Quantitative analysis of soft-bottom polychaetes of the Bellingshausen Sea and Gerlache Strait (Antarctica)
The basin off the Bellingshausen Sea, in contrast to other better known areas such as the Antarctic Peninsula and the Ross and Weddell Seas, has been little investigated due to remoteness and the prevalence of ice for most of the year. The present study focuses on an analysis of polychaetes collecte...
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ftcsic:oai:digital.csic.es:10261/321527 2024-02-11T09:58:12+01:00 Quantitative analysis of soft-bottom polychaetes of the Bellingshausen Sea and Gerlache Strait (Antarctica) Parapar, Julio López-Díaz, Eduardo Gambi, María Cristina Núñez, Jorge Ramos, Ana Antarctic Ocean Bellingshausen Sea 2010 http://hdl.handle.net/10508/7893 http://hdl.handle.net/10261/321527 https://doi.org/10.1007/s00300-010-0927-4 unknown Centro Oceanográfico de Vigo http://link.springer.com/article/10.1007%2Fs00300-010-0927-4 Polar Biology, 34(5). 2010: 715-730 http://hdl.handle.net/10508/7893 http://hdl.handle.net/10261/321527 doi:10.1007/s00300-010-0927-4 1612 open Centro Oceanográfico de Vigo Polychaetes Medio Marino Soft bottoms Benthos Box-corer Distribution BENTART cruises Antarctica research article 2010 ftcsic https://doi.org/10.1007/s00300-010-0927-4 2024-01-16T11:46:30Z The basin off the Bellingshausen Sea, in contrast to other better known areas such as the Antarctic Peninsula and the Ross and Weddell Seas, has been little investigated due to remoteness and the prevalence of ice for most of the year. The present study focuses on an analysis of polychaetes collected from soft bottoms of this sea and off the west coast of the Antarctic Peninsula (Gerlache Strait) by means of a box-corer (25 × 25 cm) in two intensive surveys carried out during austral summers of 2002–2003 and 2005–2006 (BENTART-03 and BENTART-06). Three different polychaete assemblages were determined from the classification and ordination analyses of sampling stations based on the Bray-Curtis similarity index. One group of stations encompassed the deep stations from the shelf of the Bellingshausen Sea, the second one the shallower stations from the same area and the third one those stations located near the coast of Peter I Island and Gerlache Strait, off the Antarctic Peninsula. The environmental variables involved in segregating these groups were several sedimentary features (redox potential, gravel content) and depth. The present study provides further support to previous ones that considered the shelf of the Bellingshausen Sea as a differentiated region within the Southern Ocean, clearly distinct to the adjacent Weddell and Scott Seas and the Antarctic Peninsula. Sí Article in Journal/Newspaper Antarc* Antarctic Antarctic Ocean Antarctic Peninsula Antarctica Bellingshausen Sea Peter I Island Polar Biology Southern Ocean Digital.CSIC (Spanish National Research Council) Antarctic Southern Ocean The Antarctic Antarctic Peninsula Austral Bellingshausen Sea Weddell Antarctic Ocean Bray ENVELOPE(-114.067,-114.067,-74.833,-74.833) Gerlache ENVELOPE(99.033,99.033,-66.500,-66.500) Gerlache Strait ENVELOPE(-62.333,-62.333,-64.500,-64.500) Peter I Island ENVELOPE(-90.583,-90.583,-68.783,-68.783) Polar Biology 34 5 715 730 |
institution |
Open Polar |
collection |
Digital.CSIC (Spanish National Research Council) |
op_collection_id |
ftcsic |
language |
unknown |
topic |
Centro Oceanográfico de Vigo Polychaetes Medio Marino Soft bottoms Benthos Box-corer Distribution BENTART cruises Antarctica |
spellingShingle |
Centro Oceanográfico de Vigo Polychaetes Medio Marino Soft bottoms Benthos Box-corer Distribution BENTART cruises Antarctica Parapar, Julio López-Díaz, Eduardo Gambi, María Cristina Núñez, Jorge Ramos, Ana Quantitative analysis of soft-bottom polychaetes of the Bellingshausen Sea and Gerlache Strait (Antarctica) |
topic_facet |
Centro Oceanográfico de Vigo Polychaetes Medio Marino Soft bottoms Benthos Box-corer Distribution BENTART cruises Antarctica |
description |
The basin off the Bellingshausen Sea, in contrast to other better known areas such as the Antarctic Peninsula and the Ross and Weddell Seas, has been little investigated due to remoteness and the prevalence of ice for most of the year. The present study focuses on an analysis of polychaetes collected from soft bottoms of this sea and off the west coast of the Antarctic Peninsula (Gerlache Strait) by means of a box-corer (25 × 25 cm) in two intensive surveys carried out during austral summers of 2002–2003 and 2005–2006 (BENTART-03 and BENTART-06). Three different polychaete assemblages were determined from the classification and ordination analyses of sampling stations based on the Bray-Curtis similarity index. One group of stations encompassed the deep stations from the shelf of the Bellingshausen Sea, the second one the shallower stations from the same area and the third one those stations located near the coast of Peter I Island and Gerlache Strait, off the Antarctic Peninsula. The environmental variables involved in segregating these groups were several sedimentary features (redox potential, gravel content) and depth. The present study provides further support to previous ones that considered the shelf of the Bellingshausen Sea as a differentiated region within the Southern Ocean, clearly distinct to the adjacent Weddell and Scott Seas and the Antarctic Peninsula. Sí |
format |
Article in Journal/Newspaper |
author |
Parapar, Julio López-Díaz, Eduardo Gambi, María Cristina Núñez, Jorge Ramos, Ana |
author_facet |
Parapar, Julio López-Díaz, Eduardo Gambi, María Cristina Núñez, Jorge Ramos, Ana |
author_sort |
Parapar, Julio |
title |
Quantitative analysis of soft-bottom polychaetes of the Bellingshausen Sea and Gerlache Strait (Antarctica) |
title_short |
Quantitative analysis of soft-bottom polychaetes of the Bellingshausen Sea and Gerlache Strait (Antarctica) |
title_full |
Quantitative analysis of soft-bottom polychaetes of the Bellingshausen Sea and Gerlache Strait (Antarctica) |
title_fullStr |
Quantitative analysis of soft-bottom polychaetes of the Bellingshausen Sea and Gerlache Strait (Antarctica) |
title_full_unstemmed |
Quantitative analysis of soft-bottom polychaetes of the Bellingshausen Sea and Gerlache Strait (Antarctica) |
title_sort |
quantitative analysis of soft-bottom polychaetes of the bellingshausen sea and gerlache strait (antarctica) |
publishDate |
2010 |
url |
http://hdl.handle.net/10508/7893 http://hdl.handle.net/10261/321527 https://doi.org/10.1007/s00300-010-0927-4 |
op_coverage |
Antarctic Ocean Bellingshausen Sea |
long_lat |
ENVELOPE(-114.067,-114.067,-74.833,-74.833) ENVELOPE(99.033,99.033,-66.500,-66.500) ENVELOPE(-62.333,-62.333,-64.500,-64.500) ENVELOPE(-90.583,-90.583,-68.783,-68.783) |
geographic |
Antarctic Southern Ocean The Antarctic Antarctic Peninsula Austral Bellingshausen Sea Weddell Antarctic Ocean Bray Gerlache Gerlache Strait Peter I Island |
geographic_facet |
Antarctic Southern Ocean The Antarctic Antarctic Peninsula Austral Bellingshausen Sea Weddell Antarctic Ocean Bray Gerlache Gerlache Strait Peter I Island |
genre |
Antarc* Antarctic Antarctic Ocean Antarctic Peninsula Antarctica Bellingshausen Sea Peter I Island Polar Biology Southern Ocean |
genre_facet |
Antarc* Antarctic Antarctic Ocean Antarctic Peninsula Antarctica Bellingshausen Sea Peter I Island Polar Biology Southern Ocean |
op_relation |
Centro Oceanográfico de Vigo http://link.springer.com/article/10.1007%2Fs00300-010-0927-4 Polar Biology, 34(5). 2010: 715-730 http://hdl.handle.net/10508/7893 http://hdl.handle.net/10261/321527 doi:10.1007/s00300-010-0927-4 1612 |
op_rights |
open |
op_doi |
https://doi.org/10.1007/s00300-010-0927-4 |
container_title |
Polar Biology |
container_volume |
34 |
container_issue |
5 |
container_start_page |
715 |
op_container_end_page |
730 |
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1790593792849477632 |