Water column stability and Calanus finmarchicus
International audience Many authors have suggested that the abundance of the subarctic species Calanus finmarchicus can be influenced by the structure of the water column. Unfortunately to date, such a link has never been confirmed either experimentally or statistically. By using a macroecological a...
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ftunimontpellier:oai:HAL:hal-00614186v1 2023-12-17T10:28:26+01:00 Water column stability and Calanus finmarchicus Reygondeau, Gabriel Beaugrand, Gregory Ecosystèmes Marins Exploités (UMR EME) Institut de Recherche pour le Développement (IRD)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Université de Montpellier (UM) Citadel Hill, the Hoe Alister Hardy Foundation for Ocean Science 2010-08-10 https://hal.science/hal-00614186 https://hal.science/hal-00614186/document https://hal.science/hal-00614186/file/PEER_stage2_10.1093%252Fplankt%252FFBQ091.pdf https://doi.org/10.1093/plankt/FBQ091 en eng HAL CCSD Oxford University Press (OUP) info:eu-repo/semantics/altIdentifier/doi/10.1093/plankt/FBQ091 hal-00614186 https://hal.science/hal-00614186 https://hal.science/hal-00614186/document https://hal.science/hal-00614186/file/PEER_stage2_10.1093%252Fplankt%252FFBQ091.pdf doi:10.1093/plankt/FBQ091 info:eu-repo/semantics/OpenAccess ISSN: 0142-7873 EISSN: 1464-3774 Journal of Plankton Research https://hal.science/hal-00614186 Journal of Plankton Research, 2010, 33 (1), pp.119. ⟨10.1093/plankt/FBQ091⟩ Life Sciences info:eu-repo/semantics/article Journal articles 2010 ftunimontpellier https://doi.org/10.1093/plankt/FBQ091 2023-11-21T23:33:51Z International audience Many authors have suggested that the abundance of the subarctic species Calanus finmarchicus can be influenced by the structure of the water column. Unfortunately to date, such a link has never been confirmed either experimentally or statistically. By using a macroecological approach, we investigated this hypothesis and showed that it varies with the developmental staged of the species. First, we implemented a new statistical procedure, based on an exponentially weighted moving average, to identify and quantify the depth and intensity of the thermocline. We applied the technique on 1,005,619 temperature profiles over the North Atlantic Ocean and provided a mapping of these two descriptors at a seasonal scale. Second, we studied the relationships between the depth and the intensity of the thermocline and Calanus finmarchicus using a biological dataset of 99,599 sampling stations. Our results suggested that the characteristics of the water column influence the spatial distribution of C. finmarchicus. The frequency in the occurrence of this species decreases when stratification rises. Our results further revealed that the effect is more pronounced on young copepodite stages. Such findings are of interest since, in a warmer world, water stratification is expected to increase, making more likely a reduction in the abundance of this key-structural species. Article in Journal/Newspaper Calanus finmarchicus North Atlantic Subarctic Université de Montpellier: HAL Journal of Plankton Research 33 1 119 136 |
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Life Sciences |
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Life Sciences Reygondeau, Gabriel Beaugrand, Gregory Water column stability and Calanus finmarchicus |
topic_facet |
Life Sciences |
description |
International audience Many authors have suggested that the abundance of the subarctic species Calanus finmarchicus can be influenced by the structure of the water column. Unfortunately to date, such a link has never been confirmed either experimentally or statistically. By using a macroecological approach, we investigated this hypothesis and showed that it varies with the developmental staged of the species. First, we implemented a new statistical procedure, based on an exponentially weighted moving average, to identify and quantify the depth and intensity of the thermocline. We applied the technique on 1,005,619 temperature profiles over the North Atlantic Ocean and provided a mapping of these two descriptors at a seasonal scale. Second, we studied the relationships between the depth and the intensity of the thermocline and Calanus finmarchicus using a biological dataset of 99,599 sampling stations. Our results suggested that the characteristics of the water column influence the spatial distribution of C. finmarchicus. The frequency in the occurrence of this species decreases when stratification rises. Our results further revealed that the effect is more pronounced on young copepodite stages. Such findings are of interest since, in a warmer world, water stratification is expected to increase, making more likely a reduction in the abundance of this key-structural species. |
author2 |
Ecosystèmes Marins Exploités (UMR EME) Institut de Recherche pour le Développement (IRD)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Université de Montpellier (UM) Citadel Hill, the Hoe Alister Hardy Foundation for Ocean Science |
format |
Article in Journal/Newspaper |
author |
Reygondeau, Gabriel Beaugrand, Gregory |
author_facet |
Reygondeau, Gabriel Beaugrand, Gregory |
author_sort |
Reygondeau, Gabriel |
title |
Water column stability and Calanus finmarchicus |
title_short |
Water column stability and Calanus finmarchicus |
title_full |
Water column stability and Calanus finmarchicus |
title_fullStr |
Water column stability and Calanus finmarchicus |
title_full_unstemmed |
Water column stability and Calanus finmarchicus |
title_sort |
water column stability and calanus finmarchicus |
publisher |
HAL CCSD |
publishDate |
2010 |
url |
https://hal.science/hal-00614186 https://hal.science/hal-00614186/document https://hal.science/hal-00614186/file/PEER_stage2_10.1093%252Fplankt%252FFBQ091.pdf https://doi.org/10.1093/plankt/FBQ091 |
genre |
Calanus finmarchicus North Atlantic Subarctic |
genre_facet |
Calanus finmarchicus North Atlantic Subarctic |
op_source |
ISSN: 0142-7873 EISSN: 1464-3774 Journal of Plankton Research https://hal.science/hal-00614186 Journal of Plankton Research, 2010, 33 (1), pp.119. ⟨10.1093/plankt/FBQ091⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1093/plankt/FBQ091 hal-00614186 https://hal.science/hal-00614186 https://hal.science/hal-00614186/document https://hal.science/hal-00614186/file/PEER_stage2_10.1093%252Fplankt%252FFBQ091.pdf doi:10.1093/plankt/FBQ091 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1093/plankt/FBQ091 |
container_title |
Journal of Plankton Research |
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33 |
container_issue |
1 |
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119 |
op_container_end_page |
136 |
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1785580543372427264 |