HomeFish encyclopediaRay-finned fishesPerch-like fishGoatfishesBensasi goatfish Bensasi goatfish (Upeneus japonicus) Scientific name: Upeneus japonicus Houttuyn, 1782 The Bensasi goatfish (Upeneus japonicus) is a marine fish of the family Mullidae. BiologyDorsal spines (total): 7. Differs from other Upeneus with 7-spined dorsal fin in generally having14 pectoral fin rays; 7 + 18 gill rakers; 29 - 30 + 2 lateral line scales; teeth on ectopterygoid present; and, dark brown or black peritoneum.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameUpeneus japonicusFamilyMullidae (Goatfishes)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length15.7Common length20.0Depth range20–200 m (66–656 ft)EnvironmentMarine; reef-associated; depth range 20 - 200 mClimateSubtropicalDistributionWestern Pacific: Japan as far north as Hokkaido and Korea south to Taiwan and Hong Kong. Records from more southern areas are probably mainly misidentifications of Upeneus guttatus (Day) or Upeneus sundaicus (Bleeker).Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessUsesFisheries: minor commercialResilienceHigh, minimum population doubling time less than 15 months (K=0.6) SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026