HomeFish encyclopediaRay-finned fishesPerch-like fishSurfperchesReef perch Reef perch (Micrometrus aurora) Scientific name: Micrometrus aurora Jordan & Gilbert, 1880 The Reef perch (Micrometrus aurora) is a marine fish of the family Embiotocidae. Native range: Eastern Pacific, Tomales Bay in northern California, USA to northern central Baja California, Mexico. BiologyAdults usually occur in shallow rocky areas; in tide pools and at depths up to 6.1 m. Feed on algae and small invertebrates. Viviparous, female carries the developing young.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameMicrometrus auroraFamilyEmbiotocidae (Surfperches)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length18.0EnvironmentMarine; demersalClimateSubtropicalDistributionEastern Pacific: Tomales Bay in northern California, USA to northern central Baja California, Mexico.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessResilienceMedium, minimum population doubling time 1.4 - 4.4 years (K=0.3) SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026