1. Department of Environment, Land and Infrastructure Engineering, Politecnico di Torino, Turin, Italy
2. Department of Ecohydrology and Biogeochemistry, Leibniz Institute of Freshwater Ecology and Inland Fisheries, Berlin, Germany
3. Department of Biology, Chemistry and Pharmacy, Free University of Berlin, Berlin, Germany
4. Ittiologo libero professionista, Predosa, Italy