HomeFish encyclopediaRay-finned fishesPerch-like fishMackerels, tunas, bonitosIndo-Pacific king mackerel Indo-Pacific king mackerel (Scomberomorus guttatus) Scientific name: Scomberomorus guttatus Bloch & Schneider, 1801 The Indo-Pacific king mackerel (Scomberomorus guttatus) is a brackish-water fish of the family Scombridae. Native range: Indo-West Pacific, Persian Gulf, India and Sri Lanka to southeast Asia, north to Hong Kong and Wakasa Bay, Sea of Japan. BiologyA pelagic migratory fish inhabiting coastal waters at depths between 15-200 m; sometimes entering turbid estuarine waters; usually found in small schools. Feeds mainly on small schooling fishes (especially sardines and anchovies), squids and crustaceans. Fishing peaks in the months of November and December in Eastern Thailand, late Dec and January in the northern part of the Gulf and January to March in its western part. Caught with midwater trawls, purse seines, bamboo stake traps, and by trolling. Marketed mainly fresh; also dried-salted, smoked and frozen. Small quantities of frozen product are exported to Europe and North America.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameScomberomorus guttatusFamilyScombridae (Mackerels, tunas, bonitos)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length76.0Common length55.0Depth range15–200 m (49–656 ft)EnvironmentMarine; brackish; pelagic-neritic; oceanodromous; depth range 15 - 200 m, usually 20 - 90 mClimateTropicalDistributionIndo-West Pacific: Persian Gulf, India and Sri Lanka to southeast Asia, north to Hong Kong and Wakasa Bay, Sea of Japan.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessUsesFisheries: highly commercial; gamefish: yesResilienceMedium, minimum population doubling time 1.4 - 4.4 years (K=0.18; Fec=385,000) SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026