HomeFish encyclopediaRay-finned fishesPerch-like fishSea basses: groupers and fairy bassletsJapanese perchlet Japanese perchlet (Plectranthias japonicus) Scientific name: Plectranthias japonicus Steindachner, 1883 The Japanese perchlet (Plectranthias japonicus) is a marine fish of the family Serranidae. Native range: Western Pacific, Japan to Australia. Also occurs in Indonesia which is a new record for the eastern Indian Ocean. BiologyInhabits deep trawling grounds to at least 200 m.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific namePlectranthias japonicusFamilySerranidae (Sea basses: groupers and fairy basslets)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length15.0Common length12.0Depth range200 m (656 ft)EnvironmentMarine; demersal; depth range ? - 200 mClimateDeep-waterDistributionWestern Pacific: Japan to Australia. Also occurs in Indonesia which is a new record for the eastern Indian Ocean.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessUsesFisheries: commercialResilienceHigh, minimum population doubling time less than 15 months (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