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> Cypriniformes (Carps) > Danionidae (Danios) > Chedrinae

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

; agua dulce demersal; potamodromo (Ref. 51243). Tropical; 24°C - 26°C (Ref. 12468)

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Africa: mainly in Niger and Bénoué basins (Ref. 2940, 81282), but also in Moa, Cavally, Sassandra, Bandama, and Comoé Rivers (Côte d'Ivoire), Pra River (Ghana) and Cross River (Nigeria, Cameroon) (Ref. 2940, 81282, 81639).

Tamaño / Peso / Age

Maturity: L_m ? range ? - ? cm
Max length : 11.1 cm SL macho / no sexado; (Ref. 81639)

Short description Claves de identificación | Morfología | Morfometría

Espinas dorsales (total) : 0; Radios blandos dorsales (total) : 11; Espinas anales: 0; Radios blandos anales: 16 - 18. Diagnosis: body depth 3.5-5.3x and head length 4.2-5.1x SL; eye diameter 2.8-3.5x head length (Ref. 2940, 81282). Scale formula: 7.5-8.5/41-46/(3.5)4.5(5.5); 14 scales around caudal peduncle; 8 dorsal-fin branched rays; 13-15 anal-fin branched rays (Ref. 2940, 81282, 81639).

Affinities: may be sympatric with R. senegalensis and R. steindachneri and has always been mistaken for R. senegalensis, which is the reason for it not being discovered. Maximum TL was recorded at 12.5 cm (Ref. 2801).

Life cycle and mating behavior Madurez | Reproducción | Puesta | Huevos | Fecundidad | Larva

Main reference Upload your references | Referencias | Coordinador | 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)

IUCN Red List Status (Ref. 130435: Version 2024-1)

Least Concern (LC) ; Date assessed: 11 May 2019

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

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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=0.00617 (0.00294 - 0.01293), b=2.99 (2.81 - 3.17), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).

Nivel trófico (Ref. 69278): 3.3 ±0.4 se; based on size and trophs of closest relatives

Resiliencia (Ref. 120179): Alto, población duplicada en un tiempo mínimo inferior a 15 meses (Preliminary K or Fecundity.).

Fishing Vulnerability (Ref. 59153): Low vulnerability (10 of 100).

Raiamas nigeriensis (Daget, 1959)