HomeFish encyclopediaRay-finned fishesPerch-like fishEmperors or scavengersChinese emperor Chinese emperor (Lethrinus haematopterus) Scientific name: Lethrinus haematopterus Temminck & Schlegel, 1844 The Chinese emperor (Lethrinus haematopterus) is a marine fish of the family Lethrinidae. Native range: Northwest Pacific, restricted to waters around southern China and southern Japan. Species factsScientific nameLethrinus haematopterusFamilyLethrinidae (Emperors or scavengers)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length45.0EnvironmentMarine; reef-associated; non-migratoryClimateSubtropicalDistributionNorthwest Pacific: restricted to waters around southern China and southern Japan.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessUsesFisheries: minor commercial; aquaculture: 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