Community structure and spatial distribution of benthic fauna in the Bellingshausen Sea (West Antarctica)
The structure and spatial distribution of the macrofauna community of the Bellingshausen Sea in the western sector of Antarctica was studied during the ‘BENTART–06’ oceanographic expedition. This is one of the least explored Antarctic seas. A total of 20 box cores were sampled at 11 stations ranging...
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ftcsic:oai:digital.csic.es:10261/324101 2024-02-11T09:57:24+01:00 Community structure and spatial distribution of benthic fauna in the Bellingshausen Sea (West Antarctica) Saiz-Salinas, José Ignacio García, Francisco José Manjón-Cabeza, María Eugenia Parapar, Julio Peña-Cantero, Álvaro Saucède, Thomas Troncoso, Jesús Ramos, Ana Antarctic Ocean Bellingshausen Sea 2008 http://hdl.handle.net/10508/7647 http://hdl.handle.net/10261/324101 https://doi.org/10.1007/s00300-008-0414-3 unknown Centro Oceanográfico de Vigo 31(6). 2008: 735-743 0722-4060 http://hdl.handle.net/10508/7647 http://hdl.handle.net/10261/324101 doi:10.1007/s00300-008-0414-3 1488 open Centro Oceanográfico de Vigo Medio Marino Abiotic factors Abundance Antarctica Bellingshausen Sea Macrobenthos PRIMER research article 2008 ftcsic https://doi.org/10.1007/s00300-008-0414-3 2024-01-16T11:47:27Z The structure and spatial distribution of the macrofauna community of the Bellingshausen Sea in the western sector of Antarctica was studied during the ‘BENTART–06’ oceanographic expedition. This is one of the least explored Antarctic seas. A total of 20 box cores were sampled at 11 stations ranging from 157 to 3,304 m depth, using an USNEL-type box corer (BC) dredge. Representatives of 25 higher taxa of invertebrates were collected. Deeper sampling sites were less rich in taxa (4–7 taxa), whereas the figures were higher at shallower sites (up to 17 taxa). Faunal density on the sea bottom revealed a horizontal spatial gradient from the western sites with extremely low figures (90 indiv./m2) towards the eastern ones with the highest figures (1,360 indiv./m2) close to the Antarctic Peninsula. Several abiotic factors (depth, redox, organic matter, carbonates and particle size of surficial sediments) were measured simultaneously on the sea floor to characterise the substrate preferences of the fauna. Positive correlations were found between the faunal distribution and a combination of depth, redox values, and organic matter content of sediments. This indicates decreasing availability of food in the deeper bottoms of the Bellingshausen Sea with a prevalence of depauperated bottoms dominated almost exclusively by a foraminiferans community. Sí Article in Journal/Newspaper Antarc* Antarctic Antarctic Ocean Antarctic Peninsula Antarctica Bellingshausen Sea West Antarctica Digital.CSIC (Spanish National Research Council) Antarctic Antarctic Ocean Antarctic Peninsula Bellingshausen Sea The Antarctic West Antarctica Polar Biology 31 6 735 743 |
institution |
Open Polar |
collection |
Digital.CSIC (Spanish National Research Council) |
op_collection_id |
ftcsic |
language |
unknown |
topic |
Centro Oceanográfico de Vigo Medio Marino Abiotic factors Abundance Antarctica Bellingshausen Sea Macrobenthos PRIMER |
spellingShingle |
Centro Oceanográfico de Vigo Medio Marino Abiotic factors Abundance Antarctica Bellingshausen Sea Macrobenthos PRIMER Saiz-Salinas, José Ignacio García, Francisco José Manjón-Cabeza, María Eugenia Parapar, Julio Peña-Cantero, Álvaro Saucède, Thomas Troncoso, Jesús Ramos, Ana Community structure and spatial distribution of benthic fauna in the Bellingshausen Sea (West Antarctica) |
topic_facet |
Centro Oceanográfico de Vigo Medio Marino Abiotic factors Abundance Antarctica Bellingshausen Sea Macrobenthos PRIMER |
description |
The structure and spatial distribution of the macrofauna community of the Bellingshausen Sea in the western sector of Antarctica was studied during the ‘BENTART–06’ oceanographic expedition. This is one of the least explored Antarctic seas. A total of 20 box cores were sampled at 11 stations ranging from 157 to 3,304 m depth, using an USNEL-type box corer (BC) dredge. Representatives of 25 higher taxa of invertebrates were collected. Deeper sampling sites were less rich in taxa (4–7 taxa), whereas the figures were higher at shallower sites (up to 17 taxa). Faunal density on the sea bottom revealed a horizontal spatial gradient from the western sites with extremely low figures (90 indiv./m2) towards the eastern ones with the highest figures (1,360 indiv./m2) close to the Antarctic Peninsula. Several abiotic factors (depth, redox, organic matter, carbonates and particle size of surficial sediments) were measured simultaneously on the sea floor to characterise the substrate preferences of the fauna. Positive correlations were found between the faunal distribution and a combination of depth, redox values, and organic matter content of sediments. This indicates decreasing availability of food in the deeper bottoms of the Bellingshausen Sea with a prevalence of depauperated bottoms dominated almost exclusively by a foraminiferans community. Sí |
format |
Article in Journal/Newspaper |
author |
Saiz-Salinas, José Ignacio García, Francisco José Manjón-Cabeza, María Eugenia Parapar, Julio Peña-Cantero, Álvaro Saucède, Thomas Troncoso, Jesús Ramos, Ana |
author_facet |
Saiz-Salinas, José Ignacio García, Francisco José Manjón-Cabeza, María Eugenia Parapar, Julio Peña-Cantero, Álvaro Saucède, Thomas Troncoso, Jesús Ramos, Ana |
author_sort |
Saiz-Salinas, José Ignacio |
title |
Community structure and spatial distribution of benthic fauna in the Bellingshausen Sea (West Antarctica) |
title_short |
Community structure and spatial distribution of benthic fauna in the Bellingshausen Sea (West Antarctica) |
title_full |
Community structure and spatial distribution of benthic fauna in the Bellingshausen Sea (West Antarctica) |
title_fullStr |
Community structure and spatial distribution of benthic fauna in the Bellingshausen Sea (West Antarctica) |
title_full_unstemmed |
Community structure and spatial distribution of benthic fauna in the Bellingshausen Sea (West Antarctica) |
title_sort |
community structure and spatial distribution of benthic fauna in the bellingshausen sea (west antarctica) |
publishDate |
2008 |
url |
http://hdl.handle.net/10508/7647 http://hdl.handle.net/10261/324101 https://doi.org/10.1007/s00300-008-0414-3 |
op_coverage |
Antarctic Ocean Bellingshausen Sea |
geographic |
Antarctic Antarctic Ocean Antarctic Peninsula Bellingshausen Sea The Antarctic West Antarctica |
geographic_facet |
Antarctic Antarctic Ocean Antarctic Peninsula Bellingshausen Sea The Antarctic West Antarctica |
genre |
Antarc* Antarctic Antarctic Ocean Antarctic Peninsula Antarctica Bellingshausen Sea West Antarctica |
genre_facet |
Antarc* Antarctic Antarctic Ocean Antarctic Peninsula Antarctica Bellingshausen Sea West Antarctica |
op_relation |
Centro Oceanográfico de Vigo 31(6). 2008: 735-743 0722-4060 http://hdl.handle.net/10508/7647 http://hdl.handle.net/10261/324101 doi:10.1007/s00300-008-0414-3 1488 |
op_rights |
open |
op_doi |
https://doi.org/10.1007/s00300-008-0414-3 |
container_title |
Polar Biology |
container_volume |
31 |
container_issue |
6 |
container_start_page |
735 |
op_container_end_page |
743 |
_version_ |
1790609691677556736 |