Parasites of Common (Sterna hirundo) and Arctic (Sterna paradisaea) Terns (Charadriiformes, Laridae) in Karelia

摘要

The fauna of parasites of Common (Sterna hirundo) and Arctic (Sterna paradisaea) terns obtained during the spring hunting period of 2013-2015 on the coast of Lake Ladoga has been studied. We found 15 species of parasites of various systematic groups: Cestoda (six species), Trematoda (four species), Nematoda (two species), Acanthocephala (two species), and Crustacea (one species). In the Common tern, 11 species of parasites have been registered, and in the Arctic tern, seven species. All parasites identified are typical and widespread helminths of fish-eating birds that are ubiquitous in the Palearctic. For the first time in the territory of Karelia, the species Reighardia sternae Diesing 1864 has been recorded.