Not logged in
PANGAEA.
Data Publisher for Earth & Environmental Science

Gazeau, Frédéric; Alliouane, Samir; Bock, Christian; Bramanti, Lorenzo; López Correa, Matthias; Gentile, Miriam; Hirse, Timo; Pörtner, Hans-Otto; Ziveri, Patrizia (2014): Impact of ocean acidification and warming on the Mediterranean mussel (Mytilus galloprovincialis). PANGAEA, https://doi.org/10.1594/PANGAEA.843969, Supplement to: Gazeau, F et al. (2014): Impact of ocean acidification and warming on the Mediterranean mussel (Mytilus galloprovincialis). Frontiers in Marine Science, 1, 62, https://doi.org/10.3389/fmars.2014.00062

Always quote above citation when using data! You can download the citation in several formats below.

RIS CitationBibTeX CitationShow MapGoogle Earth

Abstract:
In order to assess the effects of ocean acidification and warming on the Mediterranean mussel (Mytilus galloprovincialis), specimens were reared in aquarium tanks and exposed to elevated conditions of temperature (+3°C) and acidity (-0.3 pH units) for a period of 10 months. The whole system comprised a factorial experimental design with 4 treatments (3 aquaria per treatment): control, lowered pH, elevated temperature, and lowered pH/elevated temperature. Mortality was estimated on a weekly basis and every 2 months, various biometrical parameters and physiological processes were measured: somatic and shell growth, metabolic rates and body fluid acid-base parameters. Mussels were highly sensitive to warming, with 100% mortality observed under elevated temperature at the end of our experiment in October. Mortality rates increased drastically in summer, when water temperature exceeded 25°C. In contrast, our results suggest that survival of this species will not be affected by a pH decrease of 0.3 in the Mediterranean Sea. Somatic and shell growth did not appear very sensitive to ocean acidification and warming during most of the experiment, but were reduced, after summer, in the lowered pH treatment. This was consistent with measured shell net dissolution and observed loss of periostracum, as well as uncompensated extracellular acidosis in the lowered pH treatment indicating a progressive insufficiency in acid-base regulation capacity. However, based on the present dataset, we cannot elucidate if these decreases in growth and regulation capacities after summer are a consequence of lower pH levels during that period or a consequence of a combined effect of acidification and warming. To summarize, while ocean acidification will potentially contribute to lower growth rates, especially in summer when mussels are exposed to sub-optimal conditions, ocean warming will likely pose more serious threats to Mediterranean mussels in this region in the coming decades.
Keyword(s):
Acid-base regulation; Animalia; Benthic animals; Benthos; Calcification/Dissolution; Coast and continental shelf; Containers and aquaria (20- 1000 L or < 1 m**2); Growth/Morphology; Laboratory experiment; Mediterranean Sea; Mollusca; Mortality/Survival; Mytilus galloprovincialis; Other metabolic rates; Respiration; Single species; Temperate; Temperature
Further details:
Gattuso, Jean-Pierre; Epitalon, Jean-Marie; Lavigne, Héloise (2015): seacarb: seawater carbonate chemistry with R. R package version 3.0.6. https://cran.r-project.org/package=seacarb
Coverage:
Latitude: 40.599720 * Longitude: 0.689170
Date/Time Start: 2011-11-01T00:00:00 * Date/Time End: 2011-11-30T00:00:00
Event(s):
Delta_del_Ebro * Latitude: 40.599720 * Longitude: 0.689170 * Date/Time Start: 2011-11-01T00:00:00 * Date/Time End: 2011-11-30T00:00:00 * Device: Experiment (EXP)
Comment:
In order to allow full comparability with other ocean acidification data sets, the R package seacarb (Gattuso et al, 2015) 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 2015-03-11.
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethodComment
1SpeciesSpeciesGazeau, Frédéric
2FigureFigGazeau, Frédéric
3TreatmentTreatGazeau, Frédéric
4DateDateGazeau, Frédéric
5MortalityMortality%Gazeau, Frédériccumulated
6Mortality, standard errorMortality std e±Gazeau, Frédériccumulated
7MassMassgGazeau, Frédéricfresh weight cumulated growth
8Mass, standard errorMass std e±Gazeau, Frédéricfresh weight cumulated growth
9Shell lengthShell lmmGazeau, Frédériccumulated growth
10Shell length, standard errorShell l std e±Gazeau, Frédériccumulated growth
11Shell, massShell mgGazeau, Frédériccumulated growth
12Shell, mass, standard errorShell m std e±Gazeau, Frédériccumulated growth
13Respiration rate, oxygenResp O2µmol/g/hGazeau, Frédéric
14Respiration rate, oxygen, standard errorResp O2 std e±Gazeau, Frédéric
15Ammonia excretionNH3/[NH4]+ excµmol/g/hGazeau, Frédéric
16Ammonia excretion, standard errorNH3/[NH4]+ exc std e±Gazeau, Frédéric
17Net calcification rate of calcium carbonateNC CaCO3µmol/g/hGazeau, Frédéric
18Net calcification rate of calcium carbonate, standard errorNC CaCO3 std e±Gazeau, Frédéric
19Haemolymph, pHpH (ha)Gazeau, Frédéric
20Haemolymph, pH, standard errorpH (ha) std e±Gazeau, Frédéric
21Extrapallial fluid pHpH (epf)Gazeau, Frédéric
22Extrapallial fluid pH, standard errorpH (epf) std e±Gazeau, Frédéric
23Haemolymph, partial pressure of carbon dioxidepCO2 (ha)TorrGazeau, Frédéric
24Haemolymph, partial pressure of carbon dioxide, standard errorpCO2 (ha) std e±Gazeau, Frédéric
25Extrapallial fluid partial pressure of carbon dioxidepCO2 (epf)TorrGazeau, Frédéric
26Extrapallial fluid partial pressure of carbon dioxide, standard errorpCO2 (epf) std e±Gazeau, Frédéric
27Incubation durationInc durweeksGazeau, Frédéric
28DateDateGazeau, Frédéricdate when carbonate chemistry measured
29SalinitySalGazeau, Frédéric
30Salinity, standard deviationSal std dev±Gazeau, Frédéric
31Alkalinity, totalATµmol/kgGazeau, FrédéricPotentiometric titration
32Alkalinity, total, standard deviationAT std dev±Gazeau, FrédéricPotentiometric titration
33pHpHGazeau, FrédéricPotentiometrictotal scale
34pH, standard deviationpH std dev±Gazeau, FrédéricPotentiometrictotal scale
35Temperature, waterTemp°CGazeau, Frédéric
36Temperature, water, standard deviationTemp std dev±Gazeau, Frédéric
37Carbonate system computation flagCSC flagYang, YanCalculated using seacarb after Nisumaa et al. (2010)
38Carbon dioxideCO2µmol/kgYang, YanCalculated using seacarb after Nisumaa et al. (2010)
39Fugacity of carbon dioxide (water) at sea surface temperature (wet air)fCO2water_SST_wetµatmYang, YanCalculated using seacarb after Nisumaa et al. (2010)
40Partial pressure of carbon dioxide (water) at sea surface temperature (wet air)pCO2water_SST_wetµatmYang, YanCalculated using seacarb after Nisumaa et al. (2010)
41Bicarbonate ion[HCO3]-µmol/kgYang, YanCalculated using seacarb after Nisumaa et al. (2010)
42Carbonate ion[CO3]2-µmol/kgYang, YanCalculated using seacarb after Nisumaa et al. (2010)
43Carbon, inorganic, dissolvedDICµmol/kgYang, YanCalculated using seacarb after Nisumaa et al. (2010)
44Aragonite saturation stateOmega ArgYang, YanCalculated using seacarb after Nisumaa et al. (2010)
45Calcite saturation stateOmega CalYang, YanCalculated using seacarb after Nisumaa et al. (2010)
Size:
5472 data points

Download Data

Download dataset as tab-delimited text (use the following character encoding: )

View dataset as HTML (shows only first 2000 rows)