HomeFish encyclopediaRay-finned fishesPerch-like fishLabrisomidsSargassum blenny Sargassum blenny (Exerpes asper) Scientific name: Exerpes asper Jenkins & Evermann, 1889 The Sargassum blenny (Exerpes asper) is a marine fish of the family Labrisomidae. Native range: Eastern Pacific Ocean, from the Gulf of California and outer coast of Baja California. BiologyCommon among Sargassum weed or eelgrass. Feeds on invertebrates.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameExerpes asperFamilyLabrisomidae (Labrisomids)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length6.5EnvironmentMarine; demersalClimateTropicalDistributionEastern Pacific Ocean: from the Gulf of California and outer coast of Baja California.Conservation status (IUCN)Least Concern (LC)Threat to humansHarmless SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026