NEWS 110 FEED & ADDITIVE MAGAZINE September 2024 QRILL Aqua by Aker BioMarine revealed the details of two recently published scientific studies that are important for sustainability in fisheries and aquaculture. Together, these studies highlight how innovative approaches can yield greater efficiency and less impact for the industry while simultaneously improving performance results. The first study, titled “Sustainability activities in a hard-toabate industry – a real-life example”, was authored by scientists at Aker BioMarine. It offers a comprehensive analysis of sustainability in fisheries and production, emphasizing transparency, innovation, and the significant reduction of CO2 emissions. “This study is unique in that it details innovative and transparent practices in a sustainable fishery based on Aker BioMarine’s own operations, with examples of initiatives such as CO2 hotspot mapping and targeted greenhouse gas emissions reductions,” says Ragnhild Dragøy, VP Product Management and Sustainability at Aker BioMarine, and one of the study’s authors. Read more>> New studies spotlight the sustainability of krill Climate change poses a severe threat to food production, making it imperative to find sustainable methods. One such method is aquaponics, which grows fish and vegetables together. Now, Ben-Gurion University of the Negev water researchers offered a proof of concept for a new closed loop system that produced more fish and vegetables while using less energy than conventional systems. Findings were published in the journal Resources, Conservation & Recycling. Prof. Amit Gross, Director of the Zuckerberg Institute for Water Research at the Jacob Blaustein Institutes for Desert Research of Ben-Gurion University has been working with his students and collaborators for the last decade on aquaponic systems. Aquaponic systems grow fish while using the fish waste to grow vegetables hydroponically. Coupled aquaponics are closed loop systems that recycle much of the fish effluent rather than reusing it outside of the aquaponic system. Where typically the fish solid waste is disposed of, the research led by Prof. Gross managed to treat it by anaerobic digestion and recover energy and nutrients into the system to form a near zero waste unit. According to a statement, after more than two years of testing, Prof. Gross' system demonstrated 1.6 times higher plant areal productivity, 2.1 times lower water usage and 16% less energy consumption per kilogram of feed than conventional systems. His calculations suggest that upscaling to about one ton of fish will allow operation of the system with no need for external energy, less than 1% water exchange, negligible waste production as well as significant carbon sequestration. Thus, it reportedly has the potential to be a sustainable stand-alone unit and supply food efficiently anywhere. Read more>> Researchers offer proof of concept for new aquaponics system
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