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Labeobarbus nedgia Rüppell, 1835

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Labeobarbus nedgia
Picture by Nagelkerke, L.


Ethiopia country information

Common names: Nech asa
Occurrence: endemic
Salinity: freshwater
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: Known from Lake Tana and its tributaries (Ref. 31686, 35835, 96382, 128753), part of the Abay basin (Ref. 58460). Also known from another lake and several rivers in the Ethiopian region, probably due to dispersion (Ref. 35835).
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/et.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Nagelkerke, L.A.J. and F.A. Sibbing, 1997
National Database:

Common names from other countries

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

Teleostei > Cypriniformes (Carps) > Cyprinidae (Minnows or carps) > Torinae
Etymology:   More on author: Rüppell.

Issue
The species Barbus degeni Boulenger, 1902 is considered a synonym of Labeobarbus intermedius (Rüppell, 1835) in Eschmeyer (CofF ver. May 2011: Ref. 86870). It is treated here a synonym of Labeobarbus nedgia Rüppell, 1835 according to Nagelkerke & Sibbing (1997: Ref. 35835).

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

; 淡水 底中水层性; 深度上下限 1 - 6 m (Ref. 35835).   熱帶

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

Africa: Lake Tana and its tributaries, Ethiopia (Ref. 35835, 96382, 128753); also known from another lake and several rivers in the Ethiopian region (Ref. 35835, 96382).
非洲: 在衣索比亞的塔那湖與其他的位置。

大小 / 重量 / 年龄

Maturity: Lm ?  range ? - ? cm
Max length : 70.7 cm FL 雄鱼/尚未辨别雌雄; (Ref. 35835)

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) : 11 - 13; 臀棘: 0; 臀鳍软条: 8. Lower lip forming a distinct median lobe; upper lip well developed, often with a median fleshy lobe; if lobes are absent, often a fleshy 'nose' is present; operculum depth about as large as ventral cheek length; head length less than 1.2 times in body depth.
形成一个的下唇明显的中央叶; 上嘴唇发展良好的,时常具有一个中央的肉质叶; 如果叶缺席, 时常一肉质的 '鼻子' 存在; 鳃盖深度大约与腹的颊长度一样大; 头长少于 1.2个倍体高。

生物学特性     字汇 (例如 epibenthic)

Occurs especially over rocky substrates in water of no more than 6 m depth. Is a macro-benthivore: specimens smaller than 15 cm FL mainly eat insect larvae, but switch to a more diverse diet when their size increases: adult insects, mollusks and detritus become more important; large specimens are the only barbs in Lake Tana that eat freshwater crabs of the genus Potamonautes; and also eat some fish (Ref. 35835).

生存在没有超过 6 公尺深的水尤其在岩石的底部之上。 是一个大型底部觅食者: 比 15 公分 FL 小的标本主要地吃昆虫幼生, 但是当他们的大小增加的时候转变成一个比较不同的食性: 昆虫成虫, 软件动物与碎屑变得更重要的; 大的标本在吃本属 Potamonautes 的淡水螃蟹的塔那湖是唯一的鲤鱼; 以及吃一些鱼.(参考文献 35835)

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

非洲: 在衣索比亞的塔那湖與其他的位置。

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

Nagelkerke, L.A.J. and F.A. Sibbing, 1997. A revision of the large barbs (Barbus spp., Cyprinidae, Teleostei) of Lake Tana, Ethiopia, with a description of seven new species. p. 105-170. In L.A.J. Nagelkerke (ed.) The barbs of Lake Tana, Ethiopia: morphological diversity and its implications for taxonomy, trophic resource partititioning and fisheries. Wageningen University, The Netherlands. (Ref. 35835)

世界自然保护联盟红皮书 (Ref. 130435)

  最不相关 (LC) ; Date assessed: 01 May 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

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=0.00933 (0.00422 - 0.02065), b=3.01 (2.82 - 3.20), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
营养阶层 (Ref. 69278):  3.3   ±0.50 se; based on food items.
回复力 (Ref. 120179):  低的, 最小族群倍增时间4.5 - 14 年 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153):  Moderate to high vulnerability (51 of 100).