HomeFish encyclopediaRay-finned fishesPerch-like fishGobiesCaspian sand goby Caspian sand goby (Neogobius pallasi) Scientific name: Neogobius pallasi Berg, 1916 The Caspian sand goby (Neogobius pallasi) is a freshwater fish of the family Gobiidae. Native range: Europe and Asia, Caspian basin; common in Volga drainage, upriver to Moscow. Introduced in Aral basin. BiologyThis species is distinguished from its congeners entering freshwater in the Caspian Sea basin by the following characters: first branched ray of second dorsal about as long as penultimate ray; nape completely scaled; pelvic-disc fraenum with small rounded lobes and the length is less than 1/6 of width at base; pelvic disc reaching 90-100% of distance between its origin and anus; scales in midlateral series 55-63 + 2-3; in juveniles at least, posterior part of first dorsal with black spot.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameNeogobius pallasiFamilyGobiidae (Gobies)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length20.0EnvironmentFreshwater; benthopelagicClimateTemperateDistributionEurope and Asia: Caspian basin; common in Volga drainage, upriver to Moscow. Introduced in Aral basin.Conservation status (IUCN)Least Concern (LC)Threat to humansHarmlessUsesFisheries: commercialResilienceMedium, minimum population doubling time 1.4 - 4.4 years (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