HomeFish encyclopediaRay-finned fishesPerch-like fishPorgiesSeventyfour seabream Seventyfour seabream (Polysteganus undulosus) Scientific name: Polysteganus undulosus Regan, 1908 The Seventyfour seabream (Polysteganus undulosus) is a marine fish of the family Sparidae. Native range: Western Indian Ocean, southern Mozambique to Durban, South Africa. BiologyDorsal spines (total): 12; Dorsal soft rays (total): 10; Anal spines: 3; Anal soft rays: 8 - 9Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific namePolysteganus undulosusFamilySparidae (Porgies)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length120Common length80.0Depth range30 m (98 ft)EnvironmentMarine; reef-associated; oceanodromous; depth range 30 - ? mClimateSubtropicalDistributionWestern Indian Ocean: southern Mozambique to Durban, South Africa.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessUsesFisheries: minor commercial; gamefish: yesResilienceMedium, minimum population doubling time 1.4 - 4.4 years (K=0.18-0.28) SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026