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dc.contributor.authorPeña, V
dc.contributor.authorHarvey, BP
dc.contributor.authorAgostini, S
dc.contributor.authorPorzio, L
dc.contributor.authorMilazzo, M
dc.contributor.authorHorta, P
dc.contributor.authorLe Gall, L
dc.contributor.authorHall‐Spencer, JM
dc.date.accessioned2021-08-26T19:06:30Z
dc.date.issued2021-07-16
dc.identifier.issn1354-1013
dc.identifier.issn1365-2486
dc.identifier.othergcb.15757
dc.identifier.urihttp://hdl.handle.net/10026.1/17736
dc.description.abstract

<jats:title>Abstract</jats:title><jats:p>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 <jats:italic>p</jats:italic>CO<jats:sub>2</jats:sub> 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 <jats:italic>p</jats:italic>CO<jats:sub>2</jats:sub>; 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 <jats:italic>p</jats:italic>CO<jats:sub>2</jats:sub> highlighted their lower fitness in response to ocean acidification. Reductions in CO<jats:sub>2</jats:sub> emissions are needed to limit the risk of losing coralline algal diversity.</jats:p>

dc.format.extent4785-4798
dc.format.mediumPrint-Electronic
dc.languageen
dc.language.isoen
dc.publisherWiley
dc.subjectadaptation
dc.subjectbiodiversity
dc.subjectclimate change
dc.subjectecosystem engineers
dc.subjectevolutionary history
dc.subjectmacroalgae
dc.subjectpsbA
dc.subjectseaweeds
dc.titleMajor loss of coralline algal diversity in response to ocean acidification
dc.typejournal-article
dc.typeJournal Article
plymouth.author-urlhttps://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000673906700001&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=11bb513d99f797142bcfeffcc58ea008
plymouth.issue19
plymouth.volume27
plymouth.publication-statusPublished
plymouth.journalGlobal Change Biology
dc.identifier.doi10.1111/gcb.15757
plymouth.organisational-group/Plymouth
plymouth.organisational-group/Plymouth/Faculty of Science and Engineering
plymouth.organisational-group/Plymouth/Faculty of Science and Engineering/School of Biological and Marine Sciences
plymouth.organisational-group/Plymouth/PRIMaRE Publications
plymouth.organisational-group/Plymouth/REF 2021 Researchers by UoA
plymouth.organisational-group/Plymouth/REF 2021 Researchers by UoA/UoA07 Earth Systems and Environmental Sciences
plymouth.organisational-group/Plymouth/Research Groups
plymouth.organisational-group/Plymouth/Research Groups/Marine Institute
plymouth.organisational-group/Plymouth/Users by role
plymouth.organisational-group/Plymouth/Users by role/Academics
dc.publisher.placeEngland
dcterms.dateAccepted2021-06-17
dc.rights.embargodate2021-8-28
dc.identifier.eissn1365-2486
dc.rights.embargoperiodNot known
rioxxterms.versionofrecord10.1111/gcb.15757
rioxxterms.licenseref.urihttp://www.rioxx.net/licenses/all-rights-reserved
rioxxterms.licenseref.startdate2021-07-16
rioxxterms.typeJournal Article/Review


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