Long term monitoring of cold-water coral growth shows response to 1 episodic meteorological events in the NW Mediterranean 2
International audience Lophelia pertusa and Madrepora oculata, two cosmopolitan coral species of the deep ocean, build reef-like structures that provide ecological niches and nurseries for many species. These cold-water corals (CWCs) are thought to grow slowly making associated communities vulnerabl...
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Format: | Article in Journal/Newspaper |
Language: | English |
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HAL CCSD
2020
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Online Access: | https://hal.sorbonne-universite.fr/hal-02878623 https://hal.sorbonne-universite.fr/hal-02878623/document https://hal.sorbonne-universite.fr/hal-02878623/file/Chapron%20et%20al.,%202020_DSR%20I_draft_HAL.pdf |
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ftccsdartic:oai:HAL:hal-02878623v1 |
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record_format |
openpolar |
institution |
Open Polar |
collection |
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) |
op_collection_id |
ftccsdartic |
language |
English |
topic |
Skeletal growth Dense-water cascading Lacaze-Duthiers canyon in situ Lophelia pertusa Madrepora oculata [SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography |
spellingShingle |
Skeletal growth Dense-water cascading Lacaze-Duthiers canyon in situ Lophelia pertusa Madrepora oculata [SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography Chapron, Leila Le Bris, N. Durrieu de Madron, Xavier Peru, Erwan Galand, Pierre E. Lartaud, Franck Long term monitoring of cold-water coral growth shows response to 1 episodic meteorological events in the NW Mediterranean 2 |
topic_facet |
Skeletal growth Dense-water cascading Lacaze-Duthiers canyon in situ Lophelia pertusa Madrepora oculata [SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography |
description |
International audience Lophelia pertusa and Madrepora oculata, two cosmopolitan coral species of the deep ocean, build reef-like structures that provide ecological niches and nurseries for many species. These cold-water corals (CWCs) are thought to grow slowly making associated communities vulnerable to disturbance. However, in situ growth dynamics remains poorly known. The aim of this study was thus to quantify the growth rates of L. pertusa and M. oculata and their variability in relation to environmental conditions that are expected to influence their physiological functions. Such data can be useful to ground-truth physiological rates and improve the prediction of their sensitivity to global change.As part of a long-term monitoring programme of the Lacaze-Duthiers canyon in the Northwestern Mediterranean Sea, fragments of the two species were repeatedly sampled and redeployed at 530 m depth, from November 2010 to May 2018. Budding rates and linear extensions of L. pertusa and M. oculata were hence quantified and their inter-annual variability documented. The data were analyzed in relation to in situ monitoring of water temperature, current speed and turbidity.This study presents the longest in situ survey of the growth patterns of L. pertusa and M. oculata. The observations revealed a strong inter-annual variability in growth rates, both for L. pertusa and M. oculata, and suggest an influence of hydrological conditions on the growth dynamics. Particularly, as regard to episodic water plumes events such as NW wind-induced dense water shelf cascades and E-SE storm-induced downwellings in autumn-winter. In this study, three types of responses were observed: (i) high budding rates but low colony linear extension for strong water plume events periods (ii) high budding rates and high linear extension associated to organic matter supply during medium intensity water plume events, and (iii) low budding rates, low linear extension and high mortality due to high sedimentation rates in the absence of water plume ... |
author2 |
Laboratoire d'Ecogéochimie des environnements benthiques (LECOB) Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Observatoire océanologique de Banyuls (OOB) Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS) Laboratoire de recherche en Hydrodynamique, Énergétique et Environnement Atmosphérique (LHEEA) École Centrale de Nantes (ECN)-Centre National de la Recherche Scientifique (CNRS) Centre de Formation et de Recherche sur les Environnements Méditérranéens (CEFREM) Université de Perpignan Via Domitia (UPVD)-Centre National de la Recherche Scientifique (CNRS) |
format |
Article in Journal/Newspaper |
author |
Chapron, Leila Le Bris, N. Durrieu de Madron, Xavier Peru, Erwan Galand, Pierre E. Lartaud, Franck |
author_facet |
Chapron, Leila Le Bris, N. Durrieu de Madron, Xavier Peru, Erwan Galand, Pierre E. Lartaud, Franck |
author_sort |
Chapron, Leila |
title |
Long term monitoring of cold-water coral growth shows response to 1 episodic meteorological events in the NW Mediterranean 2 |
title_short |
Long term monitoring of cold-water coral growth shows response to 1 episodic meteorological events in the NW Mediterranean 2 |
title_full |
Long term monitoring of cold-water coral growth shows response to 1 episodic meteorological events in the NW Mediterranean 2 |
title_fullStr |
Long term monitoring of cold-water coral growth shows response to 1 episodic meteorological events in the NW Mediterranean 2 |
title_full_unstemmed |
Long term monitoring of cold-water coral growth shows response to 1 episodic meteorological events in the NW Mediterranean 2 |
title_sort |
long term monitoring of cold-water coral growth shows response to 1 episodic meteorological events in the nw mediterranean 2 |
publisher |
HAL CCSD |
publishDate |
2020 |
url |
https://hal.sorbonne-universite.fr/hal-02878623 https://hal.sorbonne-universite.fr/hal-02878623/document https://hal.sorbonne-universite.fr/hal-02878623/file/Chapron%20et%20al.,%202020_DSR%20I_draft_HAL.pdf |
long_lat |
ENVELOPE(-62.818,-62.818,-64.805,-64.805) ENVELOPE(-62.817,-62.817,-64.800,-64.800) |
geographic |
Duthiers Lacaze-Duthiers |
geographic_facet |
Duthiers Lacaze-Duthiers |
genre |
Lophelia pertusa |
genre_facet |
Lophelia pertusa |
op_source |
ISSN: 0967-0637 Deep Sea Research Part I: Oceanographic Research Papers https://hal.sorbonne-universite.fr/hal-02878623 Deep Sea Research Part I: Oceanographic Research Papers, Elsevier, 2020 |
op_relation |
hal-02878623 https://hal.sorbonne-universite.fr/hal-02878623 https://hal.sorbonne-universite.fr/hal-02878623/document https://hal.sorbonne-universite.fr/hal-02878623/file/Chapron%20et%20al.,%202020_DSR%20I_draft_HAL.pdf |
op_rights |
info:eu-repo/semantics/OpenAccess |
_version_ |
1766064523463098368 |
spelling |
ftccsdartic:oai:HAL:hal-02878623v1 2023-05-15T17:08:42+02:00 Long term monitoring of cold-water coral growth shows response to 1 episodic meteorological events in the NW Mediterranean 2 Chapron, Leila Le Bris, N. Durrieu de Madron, Xavier Peru, Erwan Galand, Pierre E. Lartaud, Franck Laboratoire d'Ecogéochimie des environnements benthiques (LECOB) Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Observatoire océanologique de Banyuls (OOB) Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS) Laboratoire de recherche en Hydrodynamique, Énergétique et Environnement Atmosphérique (LHEEA) École Centrale de Nantes (ECN)-Centre National de la Recherche Scientifique (CNRS) Centre de Formation et de Recherche sur les Environnements Méditérranéens (CEFREM) Université de Perpignan Via Domitia (UPVD)-Centre National de la Recherche Scientifique (CNRS) 2020-06 https://hal.sorbonne-universite.fr/hal-02878623 https://hal.sorbonne-universite.fr/hal-02878623/document https://hal.sorbonne-universite.fr/hal-02878623/file/Chapron%20et%20al.,%202020_DSR%20I_draft_HAL.pdf en eng HAL CCSD Elsevier hal-02878623 https://hal.sorbonne-universite.fr/hal-02878623 https://hal.sorbonne-universite.fr/hal-02878623/document https://hal.sorbonne-universite.fr/hal-02878623/file/Chapron%20et%20al.,%202020_DSR%20I_draft_HAL.pdf info:eu-repo/semantics/OpenAccess ISSN: 0967-0637 Deep Sea Research Part I: Oceanographic Research Papers https://hal.sorbonne-universite.fr/hal-02878623 Deep Sea Research Part I: Oceanographic Research Papers, Elsevier, 2020 Skeletal growth Dense-water cascading Lacaze-Duthiers canyon in situ Lophelia pertusa Madrepora oculata [SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography info:eu-repo/semantics/article Journal articles 2020 ftccsdartic 2021-12-12T01:25:13Z International audience Lophelia pertusa and Madrepora oculata, two cosmopolitan coral species of the deep ocean, build reef-like structures that provide ecological niches and nurseries for many species. These cold-water corals (CWCs) are thought to grow slowly making associated communities vulnerable to disturbance. However, in situ growth dynamics remains poorly known. The aim of this study was thus to quantify the growth rates of L. pertusa and M. oculata and their variability in relation to environmental conditions that are expected to influence their physiological functions. Such data can be useful to ground-truth physiological rates and improve the prediction of their sensitivity to global change.As part of a long-term monitoring programme of the Lacaze-Duthiers canyon in the Northwestern Mediterranean Sea, fragments of the two species were repeatedly sampled and redeployed at 530 m depth, from November 2010 to May 2018. Budding rates and linear extensions of L. pertusa and M. oculata were hence quantified and their inter-annual variability documented. The data were analyzed in relation to in situ monitoring of water temperature, current speed and turbidity.This study presents the longest in situ survey of the growth patterns of L. pertusa and M. oculata. The observations revealed a strong inter-annual variability in growth rates, both for L. pertusa and M. oculata, and suggest an influence of hydrological conditions on the growth dynamics. Particularly, as regard to episodic water plumes events such as NW wind-induced dense water shelf cascades and E-SE storm-induced downwellings in autumn-winter. In this study, three types of responses were observed: (i) high budding rates but low colony linear extension for strong water plume events periods (ii) high budding rates and high linear extension associated to organic matter supply during medium intensity water plume events, and (iii) low budding rates, low linear extension and high mortality due to high sedimentation rates in the absence of water plume ... Article in Journal/Newspaper Lophelia pertusa Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) Duthiers ENVELOPE(-62.818,-62.818,-64.805,-64.805) Lacaze-Duthiers ENVELOPE(-62.817,-62.817,-64.800,-64.800) |