Maugendre, Laure; Gattuso, Jean-Pierre; Louis, Justine; Anna, de Kluijver; Marro, Sophie; Soetaert, Karline; Gazeau, Frédéric; Dufour, Aurélie (2014): Villefranche sur Mer: multistressors experiment March 2012. PANGAEA, https://doi.org/10.1594/PANGAEA.834159, Supplement to: Maugendre, Laure; Gattuso, Jean-Pierre; Louis, Justine; de Kluijver, Anna; Marro, Sophie; Soetaert, Karline; Gazeau, Frédéric (2014): Effect of ocean warming and acidification on a plankton community in the NW Mediterranean Sea. ICES Journal of Marine Science, https://doi.org/10.1093/icesjms/fsu161
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Abstract:
The effect of ocean warming and acidification was investigated on a natural plankton assemblage from an oligotrophic area, the bay of Villefranche (NW Mediterranean Sea). The assemblage was sampled in March 2012 and exposed to the following four treatments for 12 days: control ( 360 µatm, 14°C), elevated pCO2 ( 610 µatm, 14°C), elevated temperature ( 410 µatm, 17°C), and elevated pCO2 and temperature ( 690 µatm, 17°C). Nutrients were already depleted at the beginning of the experiment and the concentrations of chlorophyll a (chl a), heterotrophic prokaryotes and viruses decreased, under all treatments, throughout the experiment. There were no statistically significant effects of ocean warming and acidification, whether in isolation or combined, on the concentrations of nutrients, particulate organic matter, chl a and most of the photosynthetic pigments. Furthermore, 13C labelling showed that the carbon transfer rates from 13C-sodium bicarbonate into particulate organic carbon were not affected by seawater warming nor acidification. Rates of gross primary production followed the general decreasing trend of chl a concentrations and were significantly higher under elevated temperature, an effect exacerbated when combined to elevated pCO2 level. In contrast to the other algal groups, the picophytoplankton population (cyanobacteria, mostly Synechococcus) increased throughout the experiment and was more abundant in the warmer treatment though to a lesser extent when combined to high pCO2 level. These results suggest that under nutrient-depleted conditions in the Mediterranean Sea, ocean acidification has a very limited impact on the plankton community and that small species will benefit from warming with a potential decrease of the export and energy transfer to higher trophic levels.
Keyword(s):
Further details:
Lavigne, Héloise; Epitalon, Jean-Marie; Gattuso, Jean-Pierre (2014): seacarb: seawater carbonate chemistry with R. R package version 3.0. https://cran.r-project.org/package=seacarb
Project(s):
Coverage:
Latitude: 43.400000 * Longitude: 7.180000
Date/Time Start: 2012-03-14T08:00:00 * Date/Time End: 2012-03-24T06:00:00
Event(s):
Comment:
In order to allow full comparability with other ocean acidification data sets, the R package seacarb (Lavigne et al, 2014) 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 2014-07-22.
Parameter(s):
# | Name | Short Name | Unit | Principal Investigator | Method | Comment |
---|---|---|---|---|---|---|
1 | Other event | Other event | Maugendre, Laure | |||
2 | Treatment | Treat | Maugendre, Laure | C = control; OW = Ocean warming; OA=Ocean acidfication and G = greenhouse | ||
3 | Day of experiment | DOE | day | Maugendre, Laure | ||
4 | DATE/TIME | Date/Time | Geocode | |||
5 | Bottle number | Bottle | Maugendre, Laure | |||
6 | Temperature, water | Temp | °C | Maugendre, Laure | ||
7 | Oxygen | O2 | µmol/l | Maugendre, Laure | Titration, Winkler | |
8 | Irradiance | E | µmol/m2/s | Maugendre, Laure | ||
9 | Salinity | Sal | Maugendre, Laure | |||
10 | Carbon, inorganic, dissolved | DIC | µmol/kg | Maugendre, Laure | Coulometric titration | |
11 | Alkalinity, total | AT | µmol/kg | Maugendre, Laure | Potentiometric titration | |
12 | Carbonate system computation flag | CSC flag | Maugendre, Laure | Calculated using seacarb | ||
13 | pH | pH | Maugendre, Laure | Calculated using seacarb | total scale | |
14 | Partial pressure of carbon dioxide (water) at sea surface temperature (wet air) | pCO2water_SST_wet | µatm | Maugendre, Laure | Calculated using seacarb | |
15 | Bicarbonate ion | [HCO3]- | µmol/kg | Maugendre, Laure | Calculated using seacarb | |
16 | Carbonate ion | [CO3]2- | µmol/kg | Maugendre, Laure | Calculated using seacarb | |
17 | Aragonite saturation state | Omega Arg | Maugendre, Laure | Calculated using seacarb | ||
18 | Calcite saturation state | Omega Cal | Maugendre, Laure | Calculated using seacarb | ||
19 | Carbon, organic, dissolved | DOC | µmol/l | Maugendre, Laure | ||
20 | Nitrogen, inorganic, dissolved | DIN | µmol/l | Louis, Justine | Spectrophotometric | |
21 | Phosphorus, inorganic, dissolved | DIP | µmol/l | Louis, Justine | Spectrophotometric | |
22 | Silicate | Si(OH)4 | µmol/l | Dufour, Aurélie | Spectrophotometric | |
23 | Nitrogen, organic, particulate | PON | µmol/l | Maugendre, Laure | Element analyser CHN | |
24 | Carbon, organic, particulate | POC | µmol/l | Maugendre, Laure | Element analyser CHN | |
25 | Chlorophyll c3 | Chl c3 | µg/l | Maugendre, Laure | High Performance Liquid Chromatography (HPLC) | |
26 | Chlorophyll c1+c2 | Chl c1+c2 | µg/l | Maugendre, Laure | High Performance Liquid Chromatography (HPLC) | |
27 | Peridinin | Perid | µg/l | Maugendre, Laure | High Performance Liquid Chromatography (HPLC) | |
28 | 19-Butanoyloxyfucoxanthin | But-fuco | µg/l | Maugendre, Laure | High Performance Liquid Chromatography (HPLC) | |
29 | Fucoxanthin | Fuco | µg/l | Maugendre, Laure | High Performance Liquid Chromatography (HPLC) | |
30 | Neoxanthin | Neo | µg/l | Maugendre, Laure | High Performance Liquid Chromatography (HPLC) | |
31 | Prasinoxanthin | Pras | µg/l | Maugendre, Laure | High Performance Liquid Chromatography (HPLC) | |
32 | Violaxanthin | Viola | µg/l | Maugendre, Laure | High Performance Liquid Chromatography (HPLC) | |
33 | 19-Hexanoyloxyfucoxanthin | Hex-fuco | µg/l | Maugendre, Laure | High Performance Liquid Chromatography (HPLC) | |
34 | Diadinoxanthin | Diadino | µg/l | Maugendre, Laure | High Performance Liquid Chromatography (HPLC) | |
35 | Alloxanthin | Allo | µg/l | Maugendre, Laure | High Performance Liquid Chromatography (HPLC) | |
36 | Diatoxanthin | Diato | µg/l | Maugendre, Laure | High Performance Liquid Chromatography (HPLC) | |
37 | Zeaxanthin | Zea | µg/l | Maugendre, Laure | High Performance Liquid Chromatography (HPLC) | |
38 | Chlorophyll b | Chl b | µg/l | Maugendre, Laure | High Performance Liquid Chromatography (HPLC) | |
39 | Chlorophyll a | Chl a | µg/l | Maugendre, Laure | High Performance Liquid Chromatography (HPLC) | |
40 | Phaeophytin a | Phaeophytin a | µg/l | Maugendre, Laure | High Performance Liquid Chromatography (HPLC) | |
41 | Carotene | Carotene | µg/l | Maugendre, Laure | High Performance Liquid Chromatography (HPLC) | |
42 | Virus | Virus | #/ml | Marro, Sophie | Flow cytometry | |
43 | Virus, low DNA fluorescence | Virus LDNA | #/ml | Marro, Sophie | Flow cytometry | |
44 | Virus, medium DNA fluorescence | Virus HDNA | #/ml | Marro, Sophie | Flow cytometry | |
45 | Virus, high DNA fluorescence | Virus HDNA | #/ml | Marro, Sophie | Flow cytometry | |
46 | Synechococcus | Synechococcus | #/ml | Marro, Sophie | Flow cytometry | |
47 | Picoeukaryotes, autotrophic | PEuk auto | #/ml | Marro, Sophie | Flow cytometry | |
48 | Bacteria | Bact | #/ml | Marro, Sophie | Flow cytometry | |
49 | Prochlorococcus | Prochlorococcus | #/ml | Marro, Sophie | Flow cytometry | |
50 | Nanoprokaryotes | Nprok | #/ml | Marro, Sophie | Flow cytometry | |
51 | Net community production of oxygen | NCP O2 | µmol/l/day | Maugendre, Laure | ||
52 | Net community production of oxygen, standard error | NCP std e | ± | Maugendre, Laure | ||
53 | Respiration rate, oxygen | Resp O2 | µmol/l/day | Maugendre, Laure | ||
54 | Respiration rate, oxygen, standard error | Resp O2 std e | ± | Maugendre, Laure | ||
55 | Gross community production of oxygen | GCPO | µmol/l/day | Maugendre, Laure | ||
56 | Gross community production of oxygen, standard error | GCPO std e | ± | Maugendre, Laure | ||
57 | Gross primary production, 18O | GPP 18O | µmol/l/day | Maugendre, Laure | ||
58 | Net community production of carbon dioxide | NCP CO2 | µmol/l/day | Maugendre, Laure | ||
59 | δ13C, dissolved inorganic carbon | δ13C DIC | ‰ PDB | Maugendre, Laure | ||
60 | Δδ13C | Δδ13C | ‰ PDB | Maugendre, Laure | DIC | |
61 | δ13C, particulate organic carbon | δ13C POC | ‰ PDB | Maugendre, Laure | ||
62 | Δδ13C | Δδ13C | ‰ PDB | Maugendre, Laure | POC | |
63 | Carbonate system computation flag | CSC flag | Yang, Yan | Calculated using seacarb after Nisumaa et al. (2010) | ||
64 | pH | pH | Yang, Yan | Calculated using seacarb after Nisumaa et al. (2010) | total scale | |
65 | Carbon dioxide | CO2 | µmol/kg | Yang, Yan | Calculated using seacarb after Nisumaa et al. (2010) | |
66 | Partial pressure of carbon dioxide (water) at sea surface temperature (wet air) | pCO2water_SST_wet | µatm | Yang, Yan | Calculated using seacarb after Nisumaa et al. (2010) | |
67 | Fugacity of carbon dioxide (water) at sea surface temperature (wet air) | fCO2water_SST_wet | µatm | Yang, Yan | Calculated using seacarb after Nisumaa et al. (2010) | |
68 | Bicarbonate ion | [HCO3]- | µmol/kg | Yang, Yan | Calculated using seacarb after Nisumaa et al. (2010) | |
69 | Carbonate ion | [CO3]2- | µmol/kg | Yang, Yan | Calculated using seacarb after Nisumaa et al. (2010) | |
70 | Aragonite saturation state | Omega Arg | Yang, Yan | Calculated using seacarb after Nisumaa et al. (2010) | ||
71 | Calcite saturation state | Omega Cal | Yang, Yan | Calculated using seacarb after Nisumaa et al. (2010) |
Size:
3443 data points
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