HomeFish encyclopediaLampreysLampreysLampreysDanubian brook lamprey Danubian brook lamprey (Eudontomyzon vladykovi) Scientific name: Eudontomyzon vladykovi Oliva & Zanandrea, 1959 The Danubian brook lamprey (Eudontomyzon vladykovi) is a freshwater fish of the family Petromyzontidae. BiologyDorsal spines: 0; Dorsal soft rays: 0. With 61 - 67 trunk myomeres; trunk not mottled in live ammocoetes. The caudal fin is hyaline, of a spade-like shape.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameEudontomyzon vladykoviFamilyPetromyzontidae (Lampreys)OrderPetromyzontiformes (Lampreys)ClassCephalaspidomorphi (Lampreys)Maximum length21.2Common length18.0EnvironmentFreshwater; demersalClimateTemperateDistributionEurope: Upper and middle Danube drainage: Sava, Drava systems and west Drava tributaries; lower Danube drainage. Locally present in Timis and Olt systems. Not recorded from Tisza and Cerna systems.Conservation status (IUCN)Least Concern (LC)Threat to humansHarmlessUsesFisheries: of no interestResilienceMedium, 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