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Citharidium ansorgii Boulenger, 1902

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

Teleostei > Characiformes (Characins) > Citharinidae (Lutefishes)
Etymology: Citharidium: Latin, cithara = lire like instrument, diminutive (Ref. 45335).
Eponymy: Dr William John Ansorge (1850–1913) was an English explorer and collector who was active in Africa in the second half of the 19th century. [...] (Ref. 128868), visit book page.
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: found only in the Niger basin in Nigeria (Ref. 2938, 7095, 81281). Maps in Ref. 2938, 81281, Ref. 31256 and Ref. 51193 also mention presence in Bénué basin. Species has also been reported from Chad basin in Cameroon (Ref. 51193).
非洲: 發現在奈及利亞只在尼日河流域中。

大小 / 重量 / 年龄

Maturity: Lm ?  range ? - ? cm
Max length : 58.6 cm SL 雄鱼/尚未辨别雌雄; (Ref. 2938); 最大体重: 9.1 kg (Ref. 7095)

简单描述 检索表 | 型态特徵 | 形态测量图

背的软条 (总数) : 17 - 19; 臀鳍软条: 19 - 22. Diagnosis: snout longer than eye diameter; body depth 1.7-2.2x and head length 2.8-3.3x SL; caudal peduncle 0.8-0.9x long than deep; scale formula 12.5/46-51/14.5-16.5; 12.5 scales between lateral line and pelvic-fin base; characterized by ctenoid scales; scales without denticulations on posterior margin, but with parallel ridges prolonged as spines beyond posterior margin; short pectorals, half of head length; pelvic fins longer than pectorals, provided with scaly process at their bases; 17-19 dorsal fin branched rays; 19-22 anal fin branched rays (Ref. 2938, 81281).
体高 1.7-2.2 x, 头长 2.8-3.3 x SL。 尾柄 0.8-0.9 x 长的超过高度地。 吻长度超过眼直径。 短胸鳍, 一半的头长。 腹面长度超过胸鳍。 鳞片强烈地有小齿状突的。 淡黄色的身体有一些不规则的黑色点。 二条垂直的黑色-蓝色的斜纹: 一个来自背鳍起点到腹鳍起源; 另外一从脂鳍到臀鳍。 胸鳍黄色又其他的鳍黑色。

生物学特性     字汇 (例如 epibenthic)

Maximum TL was recorded at 69.7 cm (Ref. 7095).

单一种, 特徵为有栉鳞的鳞片。 最大体长TL记录为 69.7 公分。 (参考文献 7095)

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

非洲: 發現在奈及利亞只在尼日河流域中。

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

Gosse, J.-P., 1990. Citharinidae. p. 261-268. In C. Lévêque, D. Paugy and G.G. Teugels (eds.) Faune des poissons d'eaux douces et saumâtres de l'Afrique de l'Ouest. Tome I. Coll. Faune Tropicale n° XXVIII. Musée Royal de l'Afrique Centrale, Tervuren and O.R.S.T.O.M., Paris, 384 p. (Ref. 2938)

世界自然保护联盟红皮书 (Ref. 130435: Version 2024-2)

  数据缺失 (DD) ; Date assessed: 06 May 2019

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

对人类的威胁

  无害处的





人类利用

FAO - Publication: search | FishSource |

更多信息

Trophic ecology
食物相
食性组成
食物消耗量
Food rations
捕食者
Ecology
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入添量
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孕卵数
产卵场
Spawning aggregations

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网络资源

AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | BOLDSystems | Websites from users | 核实 FishWatcher | CISTI | Catalog of Fishes: , | DiscoverLife | ECOTOX | FAO - Publication: search | Faunafri | Fishipedia | Fishtrace | GenBank: 基因组, 核苷酸 | GloBI | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | 树状分类阶层 | Wikipedia: 转至, 搜寻 | World Records Freshwater Fishing | Zoobank | 动物学的记录

Estimates based on models

Phylogenetic diversity index (Ref. 82804):  PD50 = 1.0039   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01585 (0.00623 - 0.04034), b=2.96 (2.74 - 3.18), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
营养阶层 (Ref. 69278):  2.1   ±0.1 se; based on size and trophs of closest relatives
回复力 (Ref. 120179):  中等的, 族群倍增时间最少 1.4 - 4.4年 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153):  Moderate to high vulnerability (49 of 100).