Nature Conservation 4/2010 — 14. 9. 2010 — Nature and Landscape Management — Print article in pdf
The Little Whirlpool Rams-horn Snail (Anisus vorticulus), which has been listed in the European Communitys Habitats Directive as a Species of Community Interest, is a very rare and critically endangered mollusc in the Czech Republic.
With respect to its current distribution, there are only three isolated sites in Bohemia (the Elbe River Basin) and a single site in Silesia (the Odra River Basin). The small planorbid gastropod is also confirmed to Central Moravia (the Morava River Basin), where two isolated sites of its occurrence are located. In southern Moravia, more sites can be found in extensive area in the Morava and Dyje/Thaya River floodplain upstream of their confluence. The author also summarizes management measures to be taken to maintain the species population in the Czech Republic.