HomeFish encyclopediaRay-finned fishesPerch-like fishMojarrasGraceful mojarra Graceful mojarra (Eucinostomus gracilis) Scientific name: Eucinostomus gracilis Gill, 1862 The Graceful mojarra (Eucinostomus gracilis) is a freshwater fish of the family Gerreidae. Native range: Eastern Pacific, Anaheim Bay, southern California, USA to Peru. BiologyBody fusiform, compressed, and slender (depth contained 3.2 to 3.6 times in standard length); jaws protrusible; edge of preopercle smooth; second anal spine short and thin; pelvic fin short (1.8 to 2.0 times in head length); body silvery, darker in the dorsal region; fins transparent except for tips of dorsal spines which are black.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameEucinostomus gracilisFamilyGerreidae (Mojarras)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length21.0Common length12.0EnvironmentMarine; freshwater; brackish; demersalClimateSubtropicalDistributionEastern Pacific: Anaheim Bay, southern California, USA to Peru.Conservation status (IUCN)Least Concern (LC)Threat 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