Using growth and geochemical composition of Clathromorphum compactum to track multiscale North Atlantic hydro-climate variability
International audience Records of ocean/atmosphere dynamics over the past centuries are essential to understand processes driving climate variability. This is particularly true for the Northwest Atlantic which is a key region with an essential role in global climate regulation. Over the past two dec...
Published in: | Palaeogeography, Palaeoclimatology, Palaeoecology |
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Main Authors: | , , , , , |
Other Authors: | , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
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HAL CCSD
2020
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Subjects: | |
Online Access: | https://hal.science/hal-03015217 https://hal.science/hal-03015217/document https://hal.science/hal-03015217/file/S0031018220305459.pdf https://doi.org/10.1016/j.palaeo.2020.110097 |
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ftunivbrest:oai:HAL:hal-03015217v1 |
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record_format |
openpolar |
institution |
Open Polar |
collection |
Université de Bretagne Occidentale: HAL |
op_collection_id |
ftunivbrest |
language |
English |
topic |
ACL Climate change Sclerochronology Environmental reconstruction Coralline algae Environmental proxy [SDE.BE]Environmental Sciences/Biodiversity and Ecology |
spellingShingle |
ACL Climate change Sclerochronology Environmental reconstruction Coralline algae Environmental proxy [SDE.BE]Environmental Sciences/Biodiversity and Ecology Siebert, Valentin Poitevin, Pierre Chauvaud, Laurent Schöne, Bernd R. Lazure, Pascal Thébault, Julien Using growth and geochemical composition of Clathromorphum compactum to track multiscale North Atlantic hydro-climate variability |
topic_facet |
ACL Climate change Sclerochronology Environmental reconstruction Coralline algae Environmental proxy [SDE.BE]Environmental Sciences/Biodiversity and Ecology |
description |
International audience Records of ocean/atmosphere dynamics over the past centuries are essential to understand processes driving climate variability. This is particularly true for the Northwest Atlantic which is a key region with an essential role in global climate regulation. Over the past two decades, coralline red algae have been increasingly used as environmental and climatic archives for the marine realm and hold the potential to extend long-term instrumental measurements. Here, we investigate the possibility to extract climate and environmental information from annual growth patterns and geochemical composition of the coralline red algae, Clathromorphum compactum, from Saint-Pierre & Miquelon (SPM), a French archipelago southwest of Newfoundland. However, measurements of C. compactum growth trends is challenging due to difficulties in identifying annual growth lines directly. So far, growth pattern investigations were commonly performed based on geochemical data of coralline calcite matrix. Nonetheless, this method is expensive and therefore prevents from analyzing a large number of specimens that would be representative of the population. For this reason, we enhanced the growth line readability by staining polished sections with Mutvei's solution and performed growth analysis based on direct increment width measurements. Geochemical analyses were also carried out in order to validate the assumption that growth lines observed after staining were formed on an annual basis. Moreover, growth pattern and trace element composition were measured on multiple axes of several individuals in order to assess the intra- and inter-specimen variability and validate their use for paleoenvironmental reconstructions. Finally, relationships between the C. compactum sclerochronological records from SPM and environmental datasets covering different geographical areas allow a better knowledge of flow dynamics in the Northwest Atlantic and confirm the findings related to Arctica islandica from the same location. |
author2 |
Laboratoire des Sciences de l'Environnement Marin (LEMAR) (LEMAR) Institut de Recherche pour le Développement (IRD)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Université de Brest (UBO)-Institut Universitaire Européen de la Mer (IUEM) Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS) Institut für Geowissenschaften Mainz Johannes Gutenberg - Universität Mainz = Johannes Gutenberg University (JGU) Laboratoire d'Océanographie Physique et Spatiale (LOPS) Institut de Recherche pour le Développement (IRD)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS) Interdisciplinary Graduate School for the Blue planet ANR-17-EURE-0015,ISBlue,Interdisciplinary Graduate School for the Blue planet(2017) |
format |
Article in Journal/Newspaper |
author |
Siebert, Valentin Poitevin, Pierre Chauvaud, Laurent Schöne, Bernd R. Lazure, Pascal Thébault, Julien |
author_facet |
Siebert, Valentin Poitevin, Pierre Chauvaud, Laurent Schöne, Bernd R. Lazure, Pascal Thébault, Julien |
author_sort |
Siebert, Valentin |
title |
Using growth and geochemical composition of Clathromorphum compactum to track multiscale North Atlantic hydro-climate variability |
title_short |
Using growth and geochemical composition of Clathromorphum compactum to track multiscale North Atlantic hydro-climate variability |
title_full |
Using growth and geochemical composition of Clathromorphum compactum to track multiscale North Atlantic hydro-climate variability |
title_fullStr |
Using growth and geochemical composition of Clathromorphum compactum to track multiscale North Atlantic hydro-climate variability |
title_full_unstemmed |
Using growth and geochemical composition of Clathromorphum compactum to track multiscale North Atlantic hydro-climate variability |
title_sort |
using growth and geochemical composition of clathromorphum compactum to track multiscale north atlantic hydro-climate variability |
publisher |
HAL CCSD |
publishDate |
2020 |
url |
https://hal.science/hal-03015217 https://hal.science/hal-03015217/document https://hal.science/hal-03015217/file/S0031018220305459.pdf https://doi.org/10.1016/j.palaeo.2020.110097 |
genre |
Arctica islandica Newfoundland North Atlantic Northwest Atlantic |
genre_facet |
Arctica islandica Newfoundland North Atlantic Northwest Atlantic |
op_source |
ISSN: 0031-0182 EISSN: 1872-616X Palaeogeography, Palaeoclimatology, Palaeoecology https://hal.science/hal-03015217 Palaeogeography, Palaeoclimatology, Palaeoecology, 2020, Early view, pp.110097. ⟨10.1016/j.palaeo.2020.110097⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.palaeo.2020.110097 hal-03015217 https://hal.science/hal-03015217 https://hal.science/hal-03015217/document https://hal.science/hal-03015217/file/S0031018220305459.pdf doi:10.1016/j.palaeo.2020.110097 PII: S0031-0182(20)30545-9 |
op_rights |
http://creativecommons.org/licenses/by-nc/ info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1016/j.palaeo.2020.110097 |
container_title |
Palaeogeography, Palaeoclimatology, Palaeoecology |
container_volume |
562 |
container_start_page |
110097 |
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1796306119490011136 |
spelling |
ftunivbrest:oai:HAL:hal-03015217v1 2024-04-14T08:08:42+00:00 Using growth and geochemical composition of Clathromorphum compactum to track multiscale North Atlantic hydro-climate variability Siebert, Valentin Poitevin, Pierre Chauvaud, Laurent Schöne, Bernd R. Lazure, Pascal Thébault, Julien Laboratoire des Sciences de l'Environnement Marin (LEMAR) (LEMAR) Institut de Recherche pour le Développement (IRD)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Université de Brest (UBO)-Institut Universitaire Européen de la Mer (IUEM) Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS) Institut für Geowissenschaften Mainz Johannes Gutenberg - Universität Mainz = Johannes Gutenberg University (JGU) Laboratoire d'Océanographie Physique et Spatiale (LOPS) Institut de Recherche pour le Développement (IRD)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS) Interdisciplinary Graduate School for the Blue planet ANR-17-EURE-0015,ISBlue,Interdisciplinary Graduate School for the Blue planet(2017) 2020 https://hal.science/hal-03015217 https://hal.science/hal-03015217/document https://hal.science/hal-03015217/file/S0031018220305459.pdf https://doi.org/10.1016/j.palaeo.2020.110097 en eng HAL CCSD Elsevier info:eu-repo/semantics/altIdentifier/doi/10.1016/j.palaeo.2020.110097 hal-03015217 https://hal.science/hal-03015217 https://hal.science/hal-03015217/document https://hal.science/hal-03015217/file/S0031018220305459.pdf doi:10.1016/j.palaeo.2020.110097 PII: S0031-0182(20)30545-9 http://creativecommons.org/licenses/by-nc/ info:eu-repo/semantics/OpenAccess ISSN: 0031-0182 EISSN: 1872-616X Palaeogeography, Palaeoclimatology, Palaeoecology https://hal.science/hal-03015217 Palaeogeography, Palaeoclimatology, Palaeoecology, 2020, Early view, pp.110097. ⟨10.1016/j.palaeo.2020.110097⟩ ACL Climate change Sclerochronology Environmental reconstruction Coralline algae Environmental proxy [SDE.BE]Environmental Sciences/Biodiversity and Ecology info:eu-repo/semantics/article Journal articles 2020 ftunivbrest https://doi.org/10.1016/j.palaeo.2020.110097 2024-03-21T16:24:19Z International audience Records of ocean/atmosphere dynamics over the past centuries are essential to understand processes driving climate variability. This is particularly true for the Northwest Atlantic which is a key region with an essential role in global climate regulation. Over the past two decades, coralline red algae have been increasingly used as environmental and climatic archives for the marine realm and hold the potential to extend long-term instrumental measurements. Here, we investigate the possibility to extract climate and environmental information from annual growth patterns and geochemical composition of the coralline red algae, Clathromorphum compactum, from Saint-Pierre & Miquelon (SPM), a French archipelago southwest of Newfoundland. However, measurements of C. compactum growth trends is challenging due to difficulties in identifying annual growth lines directly. So far, growth pattern investigations were commonly performed based on geochemical data of coralline calcite matrix. Nonetheless, this method is expensive and therefore prevents from analyzing a large number of specimens that would be representative of the population. For this reason, we enhanced the growth line readability by staining polished sections with Mutvei's solution and performed growth analysis based on direct increment width measurements. Geochemical analyses were also carried out in order to validate the assumption that growth lines observed after staining were formed on an annual basis. Moreover, growth pattern and trace element composition were measured on multiple axes of several individuals in order to assess the intra- and inter-specimen variability and validate their use for paleoenvironmental reconstructions. Finally, relationships between the C. compactum sclerochronological records from SPM and environmental datasets covering different geographical areas allow a better knowledge of flow dynamics in the Northwest Atlantic and confirm the findings related to Arctica islandica from the same location. Article in Journal/Newspaper Arctica islandica Newfoundland North Atlantic Northwest Atlantic Université de Bretagne Occidentale: HAL Palaeogeography, Palaeoclimatology, Palaeoecology 562 110097 |