Environment: milieu / climate zone / depth range / distribution range
Ekologi
; sötvatten bottenlevande. 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).
Size / Vikt / Age
Maturity: Lm ?  range ? - ? cm
Max length : 12.5 cm SL hane/ej könsbestämd; (Ref. 2801)
Mjukstrålar i ryggfenan (totalt) : 10 - 11; Mjukstrålar i analfenan: 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).
Life cycle and mating behavior
Maturities | Reproduktion | Spawnings | Egg(s) | Fecundities | Larver
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)
IUCN Red List Status (Ref. 130435)
Threat to humans
Harmless
Human uses
Verktyg
Special reports
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Estimates based on models
Phylogenetic diversity index (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).
Trofisk nivå (Ref.
69278): 3.3 ±0.4 se; based on size and trophs of closest relatives
Resiliens (Ref.
120179): Hög, lägsta populationsfördubblingstid mindre än 15 månader (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).