Mr Azaza is a senior research scientist and Director of the Aquaculture Laboratory at the Tunisian National Institute of Marine Sciences and Technology (INSTM), where he joined 20 years ago. He has received a PhD and HDR in Biological sciences and aquaculture from the University of Tunis El-Manar. Mr Azaza has vast experience in fish nutrition and physiology area, focusing on growth, nutrients digestibility, metabolism and utilization efficiency, feed formulation, feedstuff evaluation for aquaculture species. He has published over 25 peer-reviewed research papers in international and indexed journals resulted from his research activities. He also serves as a reviewer for several fish biology and aquaculture related journals (e.g. Aquaculture, Aquaculture international, Aquaculture Nutrition, Aquaculture Research, etc.) and research grant proposal (H2020, PHC Maghreb, PHC Utique Programs). He undertook various international expert roles, as well as participated in several EU-projects and H2020 programs.