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Phenotypic plasticity in sargassum forests may not counteract projected biomass losses along a broad latitudinal gradient

2022Journal article Open access
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dc.contributor.authorGouvêa, Lidiane
dc.contributor.authorHorta, Paulo A.
dc.contributor.authorFragkopoulou, Eliza
dc.contributor.authorGurgel, Carlos F. D.
dc.contributor.authorPeres, Leticia M. C.
dc.contributor.authorBastos, Eduardo
dc.contributor.authorRamlov, Fernanda
dc.contributor.authorBurle, Giulia
dc.contributor.authorKoerich, Gabrielle
dc.contributor.authorMartins, Cintia D. L.
dc.contributor.authorSerrao, Ester
dc.contributor.authorAssis, Jorge
dc.date.accessioned2022-03-17T14:03:12Z
dc.date.available2023-01-01T01:30:13Z
dc.date.issued2022
dc.description.abstractPhenotypic plasticity and local adaptation can adjust individual responses to environmental changes across species' ranges. Studies addressing the implications of such traits have been underrepresented in the marine environment. Sargassum cymosum represents an ideal model to test phenotypic plasticity, as populations along the southwestern Atlantic Ocean display a sharp decrease in abundance toward distributional range limits. We (1) characterized the macroecological environment of S. cymosum across a latitudinal gradient, (2) evaluated potential differences in ecophysiological adjustments (biomass, photosynthetic pigments, phenolic compounds, total soluble sugars and proteins, and carbon-nitrogen-CN-content), and (3) tested for differences in thermal tolerance based on time series analyses produced from the present to contrasting representative concentration pathways scenarios (RCP) of future climate changes. Our results showed distinct macroecological environments, corresponding to tropical and warm temperate conditions, driving biomass and ecophysiological adjustments of S. cymosum. Populations from the two environments displayed contrasting thermal tolerances, with tropical individuals better coping with thermal stress when compared to more temperate ones (lethal temperatures of 33 degrees C vs. 30 degrees C); yet both populations lose biomass in response to increasing thermal stress while increasing secondary metabolites (for example, carotenoids and phenolic compounds) and decrease chlorophyll's content, Fv/Fm, total soluble sugars concentration and CN ratio, owing to oxidative stress. Despite evidence for phenotypic plasticity, significant future losses might occur in both tropical and warm temperate populations, particularly under the no mitigation RCP scenario, also known as the business as usual (that is, 8.5). In this context, broad compliance with the Paris Agreement might counteract projected impacts of climate change, safeguarding Sargassum forests in the years to come.pt_PT
dc.description.sponsorshipThis study was supported by grants from Boticario Foundation, FAPESC-Foundation Support Research and Innovation in the State of Santa Catarina, Capes Higher Education Personnel Improvement Coordination, CNPq-National Council for Scientific and Technological Development, Petrobras Ambiental, REBENTOS-Habitat monitoring network coastal Benthic and ProspecMar-Islands Sustainable Prospecting in Ocean Islands: Biodiversity, Chemistry, Ecology and Biotechnology, Rede Coral Vivo, REDEALGAS, a Pew Marine Fellowship, the Foundation for Science and Technology (FCT) of Portugal via SFRH/BSAB/150485/2019, SFRH/BD/144878/2019, UID/Multi/04326/2019, PTDC/BIA-CBI/6515/2020 and the transitional norm DL57/2016/CP1361/CT0035. LPG received a doctorate scholarship (88882.438723/2019-01) from Capes. CFDG thanks CNPq grants PQ-309658/2016-0and306304/2019-8. PAH thanks CAPES-Senior Visitor, CAPESPrInt 310793/2018-01, CNPq-PVE 407365/2013-3, CNPq-Universal 426215/2016-8 and CNPq-PQ308537/2019-0. GK received a master's scholarship from CAPES.pt_PT
dc.description.versioninfo:eu-repo/semantics/submittedVersionpt_PT
dc.identifier.doi10.1007/s10021-022-00738-9pt_PT
dc.identifier.issn1432-9840
dc.identifier.urihttp://hdl.handle.net/10400.1/17693
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherSpringerpt_PT
dc.relationHotspots de biodiversidade genética em florestas marinhas
dc.relationPotential consequences of future climate changes for marine forest gene pools
dc.relationCentre of Marine Sciences
dc.relationNot Available
dc.subjectCenter-edge populationspt_PT
dc.subjectClimate changept_PT
dc.subjectExperimental essayspt_PT
dc.subjectGlobal warmingpt_PT
dc.subjectMarine heatwavept_PT
dc.subjectPhysiological performancept_PT
dc.subjectSargassum cymosumpt_PT
dc.titlePhenotypic plasticity in sargassum forests may not counteract projected biomass losses along a broad latitudinal gradientpt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleHotspots de biodiversidade genética em florestas marinhas
oaire.awardTitlePotential consequences of future climate changes for marine forest gene pools
oaire.awardTitleCentre of Marine Sciences
oaire.awardTitleNot Available
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/OE/SFRH%2FBSAB%2F150485%2F2019/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/OE/SFRH%2FBD%2F144878%2F2019/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UID%2FMulti%2F04326%2F2019/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/3599-PPCDT/PTDC%2FBIA-CBI%2F6515%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/DL 57%2F2016/DL 57%2F2016%2FCP1361%2FCT0035/PT
oaire.citation.titleEcosystemspt_PT
oaire.fundingStreamOE
oaire.fundingStreamOE
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream3599-PPCDT
oaire.fundingStreamDL 57/2016
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person.familyNameFragkopoulou
person.familyNameSerrao
person.familyNameAssis
person.givenNameLidiane
person.givenNameEliza
person.givenNameEster A.
person.givenNameJorge
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person.identifier.orcid0000-0002-0557-3954
person.identifier.orcid0000-0003-1316-658X
person.identifier.orcid0000-0002-6624-4820
person.identifier.ridG-9688-2012
person.identifier.scopus-author-id55500349800
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project.funder.identifierhttp://doi.org/10.13039/501100001871
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project.funder.nameFundação para a Ciência e a Tecnologia
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rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
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