The two sampling lakes are located in the Kobbefjord catchment area in the bottom of Kobbefjord (Badesø / Kangerluarsunnguup Tasia: 64,13ºN, 51,36ºW and Qassi Sø: 64,15ºN, 51,31ºW). They are monitored monthly during the ice-free period. Monitoring include ice cover, water chemistry, DOC (dissolved organic carbon), chlorophyll a, physical conditions, species composition of plankton, vegetation, and fish. Zooplankton samples are saved in lugol and indentified and counted by specialists in Denmark. For further details, please refer to the newest BioBasis manual available at the website.