Long term monitoring of cold-water coral growth shows response to episodic meteorological events in the NW Mediterranean
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...
Published in: | Deep Sea Research Part I: Oceanographic Research Papers |
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Online Access: | https://hal-insu.archives-ouvertes.fr/insu-03691021 https://doi.org/10.1016/j.dsr.2020.103255 |
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ftccsdartic:oai:HAL:insu-03691021v1 2023-05-15T17:08:42+02:00 Long term monitoring of cold-water coral growth shows response to episodic meteorological events in the NW Mediterranean Chapron, L. Le Bris, N. Durrieu de Madron, Xavier Peru, E. Galand, P. E. Lartaud, F. Centre de Formation et de Recherche sur les Environnements Méditérranéens (CEFREM) Université de Perpignan Via Domitia (UPVD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS) 2020 https://hal-insu.archives-ouvertes.fr/insu-03691021 https://doi.org/10.1016/j.dsr.2020.103255 en eng HAL CCSD Elsevier info:eu-repo/semantics/altIdentifier/doi/10.1016/j.dsr.2020.103255 insu-03691021 https://hal-insu.archives-ouvertes.fr/insu-03691021 BIBCODE: 2020DSRI.16003255C doi:10.1016/j.dsr.2020.103255 ISSN: 0198-0149 Deep-sea research. Part A, Oceanographic research papers https://hal-insu.archives-ouvertes.fr/insu-03691021 Deep-sea research. Part A, Oceanographic research papers, 2020, 160, ⟨10.1016/j.dsr.2020.103255⟩ Lophelia pertusa Madrepora oculata Lacaze-Duthiers canyon in situ Skeletal growth Dense-water cascading [SDU]Sciences of the Universe [physics] info:eu-repo/semantics/article Journal articles 2020 ftccsdartic https://doi.org/10.1016/j.dsr.2020.103255 2023-03-19T04:43:11Z 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) Deep Sea Research Part I: Oceanographic Research Papers 160 103255 |
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 |
Lophelia pertusa Madrepora oculata Lacaze-Duthiers canyon in situ Skeletal growth Dense-water cascading [SDU]Sciences of the Universe [physics] |
spellingShingle |
Lophelia pertusa Madrepora oculata Lacaze-Duthiers canyon in situ Skeletal growth Dense-water cascading [SDU]Sciences of the Universe [physics] Chapron, L. Le Bris, N. Durrieu de Madron, Xavier Peru, E. Galand, P. E. Lartaud, F. Long term monitoring of cold-water coral growth shows response to episodic meteorological events in the NW Mediterranean |
topic_facet |
Lophelia pertusa Madrepora oculata Lacaze-Duthiers canyon in situ Skeletal growth Dense-water cascading [SDU]Sciences of the Universe [physics] |
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 |
Centre de Formation et de Recherche sur les Environnements Méditérranéens (CEFREM) Université de Perpignan Via Domitia (UPVD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS) |
format |
Article in Journal/Newspaper |
author |
Chapron, L. Le Bris, N. Durrieu de Madron, Xavier Peru, E. Galand, P. E. Lartaud, F. |
author_facet |
Chapron, L. Le Bris, N. Durrieu de Madron, Xavier Peru, E. Galand, P. E. Lartaud, F. |
author_sort |
Chapron, L. |
title |
Long term monitoring of cold-water coral growth shows response to episodic meteorological events in the NW Mediterranean |
title_short |
Long term monitoring of cold-water coral growth shows response to episodic meteorological events in the NW Mediterranean |
title_full |
Long term monitoring of cold-water coral growth shows response to episodic meteorological events in the NW Mediterranean |
title_fullStr |
Long term monitoring of cold-water coral growth shows response to episodic meteorological events in the NW Mediterranean |
title_full_unstemmed |
Long term monitoring of cold-water coral growth shows response to episodic meteorological events in the NW Mediterranean |
title_sort |
long term monitoring of cold-water coral growth shows response to episodic meteorological events in the nw mediterranean |
publisher |
HAL CCSD |
publishDate |
2020 |
url |
https://hal-insu.archives-ouvertes.fr/insu-03691021 https://doi.org/10.1016/j.dsr.2020.103255 |
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: 0198-0149 Deep-sea research. Part A, Oceanographic research papers https://hal-insu.archives-ouvertes.fr/insu-03691021 Deep-sea research. Part A, Oceanographic research papers, 2020, 160, ⟨10.1016/j.dsr.2020.103255⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.dsr.2020.103255 insu-03691021 https://hal-insu.archives-ouvertes.fr/insu-03691021 BIBCODE: 2020DSRI.16003255C doi:10.1016/j.dsr.2020.103255 |
op_doi |
https://doi.org/10.1016/j.dsr.2020.103255 |
container_title |
Deep Sea Research Part I: Oceanographic Research Papers |
container_volume |
160 |
container_start_page |
103255 |
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1766064527249506304 |