向東流的河川。 廣泛分佈從庫內內河，奧塔萬戈河與三比河流域到澎哥洛河。 也在尚比亞剛果, 馬拉威湖與坦噶尼喀而且在肯亞向北至 Tana 河與維多利亞湖.(參考文獻 7248)
Length at first maturity / 大小 / 重量 / 年龄
Maturity: Lm ?, range 4 - ? cm
Max length : 15.0 cm FL 雄鱼/尚未辨别雌雄; (Ref. 5214)
背棘 (总数) : 0; 背的软条 (总数) : 18 - 22; 臀棘: 0; 臀鳍软条: 25 - 28.
Occurs in shallow and muddy waters, sheltered bays, in lagoons, and swampy areas; prefers quiet parts of rivers where there is abundant vegetation (Ref. 13337). Forms shoals (Ref. 13337) within quiet reaches of rivers and floodplains, and with other species with identical electric organ discharge (EOD) waveforms (Ref. 10460). Feeds on insects, found on river bed or in marginal vegetation (Ref. 12526), on insect larvae and other invertebrates at night (Ref. 5595). Known to undergo upriver migration (Ref. 13337, 10608) which may well be correlated with breeding (Ref. 13337). Breeds during the rainy season, possibly moving upstream to suitable sites (Ref. 10608). An unconfirmed report claims the males are territorial and build a nest (Ref. 7248). Caught in nets for food (5214). Oviparous (Ref. 205).
在舄湖 , 与沼泽的区域中,出现于水浅而泥泞的水域，掩蔽的海湾。 浅水型.(参考文献 13337) 偏爱河的安静部份在哪里有丰富的植物.(参考文献 13337) 大部份捕食昆虫幼生与其他的无脊椎动物在晚上。 (参考文献 5595) 河与洪泛区的安静范围里面的浅滩。 卵生的.(参考文献 205) 已知进行溯河回游那可能很好地是与繁殖有关的.(参考文献 13337) 在雨季期间进行繁殖,可能地移动溯河到适当的位置。 一个未被证实的报告要求那雄姓具有领域性而且建立一个巢.(参考文献 7248) 用同一的發電器放電 (EOD) 波形被發現與其他的種聚集成群。 (參考文獻 10460) 在網捕獲了作為食用魚。 (5214)
Life cycle and mating behavior
成熟度 | 繁殖 | 产卵场 | 卵 | 孕卵数 | 仔鱼
中非與南非: 非洲的向東流的河川。 廣泛分佈從庫內內河，奧塔萬戈河與三比河流域到澎哥洛河。 也在尚比亞剛果, 馬拉威湖與坦噶尼喀而且在肯亞向北至 Tana 河與維多利亞湖.(參考文獻 7248)
Kramer, B., R. Bills, P. Skelton and M. Wink, 2012. A critical revision of the churchill snoutfish, genus Petrocephalus Marcusen, 1854 (Actinopterygii: Teleostei: Mormyridae), from southern and eastern Africa, with the recognition of Petrocephalus tanensis, and the description of five new species. Journal of Natural History 46(35-36):2179-2258. (Ref. 91771)
世界自然保护联盟红皮书 (Ref. 130435: Version 2024-1)
人类利用
渔业: 自给性渔业; 水族馆: 商业性
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特别资料
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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=0.01349 (0.00743 - 0.02447), b=2.82 (2.67 - 2.97), in cm total length, based on LWR estimates for this species & Genus-body shape (Ref.
93245).
营养阶层 (Ref.
69278): 3.4 ±0.38 se; based on food items.
Generation time: 1.4 ( na - na) years. Estimated as median ln(3)/K based on 2
growth studies.
回复力 (Ref.
120179): 中等的, 族群倍增时间最少 1.4 - 4.4年 (Fec = 116).
Fishing Vulnerability (Ref.
59153): Low vulnerability (17 of 100).
