HomeFish encyclopediaRay-finned fishesPerch-like fishSnappersJapanese snapper Japanese snapper (Paracaesio caerulea) Scientific name: Paracaesio caerulea Katayama, 1934 The Japanese snapper (Paracaesio caerulea) is a marine fish of the family Lutjanidae. Native range: Western Pacific, known only from southern Japan. More recently reported from Taiwan and the Chesterfield Islands. BiologyDorsal spines (total): 10; Dorsal soft rays (total): 10; Anal spines: 3; Anal soft rays: 8. Eye large. Snout short, about equal to, or shorter than eye diameter. Interorbital space convex. Pectoral fins long reaching level of anus. Scale rows on back parallel to lateral line. Back and sides blue becoming whitish or silvery ventrally; the dorsal and caudal fins pale yellow; the other fins whitish or translucent.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameParacaesio caeruleaFamilyLutjanidae (Snappers)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length50.0Common length30.0EnvironmentMarine; demersalClimateSubtropicalDistributionWestern Pacific: known only from southern Japan. More recently reported from Taiwan and the Chesterfield Islands.Conservation status (IUCN)Data deficient (DD)Threat to humansHarmlessUsesFisheries: commercialResilienceMedium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.) SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026