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Rapid tropicalization evidence of subtidal seaweed assemblages along a coastal transitional zone

2023Journal article Open access
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dc.contributor.authorAzevedo, Jonas de
dc.contributor.authorFranco, Joao N.
dc.contributor.authorVale, Cândida G.
dc.contributor.authorLemos, Marco F.L.
dc.contributor.authorArenas, Francisco
dc.date.accessioned2023-11-29T10:39:47Z
dc.date.available2023-11-29T10:39:47Z
dc.date.issued2023
dc.description.abstractAnthropogenic climate change, particularly seawater warming, is expected to drive quick shifts in marine species distribution transforming coastal communities. These shifts in distribution will be particularly noticeable in biogeographical transition zones. The continental Portuguese coast stretches from north to south along 900 km. Despite this short spatial scale, the strong physical gradient intensified by the Iberian upwelling creates a transition zone where seaweed species from boreal and Lusitanian-Mediterranean origin coexist. On the northern coast, kelp marine forests thrive in the cold, nutrient-rich oceanic waters. In the south, communities resemble Mediterranean-type seaweed assemblages and are dominated by turfs. Recent evidence suggests that in these coastal areas, marine intertidal species are shifting their distribution edges as a result of rising seawater temperatures. Taking advantage of previous abundance data collected in 2012 from subtidal seaweed communities, a new sampling program was carried out in the same regions in 2018 to assess recent changes. The results confirmed the latitudinal gradient in macroalgal assemblages. More importantly we found significant structural and functional changes in a short period of six years, with regional increases of abundance of warm-affinity species, small seaweeds like turfs. Species richness, diversity, and biomass increase, all accompanied by an increase of community temperature index (CTI). Our findings suggest that subtidal seaweed communities in this transitional area have undergone major changes within a few years. Evidence of “fast tropicalization” of the subtidal communities of the Portuguese coast are strong indication of the effects of anthropic climate change over coastal assemblages.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationde Azevedo, J., Franco, J.N., Vale, C.G. et al. Rapid tropicalization evidence of subtidal seaweed assemblages along a coastal transitional zone. Sci Rep 13, 11720 (2023). https://doi.org/10.1038/s41598-023-38514-xpt_PT
dc.identifier.doi10.1038/s41598-023-38514-xpt_PT
dc.identifier.issn2045-2322
dc.identifier.urihttp://hdl.handle.net/10400.8/8969
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherNaturept_PT
dc.relationUNDERSTANTING AND PREDICTING THE IMPACT OF CLIMATE CHANGE ON COASTAL HABITATS
dc.relationLaminariales; engineer specie; seawater temperature; herbivory; disturbance
dc.relationInterdisciplinary Centre of Marine and Environmental Research
dc.relationInterdisciplinary Centre of Marine and Environmental Research
dc.relationMarine and Environmental Sciences Centre
dc.relationMarine and Environmental Sciences Centre
dc.relationAquatic Research Infrastructure Network
dc.relation.publisherversionhttps://www.nature.com/articles/s41598-023-38514-xpt_PT
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectAnthropogenic climate changept_PT
dc.subjectSeawater warmingpt_PT
dc.subjectCoastal communities transformationpt_PT
dc.subjectPortuguese coastpt_PT
dc.subjectMarine speciespt_PT
dc.subjectTropicalizationpt_PT
dc.titleRapid tropicalization evidence of subtidal seaweed assemblages along a coastal transitional zonept_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleUNDERSTANTING AND PREDICTING THE IMPACT OF CLIMATE CHANGE ON COASTAL HABITATS
oaire.awardTitleLaminariales; engineer specie; seawater temperature; herbivory; disturbance
oaire.awardTitleInterdisciplinary Centre of Marine and Environmental Research
oaire.awardTitleInterdisciplinary Centre of Marine and Environmental Research
oaire.awardTitleMarine and Environmental Sciences Centre
oaire.awardTitleMarine and Environmental Sciences Centre
oaire.awardTitleAquatic Research Infrastructure Network
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/Concurso para Financiamento de Projetos de Investigação Científica e Desenvolvimento Tecnológico em Todos os Domínios Científicos - 2017/PTDC%2FBIA-BMA%2F31893%2F2017/PT
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oaire.citation.titleScientific Reportspt_PT
oaire.citation.volume13pt_PT
oaire.fundingStreamConcurso para Financiamento de Projetos de Investigação Científica e Desenvolvimento Tecnológico em Todos os Domínios Científicos - 2017
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person.familyNamede Azevedo
person.familyNameFranco
person.familyNameGomes Vale
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person.givenNameJonas
person.givenNameJoao N
person.givenNameCândida
person.givenNameMarco
person.givenNameFrancisco
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project.funder.identifierhttp://doi.org/10.13039/501100001871
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