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Polypterus weeksii Boulenger, 1898

Mottled bichir
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Polypterus weeksii
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Congo (Kinshasa) country information

Common names: Mokoi
Occurrence: native
Salinity: freshwater
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: live export: yes;
Comments: Known from Pool Malebo (Ref. 41585, 44796, 44842, 44985, 45486), the middle Congo River (Ref. 4910, 42907), Kasai (Ref. 42907), Ubangi (Ref. 41590, 45441), Uélé (Ref. 42907), Ruki (Ref. 42907, 93897) and Itimbiri (Ref. 106290). Type-locality of holotype of Polypterus weeksii: 'Monsembe, Upper Congo' (Ref. 3188, 45628). Type-locality of holotype of Polypterus schoutedeni: 'Fl. Congo à Mongende (Congo belge)' (Ref. 3188, 49956). Also Ref. 1878, 1879, 3188, 4537, 41591, 42033, 42855.
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/cg.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Poll, M., 1941
National Database:

Common names from other countries

Raitaniilinhauki, Bichir weeksův, 魏氏多鳍鱼, ... more

分类 / Names 俗名 | 同种异名 | Catalog of Fishes(属, 种) | ITIS | CoL | WoRMS | Cloffa

Cladistii > Polypteriformes (Bichirs) > Polypteridae (Bichirs)
Etymology: Polypterus: Greek, poly = a lot of + Greek, pteron = wing, fin (Ref. 45335);  weeksii: Named after Dr. Schouteden, collector of the type-specimens (Ref. 41591, Ref. 49956).
  More on author: Boulenger.

Environment: milieu / climate zone / depth range / distribution range 生态学

; 淡水 居于水底的.   熱帶

分布 国家 | FAO区域 | 生态系 | 标本纪录 | Point map | 简介 | Faunafri

Africa: middle Congo River basin (Ref. 3188) in Republic of Congo (Ref. 44840) and Democratic Republic of the Congo (Ref. 42907).
非洲: 剛果河的中央流域.(參考文獻 3188)

大小 / 重量 / 年龄

Maturity: Lm ?  range ? - ? cm
Max length : 54.0 cm TL 雄鱼/尚未辨别雌雄; (Ref. 3188)

简单描述 型态特徵 | 形态测量图

背棘 (总数): 9 - 11; 臀棘 10-14. Body more or less compressed (Ref. 42873, Ref. 42901, Ref. 42907). Body depth 6.5 to 9.5 times in standard length; head length 4.25 to 5.5 times in standard length (Ref. 42907). Upper jaw slightly prominent or of equal length with lower jaw (Ref. 1878, Ref. 42907). Number of dorsal finlets: 9-11 (Ref. 42908, Ref. 51884). Number of branched dorsal and caudal rays: 15 (Ref. 49956). Pectoral fin not reaching dorsal fin origin (Ref. 42873, Ref. 45628). Ganoid scales (Ref. 42904): 57-65 lateral line scales, 44-48 scales around body, 20-26 predorsal scales (Ref. 42908, Ref. 44840, Ref. 44985). Dorsal side olive-green to gray colored, ventral side yellowish; 7 or 8 blackish bars bifurcating on the lower parts of the flanks (Ref. 1878, Ref. 4904, Ref. 44985). Fins are spotted, marbled, or irregularly barred with black (Ref. 4904).
身体约略扁长形的.(参考文献 42873, 参考文献 42901, 参考文献 42907) 体高 6.5 到 9.5 倍标准的长度; 头长 4.25 到 5.5 倍标准的长度.(参考文献 42907) 上颌些微突出或与下颌长度相等.(参考文献 1878, 参考文献 42907) 背部离鳍的数字: 9-11.(参考文献 42908, 参考文献 51884) 分枝背鳍与尾鳍鳍条的数字: 15.(参考文献 49956) 胸鳍不延伸到背鳍起点。 (参考文献 42873, 参考文献 45628) 硬鳞:(参考文献 42904) 57-65个侧线鳞片, 身体的周围 44-48个鳞片,20-26个前背的鳞片.(参考文献 42908, 参考文献 44840, 参考文献 44985) 背部两侧橄榄绿色的到灰色的, 腹的旁淡黄色的; 7 或 8条黑色的横带在侧面的下面部份上分叉.(参考文献 1878, 参考文献 4904, 参考文献 44985) 鳍是有斑点的,有大理石花纹, 或有黑色不规则条纹。 (参考文献 4904)

生物学特性     字汇 (例如 epibenthic)

Facultative air-breathing (Ref. 126274)

Life cycle and mating behavior 成熟度 | 繁殖 | 产卵场 | 卵 | 孕卵数 | 仔鱼

非洲: 剛果河的中央流域.(參考文獻 3188)

主要参考文献 Upload your references | 参考文献 | 合作者 | 合作者

Gosse, J.-P., 1984. Polypteridae. p. 18-29. In J. Daget, J.-P. Gosse and D.F.E. Thys van den Audenaerde (eds.) Check-list of the freshwater fishes of Africa (CLOFFA). Volume I. ORSTOM, Paris and MRAC, Tervuren. 410 p. (Ref. 3188)

世界自然保护联盟红皮书 (Ref. 130435)

  最不相关 (LC) ; Date assessed: 16 February 2009

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

对人类的威胁

  无害处的




人类利用

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Estimates based on models

Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5002   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00457 (0.00195 - 0.01073), b=3.05 (2.85 - 3.25), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
营养阶层 (Ref. 69278):  3.3   ±0.5 se; based on size and trophs of closest relatives
回复力 (Ref. 120179):  高度, 族群倍增时间少于 15个月 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153):  Moderate vulnerability (42 of 100).