Pteropod time series from the North Western Mediterranean (1967-2003): impacts of pH and climate variability
International audience Environmental changes resulting from anthropogenic CO2 emissions occur at global and local levels and have potentially harmful effects, particularly for calcifying taxa in the marine environment. A time series of pteropod abundance covering the period 1967-2003 was isolated fr...
Published in: | Marine Ecology Progress Series |
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Main Authors: | , , , , , , |
Other Authors: | , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
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HAL CCSD
2015
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Online Access: | https://hal.science/hal-03502730 https://hal.science/hal-03502730/document https://hal.science/hal-03502730/file/m531p193.pdf https://doi.org/10.3354/meps11322 |
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HAL Sorbonne Université |
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ftsorbonneuniv |
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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 Howes, E. L. Stemmann, L. Assailly, C. Irisson, J. -O. Dima, M. Bijma, J. Gattuso, J. -P. Pteropod time series from the North Western Mediterranean (1967-2003): impacts of pH and climate variability |
topic_facet |
[SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography |
description |
International audience Environmental changes resulting from anthropogenic CO2 emissions occur at global and local levels and have potentially harmful effects, particularly for calcifying taxa in the marine environment. A time series of pteropod abundance covering the period 1967-2003 was isolated from the Point B (northwestern Ligurian Sea) zooplankton time series. Inter-and intra-annual changes in the abundance of 3 families (Limacinidae, Cavoliniidae and Creseidae) were compared with the copepod time series to identify any differential effects driven by ocean acidification and temperature. pH values were hind-cast from total alkalinity estimated from local temperature and salinity measurements, and atmospheric CO2 taken from the Mauna Loa time series. Although surface waters were supersaturated with respect to aragonite throughout the study period, it is estimated that pH declined by 0.05 units. All pteropod groups displayed a trend of increasing abundance, suggesting that any deleterious effect of declining pH(T) in the range of 0.05 units has not caused sufficient reductions in fitness as to decrease local abundances between 1967-2003. Pteropod populations are influenced by inter-annual changes in summer temperatures. Spectral analysis identified a similar to 14 yr periodic oscillation in sea surface temperature. Similarly timed oscillations in abundance are present for all pteropod families but not for copepods, indicating a possible influence of the North Atlantic quasi-decadal mode on pteropod populations. While laboratory studies have shown pteropods to be sensitive to changes in pH, this analysis suggests that local and regional scale drivers have had a greater effect on pteropod populations in the northwestern Mediterranean Sea in recent decades. It should be noted that pH changes in laboratory studies exceed 0.05 pH units and that the saturation state with respect to aragonite (Oar) is usually much lower than that of the Mediterranean. |
author2 |
Laboratoire d'océanographie de Villefranche (LOV) Observatoire océanologique de Villefranche-sur-mer (OOVM) Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS) Department of Bentho-pelagic processes Alfred-Wegener-Institut, Helmholtz-Zentrum für Polar- und Meeresforschung = Alfred Wegener Institute for Polar and Marine Research = Institut Alfred-Wegener pour la recherche polaire et marine (AWI) Helmholtz-Gemeinschaft = Helmholtz Association-Helmholtz-Gemeinschaft = Helmholtz Association Helmholtz-Gemeinschaft = Helmholtz Association |
format |
Article in Journal/Newspaper |
author |
Howes, E. L. Stemmann, L. Assailly, C. Irisson, J. -O. Dima, M. Bijma, J. Gattuso, J. -P. |
author_facet |
Howes, E. L. Stemmann, L. Assailly, C. Irisson, J. -O. Dima, M. Bijma, J. Gattuso, J. -P. |
author_sort |
Howes, E. L. |
title |
Pteropod time series from the North Western Mediterranean (1967-2003): impacts of pH and climate variability |
title_short |
Pteropod time series from the North Western Mediterranean (1967-2003): impacts of pH and climate variability |
title_full |
Pteropod time series from the North Western Mediterranean (1967-2003): impacts of pH and climate variability |
title_fullStr |
Pteropod time series from the North Western Mediterranean (1967-2003): impacts of pH and climate variability |
title_full_unstemmed |
Pteropod time series from the North Western Mediterranean (1967-2003): impacts of pH and climate variability |
title_sort |
pteropod time series from the north western mediterranean (1967-2003): impacts of ph and climate variability |
publisher |
HAL CCSD |
publishDate |
2015 |
url |
https://hal.science/hal-03502730 https://hal.science/hal-03502730/document https://hal.science/hal-03502730/file/m531p193.pdf https://doi.org/10.3354/meps11322 |
genre |
North Atlantic Ocean acidification Copepods |
genre_facet |
North Atlantic Ocean acidification Copepods |
op_source |
ISSN: 0171-8630 EISSN: 1616-1599 Marine Ecology Progress Series https://hal.science/hal-03502730 Marine Ecology Progress Series, 2015, 531, pp.193-206. ⟨10.3354/meps11322⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.3354/meps11322 hal-03502730 https://hal.science/hal-03502730 https://hal.science/hal-03502730/document https://hal.science/hal-03502730/file/m531p193.pdf doi:10.3354/meps11322 |
op_rights |
http://creativecommons.org/licenses/by/ info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.3354/meps11322 |
container_title |
Marine Ecology Progress Series |
container_volume |
531 |
container_start_page |
193 |
op_container_end_page |
206 |
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1810464462636843008 |
spelling |
ftsorbonneuniv:oai:HAL:hal-03502730v1 2024-09-15T18:24:09+00:00 Pteropod time series from the North Western Mediterranean (1967-2003): impacts of pH and climate variability Howes, E. L. Stemmann, L. Assailly, C. Irisson, J. -O. Dima, M. Bijma, J. Gattuso, J. -P. Laboratoire d'océanographie de Villefranche (LOV) Observatoire océanologique de Villefranche-sur-mer (OOVM) Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS) Department of Bentho-pelagic processes Alfred-Wegener-Institut, Helmholtz-Zentrum für Polar- und Meeresforschung = Alfred Wegener Institute for Polar and Marine Research = Institut Alfred-Wegener pour la recherche polaire et marine (AWI) Helmholtz-Gemeinschaft = Helmholtz Association-Helmholtz-Gemeinschaft = Helmholtz Association Helmholtz-Gemeinschaft = Helmholtz Association 2015 https://hal.science/hal-03502730 https://hal.science/hal-03502730/document https://hal.science/hal-03502730/file/m531p193.pdf https://doi.org/10.3354/meps11322 en eng HAL CCSD Inter Research info:eu-repo/semantics/altIdentifier/doi/10.3354/meps11322 hal-03502730 https://hal.science/hal-03502730 https://hal.science/hal-03502730/document https://hal.science/hal-03502730/file/m531p193.pdf doi:10.3354/meps11322 http://creativecommons.org/licenses/by/ info:eu-repo/semantics/OpenAccess ISSN: 0171-8630 EISSN: 1616-1599 Marine Ecology Progress Series https://hal.science/hal-03502730 Marine Ecology Progress Series, 2015, 531, pp.193-206. ⟨10.3354/meps11322⟩ [SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography info:eu-repo/semantics/article Journal articles 2015 ftsorbonneuniv https://doi.org/10.3354/meps11322 2024-07-25T23:47:52Z International audience Environmental changes resulting from anthropogenic CO2 emissions occur at global and local levels and have potentially harmful effects, particularly for calcifying taxa in the marine environment. A time series of pteropod abundance covering the period 1967-2003 was isolated from the Point B (northwestern Ligurian Sea) zooplankton time series. Inter-and intra-annual changes in the abundance of 3 families (Limacinidae, Cavoliniidae and Creseidae) were compared with the copepod time series to identify any differential effects driven by ocean acidification and temperature. pH values were hind-cast from total alkalinity estimated from local temperature and salinity measurements, and atmospheric CO2 taken from the Mauna Loa time series. Although surface waters were supersaturated with respect to aragonite throughout the study period, it is estimated that pH declined by 0.05 units. All pteropod groups displayed a trend of increasing abundance, suggesting that any deleterious effect of declining pH(T) in the range of 0.05 units has not caused sufficient reductions in fitness as to decrease local abundances between 1967-2003. Pteropod populations are influenced by inter-annual changes in summer temperatures. Spectral analysis identified a similar to 14 yr periodic oscillation in sea surface temperature. Similarly timed oscillations in abundance are present for all pteropod families but not for copepods, indicating a possible influence of the North Atlantic quasi-decadal mode on pteropod populations. While laboratory studies have shown pteropods to be sensitive to changes in pH, this analysis suggests that local and regional scale drivers have had a greater effect on pteropod populations in the northwestern Mediterranean Sea in recent decades. It should be noted that pH changes in laboratory studies exceed 0.05 pH units and that the saturation state with respect to aragonite (Oar) is usually much lower than that of the Mediterranean. Article in Journal/Newspaper North Atlantic Ocean acidification Copepods HAL Sorbonne Université Marine Ecology Progress Series 531 193 206 |