HomeFish encyclopediaRay-finned fishesPerch-like fishThreadfin breams, Whiptail breamsJapanese threadfin bream Japanese threadfin bream (Nemipterus japonicus) Scientific name: Nemipterus japonicus Bloch, 1791 The Japanese threadfin bream (Nemipterus japonicus) is a marine fish of the family Nemipteridae. BiologyVery abundant in coastal waters, found on mud or sand bottoms, usually in schools. Feeds mainly on small fishes, crustaceans, mollusks (mainly cephalopods), polychaetes and echinoderms. Marketed mainly fresh, but also frozen, steamed, dried-salted, dry-smoked, fermented or made into fish balls and fish meal.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameNemipterus japonicusFamilyNemipteridae (Threadfin breams, Whiptail breams)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length32.0Common length25.0Depth range5–80 m (16–262 ft)EnvironmentMarine; demersal; non-migratory; depth range 5 - 80 mClimateTropicalDistributionIndo-Pacific. A report on Nemipterus japonicus as a Red Sea immigrant into the Mediterranean is unconfirmed, however it has recently (2005) been reported from Haifa Bay. Likewise, a record of this species from northwestern Australia is unfounded.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessUsesFisheries: commercialResilienceMedium, minimum population doubling time 1.4 - 4.4 years (K=0.29-1.06; tm= 0.5-1.4; tmax=8; Fec = 13,900) SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026