1. Department of Limnology and Oceanography, University of Vienna, Althanstrasse 14, 1090 Vienna, Austria
2. WasserCluster Lunz GmbH, Dr Carl Kupelwieser Promenade 5, 3293 Lunz am See, Austria
3. School of Engineering, University of Glasgow, Glasgow G12 8QQ, UK
4. Laboratory of Ecohydrology, School of Architecture, Civil and Environmental Engineering, Ecole Polytechnique Fédérale Lausanne, 1015 Lausanne, Switzerland