Nematofauna of ducks of the genus Melanitta [Mergini, Anseriformes] from the south Baltic Sea

A total of 10 individuals each of the common scoter (Melanitta nigra) and the velvet scoter (M. fusca) were examined for parasites. The scoters are marine ducks wintering at the south−western coast of the Baltic Sea. The scoters were found to be infected with 5 nematode species. While the common scoter supported Amidostomoides monodon, Epomidiostomum uncinatum, Tetrameres sp. and Echinuria hypognatha, the velvet scoter were hosts to A. monodon, E. hypognatha, and Streptocara crassicauda. This is the first record of Echinuria hypognatha in Poland.