Water mites (Acari: Hydrachnidia) of the „Golczewskie Uroczysko” nature reserve

The „Golczewskie Uroczysko” nature reserve was established on 5 May 2004 to protect the raised peat bog and the dystrophic Lake Żabie with its surrounding transitional bog and adjacent forest complexes containing valuable plants. In May, July and October 2006 the research of water mite (Hydrachnidia) fauna has been conducted. A total of 557 water mite specimens belonging to 41 species were collected and among these 382 specimens belonging to 31 species were collected in Lake Żabie, 83 specimens belonging to 21 species were collected in ditches in the forest, 70 specimens belonging to 15 species in a ditch on the beatboog and 22 specimens belonging to 10 species in flooded alder forest. In a ditch in the peat bog, ditches in the forest and Lake Żabie tyrphobiontic and tyrphophilous species were dominant, with a substantial part of small water body species in Lake Żabie and with similar part of small water body species and vernal astatic water body species in a ditch in the peat bog and ditches in the forest. In flooded alder forest vernal astatic water body species were dominants.