Impacts of hypoxic events surpass those of future ocean warming and acidification
Autor(a) principal: | |
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Data de Publicação: | 2021 |
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/10316/98640 https://doi.org/10.1038/s41559-020-01370-3 |
Resumo: | Over the past decades, three major challenges to marine life have emerged as a consequence of anthropogenic emissions: ocean warming, acidification and oxygen loss. While most experimental research has targeted the first two stressors, the last remains comparatively neglected. Here, we implemented sequential hierarchical mixed-model meta-analyses (721 control–treatment comparisons) to compare the impacts of oxygen conditions associated with the current and continuously intensifying hypoxic events (1–3.5 O2 mg l−1 ) with those experimentally yielded by ocean warming (+4 °C) and acidification (−0.4 units) conditions on the basis of IPCC projections (RCP 8.5) for 2100. In contrast to warming and acidification, hypoxic events elicited consistent negative effects relative to control biological performance—survival (–33%), abundance (–65%), development (–51%), metabolism (–33%), growth (–24%) and reproduction (–39%)—across the taxonomic groups (mollusks, crustaceans and fish), ontogenetic stages and climate regions studied. Our findings call for a refocus of global change experimental studies, integrating oxygen concentration drivers as a key factor of ocean change. Given potential combined effects, multistressor designs including gradual and extreme changes are further warranted to fully disclose the future impacts of ocean oxygen loss, warming and acidification. |
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Impacts of hypoxic events surpass those of future ocean warming and acidificationOver the past decades, three major challenges to marine life have emerged as a consequence of anthropogenic emissions: ocean warming, acidification and oxygen loss. While most experimental research has targeted the first two stressors, the last remains comparatively neglected. Here, we implemented sequential hierarchical mixed-model meta-analyses (721 control–treatment comparisons) to compare the impacts of oxygen conditions associated with the current and continuously intensifying hypoxic events (1–3.5 O2 mg l−1 ) with those experimentally yielded by ocean warming (+4 °C) and acidification (−0.4 units) conditions on the basis of IPCC projections (RCP 8.5) for 2100. In contrast to warming and acidification, hypoxic events elicited consistent negative effects relative to control biological performance—survival (–33%), abundance (–65%), development (–51%), metabolism (–33%), growth (–24%) and reproduction (–39%)—across the taxonomic groups (mollusks, crustaceans and fish), ontogenetic stages and climate regions studied. Our findings call for a refocus of global change experimental studies, integrating oxygen concentration drivers as a key factor of ocean change. Given potential combined effects, multistressor designs including gradual and extreme changes are further warranted to fully disclose the future impacts of ocean oxygen loss, warming and acidification.3F10-AC72-52D0 | Verónica Ferreirainfo:eu-repo/semantics/publishedVersion2021-01-11info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://hdl.handle.net/10316/98640http://hdl.handle.net/10316/98640https://doi.org/10.1038/s41559-020-01370-3eng2397-334Xcv-prod-2294470Sampaio, EduardoSantos, CatarinaRosa, Inês C.Ferreira, VerónicaPörtner, Hans-OttoDuarte, Carlos M.Levin, Lisa A.Rosa, Ruiinfo: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:RCAAP2022-02-10T11:28:21Zoai:estudogeral.uc.pt:10316/98640Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T21:16:25.031451Repositório 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 |
Impacts of hypoxic events surpass those of future ocean warming and acidification |
title |
Impacts of hypoxic events surpass those of future ocean warming and acidification |
spellingShingle |
Impacts of hypoxic events surpass those of future ocean warming and acidification Sampaio, Eduardo |
title_short |
Impacts of hypoxic events surpass those of future ocean warming and acidification |
title_full |
Impacts of hypoxic events surpass those of future ocean warming and acidification |
title_fullStr |
Impacts of hypoxic events surpass those of future ocean warming and acidification |
title_full_unstemmed |
Impacts of hypoxic events surpass those of future ocean warming and acidification |
title_sort |
Impacts of hypoxic events surpass those of future ocean warming and acidification |
author |
Sampaio, Eduardo |
author_facet |
Sampaio, Eduardo Santos, Catarina Rosa, Inês C. Ferreira, Verónica Pörtner, Hans-Otto Duarte, Carlos M. Levin, Lisa A. Rosa, Rui |
author_role |
author |
author2 |
Santos, Catarina Rosa, Inês C. Ferreira, Verónica Pörtner, Hans-Otto Duarte, Carlos M. Levin, Lisa A. Rosa, Rui |
author2_role |
author author author author author author author |
dc.contributor.author.fl_str_mv |
Sampaio, Eduardo Santos, Catarina Rosa, Inês C. Ferreira, Verónica Pörtner, Hans-Otto Duarte, Carlos M. Levin, Lisa A. Rosa, Rui |
description |
Over the past decades, three major challenges to marine life have emerged as a consequence of anthropogenic emissions: ocean warming, acidification and oxygen loss. While most experimental research has targeted the first two stressors, the last remains comparatively neglected. Here, we implemented sequential hierarchical mixed-model meta-analyses (721 control–treatment comparisons) to compare the impacts of oxygen conditions associated with the current and continuously intensifying hypoxic events (1–3.5 O2 mg l−1 ) with those experimentally yielded by ocean warming (+4 °C) and acidification (−0.4 units) conditions on the basis of IPCC projections (RCP 8.5) for 2100. In contrast to warming and acidification, hypoxic events elicited consistent negative effects relative to control biological performance—survival (–33%), abundance (–65%), development (–51%), metabolism (–33%), growth (–24%) and reproduction (–39%)—across the taxonomic groups (mollusks, crustaceans and fish), ontogenetic stages and climate regions studied. Our findings call for a refocus of global change experimental studies, integrating oxygen concentration drivers as a key factor of ocean change. Given potential combined effects, multistressor designs including gradual and extreme changes are further warranted to fully disclose the future impacts of ocean oxygen loss, warming and acidification. |
publishDate |
2021 |
dc.date.none.fl_str_mv |
2021-01-11 |
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/10316/98640 http://hdl.handle.net/10316/98640 https://doi.org/10.1038/s41559-020-01370-3 |
url |
http://hdl.handle.net/10316/98640 https://doi.org/10.1038/s41559-020-01370-3 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
2397-334X cv-prod-2294470 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
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 |
reponame_str |
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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