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Zervoudaki, Soultana; Krasakopoulou, Evangelia; Moutsopoulos, T; Protopapa, M; Marro, Sophie; Gazeau, Frédéric (2017): Copepod response to ocean acidification in a low nutrient-low chlorophyll environment in the NW Mediterranean Sea. PANGAEA, https://doi.org/10.1594/PANGAEA.873189, In: Gazeau, Frédéric; Taillandier, Vincent; Alliouane, Samir; Gobert, Sylvie; Giani, Michele; Sallon, Amèlie; Celussi, Mauro; Rees, Andrew; Pitta, Paraskevi; Maugendre, Laure; Guieu, Cecile; Louis, Justine (2012): Stareso MedSeA mesocosm experiment: field and perturbation studies 2012. PANGAEA, https://doi.org/10.1594/PANGAEA.811018

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Abstract:
In order to identify how ocean acidification will influence biological interactions and fluxes among planktonic organisms and across trophic levels, a large-scale mesocosm experiment was performed in the oligotrophic Northwestern Mediterranean Sea in the framework of the European MedSeA project. Nine mesocosms were deployed in the Bay of Calvi (Corsica, France) in summer 2012. Six mesocosms were subjected to different levels of CO2 partial pressures (pCO2; 550, 650, 750, 850, 1000 and 1250 µatm) covering the range of atmospheric pCO2 anticipated for the end of this century depending on future emission scenarios, and the last three mesocosms were unaltered (ambient pCO2 of 450 µatm). During this 21-day experiment, we monitored copepod egg and naupliar stocks, estimated copepod (Acartia clausi and Centropages typicus) feeding rates and determined the abundance and taxonomic composition of the mesozooplankton community at the start and at the completion of the experiment. This community was clearly dominated by copepods and its final composition slightly varied between mesocosms most likely due to natural and experimental variability that cannot be related to CO2 conditions. The abundances of eggs and nauplii as well as feeding rates of A. clausi and C. typicus on diatoms, dinoflagellates and ciliates showed no significant differences among CO2 levels. The above findings suggest that the experimental set-up especially for the specific trophic conditions and the short duration of the experiment did not provide the information on the effect of acidification that was expected. The acidification might have an effect on planktonic communities and even worsen the problems imposed by food limitation, therefore on this short time scale experiment and under the extreme ologotrophic conditions the signal that dominates was the food limitation.
Related to:
Zervoudaki, Soultana; Krasakopoulou, Evangelia; Moutsopoulos, T; Protopapa, M; Marro, Sophie; Gazeau, Frédéric (2017): Copepod response to ocean acidification in a low nutrient-low chlorophyll environment in the NW Mediterranean Sea. Estuarine, Coastal and Shelf Science, 186, 152-162, https://doi.org/10.1016/j.ecss.2016.06.030
Further details:
Gattuso, Jean-Pierre; Epitalon, Jean-Marie; Lavigne, Héloise; Orr, James C; Gentili, Bernard; Proye, Aurélien; Soetaert, Karline; Rae, James (2016): seacarb: seawater carbonate chemistry with R. R package version 3.1. https://cran.r-project.org/package=seacarb
Coverage:
Latitude: 42.580000 * Longitude: 8.726000
Date/Time Start: 2015-06-25T00:00:00 * Date/Time End: 2015-07-14T00:00:00
Event(s):
Stareso-2012-IWS-perturbation * Latitude: 42.580000 * Longitude: 8.726000 * Date/Time Start: 2012-06-20T00:00:00 * Date/Time End: 2012-07-14T00:00:00 * Location: Bay of Calvi, Mediterranean Sea * Device: Mesocosm experiment (MESO)
Comment:
In order to allow full comparability with other ocean acidification data sets, the R package seacarb (Gattuso et al, 2016) was used to compute a complete and consistent set of carbonate system variables, as described by Nisumaa et al. (2010). In this dataset the original values were archived in addition with the recalculated parameters (see related PI). The date of carbonate chemistry calculation is 2017-03-02.
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethodComment
1FigureFigZervoudaki, Soultana
2IdentificationIDZervoudaki, Soultana
3DATE/TIMEDate/TimeZervoudaki, SoultanaGeocode
4Day of experimentDOEdayZervoudaki, Soultana
5Chlorophyll aChl aµg/lZervoudaki, Soultana
6DinoflagellatesDinofl#/lZervoudaki, Soultana
7DiatomsDiatoms#/lZervoudaki, Soultana
8CiliatesCiliates#/lZervoudaki, Soultana
9ZooplanktonZoopl#/m3Zervoudaki, Soultana
10CopepodaCopepoda#/m3Zervoudaki, Soultana
11PercentagePerc%Zervoudaki, SoultanaCopepods
12PercentagePerc%Zervoudaki, SoultanaGastropoda lar
13PercentagePerc%Zervoudaki, SoultanaMedusae
14PercentagePerc%Zervoudaki, SoultanaLamellibr larv
15Abundance per volumeAbund v#/m3Zervoudaki, SoultanaClausocalanus juv.
16Abundance per volumeAbund v#/m3Zervoudaki, SoultanaOithona juv.
17Abundance per volumeAbund v#/m3Zervoudaki, SoultanaParacalanus juv.
18Abundance per volumeAbund v#/m3Zervoudaki, SoultanaMicrosetella spp.
19Abundance per volumeAbund v#/m3Zervoudaki, SoultanaA.clausi
20Abundance per volumeAbund v#/m3Zervoudaki, SoultanaOncaea spp
21Abundance per volumeAbund v#/m3Zervoudaki, SoultanaCentropages hamatus
22Abundance per volumeAbund v#/m3Zervoudaki, SoultanaNauplii
23EggsEggs#/lZervoudaki, Soultana
24NaupliiNauplii#/lZervoudaki, Soultana
25SpeciesSpeciesZervoudaki, Soultana
26Registration number of speciesReg spec noZervoudaki, Soultana
27Uniform resource locator/link to referenceURL refZervoudaki, SoultanaWoRMS Aphia ID
28Biomass as carbon per volumeBiom Cµg/lZervoudaki, SoultanaInitial carbon biomass of ciliates
29Biomass as carbon, standard errorBiom C std e±Zervoudaki, SoultanaInitial carbon biomass of ciliates
30Carbon biomassC biom%Zervoudaki, Soultanacopepods daily rations, ciliates
31Biomass as carbon, standard errorBiom C std e±Zervoudaki, Soultanacopepods daily rations, ciliates
32Biomass as carbon per volumeBiom Cµg/lZervoudaki, SoultanaInitial carbon biomass of diatoms
33Biomass as carbon, standard errorBiom C std e±Zervoudaki, SoultanaInitial carbon biomass of diatoms
34Carbon biomassC biom%Zervoudaki, Soultanacopepods daily rations, diatoms
35Biomass as carbon, standard errorBiom C std e±Zervoudaki, Soultanacopepods daily rations, diatoms
36Biomass as carbon per volumeBiom Cµg/lZervoudaki, SoultanaInitial carbon biomass of dinoflagellates
37Biomass as carbon, standard errorBiom C std e±Zervoudaki, SoultanaInitial carbon biomass of dinoflagellates
38Carbon biomassC biom%Zervoudaki, Soultanacopepods daily rations, dinoflagellates
39Biomass as carbon, standard errorBiom C std e±Zervoudaki, Soultanacopepods daily rations, dinoflagellates
40ExperimentExpZervoudaki, Soultana
41DiatomsDiatoms#/lZervoudaki, Soultanainitial
42Clearance rateCRml/#/dayZervoudaki, SoultanaDiatoms
43Clearance rate, standard deviationCR std dev±Zervoudaki, SoultanaDiatoms
44DinoflagellatesDinofl#/lZervoudaki, Soultanainitial
45Clearance rateCRml/#/dayZervoudaki, SoultanaDinoflagellates
46Clearance rate, standard deviationCR std dev±Zervoudaki, SoultanaDinoflagellates
47CiliatesCiliates#/lZervoudaki, Soultanainitial
48Clearance rateCRml/#/dayZervoudaki, SoultanaCiliates
49Clearance rate, standard deviationCR std dev±Zervoudaki, SoultanaCiliates
50Temperature, waterTemp°CZervoudaki, Soultana
51SalinitySalZervoudaki, Soultana
52Carbon, inorganic, dissolvedDICµmol/kgAlliouane, Samir
53Alkalinity, totalATµmol/kgAlliouane, Samir
54Phosphate[PO4]3-µmol/lGobert, Sylvie
55SilicateSi(OH)4µmol/lGobert, Sylvie
56Carbonate system computation flagCSC flagYang, YanCalculated using seacarb after Nisumaa et al. (2010)
57pHpHYang, YanCalculated using seacarb after Nisumaa et al. (2010)total scale
58Carbon dioxideCO2µmol/kgYang, YanCalculated using seacarb after Nisumaa et al. (2010)
59Fugacity of carbon dioxide (water) at sea surface temperature (wet air)fCO2water_SST_wetµatmYang, YanCalculated using seacarb after Nisumaa et al. (2010)
60Partial pressure of carbon dioxide (water) at sea surface temperature (wet air)pCO2water_SST_wetµatmYang, YanCalculated using seacarb after Nisumaa et al. (2010)
61Bicarbonate ion[HCO3]-µmol/kgYang, YanCalculated using seacarb after Nisumaa et al. (2010)
62Carbonate ion[CO3]2-µmol/kgYang, YanCalculated using seacarb after Nisumaa et al. (2010)
63Aragonite saturation stateOmega ArgYang, YanCalculated using seacarb after Nisumaa et al. (2010)
64Calcite saturation stateOmega CalYang, YanCalculated using seacarb after Nisumaa et al. (2010)
Size:
8693 data points

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