Megafaunal assemblages in deep-sea ecosystems of the Gulf of Cadiz, northeast Atlantic ocean
Deep-sea ecosystems of the Iberian margin have been widely impacted over the past decades, but the limited knowledge on their biodiversity and functioning limits our ability to contribute to their conservation. So far, in the Gulf of Cadiz, research has mostly been focused on megabenthic assemblages...
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ftnioz:oai:imis.nioz.nl:350418 2023-05-15T17:41:26+02:00 Megafaunal assemblages in deep-sea ecosystems of the Gulf of Cadiz, northeast Atlantic ocean Grinyó, J. Francescangeli, M. Santin, A. Ercilla, G. Estrada, F. Mechó, A. Fanelli, E. Costa, C. Danovaro, R. Company, J.B. Sobrino, I. Valencia, J. Aguzzi, J. 2022 application/pdf https://www.vliz.be/imisdocs/publications/30/373130.pdf en eng info:eu-repo/semantics/altIdentifier/doi/doi.org/10.1016/j.dsr.2022.103738 https://www.vliz.be/imisdocs/publications/30/373130.pdf info:eu-repo/semantics/openAccess %3Ci%3EDeep-Sea+Res.,+Part+1,+Oceanogr.+Res.+Pap.+183%3C%2Fi%3E%3A+103738.+%3Ca+href%3D%22https%3A%2F%2Fdx.doi.org%2F10.1016%2Fj.dsr.2022.103738%22+target%3D%22_blank%22%3Ehttps%3A%2F%2Fdx.doi.org%2F10.1016%2Fj.dsr.2022.103738%3C%2Fa%3E info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2022 ftnioz https://doi.org/10.1016/j.dsr.2022.103738 2022-05-01T14:16:10Z Deep-sea ecosystems of the Iberian margin have been widely impacted over the past decades, but the limited knowledge on their biodiversity and functioning limits our ability to contribute to their conservation. So far, in the Gulf of Cadiz, research has mostly been focused on megabenthic assemblages associated to mud volcanoes . However, several other geomorphological structures have remained widely unexplored. Here, by means of a quantitative analysis of 17 video transects conducted between 220 and 980 m depth, we investigated megabenthic assemblages associated to canyons, contouritic channels, contouritic furrows and open slopes. We report the presence of 8 different assemblages, segregated as a result of the different substrates and geomorphologic features. Megabenthic assemblages on hard substrates were characterized by mono or multispecific sponge assemblages. Soft bottoms hosted crinoid beds,pennatulacean meadows and fields of the gorgonian Radicipes gracilis . These results highlight the high diversity of megabenthic assemblages in deep-sea ecosystems of the Gulf of Cadiz and suggest that most of the geomorphological features that remained so far unexplored represent vulnerable marine ecosystems deserving protection and inclusion in future management plans. Article in Journal/Newspaper Northeast Atlantic NIOZ Repository (Royal Netherlands Institute for Sea Research) Deep Sea Research Part I: Oceanographic Research Papers 183 103738 |
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Open Polar |
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NIOZ Repository (Royal Netherlands Institute for Sea Research) |
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ftnioz |
language |
English |
description |
Deep-sea ecosystems of the Iberian margin have been widely impacted over the past decades, but the limited knowledge on their biodiversity and functioning limits our ability to contribute to their conservation. So far, in the Gulf of Cadiz, research has mostly been focused on megabenthic assemblages associated to mud volcanoes . However, several other geomorphological structures have remained widely unexplored. Here, by means of a quantitative analysis of 17 video transects conducted between 220 and 980 m depth, we investigated megabenthic assemblages associated to canyons, contouritic channels, contouritic furrows and open slopes. We report the presence of 8 different assemblages, segregated as a result of the different substrates and geomorphologic features. Megabenthic assemblages on hard substrates were characterized by mono or multispecific sponge assemblages. Soft bottoms hosted crinoid beds,pennatulacean meadows and fields of the gorgonian Radicipes gracilis . These results highlight the high diversity of megabenthic assemblages in deep-sea ecosystems of the Gulf of Cadiz and suggest that most of the geomorphological features that remained so far unexplored represent vulnerable marine ecosystems deserving protection and inclusion in future management plans. |
format |
Article in Journal/Newspaper |
author |
Grinyó, J. Francescangeli, M. Santin, A. Ercilla, G. Estrada, F. Mechó, A. Fanelli, E. Costa, C. Danovaro, R. Company, J.B. Sobrino, I. Valencia, J. Aguzzi, J. |
spellingShingle |
Grinyó, J. Francescangeli, M. Santin, A. Ercilla, G. Estrada, F. Mechó, A. Fanelli, E. Costa, C. Danovaro, R. Company, J.B. Sobrino, I. Valencia, J. Aguzzi, J. Megafaunal assemblages in deep-sea ecosystems of the Gulf of Cadiz, northeast Atlantic ocean |
author_facet |
Grinyó, J. Francescangeli, M. Santin, A. Ercilla, G. Estrada, F. Mechó, A. Fanelli, E. Costa, C. Danovaro, R. Company, J.B. Sobrino, I. Valencia, J. Aguzzi, J. |
author_sort |
Grinyó, J. |
title |
Megafaunal assemblages in deep-sea ecosystems of the Gulf of Cadiz, northeast Atlantic ocean |
title_short |
Megafaunal assemblages in deep-sea ecosystems of the Gulf of Cadiz, northeast Atlantic ocean |
title_full |
Megafaunal assemblages in deep-sea ecosystems of the Gulf of Cadiz, northeast Atlantic ocean |
title_fullStr |
Megafaunal assemblages in deep-sea ecosystems of the Gulf of Cadiz, northeast Atlantic ocean |
title_full_unstemmed |
Megafaunal assemblages in deep-sea ecosystems of the Gulf of Cadiz, northeast Atlantic ocean |
title_sort |
megafaunal assemblages in deep-sea ecosystems of the gulf of cadiz, northeast atlantic ocean |
publishDate |
2022 |
url |
https://www.vliz.be/imisdocs/publications/30/373130.pdf |
genre |
Northeast Atlantic |
genre_facet |
Northeast Atlantic |
op_source |
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op_relation |
info:eu-repo/semantics/altIdentifier/doi/doi.org/10.1016/j.dsr.2022.103738 https://www.vliz.be/imisdocs/publications/30/373130.pdf |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1016/j.dsr.2022.103738 |
container_title |
Deep Sea Research Part I: Oceanographic Research Papers |
container_volume |
183 |
container_start_page |
103738 |
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