Expanding ocean food production under climate change

Free, Christopher M., Cabral, Reniel B., Froehlich, Halley E., Battista, Willow, Ojea, Elena, O’Reilly, Erin, Palardy, James E., García Molinos, Jorge, Siegel, Katherine J., Arnason, Ragnar, Juinio-Meñez, Marie Antonette, Fabricius, Katharina, Turley, Carol, and Gaines, Steven D. (2022) Expanding ocean food production under climate change. Nature, 605. pp. 490-496.

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Abstract

As the human population and demand for food grow1, the ocean will be called on to provide increasing amounts of seafood. Although fisheries reforms and advances in offshore aquaculture (hereafter ‘mariculture’) could increase production2, the true future of seafood depends on human responses to climate change3. Here we investigated whether coordinated reforms in fisheries and mariculture could increase seafood production per capita under climate change. We find that climate-adaptive fisheries reforms will be necessary but insufficient to maintain global seafood production per capita, even with aggressive reductions in greenhouse-gas emissions. However, the potential for sustainable mariculture to increase seafood per capita is vast and could increase seafood production per capita under all but the most severe emissions scenario. These increases are contingent on fisheries reforms, continued advances in feed technology and the establishment of effective mariculture governance and best practices. Furthermore, dramatically curbing emissions is essential for reducing inequities, increasing reform efficacy and mitigating risks unaccounted for in our analysis. Although climate change will challenge the ocean’s ability to meet growing food demands, the ocean could produce more food than it does currently through swift and ambitious action to reduce emissions, reform capture fisheries and expand sustainable mariculture operations.

Item ID: 73690
Item Type: Article (Research - C1)
ISSN: 1476-4687
Copyright Information: © The Author(s), under exclusive licence to Springer Nature Limited 2022
Date Deposited: 14 Jun 2022 00:36
FoR Codes: 30 AGRICULTURAL, VETERINARY AND FOOD SCIENCES > 3005 Fisheries sciences > 300501 Aquaculture @ 50%
30 AGRICULTURAL, VETERINARY AND FOOD SCIENCES > 3005 Fisheries sciences > 300505 Fisheries management @ 50%
SEO Codes: 10 ANIMAL PRODUCTION AND ANIMAL PRIMARY PRODUCTS > 1002 Fisheries - aquaculture > 100299 Fisheries - aquaculture not elsewhere classified @ 100%
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