The Northeast Atlantic is running out of excess carbonate in the horizon of cold-water corals communities
Autor(a) principal: | |
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Data de Publicação: | 2020 |
Outros Autores: | , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10400.1/14770 |
Resumo: | The oceanic uptake of atmospheric carbon dioxide (CO2) emitted by human activities alters the seawater carbonate system. Here, the chemical status of the Northeast Atlantic is examined by means of a high-quality database of carbon variables based on the GO-SHIP A25 section (1997-2018). The increase of atmospheric CO2 leads to an increase in ocean anthropogenic carbon (Cant) and a decrease in carbonate that is unequivocal in the upper and mid-layers (0-2,500 m depth). In the mid-layer, the carbonate content in the Northeast Atlantic is maintained by the interplay between the northward spreading of recently conveyed Mediterranean Water with excess of carbonate and the arrival of subpolar-origin waters close to carbonate undersaturation. In this study we show a progression to undersaturation with respect to aragonite that could compromise the conservation of the habitats and ecosystem services developed by benthic marine calcifiers inhabiting that depth-range, such as the cold-water corals (CWC) communities. For each additional ppm in atmospheric pCO2 the waters surrounding CWC communities lose carbonate at a rate of - 0.17 ± 0.02 μmol kg-1 ppm-1. The accomplishment of global climate policies to limit global warming below 1.5-2 ℃ will avoid the exhaustion of excess carbonate in the Northeast Atlantic. |
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The Northeast Atlantic is running out of excess carbonate in the horizon of cold-water corals communitiesThe oceanic uptake of atmospheric carbon dioxide (CO2) emitted by human activities alters the seawater carbonate system. Here, the chemical status of the Northeast Atlantic is examined by means of a high-quality database of carbon variables based on the GO-SHIP A25 section (1997-2018). The increase of atmospheric CO2 leads to an increase in ocean anthropogenic carbon (Cant) and a decrease in carbonate that is unequivocal in the upper and mid-layers (0-2,500 m depth). In the mid-layer, the carbonate content in the Northeast Atlantic is maintained by the interplay between the northward spreading of recently conveyed Mediterranean Water with excess of carbonate and the arrival of subpolar-origin waters close to carbonate undersaturation. In this study we show a progression to undersaturation with respect to aragonite that could compromise the conservation of the habitats and ecosystem services developed by benthic marine calcifiers inhabiting that depth-range, such as the cold-water corals (CWC) communities. For each additional ppm in atmospheric pCO2 the waters surrounding CWC communities lose carbonate at a rate of - 0.17 ± 0.02 μmol kg-1 ppm-1. The accomplishment of global climate policies to limit global warming below 1.5-2 ℃ will avoid the exhaustion of excess carbonate in the Northeast Atlantic.FCT: UID/Multi/04326/2019 / CEECINST/00114/2018.Nature ResearchSapientiaFontela, MarcosPérez, Fiz F.Carracedo, Lidia I.Padín, Xosé A.Velo, AntónGarcía-Ibañez, Maribel I.Lherminier, Pascale2020-10-14T09:38:54Z20202020-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.1/14770eng2045-232210.1038/s41598-020-71793-2info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-07-24T10:27:06Zoai:sapientia.ualg.pt:10400.1/14770Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T20:05:44.568943Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
The Northeast Atlantic is running out of excess carbonate in the horizon of cold-water corals communities |
title |
The Northeast Atlantic is running out of excess carbonate in the horizon of cold-water corals communities |
spellingShingle |
The Northeast Atlantic is running out of excess carbonate in the horizon of cold-water corals communities Fontela, Marcos |
title_short |
The Northeast Atlantic is running out of excess carbonate in the horizon of cold-water corals communities |
title_full |
The Northeast Atlantic is running out of excess carbonate in the horizon of cold-water corals communities |
title_fullStr |
The Northeast Atlantic is running out of excess carbonate in the horizon of cold-water corals communities |
title_full_unstemmed |
The Northeast Atlantic is running out of excess carbonate in the horizon of cold-water corals communities |
title_sort |
The Northeast Atlantic is running out of excess carbonate in the horizon of cold-water corals communities |
author |
Fontela, Marcos |
author_facet |
Fontela, Marcos Pérez, Fiz F. Carracedo, Lidia I. Padín, Xosé A. Velo, Antón García-Ibañez, Maribel I. Lherminier, Pascale |
author_role |
author |
author2 |
Pérez, Fiz F. Carracedo, Lidia I. Padín, Xosé A. Velo, Antón García-Ibañez, Maribel I. Lherminier, Pascale |
author2_role |
author author author author author author |
dc.contributor.none.fl_str_mv |
Sapientia |
dc.contributor.author.fl_str_mv |
Fontela, Marcos Pérez, Fiz F. Carracedo, Lidia I. Padín, Xosé A. Velo, Antón García-Ibañez, Maribel I. Lherminier, Pascale |
description |
The oceanic uptake of atmospheric carbon dioxide (CO2) emitted by human activities alters the seawater carbonate system. Here, the chemical status of the Northeast Atlantic is examined by means of a high-quality database of carbon variables based on the GO-SHIP A25 section (1997-2018). The increase of atmospheric CO2 leads to an increase in ocean anthropogenic carbon (Cant) and a decrease in carbonate that is unequivocal in the upper and mid-layers (0-2,500 m depth). In the mid-layer, the carbonate content in the Northeast Atlantic is maintained by the interplay between the northward spreading of recently conveyed Mediterranean Water with excess of carbonate and the arrival of subpolar-origin waters close to carbonate undersaturation. In this study we show a progression to undersaturation with respect to aragonite that could compromise the conservation of the habitats and ecosystem services developed by benthic marine calcifiers inhabiting that depth-range, such as the cold-water corals (CWC) communities. For each additional ppm in atmospheric pCO2 the waters surrounding CWC communities lose carbonate at a rate of - 0.17 ± 0.02 μmol kg-1 ppm-1. The accomplishment of global climate policies to limit global warming below 1.5-2 ℃ will avoid the exhaustion of excess carbonate in the Northeast Atlantic. |
publishDate |
2020 |
dc.date.none.fl_str_mv |
2020-10-14T09:38:54Z 2020 2020-01-01T00:00:00Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10400.1/14770 |
url |
http://hdl.handle.net/10400.1/14770 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
2045-2322 10.1038/s41598-020-71793-2 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Nature Research |
publisher.none.fl_str_mv |
Nature Research |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
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Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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RCAAP |
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RCAAP |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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1799133297877450752 |