First mesocosm experiments to study the impacts of ocean acidification on plankton communities in the NW Mediterranean Sea (MedSeA project)

F. Gazeau, A. Sallon, L. Maugendre, J. Louis, W. Dellisanti, M. Gaubert, P. Lejeune, S. Gobert, A. V. Borges, J. Harlay, W. Champenois, S. Alliouane, V. Taillandier, F. Louis, G. Obolensky, J. M. Grisoni, Cecile Guieu

Research output: Contribution to journalArticle

Abstract

There is a growing international interest in studying the effects of ocean acidification on plankton communities that play a major role in the global carbon cycle and in the consumption of atmospheric CO2 via the so-called biological pump. Recently, several mesocosm experiments reported on the effect of ocean acidification on marine plankton communities, although the majority were performed in eutrophic conditions or following nutrient addition. The objective of the present study was to perform two mesocosm experiments in the oligo- to meso-trophic Northwestern Mediterranean Sea during two seasons with contrasting environmental conditions: in summer 2012 in the Bay of Calvi (Corsica, France) and in winter 2013 in the Bay of Villefranche (France). This paper describes the objectives of these experiments, the study sites, the experimental set-up and the environmental and experimental conditions during the two experiments. The 20-day experiment in the Bay of Calvi was undoubtedly representative of summer conditions in the Northwestern Mediterranean Sea with low nutrient and chlorophyll a concentrations, warm waters and high surface solar irradiance. In contrast, the winter experiment, which was reduced to 12 days because of bad weather conditions, failed to reproduce the mesotrophic conditions typical of the wintertime in this area. Indeed, a rapid increase in phytoplankton biomass during the acidification phase led to a strong decrease in nitrate concentrations and an unrealistic N and P co-limitation at this period of the year. An overview of the 11 other papers related to this study and published in this special issue is provided.

Original languageEnglish (US)
Pages (from-to)11-29
Number of pages19
JournalEstuarine, Coastal and Shelf Science
Volume186
DOIs
StatePublished - Feb 15 2017

Fingerprint

mesocosm
Mediterranean Sea
plankton
France
Corsica
winter
summer
nutrients
pumps
acidification
solar radiation
weather
experiment
phytoplankton
nitrates
chlorophyll
environmental factors
biomass
biological pump
nutrient

Keywords

  • Mediterranean Sea
  • Ocean acidification
  • Oligotrophic area
  • Pelagic mesocosms
  • Plankton community

ASJC Scopus subject areas

  • Oceanography
  • Aquatic Science

Cite this

First mesocosm experiments to study the impacts of ocean acidification on plankton communities in the NW Mediterranean Sea (MedSeA project). / Gazeau, F.; Sallon, A.; Maugendre, L.; Louis, J.; Dellisanti, W.; Gaubert, M.; Lejeune, P.; Gobert, S.; Borges, A. V.; Harlay, J.; Champenois, W.; Alliouane, S.; Taillandier, V.; Louis, F.; Obolensky, G.; Grisoni, J. M.; Guieu, Cecile.

In: Estuarine, Coastal and Shelf Science, Vol. 186, 15.02.2017, p. 11-29.

Research output: Contribution to journalArticle

Gazeau, F, Sallon, A, Maugendre, L, Louis, J, Dellisanti, W, Gaubert, M, Lejeune, P, Gobert, S, Borges, AV, Harlay, J, Champenois, W, Alliouane, S, Taillandier, V, Louis, F, Obolensky, G, Grisoni, JM & Guieu, C 2017, 'First mesocosm experiments to study the impacts of ocean acidification on plankton communities in the NW Mediterranean Sea (MedSeA project)', Estuarine, Coastal and Shelf Science, vol. 186, pp. 11-29. https://doi.org/10.1016/j.ecss.2016.05.014
Gazeau, F. ; Sallon, A. ; Maugendre, L. ; Louis, J. ; Dellisanti, W. ; Gaubert, M. ; Lejeune, P. ; Gobert, S. ; Borges, A. V. ; Harlay, J. ; Champenois, W. ; Alliouane, S. ; Taillandier, V. ; Louis, F. ; Obolensky, G. ; Grisoni, J. M. ; Guieu, Cecile. / First mesocosm experiments to study the impacts of ocean acidification on plankton communities in the NW Mediterranean Sea (MedSeA project). In: Estuarine, Coastal and Shelf Science. 2017 ; Vol. 186. pp. 11-29.
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abstract = "There is a growing international interest in studying the effects of ocean acidification on plankton communities that play a major role in the global carbon cycle and in the consumption of atmospheric CO2 via the so-called biological pump. Recently, several mesocosm experiments reported on the effect of ocean acidification on marine plankton communities, although the majority were performed in eutrophic conditions or following nutrient addition. The objective of the present study was to perform two mesocosm experiments in the oligo- to meso-trophic Northwestern Mediterranean Sea during two seasons with contrasting environmental conditions: in summer 2012 in the Bay of Calvi (Corsica, France) and in winter 2013 in the Bay of Villefranche (France). This paper describes the objectives of these experiments, the study sites, the experimental set-up and the environmental and experimental conditions during the two experiments. The 20-day experiment in the Bay of Calvi was undoubtedly representative of summer conditions in the Northwestern Mediterranean Sea with low nutrient and chlorophyll a concentrations, warm waters and high surface solar irradiance. In contrast, the winter experiment, which was reduced to 12 days because of bad weather conditions, failed to reproduce the mesotrophic conditions typical of the wintertime in this area. Indeed, a rapid increase in phytoplankton biomass during the acidification phase led to a strong decrease in nitrate concentrations and an unrealistic N and P co-limitation at this period of the year. An overview of the 11 other papers related to this study and published in this special issue is provided.",
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AU - Gazeau, F.

AU - Sallon, A.

AU - Maugendre, L.

AU - Louis, J.

AU - Dellisanti, W.

AU - Gaubert, M.

AU - Lejeune, P.

AU - Gobert, S.

AU - Borges, A. V.

AU - Harlay, J.

AU - Champenois, W.

AU - Alliouane, S.

AU - Taillandier, V.

AU - Louis, F.

AU - Obolensky, G.

AU - Grisoni, J. M.

AU - Guieu, Cecile

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N2 - There is a growing international interest in studying the effects of ocean acidification on plankton communities that play a major role in the global carbon cycle and in the consumption of atmospheric CO2 via the so-called biological pump. Recently, several mesocosm experiments reported on the effect of ocean acidification on marine plankton communities, although the majority were performed in eutrophic conditions or following nutrient addition. The objective of the present study was to perform two mesocosm experiments in the oligo- to meso-trophic Northwestern Mediterranean Sea during two seasons with contrasting environmental conditions: in summer 2012 in the Bay of Calvi (Corsica, France) and in winter 2013 in the Bay of Villefranche (France). This paper describes the objectives of these experiments, the study sites, the experimental set-up and the environmental and experimental conditions during the two experiments. The 20-day experiment in the Bay of Calvi was undoubtedly representative of summer conditions in the Northwestern Mediterranean Sea with low nutrient and chlorophyll a concentrations, warm waters and high surface solar irradiance. In contrast, the winter experiment, which was reduced to 12 days because of bad weather conditions, failed to reproduce the mesotrophic conditions typical of the wintertime in this area. Indeed, a rapid increase in phytoplankton biomass during the acidification phase led to a strong decrease in nitrate concentrations and an unrealistic N and P co-limitation at this period of the year. An overview of the 11 other papers related to this study and published in this special issue is provided.

AB - There is a growing international interest in studying the effects of ocean acidification on plankton communities that play a major role in the global carbon cycle and in the consumption of atmospheric CO2 via the so-called biological pump. Recently, several mesocosm experiments reported on the effect of ocean acidification on marine plankton communities, although the majority were performed in eutrophic conditions or following nutrient addition. The objective of the present study was to perform two mesocosm experiments in the oligo- to meso-trophic Northwestern Mediterranean Sea during two seasons with contrasting environmental conditions: in summer 2012 in the Bay of Calvi (Corsica, France) and in winter 2013 in the Bay of Villefranche (France). This paper describes the objectives of these experiments, the study sites, the experimental set-up and the environmental and experimental conditions during the two experiments. The 20-day experiment in the Bay of Calvi was undoubtedly representative of summer conditions in the Northwestern Mediterranean Sea with low nutrient and chlorophyll a concentrations, warm waters and high surface solar irradiance. In contrast, the winter experiment, which was reduced to 12 days because of bad weather conditions, failed to reproduce the mesotrophic conditions typical of the wintertime in this area. Indeed, a rapid increase in phytoplankton biomass during the acidification phase led to a strong decrease in nitrate concentrations and an unrealistic N and P co-limitation at this period of the year. An overview of the 11 other papers related to this study and published in this special issue is provided.

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