HomeFish encyclopediaRay-finned fishesPerch-like fishPorgiesBlackhead seabream Blackhead seabream (Acanthopagrus schlegelii schlegelii) Scientific name: Acanthopagrus schlegelii schlegelii Bleeker, 1854 The Blackhead seabream (Acanthopagrus schlegelii schlegelii) is a brackish-water fish of the family Sparidae. BiologyFound in bays, shallow rocky reefs, and in brackish waters. Feeds on mollusks and polychaetes. Spawns in the spring and summer months.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameAcanthopagrus schlegelii schlegeliiFamilySparidae (Porgies)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length50.0Depth range15 m (49 ft)EnvironmentMarine; brackish; demersal; depth range 15 - ? mClimateSubtropicalDistributionNorthwest Pacific: southern Hokkaido, Japan to the southern Korean Peninsula, middle and north coast of the Republic of China and Taiwan. Not occurring in the Ryukyu Islands.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessUsesFisheries: commercial; aquaculture: commercial; gamefish: yesResilienceMedium, minimum population doubling time 1.4 - 4.4 years (tm=2) SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026