HomeFish encyclopediaRay-finned fishesPerch-like fishSea basses: groupers and fairy bassletsDuskytail grouper Duskytail grouper (Epinephelus bleekeri) Scientific name: Epinephelus bleekeri Vaillant, 1878 The Duskytail grouper (Epinephelus bleekeri) is a marine fish of the family Serranidae. BiologyOccurs on shallow banks, but is not known from well-developed coral reefs. Benthic. In Hong Kong live fish markets. Usually taken by trawling in 30-45 m or by hand-lining over rocky banks; not found from coral reefs.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameEpinephelus bleekeriFamilySerranidae (Sea basses: groupers and fairy basslets)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length76.0Depth range30–104 m (98–341 ft)EnvironmentMarine; demersal; depth range 30 - 104 mClimateTropicalDistributionIndo-West Pacific: Persian Gulf to Taiwan, Indonesia and the northern coast of Australia. Not known from Japan, but may occur here. It has not been found at any islands of Micronesia nor Polynesia.Conservation status (IUCN)Near Threatened (NT)Threat to humansHarmlessUsesFisheries: minor commercial; aquaculture: commercialResilienceLow, minimum population doubling time 4.5 - 14 years (tmax=24) SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026