Ukrainian brook lamprey

The Ukrainian brook lamprey (Eudontomyzon mariae) is a species of lamprey in the Petromyzontidae family. It is found in brackish and freshwater areas in Austria, Belarus, Bulgaria, the Czech Republic, Georgia, Hungary, Moldova, North Macedonia, Poland, Romania, Russia, Serbia, Montenegro, Slovakia, Turkey, and Ukraine. It invaded the basin of the Volga River in 2001.^[4]

Ukrainian brook lamprey
Conservation status
Least Concern  (IUCN 3.1)[1]
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Subphylum:	Vertebrata
Infraphylum:	Agnatha
Superclass:	Cyclostomi
Class:	Petromyzontida
Order:	Petromyzontiformes
Family:	Petromyzontidae
Genus:	Eudontomyzon
Species:	E. mariae
Binomial name
Eudontomyzon mariae (Berg, 1931)
Synonyms[2][3]
Lampetra mariae Berg 3402 Petromyzon ponticus Yashchenko 1896

Biology

The Ukrainian brook lamprey reaches a maximum length of 22 cm (8.7 in). It inhabits the mountain and foothill bodies of water containing clear water with strong currents. It is a non-parasitic lamprey. They are preyed on by chub and other species during spawning, which takes place on gravel and sand substrates.