An uncommon or just an ecologically demanding species? Finding of aggregations of the brittle-star Ophiothrix maculata on the Northwest African slope
Ophiuroidea constitutes the largest class of the phylum Echinodermata. It includes families with suspension-feeder behaviour that can be found in dense aggregations in all oceans worldwide. Ophiothrix maculata was known as a rare suspension-feeder brittle star, with only four records in the Eastern...
Published in: | Deep Sea Research Part I: Oceanographic Research Papers |
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Online Access: | http://hdl.handle.net/10508/14640 http://hdl.handle.net/10261/327576 https://doi.org/10.1016/j.dsr.2017.11.008 |
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ftcsic:oai:digital.csic.es:10261/327576 2024-02-11T10:05:42+01:00 An uncommon or just an ecologically demanding species? Finding of aggregations of the brittle-star Ophiothrix maculata on the Northwest African slope Calero, Belén Ramos-Cartelle, Ana Ramil, Francisco 2018 http://hdl.handle.net/10508/14640 http://hdl.handle.net/10261/327576 https://doi.org/10.1016/j.dsr.2017.11.008 en eng Elsevier BV Centro Oceanográfico de Vigo 0967-0637 http://hdl.handle.net/10508/14640 http://hdl.handle.net/10261/327576 doi:10.1016/j.dsr.2017.11.008 23922 none Centro Oceanográfico de Vigo Pesquerías research article 2018 ftcsic https://doi.org/10.1016/j.dsr.2017.11.008 2024-01-16T11:49:02Z Ophiuroidea constitutes the largest class of the phylum Echinodermata. It includes families with suspension-feeder behaviour that can be found in dense aggregations in all oceans worldwide. Ophiothrix maculata was known as a rare suspension-feeder brittle star, with only four records in the Eastern Central Atlantic dating from almost 100 years ago. During the ten multidisciplinary Spanish and Norwegian surveys carried out from 2004 to 2012 off Northwest Africa, between the Gibraltar Strait and the Sierra Leone border from 19 to 1888 m depth, we sampled 1298 stations. We gathered about one million individuals and 124 kg of brittle stars at 501 of the stations. Eight hundred and thirty-two specimens of Ophiothrix maculata were collected at six localities on the continental slope off Mauritania, Western Sahara and Guinea Bissau, at depths between 155 and 594 m. The Guinea Bissau samples represent the southernmost current record for the species. Even though Ophiothrix maculata has been previously recorded only in isolation, we discovered dense concentrations on the Mauritanian slope on the Wolof's Seamount (580 individuals) and off the Western Sahara, in a Lophelia pertusa reef (202 individuals). In this paper, we describe these findings and discuss the association of this species to hard-bottom habitats and high primary production areas, outside of the oxygen minimum zone (OMZ). We also analyse what other factors may explain the patchy distribution of O. maculata on the Northwest African slope Sí Article in Journal/Newspaper Lophelia pertusa Digital.CSIC (Spanish National Research Council) Deep Sea Research Part I: Oceanographic Research Papers 131 87 92 |
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Open Polar |
collection |
Digital.CSIC (Spanish National Research Council) |
op_collection_id |
ftcsic |
language |
English |
topic |
Centro Oceanográfico de Vigo Pesquerías |
spellingShingle |
Centro Oceanográfico de Vigo Pesquerías Calero, Belén Ramos-Cartelle, Ana Ramil, Francisco An uncommon or just an ecologically demanding species? Finding of aggregations of the brittle-star Ophiothrix maculata on the Northwest African slope |
topic_facet |
Centro Oceanográfico de Vigo Pesquerías |
description |
Ophiuroidea constitutes the largest class of the phylum Echinodermata. It includes families with suspension-feeder behaviour that can be found in dense aggregations in all oceans worldwide. Ophiothrix maculata was known as a rare suspension-feeder brittle star, with only four records in the Eastern Central Atlantic dating from almost 100 years ago. During the ten multidisciplinary Spanish and Norwegian surveys carried out from 2004 to 2012 off Northwest Africa, between the Gibraltar Strait and the Sierra Leone border from 19 to 1888 m depth, we sampled 1298 stations. We gathered about one million individuals and 124 kg of brittle stars at 501 of the stations. Eight hundred and thirty-two specimens of Ophiothrix maculata were collected at six localities on the continental slope off Mauritania, Western Sahara and Guinea Bissau, at depths between 155 and 594 m. The Guinea Bissau samples represent the southernmost current record for the species. Even though Ophiothrix maculata has been previously recorded only in isolation, we discovered dense concentrations on the Mauritanian slope on the Wolof's Seamount (580 individuals) and off the Western Sahara, in a Lophelia pertusa reef (202 individuals). In this paper, we describe these findings and discuss the association of this species to hard-bottom habitats and high primary production areas, outside of the oxygen minimum zone (OMZ). We also analyse what other factors may explain the patchy distribution of O. maculata on the Northwest African slope Sí |
format |
Article in Journal/Newspaper |
author |
Calero, Belén Ramos-Cartelle, Ana Ramil, Francisco |
author_facet |
Calero, Belén Ramos-Cartelle, Ana Ramil, Francisco |
author_sort |
Calero, Belén |
title |
An uncommon or just an ecologically demanding species? Finding of aggregations of the brittle-star Ophiothrix maculata on the Northwest African slope |
title_short |
An uncommon or just an ecologically demanding species? Finding of aggregations of the brittle-star Ophiothrix maculata on the Northwest African slope |
title_full |
An uncommon or just an ecologically demanding species? Finding of aggregations of the brittle-star Ophiothrix maculata on the Northwest African slope |
title_fullStr |
An uncommon or just an ecologically demanding species? Finding of aggregations of the brittle-star Ophiothrix maculata on the Northwest African slope |
title_full_unstemmed |
An uncommon or just an ecologically demanding species? Finding of aggregations of the brittle-star Ophiothrix maculata on the Northwest African slope |
title_sort |
uncommon or just an ecologically demanding species? finding of aggregations of the brittle-star ophiothrix maculata on the northwest african slope |
publisher |
Elsevier BV |
publishDate |
2018 |
url |
http://hdl.handle.net/10508/14640 http://hdl.handle.net/10261/327576 https://doi.org/10.1016/j.dsr.2017.11.008 |
genre |
Lophelia pertusa |
genre_facet |
Lophelia pertusa |
op_relation |
Centro Oceanográfico de Vigo 0967-0637 http://hdl.handle.net/10508/14640 http://hdl.handle.net/10261/327576 doi:10.1016/j.dsr.2017.11.008 23922 |
op_rights |
none |
op_doi |
https://doi.org/10.1016/j.dsr.2017.11.008 |
container_title |
Deep Sea Research Part I: Oceanographic Research Papers |
container_volume |
131 |
container_start_page |
87 |
op_container_end_page |
92 |
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1790602834645876736 |