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Marine heatwaves exacerbate climate change impacts for fisheries in the northeast Pacific

Marine heatwaves (MHWs) have occurred in all ocean basins with severe negative impacts on coastal and ocean ecosystems. The northeast Pacific 2013–2015 MHW in particular received major societal concerns. Yet, our knowledge about how MHWs impact fish stocks is limited. Here, we combine outputs from a...

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Detalles Bibliográficos
Autores principales: Cheung, William W. L., Frölicher, Thomas L.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7174322/
https://www.ncbi.nlm.nih.gov/pubmed/32317685
http://dx.doi.org/10.1038/s41598-020-63650-z
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author Cheung, William W. L.
Frölicher, Thomas L.
author_facet Cheung, William W. L.
Frölicher, Thomas L.
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description Marine heatwaves (MHWs) have occurred in all ocean basins with severe negative impacts on coastal and ocean ecosystems. The northeast Pacific 2013–2015 MHW in particular received major societal concerns. Yet, our knowledge about how MHWs impact fish stocks is limited. Here, we combine outputs from a large ensemble simulation of an Earth system model with a fish impact model to simulate responses of major northeast Pacific fish stocks to MHWs. We show that MHWs cause biomass decrease and shifts in biogeography of fish stocks that are at least four times faster and bigger in magnitude than the effects of decadal-scale mean changes throughout the 21st century. With MHWs, we project a doubling of impact levels by 2050 amongst the most important fisheries species over previous assessments that focus only on long-term climate change. Our results underscore the additional challenges from MHWs for fisheries and their management under climate change.
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spelling pubmed-71743222020-04-24 Marine heatwaves exacerbate climate change impacts for fisheries in the northeast Pacific Cheung, William W. L. Frölicher, Thomas L. Sci Rep Article Marine heatwaves (MHWs) have occurred in all ocean basins with severe negative impacts on coastal and ocean ecosystems. The northeast Pacific 2013–2015 MHW in particular received major societal concerns. Yet, our knowledge about how MHWs impact fish stocks is limited. Here, we combine outputs from a large ensemble simulation of an Earth system model with a fish impact model to simulate responses of major northeast Pacific fish stocks to MHWs. We show that MHWs cause biomass decrease and shifts in biogeography of fish stocks that are at least four times faster and bigger in magnitude than the effects of decadal-scale mean changes throughout the 21st century. With MHWs, we project a doubling of impact levels by 2050 amongst the most important fisheries species over previous assessments that focus only on long-term climate change. Our results underscore the additional challenges from MHWs for fisheries and their management under climate change. Nature Publishing Group UK 2020-04-21 /pmc/articles/PMC7174322/ /pubmed/32317685 http://dx.doi.org/10.1038/s41598-020-63650-z Text en © The Author(s) 2020 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.
spellingShingle Article
Cheung, William W. L.
Frölicher, Thomas L.
Marine heatwaves exacerbate climate change impacts for fisheries in the northeast Pacific
title Marine heatwaves exacerbate climate change impacts for fisheries in the northeast Pacific
title_full Marine heatwaves exacerbate climate change impacts for fisheries in the northeast Pacific
title_fullStr Marine heatwaves exacerbate climate change impacts for fisheries in the northeast Pacific
title_full_unstemmed Marine heatwaves exacerbate climate change impacts for fisheries in the northeast Pacific
title_short Marine heatwaves exacerbate climate change impacts for fisheries in the northeast Pacific
title_sort marine heatwaves exacerbate climate change impacts for fisheries in the northeast pacific
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7174322/
https://www.ncbi.nlm.nih.gov/pubmed/32317685
http://dx.doi.org/10.1038/s41598-020-63650-z
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