1. Department of Fisheries Technology and Aquaculture; Alexander Technological Educational Institute of Thessaloniki; Chalkidiki Greece
2. Institute for Agricultural and Fisheries Research (ILVO); Ostend Belgium
3. Department of Ecology; School of Biology; Aristotle University of Thessaloniki; Thessaloniki Greece
4. 2nd High School of Pilea; Pilea Thessaloniki Greece