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Distichodus engycephalus Günther, 1864

Perch
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drawing shows typical species in Distichodontidae.

Mali country information

Common names: [No common name]
Occurrence: native
Salinity: freshwater
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: live export: yes;
Comments: Present in Upper Niger and Inner Niger Delta (Ref. 2936, 86396). Also known from Upper Senegal (Ref. 86396).
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/ml.html
National Fisheries Authority: http://www.orleans.ird.fr/~pechedcn/
Occurrences: Occurrences Point map
Main Ref: Gosse, J.P., E.J. Coenen and G.G. Teugels, 2003
National Database:

Common names from other countries

Grass-eaters, Gbasra, 窄头复齿脂鲤, ... more

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

Teleostei > Characiformes (Characins) > Distichodontidae (Distichodus)
Etymology: Distichodus: Greek, di = two + Greek, stix, stichos = line, row (Ref. 45335).
  More on author: Günther.

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: present from Senegal to Cameroon, in Lake Chad basin and Nile River (Ref. 81638). Reported in the Senegal (Ref. 7094, 86396), Niger, Volta, Ogun, Chad (Ref. 2936, 86396), Cross (Ref. 2936, 7094, 81638, 86396) and Wouri (Ref. 2936, 7094) River basins.
非洲: 尼日 (Bamako 的下游) ，佛塔河， Ogun ，十字河，查德流域， Wouri 與尼羅河。 也已知來自塞內加爾。 (參考文獻 7094)

大小 / 重量 / 年龄

Maturity: Lm ?  range ? - ? cm
Max length : 40.0 cm SL 雄鱼/尚未辨别雌雄; (Ref. 2936); 最大体重: 1.5 kg (Ref. 3799)

简单描述 检索表 | 型态特徵 | 形态测量图

背棘 (总数) : 0; 背的软条 (总数) : 20 - 28; 臀棘: 0; 臀鳍软条: 13 - 17. Diagnosis: mouth inferior; body depth 2.6-3.4x and head length 4.0-5.4x SL; caudal peduncle length <= its depth; eye diameter 3.5 (juveniles)-5.7x head length; 11-12 scales between lateral line and scaly process at bases of pelvic fins; juveniles with numerous small, dark, eye-sized, spots on sides (Ref. 2936, 86396). No round humeral spot, no vertical bars (Ref. 81638). 73-86 (Ref. 81638) or 75-86 (Ref. 86396) lateral line scales. 14-16 (Ref. 81638) or 15.5-16.5 (Ref. 86396) scales between dorsal fin and lateral line. 20-28 (Ref. 81638) or 22-27 (Ref. 86396) total dorsal fin rays. 13-17 (Ref. 81638) or 13-16 (Ref. 86396) total anal fin rays.
体高 2.6-3.4 x, 头长 4-5.4 x SL。 尾柄长度 <= 它的高度。 圆吻。 眼直径 3.5(稚鱼)-5.7个 x 头长。 有鳞的尾鳍有非圆形的叶。 身体通常灰色的, 比较深色的在背面在腹面是颜色淡的。 眼的上面部分淡红的, 背部的有些有黑色的斑点。 在延伸至尾鳍的中央部份的尾柄幼鱼有一个黑色的斑点; 一个橘色的斑点在胸鳍的水平的侧联机跟随着一个黑色的斑点了; 侧边垂直地有黑色的瘦长斑点。

生物学特性     字汇 (例如 epibenthic)

Maximum TL was recorded at 50 cm; prefers flowing water over rocky bottoms (Ref. 7094). Feeds on vegetation and periphyton (Ref. 28714).

最大体长TL记录为 50 公分。 偏爱在岩石底部上的流动水。 (参考文献 7094) 吃植物与固着生物。 (参考文献 28714)

Life cycle and mating behavior Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 仔鱼

非洲: 尼日 (Bamako 的下游) ，佛塔河， Ogun ，十字河，查德流域， Wouri 與尼羅河。 也已知來自塞內加爾。 (參考文獻 7094)

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

Gosse, J.-P. and E.J. Coenen, 1990. Distichodontidae. p. 237-260. 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. 2936)

世界自然保护联盟红皮书 (Ref. 130435)

  最不相关 (LC) ; Date assessed: 20 October 2019

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

对人类的威胁

  无害处的




人类利用

渔业: 商业性
FAO(Publication : search) | FishSource |

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Estimates based on models

Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.02188 (0.00867 - 0.05518), b=3.03 (2.81 - 3.25), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
营养阶层 (Ref. 69278):  2.0   ±0.00 se; based on food items.
Fishing Vulnerability (Ref. 59153):  Moderate vulnerability (39 of 100).
价格分类 (Ref. 80766):   Unknown.