Major loss of coralline algal diversity in response to ocean acidification
International audience Calcified coralline algae are ecologically important in rocky habitats in the marine photic zone worldwide and there is growing concern that ocean acidification will severely impact them. Laboratory studies of these algae in simulated ocean acidification conditions have reveal...
Published in: | Global Change Biology |
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Online Access: | https://hal.sorbonne-universite.fr/hal-03290390 https://hal.sorbonne-universite.fr/hal-03290390/document https://hal.sorbonne-universite.fr/hal-03290390/file/gcb.15757.pdf https://doi.org/10.1111/gcb.15757 |
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ftunivantilles:oai:HAL:hal-03290390v1 2024-05-19T07:46:28+00:00 Major loss of coralline algal diversity in response to ocean acidification Peña, Viviana Harvey, Ben, P Agostini, Sylvain Porzio, Lucia Milazzo, Marco Horta, Paulo Le Gall, Line Hall‐spencer, Jason, M Universidade da Coruña Université de Tsukuba = University of Tsukuba Dipartimento di Scienze della Terra e del Mare Palermo (DiSTeM) Università degli studi di Palermo - University of Palermo Universidade Federal de Santa Catarina = Federal University of Santa Catarina Florianópolis (UFSC) Institut de Systématique, Evolution, Biodiversité (ISYEB ) Muséum national d'Histoire naturelle (MNHN)-École Pratique des Hautes Études (EPHE) Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université des Antilles (UA) Plymouth University 2021 https://hal.sorbonne-universite.fr/hal-03290390 https://hal.sorbonne-universite.fr/hal-03290390/document https://hal.sorbonne-universite.fr/hal-03290390/file/gcb.15757.pdf https://doi.org/10.1111/gcb.15757 en eng HAL CCSD Wiley info:eu-repo/semantics/altIdentifier/doi/10.1111/gcb.15757 hal-03290390 https://hal.sorbonne-universite.fr/hal-03290390 https://hal.sorbonne-universite.fr/hal-03290390/document https://hal.sorbonne-universite.fr/hal-03290390/file/gcb.15757.pdf doi:10.1111/gcb.15757 info:eu-repo/semantics/OpenAccess ISSN: 1354-1013 EISSN: 1365-2486 Global Change Biology https://hal.sorbonne-universite.fr/hal-03290390 Global Change Biology, In press, ⟨10.1111/gcb.15757⟩ adaptation biodiversity climate change ecosystem engineers evolutionary history macroalgae psbA seaweeds [SDV.EE.BIO]Life Sciences [q-bio]/Ecology environment/Bioclimatology [SDE.BE]Environmental Sciences/Biodiversity and Ecology [SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography info:eu-repo/semantics/article Journal articles 2021 ftunivantilles https://doi.org/10.1111/gcb.15757 2024-04-25T00:03:22Z International audience Calcified coralline algae are ecologically important in rocky habitats in the marine photic zone worldwide and there is growing concern that ocean acidification will severely impact them. Laboratory studies of these algae in simulated ocean acidification conditions have revealed wide variability in growth, photosynthesis and calcification responses, making it difficult to assess their future biodiversity, abundance and contribution to ecosystem function. Here, we apply molecular systematic tools to assess the impact of natural gradients in seawater carbonate chemistry on the biodiversity of coralline algae in the Mediterranean and the NW Pacific, link this to their evolutionary history and evaluate their potential future biodiversity and abundance. We found a decrease in the taxonomic diversity of coralline algae with increasing acidification with more than half of the species lost in high pCO2 conditions. Sporolithales is the oldest order (Lower Cretaceous) and diversified when ocean chemistry favoured low Mg calcite deposition; it is less diverse today and was the most sensitive to ocean acidification. Corallinales were also reduced in cover and diversity but several species survived at high pCO2; it is the most recent order of coralline algae and originated when ocean chemistry favoured aragonite and high Mg calcite deposition. The sharp decline in cover and thickness of coralline algal carbonate deposits at high pCO2 highlighted their lower fitness in response to ocean acidification. Reductions in CO2 emissions are needed to limit the risk of losing coralline algal diversity. Article in Journal/Newspaper Ocean acidification Université des Antilles (UAG): HAL Global Change Biology |
institution |
Open Polar |
collection |
Université des Antilles (UAG): HAL |
op_collection_id |
ftunivantilles |
language |
English |
topic |
adaptation biodiversity climate change ecosystem engineers evolutionary history macroalgae psbA seaweeds [SDV.EE.BIO]Life Sciences [q-bio]/Ecology environment/Bioclimatology [SDE.BE]Environmental Sciences/Biodiversity and Ecology [SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography |
spellingShingle |
adaptation biodiversity climate change ecosystem engineers evolutionary history macroalgae psbA seaweeds [SDV.EE.BIO]Life Sciences [q-bio]/Ecology environment/Bioclimatology [SDE.BE]Environmental Sciences/Biodiversity and Ecology [SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography Peña, Viviana Harvey, Ben, P Agostini, Sylvain Porzio, Lucia Milazzo, Marco Horta, Paulo Le Gall, Line Hall‐spencer, Jason, M Major loss of coralline algal diversity in response to ocean acidification |
topic_facet |
adaptation biodiversity climate change ecosystem engineers evolutionary history macroalgae psbA seaweeds [SDV.EE.BIO]Life Sciences [q-bio]/Ecology environment/Bioclimatology [SDE.BE]Environmental Sciences/Biodiversity and Ecology [SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography |
description |
International audience Calcified coralline algae are ecologically important in rocky habitats in the marine photic zone worldwide and there is growing concern that ocean acidification will severely impact them. Laboratory studies of these algae in simulated ocean acidification conditions have revealed wide variability in growth, photosynthesis and calcification responses, making it difficult to assess their future biodiversity, abundance and contribution to ecosystem function. Here, we apply molecular systematic tools to assess the impact of natural gradients in seawater carbonate chemistry on the biodiversity of coralline algae in the Mediterranean and the NW Pacific, link this to their evolutionary history and evaluate their potential future biodiversity and abundance. We found a decrease in the taxonomic diversity of coralline algae with increasing acidification with more than half of the species lost in high pCO2 conditions. Sporolithales is the oldest order (Lower Cretaceous) and diversified when ocean chemistry favoured low Mg calcite deposition; it is less diverse today and was the most sensitive to ocean acidification. Corallinales were also reduced in cover and diversity but several species survived at high pCO2; it is the most recent order of coralline algae and originated when ocean chemistry favoured aragonite and high Mg calcite deposition. The sharp decline in cover and thickness of coralline algal carbonate deposits at high pCO2 highlighted their lower fitness in response to ocean acidification. Reductions in CO2 emissions are needed to limit the risk of losing coralline algal diversity. |
author2 |
Universidade da Coruña Université de Tsukuba = University of Tsukuba Dipartimento di Scienze della Terra e del Mare Palermo (DiSTeM) Università degli studi di Palermo - University of Palermo Universidade Federal de Santa Catarina = Federal University of Santa Catarina Florianópolis (UFSC) Institut de Systématique, Evolution, Biodiversité (ISYEB ) Muséum national d'Histoire naturelle (MNHN)-École Pratique des Hautes Études (EPHE) Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université des Antilles (UA) Plymouth University |
format |
Article in Journal/Newspaper |
author |
Peña, Viviana Harvey, Ben, P Agostini, Sylvain Porzio, Lucia Milazzo, Marco Horta, Paulo Le Gall, Line Hall‐spencer, Jason, M |
author_facet |
Peña, Viviana Harvey, Ben, P Agostini, Sylvain Porzio, Lucia Milazzo, Marco Horta, Paulo Le Gall, Line Hall‐spencer, Jason, M |
author_sort |
Peña, Viviana |
title |
Major loss of coralline algal diversity in response to ocean acidification |
title_short |
Major loss of coralline algal diversity in response to ocean acidification |
title_full |
Major loss of coralline algal diversity in response to ocean acidification |
title_fullStr |
Major loss of coralline algal diversity in response to ocean acidification |
title_full_unstemmed |
Major loss of coralline algal diversity in response to ocean acidification |
title_sort |
major loss of coralline algal diversity in response to ocean acidification |
publisher |
HAL CCSD |
publishDate |
2021 |
url |
https://hal.sorbonne-universite.fr/hal-03290390 https://hal.sorbonne-universite.fr/hal-03290390/document https://hal.sorbonne-universite.fr/hal-03290390/file/gcb.15757.pdf https://doi.org/10.1111/gcb.15757 |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_source |
ISSN: 1354-1013 EISSN: 1365-2486 Global Change Biology https://hal.sorbonne-universite.fr/hal-03290390 Global Change Biology, In press, ⟨10.1111/gcb.15757⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1111/gcb.15757 hal-03290390 https://hal.sorbonne-universite.fr/hal-03290390 https://hal.sorbonne-universite.fr/hal-03290390/document https://hal.sorbonne-universite.fr/hal-03290390/file/gcb.15757.pdf doi:10.1111/gcb.15757 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1111/gcb.15757 |
container_title |
Global Change Biology |
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1799486674081677312 |