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A global network of marine protected areas for food
Marine protected areas (MPAs) are conservation tools that are increasingly implemented, with growing national commitments for MPA expansion. Perhaps the greatest challenge to expanded use of MPAs is the perceived trade-off between protection and food production. Since MPAs can benefit both conservat...
Autores principales: | , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
National Academy of Sciences
2020
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7668080/ https://www.ncbi.nlm.nih.gov/pubmed/33106411 http://dx.doi.org/10.1073/pnas.2000174117 |
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author | Cabral, Reniel B. Bradley, Darcy Mayorga, Juan Goodell, Whitney Friedlander, Alan M. Sala, Enric Costello, Christopher Gaines, Steven D. |
author_facet | Cabral, Reniel B. Bradley, Darcy Mayorga, Juan Goodell, Whitney Friedlander, Alan M. Sala, Enric Costello, Christopher Gaines, Steven D. |
author_sort | Cabral, Reniel B. |
collection | PubMed |
description | Marine protected areas (MPAs) are conservation tools that are increasingly implemented, with growing national commitments for MPA expansion. Perhaps the greatest challenge to expanded use of MPAs is the perceived trade-off between protection and food production. Since MPAs can benefit both conservation and fisheries in areas experiencing overfishing and since overfishing is common in many coastal nations, we ask how MPAs can be designed specifically to improve fisheries yields. We assembled distribution, life history, and fisheries exploitation data for 1,338 commercially important stocks to derive an optimized network of MPAs globally. We show that strategically expanding the existing global MPA network to protect an additional 5% of the ocean could increase future catch by at least 20% via spillover, generating 9 to 12 million metric tons more food annually than in a business-as-usual world with no additional protection. Our results demonstrate how food provisioning can be a central driver of MPA design, offering a pathway to strategically conserve ocean areas while securing seafood for the future. |
format | Online Article Text |
id | pubmed-7668080 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | National Academy of Sciences |
record_format | MEDLINE/PubMed |
spelling | pubmed-76680802020-11-27 A global network of marine protected areas for food Cabral, Reniel B. Bradley, Darcy Mayorga, Juan Goodell, Whitney Friedlander, Alan M. Sala, Enric Costello, Christopher Gaines, Steven D. Proc Natl Acad Sci U S A Biological Sciences Marine protected areas (MPAs) are conservation tools that are increasingly implemented, with growing national commitments for MPA expansion. Perhaps the greatest challenge to expanded use of MPAs is the perceived trade-off between protection and food production. Since MPAs can benefit both conservation and fisheries in areas experiencing overfishing and since overfishing is common in many coastal nations, we ask how MPAs can be designed specifically to improve fisheries yields. We assembled distribution, life history, and fisheries exploitation data for 1,338 commercially important stocks to derive an optimized network of MPAs globally. We show that strategically expanding the existing global MPA network to protect an additional 5% of the ocean could increase future catch by at least 20% via spillover, generating 9 to 12 million metric tons more food annually than in a business-as-usual world with no additional protection. Our results demonstrate how food provisioning can be a central driver of MPA design, offering a pathway to strategically conserve ocean areas while securing seafood for the future. National Academy of Sciences 2020-11-10 2020-10-26 /pmc/articles/PMC7668080/ /pubmed/33106411 http://dx.doi.org/10.1073/pnas.2000174117 Text en Copyright © 2020 the Author(s). Published by PNAS. https://creativecommons.org/licenses/by-nc-nd/4.0/ https://creativecommons.org/licenses/by-nc-nd/4.0/This open access article is distributed under Creative Commons Attribution-NonCommercial-NoDerivatives License 4.0 (CC BY-NC-ND) (https://creativecommons.org/licenses/by-nc-nd/4.0/) . |
spellingShingle | Biological Sciences Cabral, Reniel B. Bradley, Darcy Mayorga, Juan Goodell, Whitney Friedlander, Alan M. Sala, Enric Costello, Christopher Gaines, Steven D. A global network of marine protected areas for food |
title | A global network of marine protected areas for food |
title_full | A global network of marine protected areas for food |
title_fullStr | A global network of marine protected areas for food |
title_full_unstemmed | A global network of marine protected areas for food |
title_short | A global network of marine protected areas for food |
title_sort | global network of marine protected areas for food |
topic | Biological Sciences |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7668080/ https://www.ncbi.nlm.nih.gov/pubmed/33106411 http://dx.doi.org/10.1073/pnas.2000174117 |
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