1. ISPRA (Institute for Environmental Protection and Research); Rome Italy
2. IUSS University School for Advanced Study of Pavia; Pavia Italy
3. NIOZ Royal Netherlands Institute for Sea Research, Department of Estuarine and Delta Systems, Utrecht University; Yerseke Netherlands
4. Hydraulics Laboratory, Department of Civil Engineering; Katholieke Universiteit Leuven; Leuven Belgium
5. Laboratory of Protistology and Aquatic Ecology, Department of Biology; Ghent University; Ghent Belgium