HomeFish encyclopediaRay-finned fishesPerch-like fishSea basses: groupers and fairy bassletsWestern sea perch Western sea perch (Lepidoperca occidentalis) Scientific name: Lepidoperca occidentalis Whitley, 1951 The Western sea perch (Lepidoperca occidentalis) is a marine fish of the family Serranidae. Native range: Eastern Indian Ocean, endemic to southern Australia, from Western Australia to South Australia. Species factsScientific nameLepidoperca occidentalisFamilySerranidae (Sea basses: groupers and fairy basslets)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length15.0Depth range40–200 m (131–656 ft)EnvironmentMarine; demersal; depth range 40 - 200 mClimateSubtropicalDistributionEastern Indian Ocean: endemic to southern Australia, from Western Australia to South Australia.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessResilienceHigh, 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