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Raiamas senegalensis (Steindachner, 1870)

Senegal minnow
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Image of Raiamas senegalensis (Senegal minnow)
Raiamas senegalensis
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Sudan (North) country information

Common names: Makembako, Mergan
Occurrence: native
Salinity: freshwater
Abundance: occasional (usually not seen) | Ref: Bailey, R.G., 1994
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: live export: yes;
Comments: Known from White Nile River (Ref. 28714), Blue Nile River (Ref. 28714) and Nile River to Lake Nubia [=Lake Nasser] (Ref. 28714).
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/su.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Bailey, R.G., 1994
National Database:

Common names from other countries

Classificação / Names Nomes comuns | Sinônimos | Catalog of Fishes(Gênero, Espécies) | ITIS | CoL | WoRMS | Cloffa

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

Environment: milieu / climate zone / depth range / distribution range Ecologia

; Água doce bentopelágico; potamódromo (Ref. 51243).   Tropical; 22°C - 26°C (Ref. 2059)

Distribuição Países | Áreas da FAO | Ecossistemas | Ocorrências | Point map | Introduções | 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).

Comprimento de primeira maturação / Tamanho / Peso / Idade

Maturity: Lm 10.0  range ? - ? cm
Max length : 24.5 cm TL macho/indeterminado; (Ref. 2801); peso máx. publicado: 60.00 g (Ref. 3799)

Descrição suscinta Chaves de identificação | Morfologia | Morfometria

Espinhos dorsais (total) : 0; Raios dorsais (total) : 11; Espinhos anais: 0; Raios anais : 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).

Biologia     Glossário (p.ex. epibenthic)

Ciclo de vida ou comportamento de acasalamento Maturities | Reprodução | Spawnings | Egg(s) | Fecundities | Larvas

Referência principal Upload your references | Referências | Coordenador | Colaboradores

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)

Status na Lista Vermelha da UICN (Ref. 130435)

  Segura ou pouco preocupante (LC) ; Date assessed: 20 October 2019

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Ameaça para os humanos

  Harmless




Uso pelos humanos

Pescarias: sem interesse
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Trophic ecology
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Estimates based on models

Índice de diversidade filogenética (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).
Nível Trófico (Ref. 69278):  3.4   ±0.4 se; based on size and trophs of closest relatives
Resiliência (Ref. 120179):  médio(a), tempo mínimo de duplicação da população 1,4 - 4,4 anos (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153):  Low vulnerability (15 of 100).