HomeFish encyclopediaLampreysLampreysLampreysSiberian brook lamprey Siberian brook lamprey (Lethenteron kessleri) Scientific name: Lethenteron kessleri Anikin, 1905 The Siberian brook lamprey (Lethenteron kessleri) is a freshwater fish of the family Petromyzontidae. In the aquarium it needs water at 5–25°C (41–77°F). Native range: Eastern Europe and Siberia. May be a conspecific of Lethenteron japonicum. Siberian brook lamprey care at a glanceTemperature5–25°C (41–77°F) BiologyNon-parasitic lamprey. In Europe the upper courses of rivers, in Siberia also in lakes and lowland rivers. Ammocoetes feed on detritus, green algae, diatoms, and zooplankton. Ammocoetes used as lures for bait casting.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameLethenteron kessleriFamilyPetromyzontidae (Lampreys)OrderPetromyzontiformes (Lampreys)ClassCephalaspidomorphi (Lampreys)Maximum length26.0EnvironmentFreshwater; demersal; non-migratoryClimateTemperateDistributionEastern Europe and Siberia. May be a conspecific of Lethenteron japonicum.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessUsesFisheries: of no interest; bait: usuallyResilienceLow, minimum population doubling time 4.5 - 14 years (tmax=tm=7) SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026