Different Oceanographic Regimes in the Vicinity of the Antarctic Peninsula Reflected in Benthic Nematode Communities.
Marine free-living nematode communities were studied at similar depths (~500 m) at two sides of the Antarctic Peninsula, characterised by different environmental and oceanographic conditions. At the Weddell Sea side, benthic communities are influenced by cold deep-water formation and seasonal sea-ic...
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ftdoajarticles:oai:doaj.org/article:291f52d0a52b4c3690ce674387dcc13b 2023-05-15T13:58:39+02:00 Different Oceanographic Regimes in the Vicinity of the Antarctic Peninsula Reflected in Benthic Nematode Communities. Freija Hauquier Laura Durán Suja Julian Gutt Gritta Veit-Köhler Ann Vanreusel 2015-01-01T00:00:00Z https://doi.org/10.1371/journal.pone.0137527 https://doaj.org/article/291f52d0a52b4c3690ce674387dcc13b EN eng Public Library of Science (PLoS) http://europepmc.org/articles/PMC4565677?pdf=render https://doaj.org/toc/1932-6203 1932-6203 doi:10.1371/journal.pone.0137527 https://doaj.org/article/291f52d0a52b4c3690ce674387dcc13b PLoS ONE, Vol 10, Iss 9, p e0137527 (2015) Medicine R Science Q article 2015 ftdoajarticles https://doi.org/10.1371/journal.pone.0137527 2022-12-31T04:24:20Z Marine free-living nematode communities were studied at similar depths (~500 m) at two sides of the Antarctic Peninsula, characterised by different environmental and oceanographic conditions. At the Weddell Sea side, benthic communities are influenced by cold deep-water formation and seasonal sea-ice conditions, whereas the Drake Passage side experiences milder oceanic conditions and strong dynamics of the Antarctic Circumpolar Current. This resulted in different surface primary productivity, which contrasted with observed benthic pigment patterns and varied according to the area studied: chlorophyll a concentrations (as a proxy for primary production) were high in the Weddell Sea sediments, but low in the surface waters above; this pattern was reversed in the Drake Passage. Differences between areas were largely mirrored by the nematode communities: nematode densities peaked in Weddell stations and showed deeper vertical occurrence in the sediment, associated with deeper penetration of chlorophyll a and indicative of a strong bentho-pelagic coupling. Generic composition showed some similarities across both areas, though differences in the relative contribution of certain genera were noted, together with distinct community shifts with depth in the sediment at all locations. Article in Journal/Newspaper Antarc* Antarctic Antarctic Peninsula Drake Passage Sea ice Weddell Sea Directory of Open Access Journals: DOAJ Articles Antarctic The Antarctic Antarctic Peninsula Weddell Sea Drake Passage Weddell PLOS ONE 10 9 e0137527 |
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Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
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ftdoajarticles |
language |
English |
topic |
Medicine R Science Q |
spellingShingle |
Medicine R Science Q Freija Hauquier Laura Durán Suja Julian Gutt Gritta Veit-Köhler Ann Vanreusel Different Oceanographic Regimes in the Vicinity of the Antarctic Peninsula Reflected in Benthic Nematode Communities. |
topic_facet |
Medicine R Science Q |
description |
Marine free-living nematode communities were studied at similar depths (~500 m) at two sides of the Antarctic Peninsula, characterised by different environmental and oceanographic conditions. At the Weddell Sea side, benthic communities are influenced by cold deep-water formation and seasonal sea-ice conditions, whereas the Drake Passage side experiences milder oceanic conditions and strong dynamics of the Antarctic Circumpolar Current. This resulted in different surface primary productivity, which contrasted with observed benthic pigment patterns and varied according to the area studied: chlorophyll a concentrations (as a proxy for primary production) were high in the Weddell Sea sediments, but low in the surface waters above; this pattern was reversed in the Drake Passage. Differences between areas were largely mirrored by the nematode communities: nematode densities peaked in Weddell stations and showed deeper vertical occurrence in the sediment, associated with deeper penetration of chlorophyll a and indicative of a strong bentho-pelagic coupling. Generic composition showed some similarities across both areas, though differences in the relative contribution of certain genera were noted, together with distinct community shifts with depth in the sediment at all locations. |
format |
Article in Journal/Newspaper |
author |
Freija Hauquier Laura Durán Suja Julian Gutt Gritta Veit-Köhler Ann Vanreusel |
author_facet |
Freija Hauquier Laura Durán Suja Julian Gutt Gritta Veit-Köhler Ann Vanreusel |
author_sort |
Freija Hauquier |
title |
Different Oceanographic Regimes in the Vicinity of the Antarctic Peninsula Reflected in Benthic Nematode Communities. |
title_short |
Different Oceanographic Regimes in the Vicinity of the Antarctic Peninsula Reflected in Benthic Nematode Communities. |
title_full |
Different Oceanographic Regimes in the Vicinity of the Antarctic Peninsula Reflected in Benthic Nematode Communities. |
title_fullStr |
Different Oceanographic Regimes in the Vicinity of the Antarctic Peninsula Reflected in Benthic Nematode Communities. |
title_full_unstemmed |
Different Oceanographic Regimes in the Vicinity of the Antarctic Peninsula Reflected in Benthic Nematode Communities. |
title_sort |
different oceanographic regimes in the vicinity of the antarctic peninsula reflected in benthic nematode communities. |
publisher |
Public Library of Science (PLoS) |
publishDate |
2015 |
url |
https://doi.org/10.1371/journal.pone.0137527 https://doaj.org/article/291f52d0a52b4c3690ce674387dcc13b |
geographic |
Antarctic The Antarctic Antarctic Peninsula Weddell Sea Drake Passage Weddell |
geographic_facet |
Antarctic The Antarctic Antarctic Peninsula Weddell Sea Drake Passage Weddell |
genre |
Antarc* Antarctic Antarctic Peninsula Drake Passage Sea ice Weddell Sea |
genre_facet |
Antarc* Antarctic Antarctic Peninsula Drake Passage Sea ice Weddell Sea |
op_source |
PLoS ONE, Vol 10, Iss 9, p e0137527 (2015) |
op_relation |
http://europepmc.org/articles/PMC4565677?pdf=render https://doaj.org/toc/1932-6203 1932-6203 doi:10.1371/journal.pone.0137527 https://doaj.org/article/291f52d0a52b4c3690ce674387dcc13b |
op_doi |
https://doi.org/10.1371/journal.pone.0137527 |
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PLOS ONE |
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10 |
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9 |
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e0137527 |
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1766267002138132480 |