A pioneer morphological and genetic study of the intertidal fauna of the Gerlache Strait (Antarctic Peninsula)
The underexplored intertidal ecosystems of Antarctica are facing rapid changes in important environmental factors. Associated with temperature increase, reduction in coastal ice will soon expose new ice-free areas that will be colonized by local or distant biota. To enable detection of future change...
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ftunivbruxelles:oai:dipot.ulb.ac.be:2013/362549 2024-04-28T07:56:15+00:00 A pioneer morphological and genetic study of the intertidal fauna of the Gerlache Strait (Antarctic Peninsula) Jossart, Quentin Bauman, David Moreau, Camille Saucède, Thomas Christiansen, Henrik Brasier, Madeleine M.J. Convey, Peter Downey, Rachel Figuerola, Blanca Martin, Patrick Norenburg, Jon Rosenfeld, Sebastian Verheye, Marie Danis, Bruno 2023-04-01 1 full-text file(s): application/pdf http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/362549 https://dipot.ulb.ac.be/dspace/bitstream/2013/362549/3/s10661-023-11066-3.pdf en eng uri/info:doi/10.1007/s10661-023-11066-3 uri/info:pii/11066 uri/info:pmid/36973586 uri/info:scp/85150962858 https://dipot.ulb.ac.be/dspace/bitstream/2013/362549/3/s10661-023-11066-3.pdf http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/362549 1 full-text file(s): info:eu-repo/semantics/openAccess Environmental monitoring and assessment, 195 (4 Océanographie biologique Benthic ecology Community structure DNA barcoding Seashore Southern Ocean info:eu-repo/semantics/article info:ulb-repo/semantics/articlePeerReview info:ulb-repo/semantics/openurl/article 2023 ftunivbruxelles 2024-04-10T00:10:31Z The underexplored intertidal ecosystems of Antarctica are facing rapid changes in important environmental factors. Associated with temperature increase, reduction in coastal ice will soon expose new ice-free areas that will be colonized by local or distant biota. To enable detection of future changes in faunal composition, a biodiversity baseline is urgently required. Here, we evaluated intertidal faunal diversity at 13 locations around the Gerlache Strait (western Antarctic Peninsula), using a combination of a quadrat approach, morphological identification and genetic characterization. Our data highlight a community structure comprising four generally distributed and highly abundant species (the flatworm Obrimoposthia wandeli, the bivalve Kidderia subquadrata, and the gastropods Laevilitorina umbilicata and Laevilitorina caliginosa) as well as 79 rarer and less widely encountered species. The most abundant species thrive in the intertidal zone due to their ability to either survive overwinter in situ or to rapidly colonize this zone when conditions allow. In addition, we confirmed the presence of multiple trophic levels at nearly all locations, suggesting that complex inter-specific interactions occur within these communities. Diversity indices contrasted between sampling locations (from 3 to 32 species) and multivariate approaches identified three main groups. This confirms the importance of environmental heterogeneity in shaping diversity patterns within the investigated area. Finally, we provide the first genetic and photographic baseline of the Antarctic intertidal fauna (106 sequences, 137 macrophotographs), as well as preliminary insights on the biogeography of several species. Taken together, these results provide a timely catalyst to assess the diversity and to inform studies of the potential resilience of these intertidal communities. SCOPUS: ar.j info:eu-repo/semantics/published Article in Journal/Newspaper Antarc* Antarctic Antarctic Peninsula Antarctica Southern Ocean DI-fusion : dépôt institutionnel de l'Université libre de Bruxelles (ULB) |
institution |
Open Polar |
collection |
DI-fusion : dépôt institutionnel de l'Université libre de Bruxelles (ULB) |
op_collection_id |
ftunivbruxelles |
language |
English |
topic |
Océanographie biologique Benthic ecology Community structure DNA barcoding Seashore Southern Ocean |
spellingShingle |
Océanographie biologique Benthic ecology Community structure DNA barcoding Seashore Southern Ocean Jossart, Quentin Bauman, David Moreau, Camille Saucède, Thomas Christiansen, Henrik Brasier, Madeleine M.J. Convey, Peter Downey, Rachel Figuerola, Blanca Martin, Patrick Norenburg, Jon Rosenfeld, Sebastian Verheye, Marie Danis, Bruno A pioneer morphological and genetic study of the intertidal fauna of the Gerlache Strait (Antarctic Peninsula) |
topic_facet |
Océanographie biologique Benthic ecology Community structure DNA barcoding Seashore Southern Ocean |
description |
The underexplored intertidal ecosystems of Antarctica are facing rapid changes in important environmental factors. Associated with temperature increase, reduction in coastal ice will soon expose new ice-free areas that will be colonized by local or distant biota. To enable detection of future changes in faunal composition, a biodiversity baseline is urgently required. Here, we evaluated intertidal faunal diversity at 13 locations around the Gerlache Strait (western Antarctic Peninsula), using a combination of a quadrat approach, morphological identification and genetic characterization. Our data highlight a community structure comprising four generally distributed and highly abundant species (the flatworm Obrimoposthia wandeli, the bivalve Kidderia subquadrata, and the gastropods Laevilitorina umbilicata and Laevilitorina caliginosa) as well as 79 rarer and less widely encountered species. The most abundant species thrive in the intertidal zone due to their ability to either survive overwinter in situ or to rapidly colonize this zone when conditions allow. In addition, we confirmed the presence of multiple trophic levels at nearly all locations, suggesting that complex inter-specific interactions occur within these communities. Diversity indices contrasted between sampling locations (from 3 to 32 species) and multivariate approaches identified three main groups. This confirms the importance of environmental heterogeneity in shaping diversity patterns within the investigated area. Finally, we provide the first genetic and photographic baseline of the Antarctic intertidal fauna (106 sequences, 137 macrophotographs), as well as preliminary insights on the biogeography of several species. Taken together, these results provide a timely catalyst to assess the diversity and to inform studies of the potential resilience of these intertidal communities. SCOPUS: ar.j info:eu-repo/semantics/published |
format |
Article in Journal/Newspaper |
author |
Jossart, Quentin Bauman, David Moreau, Camille Saucède, Thomas Christiansen, Henrik Brasier, Madeleine M.J. Convey, Peter Downey, Rachel Figuerola, Blanca Martin, Patrick Norenburg, Jon Rosenfeld, Sebastian Verheye, Marie Danis, Bruno |
author_facet |
Jossart, Quentin Bauman, David Moreau, Camille Saucède, Thomas Christiansen, Henrik Brasier, Madeleine M.J. Convey, Peter Downey, Rachel Figuerola, Blanca Martin, Patrick Norenburg, Jon Rosenfeld, Sebastian Verheye, Marie Danis, Bruno |
author_sort |
Jossart, Quentin |
title |
A pioneer morphological and genetic study of the intertidal fauna of the Gerlache Strait (Antarctic Peninsula) |
title_short |
A pioneer morphological and genetic study of the intertidal fauna of the Gerlache Strait (Antarctic Peninsula) |
title_full |
A pioneer morphological and genetic study of the intertidal fauna of the Gerlache Strait (Antarctic Peninsula) |
title_fullStr |
A pioneer morphological and genetic study of the intertidal fauna of the Gerlache Strait (Antarctic Peninsula) |
title_full_unstemmed |
A pioneer morphological and genetic study of the intertidal fauna of the Gerlache Strait (Antarctic Peninsula) |
title_sort |
pioneer morphological and genetic study of the intertidal fauna of the gerlache strait (antarctic peninsula) |
publishDate |
2023 |
url |
http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/362549 https://dipot.ulb.ac.be/dspace/bitstream/2013/362549/3/s10661-023-11066-3.pdf |
genre |
Antarc* Antarctic Antarctic Peninsula Antarctica Southern Ocean |
genre_facet |
Antarc* Antarctic Antarctic Peninsula Antarctica Southern Ocean |
op_source |
Environmental monitoring and assessment, 195 (4 |
op_relation |
uri/info:doi/10.1007/s10661-023-11066-3 uri/info:pii/11066 uri/info:pmid/36973586 uri/info:scp/85150962858 https://dipot.ulb.ac.be/dspace/bitstream/2013/362549/3/s10661-023-11066-3.pdf http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/362549 |
op_rights |
1 full-text file(s): info:eu-repo/semantics/openAccess |
_version_ |
1797582569950150656 |