Balaton Limnological Research InstituteHungarian Academy of Sciences, Hungary

Center for LimnologyUniversity of Wisconsin-Madison, USA

Institute for LimnologyAustrian Academy of Sciences, Mondsee, Austria

Institute of Limnology, Russian Academy of Sciences St.-Petersburg, Russia

Kinneret Limnological LaboratoryMigdal, Israel

Institute of Zoology and LimnologyUniversity of Innsbruck, Austria

Limnological StationTechnical University of Munich, Germany

Max Planck Institute for Limnology Ploen, Germany