Abstract
The increase in the global population demands more biomass from the ocean as future food and feed, and the mesopelagic species might contribute significantly. In the present study, we evaluated the food and feed safety of six of the most abundant mesopelagic species in Norwegian fjords. Trace elements (i.e., arsenic, cadmium, mercury, and lead), organic pollutants (i.e., dioxins, furans, dioxin-like polychlorinated biphenyls, and polybrominated flame-retardants), and potentially problematic lipid compounds (i.e., wax esters and erucic acid) were analyzed and compared to existing food and feed maximum levels and intake recommendations. Furthermore, contaminant loads in processed mesopelagic biomass (protein, oil, and fish meal) was estimated using worst-case scenarios to identify possible food and feed safety issues. While most undesirables were low considering European food legislation, we identified a few potential food safety issues regarding high levels of fluoride in Northern krill, wax esters in glacier lanternfish, and long-chain monounsaturated fatty acids in silvery lightfish. Our estimates in processed biomass indicated high levels of undesirable trace elements in the protein fraction, frequently exceeding the maximum levels for feed ingredients. However, in fish meal, almost no exceedances were seen. In the oil fraction, dioxins and furans were above the maximum levels, given for food and feed ingredients. The present study is crucial to enable an evaluation of the value of these species; however, more data is needed before proceeding with large-scale harvesting of mesopelagic biomass.
Subject
Plant Science,Health Professions (miscellaneous),Health(social science),Microbiology,Food Science
Reference105 articles.
1. The Future of Food from the Seahttp://www.sureaqua.no/Sureaqua/library/The%20Future%20of%20Food%20from%20the%20Sea%20(High%20Level%20Panel).pdf
2. Sustainability in Action, in The State of World Fisheries and Aquaculture (SOFIA),2020
3. Food from the Oceans-How Can More Food and Biomass Be Obtained from the Oceans in a Way That Does Not Deprive Future Generations of Their Benefits?https://gala.gre.ac.uk/id/eprint/20121/1/20121%20HARVEY_Food_From_the_Oceans_2017.pdf
4. A Review of the World Resources of Mesopelagic Fish;Gjøsaeter,1980
5. Large mesopelagic fishes biomass and trophic efficiency in the open ocean
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