* Hydrobiological Institute, Academy of Science of Czech Republic* Research Institute of Fish Culture and Hydrobiology* Department of Hydrobiology, Slovak Academy of Science, Bratislava, Slovakia* Max-Planck-Institut fur Limnologie in Ploen, Germany* CNR-Istituto Italiano di Idrobiologia* Institute of Hydrobiology, Chinese Academy of Sciences* Hydrobiology Pty Ltd Brisbane, Australia based private consulting company* Institute of Zoology and Hydrobiology University of Tartu, Estonia* Department of Hydrobiology Bulgarian Academy of Sciences* Department of General and Applied Hydrobiology Faculty of Biology, Sofia University "Sveti Kliment Ohridski", Bulgaria== المجلات او الدوريات العلمية ==* Fundamental and Applied Limnology* International Review of Hydrobiology* Indian Hydrobiology* Hydrobiologia* The African Journal of Tropical Hydrobiology and Fisheries* Review of Hydrobiology* The Biological Bulletin* E.P.H.