1. University of Zagreb, Faculty of Science, Department of Biology, Rooseveltov trg 6, 10000 Zagreb, Croatia
2. University of Pannonia, Department of Limnology, Egyetem u. 10, 8200 Veszprém, Hungary
3. Department of Plant Molecular Biology, Agricultural Institute, Centre for Agricultural Research, Brunszvik u. 2, H-2462 Martonvásár, Hungary
4. Ruđer Bošković Institute, Bijenička 54, 10000 Zagreb, Croatia
5. Marine Biological Section, Department of Biology, University of Copenhagen, DK-3000 Helsingør, Denmark