HomeFish encyclopediaRay-finned fishesCarpsMinnows or carpsSlender barb Slender barb (Barbus unitaeniatus) Scientific name: Barbus unitaeniatus G?nther, 1866 The Slender barb (Barbus unitaeniatus) is a freshwater fish of the family Cyprinidae. BiologyDorsal spines (total): 3; Dorsal soft rays (total): 8; Anal spines: 3; Anal soft rays: 5 - 6Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameBarbus unitaeniatusFamilyCyprinidae (Minnows or carps)OrderCypriniformes (Carps)ClassActinopterygii (Ray-finned fishes)Maximum length14.0EnvironmentFreshwater; benthopelagicClimateTropicalDistributionAfrica: Widespread in southern Africa from the Zambian Congo system and the Cunene, Okavango, and Zambezi south to the Phongolo. Absent from lower Zambezi, Buzi, Pungwe, and Save systems.Conservation status (IUCN)Least Concern (LC)Threat to humansHarmlessUsesFisheries: minor commercial; aquarium: commercialResilienceHigh, minimum population doubling time less than 15 months (Preliminary K or Fecundity.) SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026