1. Department of Geology, Quaternary Sciences Lund University Lund Sweden
2. Department of Biology, Aquatic Ecology Lund University Lund Sweden
3. Department of Ecology and Genetics/Limnology Uppsala University Uppsala Sweden
4. Centre for Environmental and Climate Research (CEC) Lund University Lund Sweden
5. Department of Biology Microbial Ecology Group Lund University Lund Sweden