Megafaunal assemblages in deep-sea ecosystems of the Gulf of Cadiz, northeast Atlantic ocean

International audience 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...

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Published in:Deep Sea Research Part I: Oceanographic Research Papers
Main Authors: Grinyó, Jordi, Francescangeli, Marco, Santín, Andreu, Ercilla, Gemma, Estrada, Ferran, Mecho, Ariadna, Fanelli, Emanuela, Costa, Corrado, Danovaro, Roberto, Company, Joan Batista, Sobrino, Ignacio, Valencia, Javier, Aguzzi, Jacopo
Other Authors: Institute of Marine Sciences / Institut de Ciències del Mar Barcelona (ICM), Consejo Superior de Investigaciones Cientificas España = Spanish National Research Council Spain (CSIC), Royal Netherlands Institute for Sea Research (NIOZ), Instituto de Ciencias del Mar de Barcelona (ICM), Universitat de Barcelona (UB), Laboratoire des Sciences du Climat et de l'Environnement Gif-sur-Yvette (LSCE), Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Direction de Recherche Fondamentale (CEA) (DRF (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Modelling the Earth Response to Multiple Anthropogenic Interactions and Dynamics (MERMAID), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Direction de Recherche Fondamentale (CEA) (DRF (CEA)), Polytechnic University of Marche Ancona, Italy / Università Politecnica delle Marche Ancona, Italia (UNIVPM), Consiglio per la Ricerca in Agricoltura e l’analisi dell’economia agraria = Council for Agricultural Research and Economics (CREA), Stazione Zoologica Anton Dohrn (SZN), Instituto Espagňol de Oceanografia (IEO), Chercheur indépendant
Format: Article in Journal/Newspaper
Language:English
Published: HAL CCSD 2022
Subjects:
Online Access:https://hal.science/hal-04430221
https://doi.org/10.1016/j.dsr.2022.103738
id ftuniversailles:oai:HAL:hal-04430221v1
record_format openpolar
institution Open Polar
collection Université de Versailles Saint-Quentin-en-Yvelines: HAL-UVSQ
op_collection_id ftuniversailles
language English
topic Benthic assemblages
Deep-sea ecosystems
Gulf of Cadiz
Vulnerable marine ecosystems
ROV imaging
[SDV]Life Sciences [q-bio]
[SDE]Environmental Sciences
spellingShingle Benthic assemblages
Deep-sea ecosystems
Gulf of Cadiz
Vulnerable marine ecosystems
ROV imaging
[SDV]Life Sciences [q-bio]
[SDE]Environmental Sciences
Grinyó, Jordi
Francescangeli, Marco
Santín, Andreu
Ercilla, Gemma
Estrada, Ferran
Mecho, Ariadna
Fanelli, Emanuela
Costa, Corrado
Danovaro, Roberto
Company, Joan Batista
Sobrino, Ignacio
Valencia, Javier
Aguzzi, Jacopo
Megafaunal assemblages in deep-sea ecosystems of the Gulf of Cadiz, northeast Atlantic ocean
topic_facet Benthic assemblages
Deep-sea ecosystems
Gulf of Cadiz
Vulnerable marine ecosystems
ROV imaging
[SDV]Life Sciences [q-bio]
[SDE]Environmental Sciences
description International audience 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.
author2 Institute of Marine Sciences / Institut de Ciències del Mar Barcelona (ICM)
Consejo Superior de Investigaciones Cientificas España = Spanish National Research Council Spain (CSIC)
Royal Netherlands Institute for Sea Research (NIOZ)
Instituto de Ciencias del Mar de Barcelona (ICM)
Universitat de Barcelona (UB)
Laboratoire des Sciences du Climat et de l'Environnement Gif-sur-Yvette (LSCE)
Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Direction de Recherche Fondamentale (CEA) (DRF (CEA))
Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)
Modelling the Earth Response to Multiple Anthropogenic Interactions and Dynamics (MERMAID)
Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Direction de Recherche Fondamentale (CEA) (DRF (CEA))
Polytechnic University of Marche Ancona, Italy / Università Politecnica delle Marche Ancona, Italia (UNIVPM)
Consiglio per la Ricerca in Agricoltura e l’analisi dell’economia agraria = Council for Agricultural Research and Economics (CREA)
Stazione Zoologica Anton Dohrn (SZN)
Instituto Espagňol de Oceanografia (IEO)
Chercheur indépendant
format Article in Journal/Newspaper
author Grinyó, Jordi
Francescangeli, Marco
Santín, Andreu
Ercilla, Gemma
Estrada, Ferran
Mecho, Ariadna
Fanelli, Emanuela
Costa, Corrado
Danovaro, Roberto
Company, Joan Batista
Sobrino, Ignacio
Valencia, Javier
Aguzzi, Jacopo
author_facet Grinyó, Jordi
Francescangeli, Marco
Santín, Andreu
Ercilla, Gemma
Estrada, Ferran
Mecho, Ariadna
Fanelli, Emanuela
Costa, Corrado
Danovaro, Roberto
Company, Joan Batista
Sobrino, Ignacio
Valencia, Javier
Aguzzi, Jacopo
author_sort Grinyó, Jordi
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
publisher HAL CCSD
publishDate 2022
url https://hal.science/hal-04430221
https://doi.org/10.1016/j.dsr.2022.103738
genre Northeast Atlantic
genre_facet Northeast Atlantic
op_source ISSN: 0967-0637
Deep Sea Research Part I: Oceanographic Research Papers
https://hal.science/hal-04430221
Deep Sea Research Part I: Oceanographic Research Papers, 2022, 183, pp.103738. ⟨10.1016/j.dsr.2022.103738⟩
op_relation info:eu-repo/semantics/altIdentifier/doi/10.1016/j.dsr.2022.103738
hal-04430221
https://hal.science/hal-04430221
doi:10.1016/j.dsr.2022.103738
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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spelling ftuniversailles:oai:HAL:hal-04430221v1 2024-05-12T08:08:44+00:00 Megafaunal assemblages in deep-sea ecosystems of the Gulf of Cadiz, northeast Atlantic ocean Grinyó, Jordi Francescangeli, Marco Santín, Andreu Ercilla, Gemma Estrada, Ferran Mecho, Ariadna Fanelli, Emanuela Costa, Corrado Danovaro, Roberto Company, Joan Batista Sobrino, Ignacio Valencia, Javier Aguzzi, Jacopo Institute of Marine Sciences / Institut de Ciències del Mar Barcelona (ICM) Consejo Superior de Investigaciones Cientificas España = Spanish National Research Council Spain (CSIC) Royal Netherlands Institute for Sea Research (NIOZ) Instituto de Ciencias del Mar de Barcelona (ICM) Universitat de Barcelona (UB) Laboratoire des Sciences du Climat et de l'Environnement Gif-sur-Yvette (LSCE) Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Direction de Recherche Fondamentale (CEA) (DRF (CEA)) Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA) Modelling the Earth Response to Multiple Anthropogenic Interactions and Dynamics (MERMAID) Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Direction de Recherche Fondamentale (CEA) (DRF (CEA)) Polytechnic University of Marche Ancona, Italy / Università Politecnica delle Marche Ancona, Italia (UNIVPM) Consiglio per la Ricerca in Agricoltura e l’analisi dell’economia agraria = Council for Agricultural Research and Economics (CREA) Stazione Zoologica Anton Dohrn (SZN) Instituto Espagňol de Oceanografia (IEO) Chercheur indépendant 2022-05 https://hal.science/hal-04430221 https://doi.org/10.1016/j.dsr.2022.103738 en eng HAL CCSD Elsevier info:eu-repo/semantics/altIdentifier/doi/10.1016/j.dsr.2022.103738 hal-04430221 https://hal.science/hal-04430221 doi:10.1016/j.dsr.2022.103738 ISSN: 0967-0637 Deep Sea Research Part I: Oceanographic Research Papers https://hal.science/hal-04430221 Deep Sea Research Part I: Oceanographic Research Papers, 2022, 183, pp.103738. ⟨10.1016/j.dsr.2022.103738⟩ Benthic assemblages Deep-sea ecosystems Gulf of Cadiz Vulnerable marine ecosystems ROV imaging [SDV]Life Sciences [q-bio] [SDE]Environmental Sciences info:eu-repo/semantics/article Journal articles 2022 ftuniversailles https://doi.org/10.1016/j.dsr.2022.103738 2024-04-18T00:19:32Z International audience 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 Université de Versailles Saint-Quentin-en-Yvelines: HAL-UVSQ Deep Sea Research Part I: Oceanographic Research Papers 183 103738