HomeFish encyclopediaRay-finned fishesSilversidesNeotropical silversidesChilean silverside Chilean silverside (Odontesthes regia) Scientific name: Odontesthes regia Humboldt, 1821 The Chilean silverside (Odontesthes regia) is a freshwater fish of the family Atherinopsidae. Native range: South America, Pa?ta, Peru to Ays?n, Chile. BiologyOccurs in schools. Is mainly diurnal. Feeds primarily on the eggs of Engraulis ringens.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameOdontesthes regiaFamilyAtherinopsidae (Neotropical silversides)OrderAtheriniformes (Silversides)ClassActinopterygii (Ray-finned fishes)Maximum length13.5EnvironmentMarine; freshwater; brackish; pelagic-neriticClimateTropicalDistributionSouth America: Pa?ta, Peru to Ays?n, Chile.Conservation status (IUCN)Least Concern (LC)Threat to humansHarmlessResilienceHigh, minimum population doubling time less than 15 months (K=0.69) SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026