HomeFish encyclopediaRay-finned fishesPerch-like fishMackerels, tunas, bonitosJapanese Spanish mackerel Japanese Spanish mackerel (Scomberomorus niphonius) Scientific name: Scomberomorus niphonius Cuvier, 1832 The Japanese Spanish mackerel (Scomberomorus niphonius) is a marine fish of the family Scombridae. BiologyDorsal spines (total): 19 - 21; Dorsal soft rays (total): 15-19; Anal soft rays: 16 - 20; Vertebrae: 48 - 50. Interpelvic process small and bifid. Lateral line gradually curving down toward caudal peduncle. The only species in the genus with a straight intestine. Swim bladder absent. Body covered with small scales. Anterior quarter of first dorsal fin and a narrow distal margin of the rest of the dorsal fin black. Sides with seven or more rows of longitudinal spots on the sides; some spots connected together.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameScomberomorus niphoniusFamilyScombridae (Mackerels, tunas, bonitos)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length100.0Depth range0–200 m (0–656 ft)EnvironmentMarine; pelagic-neritic; oceanodromous; depth range 0 - 200 mClimateTemperateDistributionNorthwest Pacific: confined to the subtropical and temperate waters of China, the Yellow Sea and Sea of Japan north to Vladivostok, former USSR. Often confused with Scomberomorus munroi.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessUsesFisheries: highly commercial; aquaculture: commercial; gamefish: yesResilienceHigh, minimum population doubling time less than 15 months (K=0.7; Fec>100,000) SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026