Revealing higher than expected meiofaunal diversity in Antarctic sediments: a metabarcoding approach
Autor(a) principal: | |
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Data de Publicação: | 2018 |
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/10400.1/11607 |
Resumo: | An increasing number of studies are showing that Antarctic mega- and macrofauna are highly diverse, however, little is known about meiofaunal biodiversity in sediment communities, which are a vital part of a healthy and functional ecosystem. This is the first study to analyse community DNA (targeting meiofauna) using metabarcoding to investigate biodiversity levels in sediment communities of the Antarctic Peninsula. The results show that almost all of the meiofaunal biodiversity in the benthic habitat has yet to be characterised, levels of biodiversity were higher than expected and similar to temperate regions, albeit with the existence of potentially new and locally adapted species never described before at the molecular level. The Rothera meiofaunal sample sites showed four dominant eukaryotic groups, the nematodes, arthropods, platyhelminthes, and the annelids; some of which could comprise species complexes. Comparisons with deep-sea data from the same region suggest little exchange of Operational Taxonomic Units (OTUs) between depths with the nematodes prevalent at all depths, but sharing the shallow water benthos with the copepods. This study provides a preliminary analysis of benthic Antarctic Peninsula meiofauna using high throughput sequencing which substantiates how little is known on the biodiversity of one of the most diverse, yet underexplored communities of the Antarctic: the benthos. |
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Revealing higher than expected meiofaunal diversity in Antarctic sediments: a metabarcoding approachFeeding EcologyPeninsulaCommunityBiodiversityNematodesPatternsShelfVulnerabilityVariabilityMeiobenthosAn increasing number of studies are showing that Antarctic mega- and macrofauna are highly diverse, however, little is known about meiofaunal biodiversity in sediment communities, which are a vital part of a healthy and functional ecosystem. This is the first study to analyse community DNA (targeting meiofauna) using metabarcoding to investigate biodiversity levels in sediment communities of the Antarctic Peninsula. The results show that almost all of the meiofaunal biodiversity in the benthic habitat has yet to be characterised, levels of biodiversity were higher than expected and similar to temperate regions, albeit with the existence of potentially new and locally adapted species never described before at the molecular level. The Rothera meiofaunal sample sites showed four dominant eukaryotic groups, the nematodes, arthropods, platyhelminthes, and the annelids; some of which could comprise species complexes. Comparisons with deep-sea data from the same region suggest little exchange of Operational Taxonomic Units (OTUs) between depths with the nematodes prevalent at all depths, but sharing the shallow water benthos with the copepods. This study provides a preliminary analysis of benthic Antarctic Peninsula meiofauna using high throughput sequencing which substantiates how little is known on the biodiversity of one of the most diverse, yet underexplored communities of the Antarctic: the benthos.NERC within the Polar Sciences for Planet Earth Programme; NERC Antarctic Funding Initiative Collaborative Gearing Scheme [57]; CCMAR from the Portuguese Science Foundation [FCT.UID/Multi/04326/2013]; Portuguese Foundation for Science and Technology (FCT) [SFRH/BPD/80447/2014]; European Community Marie Curie International Incoming Fellowship project MARMEDIV [253251]Nature Publishing GroupSapientiaFonseca, V. G.Sinniger, F.Gaspar, J. M.Quince, C.Creer, S.Power, Deborah M.Peck, Lloyd S.Clark, Melody S.2018-12-07T14:53:38Z2018-032018-03-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.1/11607eng2045-232210.1038/s41598-017-06687-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:RCAAP2023-07-24T10:23:27Zoai:sapientia.ualg.pt:10400.1/11607Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T20:03:05.517672Repositório 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 |
Revealing higher than expected meiofaunal diversity in Antarctic sediments: a metabarcoding approach |
title |
Revealing higher than expected meiofaunal diversity in Antarctic sediments: a metabarcoding approach |
spellingShingle |
Revealing higher than expected meiofaunal diversity in Antarctic sediments: a metabarcoding approach Fonseca, V. G. Feeding Ecology Peninsula Community Biodiversity Nematodes Patterns Shelf Vulnerability Variability Meiobenthos |
title_short |
Revealing higher than expected meiofaunal diversity in Antarctic sediments: a metabarcoding approach |
title_full |
Revealing higher than expected meiofaunal diversity in Antarctic sediments: a metabarcoding approach |
title_fullStr |
Revealing higher than expected meiofaunal diversity in Antarctic sediments: a metabarcoding approach |
title_full_unstemmed |
Revealing higher than expected meiofaunal diversity in Antarctic sediments: a metabarcoding approach |
title_sort |
Revealing higher than expected meiofaunal diversity in Antarctic sediments: a metabarcoding approach |
author |
Fonseca, V. G. |
author_facet |
Fonseca, V. G. Sinniger, F. Gaspar, J. M. Quince, C. Creer, S. Power, Deborah M. Peck, Lloyd S. Clark, Melody S. |
author_role |
author |
author2 |
Sinniger, F. Gaspar, J. M. Quince, C. Creer, S. Power, Deborah M. Peck, Lloyd S. Clark, Melody S. |
author2_role |
author author author author author author author |
dc.contributor.none.fl_str_mv |
Sapientia |
dc.contributor.author.fl_str_mv |
Fonseca, V. G. Sinniger, F. Gaspar, J. M. Quince, C. Creer, S. Power, Deborah M. Peck, Lloyd S. Clark, Melody S. |
dc.subject.por.fl_str_mv |
Feeding Ecology Peninsula Community Biodiversity Nematodes Patterns Shelf Vulnerability Variability Meiobenthos |
topic |
Feeding Ecology Peninsula Community Biodiversity Nematodes Patterns Shelf Vulnerability Variability Meiobenthos |
description |
An increasing number of studies are showing that Antarctic mega- and macrofauna are highly diverse, however, little is known about meiofaunal biodiversity in sediment communities, which are a vital part of a healthy and functional ecosystem. This is the first study to analyse community DNA (targeting meiofauna) using metabarcoding to investigate biodiversity levels in sediment communities of the Antarctic Peninsula. The results show that almost all of the meiofaunal biodiversity in the benthic habitat has yet to be characterised, levels of biodiversity were higher than expected and similar to temperate regions, albeit with the existence of potentially new and locally adapted species never described before at the molecular level. The Rothera meiofaunal sample sites showed four dominant eukaryotic groups, the nematodes, arthropods, platyhelminthes, and the annelids; some of which could comprise species complexes. Comparisons with deep-sea data from the same region suggest little exchange of Operational Taxonomic Units (OTUs) between depths with the nematodes prevalent at all depths, but sharing the shallow water benthos with the copepods. This study provides a preliminary analysis of benthic Antarctic Peninsula meiofauna using high throughput sequencing which substantiates how little is known on the biodiversity of one of the most diverse, yet underexplored communities of the Antarctic: the benthos. |
publishDate |
2018 |
dc.date.none.fl_str_mv |
2018-12-07T14:53:38Z 2018-03 2018-03-01T00:00:00Z |
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/10400.1/11607 |
url |
http://hdl.handle.net/10400.1/11607 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
2045-2322 10.1038/s41598-017-06687-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 Publishing Group |
publisher.none.fl_str_mv |
Nature Publishing Group |
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 |
instacron_str |
RCAAP |
institution |
RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
collection |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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1799133265253105664 |