HomeFish encyclopediaRay-finned fishesPerch-like fishMojarrasSilver mojarra Silver mojarra (Eucinostomus argenteus) Scientific name: Eucinostomus argenteus Baird & Girard, 1855 The Silver mojarra (Eucinostomus argenteus) is a freshwater fish of the family Gerreidae. BiologyDorsal spines (total): 9; Dorsal soft rays (total): 10; Anal spines: 3; Anal soft rays: 8. Tip of dorsal fin dusky. Premaxillary groove continuous but narrow, bordered by scales anteriorly.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameEucinostomus argenteusFamilyGerreidae (Mojarras)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length20.0Common length15.0Depth range0–12 m (0–39 ft)EnvironmentMarine; freshwater; brackish; reef-associated; depth range 0 - 12 mClimateSubtropicalDistributionEastern Pacific: Anaheim Bay in southern California, USA southward to Peru, including the Galapagos Islands. Western Atlantic: New Jersey, USA and Bermuda through the Gulf of Mexico and the Caribbean to southeastern Brazil.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessUsesFisheries: minor commercial; bait: occasionallyResilienceHigh, 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