HomeFish encyclopediaRay-finned fishesSilversidesNeotropical silversidesRough silverside Rough silverside (Membras martinica) Scientific name: Membras martinica Valenciennes, 1835 The Rough silverside (Membras martinica) is a marine fish of the family Atherinopsidae. Native range: Western Atlantic, New York and northern Gulf of Mexico to Florida in USA and northern Mexico. Species factsScientific nameMembras martinicaFamilyAtherinopsidae (Neotropical silversides)OrderAtheriniformes (Silversides)ClassActinopterygii (Ray-finned fishes)Maximum length12.5EnvironmentMarine; pelagic-neriticClimateSubtropicalDistributionWestern Atlantic: New York and northern Gulf of Mexico to Florida in USA and northern Mexico.Conservation status (IUCN)Least Concern (LC)Threat 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