Rapid tropicalization evidence of subtidal seaweed assemblages along a coastal transitional zone
Autor(a) principal: | |
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Data de Publicação: | 2023 |
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/10400.8/8969 |
Resumo: | Anthropogenic 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. |
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Rapid tropicalization evidence of subtidal seaweed assemblages along a coastal transitional zoneAnthropogenic climate changeSeawater warmingCoastal communities transformationPortuguese coastMarine speciesTropicalizationAnthropogenic 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.NatureIC-OnlineAzevedo, Jonas deFranco, Joao N.Vale, Cândida G.Lemos, Marco F.L.Arenas, Francisco2023-11-29T10:39:47Z20232023-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.8/8969engde 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-x2045-232210.1038/s41598-023-38514-xinfo: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:RCAAP2024-01-17T15:58:36Zoai:iconline.ipleiria.pt:10400.8/8969Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T01:51:34.143520Repositório 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 |
Rapid tropicalization evidence of subtidal seaweed assemblages along a coastal transitional zone |
title |
Rapid tropicalization evidence of subtidal seaweed assemblages along a coastal transitional zone |
spellingShingle |
Rapid tropicalization evidence of subtidal seaweed assemblages along a coastal transitional zone Azevedo, Jonas de Anthropogenic climate change Seawater warming Coastal communities transformation Portuguese coast Marine species Tropicalization |
title_short |
Rapid tropicalization evidence of subtidal seaweed assemblages along a coastal transitional zone |
title_full |
Rapid tropicalization evidence of subtidal seaweed assemblages along a coastal transitional zone |
title_fullStr |
Rapid tropicalization evidence of subtidal seaweed assemblages along a coastal transitional zone |
title_full_unstemmed |
Rapid tropicalization evidence of subtidal seaweed assemblages along a coastal transitional zone |
title_sort |
Rapid tropicalization evidence of subtidal seaweed assemblages along a coastal transitional zone |
author |
Azevedo, Jonas de |
author_facet |
Azevedo, Jonas de Franco, Joao N. Vale, Cândida G. Lemos, Marco F.L. Arenas, Francisco |
author_role |
author |
author2 |
Franco, Joao N. Vale, Cândida G. Lemos, Marco F.L. Arenas, Francisco |
author2_role |
author author author author |
dc.contributor.none.fl_str_mv |
IC-Online |
dc.contributor.author.fl_str_mv |
Azevedo, Jonas de Franco, Joao N. Vale, Cândida G. Lemos, Marco F.L. Arenas, Francisco |
dc.subject.por.fl_str_mv |
Anthropogenic climate change Seawater warming Coastal communities transformation Portuguese coast Marine species Tropicalization |
topic |
Anthropogenic climate change Seawater warming Coastal communities transformation Portuguese coast Marine species Tropicalization |
description |
Anthropogenic 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. |
publishDate |
2023 |
dc.date.none.fl_str_mv |
2023-11-29T10:39:47Z 2023 2023-01-01T00:00:00Z |
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/10400.8/8969 |
url |
http://hdl.handle.net/10400.8/8969 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
de 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-x 2045-2322 10.1038/s41598-023-38514-x |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Nature |
publisher.none.fl_str_mv |
Nature |
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 |
institution |
RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
collection |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository.name.fl_str_mv |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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