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John Marcus is CEO of Oxzo, a company focused on the development of advanced oxygenation and aeration technologies for the aquaculture industry. With more than 25 years of experience in engineering and aquaculture, he has built a career centered on integrating technological solutions that enhance production efficiency and environmental performance in aquaculture systems. Since 2011, he has led Oxzo’s international expansion, promoting the development and deployment of patented innovations originally developed in Chile and now implemented in aquaculture operations across several markets, including Chile, Norway, and Canada. His work focuses on aligning technical and strategic teams around goals related to productivity, animal welfare, and operational efficiency, promoting technologies capable of delivering measurable results in aquaculture production, such as increased biomass yields, reduced mortality, and optimized production cycles.
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event activities.
Veterinarian with more than 25 years of experience in the Chilean salmon farming industry, with a professional background spanning fish health, production, nutrition, and product development for aquaculture. He has held both technical and commercial roles in international companies such as DSM Nutritional Products, Hendrix Genetics, and Corbion, leading initiatives related to nutrition, pigmentation, and market development across Latin America. He is the author of scientific publications and a frequent speaker at technical meetings and conferences within the aquaculture sector across several countries in the region.
Leading academic and researcher in fish nutrition and physiology in aquaculture, and an Associate Professor at the Universidad de Chile. His work focuses on optimizing nutrient utilization to enhance production efficiency and sustainability in aquaculture systems.
He holds a degree in Microbiology from the University of Oslo (1989) and has built an extensive international career in aquatic animal health and aquaculture policy. He began his professional career as a scientist at the Norwegian Veterinary Institute, focusing on fish health and disease prevention in aquaculture. He later served in several roles within the Norwegian Ministry of Agriculture, including Head of the Animal Health Unit. He subsequently joined the European Commission (DG Health and Consumer Affairs), where he was responsible for developing the EU legislation on aquatic animal health. From 2017 to 2019 he chaired the FAO COFI Sub-Committee on Aquaculture and, since 2020, he serves as Director General and Head of the Department of Aquaculture at the Norwegian Ministry of Trade, Industry and Fisheries.
Leading academic and researcher in aquatic organism pathology, bacterial diseases, and antimicrobial resistance.