[The studies of the invasion of Alaria alata (Goeze,1782) in the Province of Kuyavia and Pomerania].

The studies were conducted between 1999 and 2001 in two hunting regions. Larval alariosis was revealed in the boars only in one of the studied regions. In this region, the results of the parasitological studies, conducted towards A. alata in the direct host (domestic dogs) and indirect hosts (snails: Planorbis planorbis and Anisus vortex as well as frogs: Rana temporaria and Rana terrestris) were also positive. The lack of the host snails A. alata in the other region might have resulted from no presence of the parasite in the boar.