HomeFish encyclopediaRay-finned fishesPerch-like fishSea basses: groupers and fairy bassletsMaori grouper Maori grouper (Epinephelus undulatostriatus) Scientific name: Epinephelus undulatostriatus Peters, 1866 The Maori grouper (Epinephelus undulatostriatus) is a marine fish of the family Serranidae. BiologyDorsal spines (total): 11; Dorsal soft rays (total): 15-17; Anal spines: 3; Anal soft rays: 8. Interorbital space convex; preopercle sub angular, serrae slightly enlarged; upper edge of the operculum almost straight; nostrils subequal; maxilla reaches to or slightly beyond vertical at posterior edge of the eye. Pectoral fins fleshy; pelvic fins not reaching anus, except in small individuals. Pyloric caeca 11. Generally brown with close-set wavy longitudinal brownish orange, golden brown or reddish brown stripes or coalesced spots. Median fins with narrow yellow margin; pectoral fins diffusely yellow distally.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameEpinephelus undulatostriatusFamilySerranidae (Sea basses: groupers and fairy basslets)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length61.0Depth range27–80 m (89–262 ft)EnvironmentMarine; reef-associated; depth range 27 - 80 mClimateTemperateDistributionWestern Pacific: endemic to Australia, from southern Queensland (One Tree Islands, Great Barrier Reef at 23?30'S) to Bateman's Bay (35?44'S), New South Wales. One specimen was reported from Kangaroo Islands, South Australia.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