HomeFish encyclopediaRay-finned fishesSmeltsSmeltsEuropean smelt European smelt (Osmerus eperlanus) Scientific name: Osmerus eperlanus Linnaeus, 1758 The European smelt (Osmerus eperlanus) is a freshwater fish of the family Osmeridae. BiologyInhabits marine waters, estuaries and large lakes. A midwater species, rarely far from shore, primarily anadromous in the west and lacustrine in the east; shoaling at least during spawning season. The essential part of its life is spend in the estuarine zone, with just short incursions in the littoral zone. The migratory form is grouping together in the estuarine zone for reproduction. Enters the rivers for spawning on sandy or gravely bottoms. Spawns in tributaries of lakes or along shallow shores of lakes and rivers on sand, gravel, stones and plant material, preferably in fast-flowing water. Reproduction takes place between February and May, depending on the water-temperature. Produces 8,000-50,000 yellow eggs with a diameter of 0.6-0.9 mm which adhere to the bottoSource: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameOsmerus eperlanusFamilyOsmeridae (Smelts)OrderOsmeriformes (Smelts)ClassActinopterygii (Ray-finned fishes)Maximum length45.0Common length16.5EnvironmentMarine; freshwater; brackish; pelagic-neritic; anadromous, usually 50 - ? mClimateTemperateDistributionNorth Atlantic: White Sea southward to western coasts of France including Baltic Sea, southern North Sea and British Isles; the Gironde estuary is the southern limit of his distribution. Landlocked populations in lakes of coastal areas of North, Baltic, White and Barents Sea. North to about 68? N in Scandinavia. The former nominal subspecies Osmerus eperlanus eperlanus is recorded from the coasts and drainage of White and Barents Seas westward through Baltic Sea to Denmark and it is primarily lacustrine. The former subspecies Osmerus eperlanus schonfoldi (Rutty 1772) is sympatric with the nominate subspecies in parts of Poland, Denmark and the Baltic, and it is primarily anadromous.Conservation status (IUCN)Least Concern (LC)Threat to humansHarmlessUsesFisheries: commercialResilienceMedium, minimum population doubling time 1.4 - 4.4 years (K=0.15-0.25; tm=2-4; tmax=10; Fec=10,000) SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026