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Raiamas senegalensis (Steindachner, 1870)

Senegal minnow
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Raiamas senegalensis
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Benin country information

Common names: [No common name]
Occurrence: native
Salinity: freshwater
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: live export: yes;
Comments: Known from the Ouémé and Volta (Ref. 2940, 13331, 81282).
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/bn.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Lévêque, C., 2003
National Database:

Common names from other countries

分類 / Names 俗名 | 同種異名 | Catalog of Fishes(, ) | ITIS | CoL | WoRMS | Cloffa

Teleostei > Cypriniformes (Carps) > Danionidae (Danios) > Chedrinae
Etymology:   More on author: Steindachner.

Environment: milieu / climate zone / depth range / distribution range 生態學

; 淡水 底中水層性; 河川洄游 (Ref. 51243).   熱帶; 22°C - 26°C (Ref. 2059)

分布 國家 | FAO區域 | 生態系 | 發現紀錄 | Point map | 簡介 | Faunafri

Africa: basins of the Nile, Chad, Niger, Gambia, Senegal, Volta and coastal basins of Sassandra, Bandama, Comoé, Tano, Pra, Ouémé, Ogun and Sanaga, which seems to represent its southern distributional limit (Ref. 2940, 81282). Also known from the Cross River in Cameroon (Ref. 81639).
非洲: 尼羅河,查德,尼日, Gambie ,塞內加爾的流域, 佛塔河與薩桑德拉河, Bandama , Comoe , Tano , Pra , Oueme , Ogun 與沙那加河的海岸流域。 也許記錄當 洛氏長嘴鱲〔Raiamas loati〕 因為這兩個是替代的形式而且可能不是真正完全明顯的。

Length at first maturity / 大小 / 重量 / 年齡

Maturity: Lm 10.0  range ? - ? cm
Max length : 24.5 cm TL 雄魚/尚未辨別雌雄; (Ref. 2801); 最大體重: 60.00 g (Ref. 3799)

簡短描述 檢索表 | 型態特徵 | 形態測量圖

背棘 (總數) : 0; 背的軟條 (總數) : 11; 臀棘: 0; 臀鰭軟條: 16 - 18. Diagnosis: body depth 3.9-6.2x and head length 3.4-4.7x SL; eye diameter 3.1-4.9x head length (Ref. 2940, 81282). Scale formula 9.5-11.5/48-64/4.5-6.5; 14-16 scales around caudal peduncle; 8 dorsal-fin branched rays; 13-15 anal-fin branched rays (Ref. 2940, 81282, 81639). Usually less than 15 vertical bars on sides; known from the large Nilo-Sudanese basins (Ref. 2940, 81282). Round spot on caudal peduncle (Ref. 81639).
叉型尾鰭有對稱的尖葉。 銀色的身體有呈綠色的背面。 橘色的鰭。 12- 從前面到身體的背面漸進地減少的 15條垂直的黑色橫帶。 在身體的前部可能有比較小的閏斑點或橫帶。 背部的: 3 單一的,8個分枝。 肛門的: 3 單一的,13-15個分枝。

生物學特性     字彙 (例如 epibenthic)


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

非洲: 尼羅河,查德,尼日, Gambie ,塞內加爾的流域, 佛塔河與薩桑德拉河, Bandama , Comoe , Tano , Pra , Oueme , Ogun 與沙那加河的海岸流域。 也許記錄當 洛氏長嘴鱲〔Raiamas loati〕 因為這兩個是替代的形式而且可能不是真正完全明顯的。

主要參考資料 Upload your references | 參考文獻 | 合作者 | 合作者

Lévêque, C., 1990. Cyprinidae. p. 269-361. In C. Lévêque, D. Paugy and G.G. Teugels (eds.) Faune des poissons d'eaux douces et saumâtres d'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. 2940)

IUCN 瀕危狀態 (Ref. 130435)

  無危 (LC) ; Date assessed: 20 October 2019

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

對人類具威脅

  無害處的




人類使用

漁業: 沒有興趣
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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=0.00741 (0.00468 - 0.01175), b=3.10 (2.97 - 3.23), in cm Total Length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245).
營養階層 (Ref. 69278):  3.4   ±0.4 se; based on size and trophs of closest relatives
回復力 (Ref. 120179):  中等的, 族群倍增時間最少 1.4 - 4.4年 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153):  Low vulnerability (15 of 100).