North Atlantic climate and northwestern Mediterranean plankton variability
Climate variability across three distinct spatial scales and the interannual changes of planktonic copepods and jellyfish were studied from November 1966 to December 1993. The results obtained identified a cascade of links between the large-scale climate pattern playing out in the North Atlantic and...
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ftinsu:oai:HAL:hal-03494208v1 2023-11-05T03:43:45+01:00 North Atlantic climate and northwestern Mediterranean plankton variability Molinero, Jc Ibanez, F Nival, P Buecher, E Souissi, S Laboratoire d'océanographie de Villefranche (LOV) Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut de la Mer de Villefranche (IMEV) Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS) 2005 https://hal.science/hal-03494208 https://doi.org/10.4319/lo.2005.50.4.1213 en eng HAL CCSD Association for the Sciences of Limnology and Oceanography info:eu-repo/semantics/altIdentifier/doi/10.4319/lo.2005.50.4.1213 hal-03494208 https://hal.science/hal-03494208 doi:10.4319/lo.2005.50.4.1213 ISSN: 0024-3590 EISSN: 1939-5590 Limnology and Oceanography https://hal.science/hal-03494208 Limnology and Oceanography, 2005, 50 (4), pp.1213-1220. ⟨10.4319/lo.2005.50.4.1213⟩ [SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography info:eu-repo/semantics/article Journal articles 2005 ftinsu https://doi.org/10.4319/lo.2005.50.4.1213 2023-10-11T16:31:46Z Climate variability across three distinct spatial scales and the interannual changes of planktonic copepods and jellyfish were studied from November 1966 to December 1993. The results obtained identified a cascade of links between the large-scale climate pattern playing out in the North Atlantic and the local climate variability governing the Ligurian Sea, northwestern Mediterranean. The chain of events appeared driven by the long-term temperature anomalies that in turn played a key role in the relationship between copepods and jellyfish. Indeed, the increase in jellyfish outbreaks during the 1980s was largely favored by high positive anomalies observed in climate at large (North Atlantic), regional (Ligurian Sea), and local (Villefranche Bay) spatial scales and in water temperature. Linked to jellyfish abundance, the dynamics of the relationship between copepods and jellyfish showed a strong modification during the middle-late 1980s, which highlight the top-down effect exerted by jellyfish on copepods. The warming temperatures and the observed ecological changes, high abundance of jellyfish, and marked drop in the abundance of copepods are discussed in the framework of a potential change in the functioning of the planktonic ecosystem indicative of a more regeneration-dominated production system in the Ligurian Sea. Overall, the cascade of links identified by these results should be considered and integrated into the assessment and modeling studies of pelagic ecosystem and biogeochemical fluxes in the northwestern Mediterranean Sea. Article in Journal/Newspaper North Atlantic Copepods Institut national des sciences de l'Univers: HAL-INSU Limnology and Oceanography 50 4 1213 1220 |
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Open Polar |
collection |
Institut national des sciences de l'Univers: HAL-INSU |
op_collection_id |
ftinsu |
language |
English |
topic |
[SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography |
spellingShingle |
[SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography Molinero, Jc Ibanez, F Nival, P Buecher, E Souissi, S North Atlantic climate and northwestern Mediterranean plankton variability |
topic_facet |
[SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography |
description |
Climate variability across three distinct spatial scales and the interannual changes of planktonic copepods and jellyfish were studied from November 1966 to December 1993. The results obtained identified a cascade of links between the large-scale climate pattern playing out in the North Atlantic and the local climate variability governing the Ligurian Sea, northwestern Mediterranean. The chain of events appeared driven by the long-term temperature anomalies that in turn played a key role in the relationship between copepods and jellyfish. Indeed, the increase in jellyfish outbreaks during the 1980s was largely favored by high positive anomalies observed in climate at large (North Atlantic), regional (Ligurian Sea), and local (Villefranche Bay) spatial scales and in water temperature. Linked to jellyfish abundance, the dynamics of the relationship between copepods and jellyfish showed a strong modification during the middle-late 1980s, which highlight the top-down effect exerted by jellyfish on copepods. The warming temperatures and the observed ecological changes, high abundance of jellyfish, and marked drop in the abundance of copepods are discussed in the framework of a potential change in the functioning of the planktonic ecosystem indicative of a more regeneration-dominated production system in the Ligurian Sea. Overall, the cascade of links identified by these results should be considered and integrated into the assessment and modeling studies of pelagic ecosystem and biogeochemical fluxes in the northwestern Mediterranean Sea. |
author2 |
Laboratoire d'océanographie de Villefranche (LOV) Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut de la Mer de Villefranche (IMEV) Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS) |
format |
Article in Journal/Newspaper |
author |
Molinero, Jc Ibanez, F Nival, P Buecher, E Souissi, S |
author_facet |
Molinero, Jc Ibanez, F Nival, P Buecher, E Souissi, S |
author_sort |
Molinero, Jc |
title |
North Atlantic climate and northwestern Mediterranean plankton variability |
title_short |
North Atlantic climate and northwestern Mediterranean plankton variability |
title_full |
North Atlantic climate and northwestern Mediterranean plankton variability |
title_fullStr |
North Atlantic climate and northwestern Mediterranean plankton variability |
title_full_unstemmed |
North Atlantic climate and northwestern Mediterranean plankton variability |
title_sort |
north atlantic climate and northwestern mediterranean plankton variability |
publisher |
HAL CCSD |
publishDate |
2005 |
url |
https://hal.science/hal-03494208 https://doi.org/10.4319/lo.2005.50.4.1213 |
genre |
North Atlantic Copepods |
genre_facet |
North Atlantic Copepods |
op_source |
ISSN: 0024-3590 EISSN: 1939-5590 Limnology and Oceanography https://hal.science/hal-03494208 Limnology and Oceanography, 2005, 50 (4), pp.1213-1220. ⟨10.4319/lo.2005.50.4.1213⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.4319/lo.2005.50.4.1213 hal-03494208 https://hal.science/hal-03494208 doi:10.4319/lo.2005.50.4.1213 |
op_doi |
https://doi.org/10.4319/lo.2005.50.4.1213 |
container_title |
Limnology and Oceanography |
container_volume |
50 |
container_issue |
4 |
container_start_page |
1213 |
op_container_end_page |
1220 |
_version_ |
1781702469306286080 |