Environment: milieu / climate zone / depth range / distribution range
Ecologia
; Água doce demersal. Tropical
Africa: limited to the coastal basins of Guinea, Sierra Leone and Liberia (Ref. 2940, 81282). Also reported from Nipoué River, Côte d'Ivoire (Ref. 272, 2940).
Tamanho / Peso / Idade
Maturity: Lm ?  range ? - ? cm
Max length : 12.5 cm SL macho/indeterminado; (Ref. 2801)
Raios dorsais (total) : 10 - 11; Raios anais : 13 - 15. Diagnosis: body depth 3.8-4.8x and head length 3.5-4.0x SL; eye diameter 2.8-3.8x head length; scale formula 7.5/39-43/4.5; 7.5 scales between lateral line and dorsal fin origin; 39-43 scales in longitudinal series; 14 scales around caudal peduncle; 8 dorsal-fin branched rays; 10-12 anal-fin branched rays (Ref. 2940, 81282).
Affinities: meristic characters close to R. nigeriensis (with more number of branched rays; shorter head length and mouth). Maximum TL was recorded at 15.5 cm (Ref. 2801).
Ciclo de vida ou comportamento de acasalamento
Maturities | Reprodução | Spawnings | Egg(s) | Fecundities | Larvas
Lévêque, C., 2003. Cyprinidae. p. 322-436. In D. Paugy, C. Lévêque and G.G Teugels (eds.) The fresh and brackish water fishes of West Africa Volume 1. Coll. faune et flore tropicales 40. Institut de recherche de développement, Paris, France, Muséum national d'histoire naturelle, Paris, France and Musée royal de l'Afrique Central, Tervuren, Belgium, 457p. (Ref. 81282)
Status na Lista Vermelha da UICN (Ref. 130435)
Ameaça para os humanos
Harmless
Uso pelos humanos
Ferramentas
Relatórios especiais
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Fontes da internet
Estimates based on models
Índice de diversidade filogenética (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00589 (0.00282 - 0.01229), b=3.02 (2.84 - 3.20), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Nível Trófico (Ref.
69278): 3.3 ±0.4 se; based on size and trophs of closest relatives
Resiliência (Ref.
120179): Elevada, tempo mínimo de duplicação da população menor que 15 meses (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).