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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ftunivcoruna:oai:ruc.udc.es:2183/17530 2023-05-15T14:05:23+02:00 Community structure and spatial distribution of benthic fauna in the Bellingshausen Sea (West Antarctica) Saiz Salinas, Jose Ignacio García García, Francisco José Manjón-Cabeza Clouté, María Eugenia Parapar, Julio Peña-Cantero, Álvaro Saucède, Thomas Troncoso, Jesús S. Ramos, Ana 2008 http://hdl.handle.net/2183/17530 eng eng Springer http://dx.doi.org/10.1007/s00300-008-0414-3 Saiz, J.I., García, F.J., Manjón-Cabeza, M.E. et al. Polar Biol (2008) 31: 735. doi:10.1007/s00300-008-0414-3 1432-2056 http://hdl.handle.net/2183/17530 The final publication is available at Springer via http://dx.doi.org/10.1007/s00300-008-0414-3 info:eu-repo/semantics/openAccess Abiotic factors Abundance Antarctica Bellingshausen Sea Macrobenthos PRIMER info:eu-repo/semantics/article 2008 ftunivcoruna https://doi.org/10.1007/s00300-008-0414-3 2021-12-30T14:11:09Z 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. Ministerio de Ciencia y Tecnología; GLC2004-01856/ANT Article in Journal/Newspaper Antarc* Antarctic Antarctic Peninsula Antarctica Bellingshausen Sea West Antarctica RUC - Repositorio Universidade Coruña Antarctic Antarctic Peninsula Bellingshausen Sea The Antarctic West Antarctica Polar Biology 31 6 735 743 |
institution |
Open Polar |
collection |
RUC - Repositorio Universidade Coruña |
op_collection_id |
ftunivcoruna |
language |
English |
topic |
Abiotic factors Abundance Antarctica Bellingshausen Sea Macrobenthos PRIMER |
spellingShingle |
Abiotic factors Abundance Antarctica Bellingshausen Sea Macrobenthos PRIMER Saiz Salinas, Jose Ignacio García García, Francisco José Manjón-Cabeza Clouté, María Eugenia Parapar, Julio Peña-Cantero, Álvaro Saucède, Thomas Troncoso, Jesús S. Ramos, Ana Community structure and spatial distribution of benthic fauna in the Bellingshausen Sea (West Antarctica) |
topic_facet |
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. Ministerio de Ciencia y Tecnología; GLC2004-01856/ANT |
format |
Article in Journal/Newspaper |
author |
Saiz Salinas, Jose Ignacio García García, Francisco José Manjón-Cabeza Clouté, María Eugenia Parapar, Julio Peña-Cantero, Álvaro Saucède, Thomas Troncoso, Jesús S. Ramos, Ana |
author_facet |
Saiz Salinas, Jose Ignacio García García, Francisco José Manjón-Cabeza Clouté, María Eugenia Parapar, Julio Peña-Cantero, Álvaro Saucède, Thomas Troncoso, Jesús S. Ramos, Ana |
author_sort |
Saiz Salinas, Jose 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) |
publisher |
Springer |
publishDate |
2008 |
url |
http://hdl.handle.net/2183/17530 |
geographic |
Antarctic Antarctic Peninsula Bellingshausen Sea The Antarctic West Antarctica |
geographic_facet |
Antarctic Antarctic Peninsula Bellingshausen Sea The Antarctic West Antarctica |
genre |
Antarc* Antarctic Antarctic Peninsula Antarctica Bellingshausen Sea West Antarctica |
genre_facet |
Antarc* Antarctic Antarctic Peninsula Antarctica Bellingshausen Sea West Antarctica |
op_relation |
http://dx.doi.org/10.1007/s00300-008-0414-3 Saiz, J.I., García, F.J., Manjón-Cabeza, M.E. et al. Polar Biol (2008) 31: 735. doi:10.1007/s00300-008-0414-3 1432-2056 http://hdl.handle.net/2183/17530 |
op_rights |
The final publication is available at Springer via http://dx.doi.org/10.1007/s00300-008-0414-3 info:eu-repo/semantics/openAccess |
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_ |
1766277217147420672 |