Abstract
In 2008, the New Zealand mud snail Potamopyrgus antipodarum was detected in artificial freshwater lakes of Kalinigrad City (Russia), developed in sand and gravel extraction sites. P. antipodarum records along the Baltic coast were previously located in open sea and estuary sites and this is first species’ record, in this type of man-made freshwater habitat, for the Baltic Region.
Highlights
The New Zealand mud snail, Potamopyrgus antipodarum (Gray, 1843), was first observed in the western Baltic Sea in 1887 (Lassen 1978)
In Russia, P. antipodarum was known in the eastern Gulf of Finland and the Lower Don Basin (Orlova et al 1999; Son et al 2008)
In 2008, this species was found in the littoral zone of artificial freshwater reservoirs of Kalinigrad City. They represent a group of artificial lakes situated along the SW Kaliningrad Gulf (Lake Forelevoje and Golubyje Lakes) that have recently arisen due to the extraction of sand and gravel in places which are used for recreational purposes
Summary
The New Zealand mud snail, Potamopyrgus antipodarum (Gray, 1843), was first observed in the western Baltic Sea in 1887 (Lassen 1978). Later it was reported in the North Baltic archipelago (Aland Islands), Wismar Bight (Germany), the Swedish island Gotland, Bothnian Bay, Gulf of Finland, Odra Estuary, Vistula Lagoon, and Curonian Lagoon (Hubendick 1950; Gruszka 1999; Orlova et al 1999; Leppakoski and Olenin 2000; Ezhova et al 2005; Gasiunaite et al 2008).
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