Environmental control on the structure of echinoid assemblages in the Bellingshausen Sea (Antarctica)
The Bellingshausen Sea is one of the most remote and least surveyed seas of the Southern Ocean, so that little was known about benthic communities and those factors that determine community structuring until recently. The present work aims at characterizing the structure and spatial distribution of...
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ftcsic:oai:digital.csic.es:10261/320519 2024-02-11T09:56:48+01:00 Environmental control on the structure of echinoid assemblages in the Bellingshausen Sea (Antarctica) Moya-Ruiz, Francisca Saucède, Thomas Manjón-Cabeza, María Eugenia 2012 http://hdl.handle.net/10508/12054 http://hdl.handle.net/10261/320519 en eng Centro Oceanográfico de Málaga VoR https://link.springer.com/article/10.1007%2Fs00300-012-1176-5 Polar Biology, 35. 2012: 1343-1357 0722-4060 http://hdl.handle.net/10508/12054 http://hdl.handle.net/10261/320519 23005 open Medio Marino Centro Oceanográfico de Málaga Abiotic factors Antarctic Bellingshausen Sea Benthos Diversity Echinodermata Echinoidea research article 2012 ftcsic 2024-01-16T11:46:03Z The Bellingshausen Sea is one of the most remote and least surveyed seas of the Southern Ocean, so that little was known about benthic communities and those factors that determine community structuring until recently. The present work aims at characterizing the structure and spatial distribution of echinoid assemblages in the Bellingshausen Sea, as well as identifying the environmental factors that determine assemblage structuring. Echinoids were collected at 32 stations using an Agassiz trawl, at depths of 86–3,304 m, during BENTART oceanographic expeditions led in 2003 and 2006. Sediment and bottom water properties were analysed using an USNEL-type box corer and a Neil Brown Instrument System Mark III CTD, respectively. Echinoids were found at all stations, except Peter I Island. Seventeen species were identified, representing 22 % of the echinoid species present in the Southern Ocean and increasing twofold the number of species recorded in the Bellingshausen Sea so far. The echinoid fauna is dominated by the very abundant species Sterechinus antarcticus. Depth is the key factor that determines the nature of echinoid assemblages, which are mainly divided into the continental shelf, the slope and the deep-sea basin. In addition, sediment properties, namely redox values, organic matter and mud content, best match species dispersion on the shelf. Sediment properties affect echinoid distribution depending on species food range and feeding strategy. As it might be expected, sediment properties more strongly influence specialist feeders (Schizasteridae and Cidaridae) than generalists (Echinidae). SI Article in Journal/Newspaper Antarc* Antarctic Antarctica antarcticus Bellingshausen Sea Peter I Island Polar Biology Southern Ocean Digital.CSIC (Spanish National Research Council) Antarctic Bellingshausen Sea Peter I Island ENVELOPE(-90.583,-90.583,-68.783,-68.783) Southern Ocean |
institution |
Open Polar |
collection |
Digital.CSIC (Spanish National Research Council) |
op_collection_id |
ftcsic |
language |
English |
topic |
Medio Marino Centro Oceanográfico de Málaga Abiotic factors Antarctic Bellingshausen Sea Benthos Diversity Echinodermata Echinoidea |
spellingShingle |
Medio Marino Centro Oceanográfico de Málaga Abiotic factors Antarctic Bellingshausen Sea Benthos Diversity Echinodermata Echinoidea Moya-Ruiz, Francisca Saucède, Thomas Manjón-Cabeza, María Eugenia Environmental control on the structure of echinoid assemblages in the Bellingshausen Sea (Antarctica) |
topic_facet |
Medio Marino Centro Oceanográfico de Málaga Abiotic factors Antarctic Bellingshausen Sea Benthos Diversity Echinodermata Echinoidea |
description |
The Bellingshausen Sea is one of the most remote and least surveyed seas of the Southern Ocean, so that little was known about benthic communities and those factors that determine community structuring until recently. The present work aims at characterizing the structure and spatial distribution of echinoid assemblages in the Bellingshausen Sea, as well as identifying the environmental factors that determine assemblage structuring. Echinoids were collected at 32 stations using an Agassiz trawl, at depths of 86–3,304 m, during BENTART oceanographic expeditions led in 2003 and 2006. Sediment and bottom water properties were analysed using an USNEL-type box corer and a Neil Brown Instrument System Mark III CTD, respectively. Echinoids were found at all stations, except Peter I Island. Seventeen species were identified, representing 22 % of the echinoid species present in the Southern Ocean and increasing twofold the number of species recorded in the Bellingshausen Sea so far. The echinoid fauna is dominated by the very abundant species Sterechinus antarcticus. Depth is the key factor that determines the nature of echinoid assemblages, which are mainly divided into the continental shelf, the slope and the deep-sea basin. In addition, sediment properties, namely redox values, organic matter and mud content, best match species dispersion on the shelf. Sediment properties affect echinoid distribution depending on species food range and feeding strategy. As it might be expected, sediment properties more strongly influence specialist feeders (Schizasteridae and Cidaridae) than generalists (Echinidae). SI |
format |
Article in Journal/Newspaper |
author |
Moya-Ruiz, Francisca Saucède, Thomas Manjón-Cabeza, María Eugenia |
author_facet |
Moya-Ruiz, Francisca Saucède, Thomas Manjón-Cabeza, María Eugenia |
author_sort |
Moya-Ruiz, Francisca |
title |
Environmental control on the structure of echinoid assemblages in the Bellingshausen Sea (Antarctica) |
title_short |
Environmental control on the structure of echinoid assemblages in the Bellingshausen Sea (Antarctica) |
title_full |
Environmental control on the structure of echinoid assemblages in the Bellingshausen Sea (Antarctica) |
title_fullStr |
Environmental control on the structure of echinoid assemblages in the Bellingshausen Sea (Antarctica) |
title_full_unstemmed |
Environmental control on the structure of echinoid assemblages in the Bellingshausen Sea (Antarctica) |
title_sort |
environmental control on the structure of echinoid assemblages in the bellingshausen sea (antarctica) |
publishDate |
2012 |
url |
http://hdl.handle.net/10508/12054 http://hdl.handle.net/10261/320519 |
long_lat |
ENVELOPE(-90.583,-90.583,-68.783,-68.783) |
geographic |
Antarctic Bellingshausen Sea Peter I Island Southern Ocean |
geographic_facet |
Antarctic Bellingshausen Sea Peter I Island Southern Ocean |
genre |
Antarc* Antarctic Antarctica antarcticus Bellingshausen Sea Peter I Island Polar Biology Southern Ocean |
genre_facet |
Antarc* Antarctic Antarctica antarcticus Bellingshausen Sea Peter I Island Polar Biology Southern Ocean |
op_relation |
Centro Oceanográfico de Málaga VoR https://link.springer.com/article/10.1007%2Fs00300-012-1176-5 Polar Biology, 35. 2012: 1343-1357 0722-4060 http://hdl.handle.net/10508/12054 http://hdl.handle.net/10261/320519 23005 |
op_rights |
open |
_version_ |
1790606026145267712 |