HomeFish encyclopediaRay-finned fishesMulletsMulletsRobust mullet Robust mullet (Valamugil robustus) Scientific name: Valamugil robustus G?nther, 1861 The Robust mullet (Valamugil robustus) is a freshwater fish of the family Mugilidae. Native range: Western Indian Ocean, Inhambane, Mozambique to Transkei, South Africa; also Madagascar. BiologyDorsal spines (total): 5; Dorsal soft rays (total): 8; Anal spines: 3; Anal soft rays: 9. Silvery in color, dusky above, sometimes with a golden opercular spot; faint stripes along scale rows; pectoral fins with an axillary spot.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameValamugil robustusFamilyMugilidae (Mullets)OrderMugiliformes (Mullets)ClassActinopterygii (Ray-finned fishes)Maximum length30.0EnvironmentMarine; freshwater; brackish; pelagic-neritic; catadromousClimateTropicalDistributionWestern Indian Ocean: Inhambane, Mozambique to Transkei, South Africa; also Madagascar.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessUsesFisheries: commercialResilienceMedium, minimum population doubling time 1.4 - 4.4 years (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