Long-term iceshelf-covered meiobenthic communities of the Antarctic continental shelf resemble those of the deep sea
Since strong regional warming has led to the disintegration of huge parts of the Larsen A and B ice shelves east of the Antarctic Peninsula in 1995 and 2002, meiofaunal communities covered by ice shelves for thousands of years could be investigated for the first time. Based on a dataset of more than...
Published in: | Marine Biodiversity |
---|---|
Main Authors: | , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
2015
|
Subjects: | |
Online Access: | https://biblio.ugent.be/publication/7024458 http://hdl.handle.net/1854/LU-7024458 https://doi.org/10.1007/s12526-014-0284-6 https://biblio.ugent.be/publication/7024458/file/7024525 |
id |
ftunivgent:oai:archive.ugent.be:7024458 |
---|---|
record_format |
openpolar |
spelling |
ftunivgent:oai:archive.ugent.be:7024458 2023-06-11T04:05:39+02:00 Long-term iceshelf-covered meiobenthic communities of the Antarctic continental shelf resemble those of the deep sea Rose, Armin Ingels, Jeroen Raes, Maarten Vanreusel, Ann Arbizu, Pedro M 2015 application/pdf https://biblio.ugent.be/publication/7024458 http://hdl.handle.net/1854/LU-7024458 https://doi.org/10.1007/s12526-014-0284-6 https://biblio.ugent.be/publication/7024458/file/7024525 eng eng https://biblio.ugent.be/publication/7024458 http://hdl.handle.net/1854/LU-7024458 http://dx.doi.org/10.1007/s12526-014-0284-6 https://biblio.ugent.be/publication/7024458/file/7024525 No license (in copyright) info:eu-repo/semantics/restrictedAccess MARINE BIODIVERSITY ISSN: 1867-1616 Earth and Environmental Sciences MEIOFAUNA COMMUNITIES SPECIES-DIVERSITY WESTERN WEDDELL SEA SOUTHERN-OCEAN BENTHOS ROSS ICE SHELF Deep sea ANDEEP 2 Larsen B Larsen A Climate change Iceshelf break-up Antarctic Peninsula Metazoan meiofauna HARPACTICOIDA CRUSTACEA NEMATODE COMMUNITIES ORGANIC-MATTER DEPTH TRANSECT ABYSSAL-PLAIN journalArticle info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2015 ftunivgent https://doi.org/10.1007/s12526-014-0284-6 2023-05-10T22:25:55Z Since strong regional warming has led to the disintegration of huge parts of the Larsen A and B ice shelves east of the Antarctic Peninsula in 1995 and 2002, meiofaunal communities covered by ice shelves for thousands of years could be investigated for the first time. Based on a dataset of more than 230,000 individuals, meiobenthic higher taxa diversity and composition of Larsen continental shelf stations were compared to those of deep-sea stations in the Western Weddell Sea to see whether the food-limiting conditions in the deep sea and the food-poor shelf regime at times of iceshelf coverage has resulted in similar meiobenthic communities, on the premises that food availability is the main driver of meiobenthic assemblages. We show here that this is indeed the case; in terms of meiobenthic communities, there is greater similarity between the deep sea and the inner Larsen embayments than there is similarity between the deep sea and the former Larsen B iceshelf edge and the open continental shelf. We also show that resemblance to Antarctic deep-sea meiofaunal communities was indeed significantly higher for communities of the innermost Larsen B area than for those from intermediate parts of Larsen A and B. Similarity between communities from intermediate parts and the deep sea was again higher than between those of the ice-edge and the open shelf. Meiofaunal densities were low at the inner parts of Larsen A and B, and comparable to deep-sea densities, again likely owing to the low food supply at both habitats. We suggest that meiobenthic communities have not yet recovered from the food-limiting conditions present at the time of iceshelf coverage. Meiofaunal diversity on the other hand seemed driven by sediment structure, being higher in coarser sediments. Article in Journal/Newspaper Antarc* Antarctic Antarctic Peninsula Ice Shelf Ice Shelves Ross Ice Shelf Southern Ocean Weddell Sea Ghent University Academic Bibliography Antarctic Southern Ocean The Antarctic Antarctic Peninsula Weddell Sea Ross Ice Shelf Weddell Marine Biodiversity 45 4 743 762 |
institution |
Open Polar |
collection |
Ghent University Academic Bibliography |
op_collection_id |
ftunivgent |
language |
English |
topic |
Earth and Environmental Sciences MEIOFAUNA COMMUNITIES SPECIES-DIVERSITY WESTERN WEDDELL SEA SOUTHERN-OCEAN BENTHOS ROSS ICE SHELF Deep sea ANDEEP 2 Larsen B Larsen A Climate change Iceshelf break-up Antarctic Peninsula Metazoan meiofauna HARPACTICOIDA CRUSTACEA NEMATODE COMMUNITIES ORGANIC-MATTER DEPTH TRANSECT ABYSSAL-PLAIN |
spellingShingle |
Earth and Environmental Sciences MEIOFAUNA COMMUNITIES SPECIES-DIVERSITY WESTERN WEDDELL SEA SOUTHERN-OCEAN BENTHOS ROSS ICE SHELF Deep sea ANDEEP 2 Larsen B Larsen A Climate change Iceshelf break-up Antarctic Peninsula Metazoan meiofauna HARPACTICOIDA CRUSTACEA NEMATODE COMMUNITIES ORGANIC-MATTER DEPTH TRANSECT ABYSSAL-PLAIN Rose, Armin Ingels, Jeroen Raes, Maarten Vanreusel, Ann Arbizu, Pedro M Long-term iceshelf-covered meiobenthic communities of the Antarctic continental shelf resemble those of the deep sea |
topic_facet |
Earth and Environmental Sciences MEIOFAUNA COMMUNITIES SPECIES-DIVERSITY WESTERN WEDDELL SEA SOUTHERN-OCEAN BENTHOS ROSS ICE SHELF Deep sea ANDEEP 2 Larsen B Larsen A Climate change Iceshelf break-up Antarctic Peninsula Metazoan meiofauna HARPACTICOIDA CRUSTACEA NEMATODE COMMUNITIES ORGANIC-MATTER DEPTH TRANSECT ABYSSAL-PLAIN |
description |
Since strong regional warming has led to the disintegration of huge parts of the Larsen A and B ice shelves east of the Antarctic Peninsula in 1995 and 2002, meiofaunal communities covered by ice shelves for thousands of years could be investigated for the first time. Based on a dataset of more than 230,000 individuals, meiobenthic higher taxa diversity and composition of Larsen continental shelf stations were compared to those of deep-sea stations in the Western Weddell Sea to see whether the food-limiting conditions in the deep sea and the food-poor shelf regime at times of iceshelf coverage has resulted in similar meiobenthic communities, on the premises that food availability is the main driver of meiobenthic assemblages. We show here that this is indeed the case; in terms of meiobenthic communities, there is greater similarity between the deep sea and the inner Larsen embayments than there is similarity between the deep sea and the former Larsen B iceshelf edge and the open continental shelf. We also show that resemblance to Antarctic deep-sea meiofaunal communities was indeed significantly higher for communities of the innermost Larsen B area than for those from intermediate parts of Larsen A and B. Similarity between communities from intermediate parts and the deep sea was again higher than between those of the ice-edge and the open shelf. Meiofaunal densities were low at the inner parts of Larsen A and B, and comparable to deep-sea densities, again likely owing to the low food supply at both habitats. We suggest that meiobenthic communities have not yet recovered from the food-limiting conditions present at the time of iceshelf coverage. Meiofaunal diversity on the other hand seemed driven by sediment structure, being higher in coarser sediments. |
format |
Article in Journal/Newspaper |
author |
Rose, Armin Ingels, Jeroen Raes, Maarten Vanreusel, Ann Arbizu, Pedro M |
author_facet |
Rose, Armin Ingels, Jeroen Raes, Maarten Vanreusel, Ann Arbizu, Pedro M |
author_sort |
Rose, Armin |
title |
Long-term iceshelf-covered meiobenthic communities of the Antarctic continental shelf resemble those of the deep sea |
title_short |
Long-term iceshelf-covered meiobenthic communities of the Antarctic continental shelf resemble those of the deep sea |
title_full |
Long-term iceshelf-covered meiobenthic communities of the Antarctic continental shelf resemble those of the deep sea |
title_fullStr |
Long-term iceshelf-covered meiobenthic communities of the Antarctic continental shelf resemble those of the deep sea |
title_full_unstemmed |
Long-term iceshelf-covered meiobenthic communities of the Antarctic continental shelf resemble those of the deep sea |
title_sort |
long-term iceshelf-covered meiobenthic communities of the antarctic continental shelf resemble those of the deep sea |
publishDate |
2015 |
url |
https://biblio.ugent.be/publication/7024458 http://hdl.handle.net/1854/LU-7024458 https://doi.org/10.1007/s12526-014-0284-6 https://biblio.ugent.be/publication/7024458/file/7024525 |
geographic |
Antarctic Southern Ocean The Antarctic Antarctic Peninsula Weddell Sea Ross Ice Shelf Weddell |
geographic_facet |
Antarctic Southern Ocean The Antarctic Antarctic Peninsula Weddell Sea Ross Ice Shelf Weddell |
genre |
Antarc* Antarctic Antarctic Peninsula Ice Shelf Ice Shelves Ross Ice Shelf Southern Ocean Weddell Sea |
genre_facet |
Antarc* Antarctic Antarctic Peninsula Ice Shelf Ice Shelves Ross Ice Shelf Southern Ocean Weddell Sea |
op_source |
MARINE BIODIVERSITY ISSN: 1867-1616 |
op_relation |
https://biblio.ugent.be/publication/7024458 http://hdl.handle.net/1854/LU-7024458 http://dx.doi.org/10.1007/s12526-014-0284-6 https://biblio.ugent.be/publication/7024458/file/7024525 |
op_rights |
No license (in copyright) info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1007/s12526-014-0284-6 |
container_title |
Marine Biodiversity |
container_volume |
45 |
container_issue |
4 |
container_start_page |
743 |
op_container_end_page |
762 |
_version_ |
1768377217794965504 |