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Sui, Yanming; Hu, Menghong; Shang, Yueyong; Wu, FangLi; Huang, Xizhi; Dupont, Sam; Storch, Daniela; Pörtner, Hans-Otto; Li, Jiale; Lu, Weiqun; Wang, Youji (2017): Antioxidant response of the hard shelled mussel Mytilus coruscus exposed to reduced pH and oxygen concentration. PANGAEA, https://doi.org/10.1594/PANGAEA.873540, Supplement to: Sui, Y et al. (2017): Antioxidant response of the hard shelled mussel Mytilus coruscus exposed to reduced pH and oxygen concentration. Ecotoxicology and Environmental Safety, 137, 94-102, https://doi.org/10.1016/j.ecoenv.2016.11.023

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Abstract:
Ocean acidification (OA) and hypoxic events are increasing worldwide problems, their interactive effects have not been well clarified, although their co-occurrence is prevalent. The East China Sea (the Yangtze River estuary area) suffers from not only coastal hypoxia but also pH fluctuation, representing an ideal study site to explore the combined effect of OA and hypoxia on marine bivalves. We experimentally evaluated the antioxidant response of the mussel Mytilus coruscus exposed to three pH levels (8.1, 7.7 and 7.3) at two dissolved oxygen (DO) levels (2.0 mg/L and 6.0 mg/L) for 72h. Activities of superoxide dismutase, catalase, glutathione peroxidase, acid phosphatase, and alkaline phosphatase and levels of malondialdehyde were measured in gills and hemolymph. All enzymatic activities in hemolymph and gills followed a similar pattern throughout the experiment duration. Generally, low DO showed greater effects on enzyme activities than elevated CO2. Significant interactions between DO, pH and time were only observed at superoxide dismutase and catalase in both tissues. PCA revealed positive relationships between most enzyme activities in both gills and hemolymph with the exception of alkaline phosphatase activity and the level of malondialdehyde in the hemolymph. Overall, our results suggested that decreased pH and low DO induced similar antioxidant responses in the hard shelled mussel, and showed an additive effect on most enzyme activities. The evaluation of multiple environmental stressors, a more realistic scenario than single ones, is crucial to predict the effect of future global changes on coastal species and our results supply some insights on the potential combined effects of reduced pH and DO on marine bivalves.
Keyword(s):
Animalia; Benthic animals; Benthos; Brackish waters; Containers and aquaria (20- 1000 L or < 1 m**2); Laboratory experiment; Mollusca; Mytilus coruscus; North Pacific; Other metabolic rates; Oxygen; Single species; Temperate
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: 30.550260 * Longitude: 121.833270
Date/Time Start: 2015-04-01T00:00:00 * Date/Time End: 2015-04-30T00:00:00
Event(s):
Shengsi_island_OA * Latitude: 30.550260 * Longitude: 121.833270 * Date/Time Start: 2015-04-01T00:00:00 * Date/Time End: 2015-04-30T00:00:00 * Device: Experiment (EXP)
Comment:
In order to allow full comparability with other ocean acidification data sets, the R package seacarb (Gattuso et al, 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 2017-03-15.
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethodComment
1TypeTypeSui, Yanmingstudy
2SpeciesSpeciesSui, Yanming
3Registration number of speciesReg spec noSui, Yanming
4Uniform resource locator/link to referenceURL refSui, YanmingWoRMS Aphia ID
5SiteSiteSui, Yanming
6Time in hoursTimehSui, Yanming
7TreatmentTreatSui, Yanming
8Superoxide dismutase activity, unit per protein massSODU/mgSui, Yanming
9Catalase, unit per protein massCATU/mgSui, Yanming
10Glutathione peroxidase activity, unit per protein massGPXU/mgSui, Yanming
11Acid phosphatase activity, unit per protein massACPU/mgSui, Yanming
12Alkaline phosphatase activity, unit per protein massALPU/mgSui, Yanming
13OxygenO2µmol/lSui, Yanming
14Oxygen, standard deviationO2 std dev±Sui, Yanming
15Temperature, waterTemp°CSui, Yanming
16Temperature, water, standard deviationTemp std dev±Sui, Yanming
17SalinitySalSui, Yanming
18Salinity, standard deviationSal std dev±Sui, Yanming
19pHpHSui, YanmingPotentiometricNBS scale
20pH, standard deviationpH std dev±Sui, YanmingPotentiometricNBS scale
21Alkalinity, totalATµmol/kgSui, Yanming
22Alkalinity, total, standard deviationAT std dev±Sui, Yanming
23Carbon, inorganic, dissolvedDICµmol/kgSui, YanmingPotentiometric titration
24Carbon, inorganic, dissolved, standard deviationDIC std dev±Sui, YanmingPotentiometric titration
25Partial pressure of carbon dioxide (water) at sea surface temperature (wet air)pCO2water_SST_wetµatmSui, YanmingCalculated using CO2SYS
26Partial pressure of carbon dioxide, standard deviationpCO2 std dev±Sui, YanmingCalculated using CO2SYS
27Calcite saturation stateOmega CalSui, YanmingCalculated using CO2SYS
28Calcite saturation state, standard deviationOmega Cal std dev±Sui, YanmingCalculated using CO2SYS
29Aragonite saturation stateOmega ArgSui, YanmingCalculated using CO2SYS
30Aragonite saturation state, standard deviationOmega Arg std dev±Sui, YanmingCalculated using CO2SYS
31Carbonate system computation flagCSC flagYang, YanCalculated using seacarb after Nisumaa et al. (2010)
32pHpHYang, YanCalculated using seacarb after Nisumaa et al. (2010)total scale
33Carbon dioxideCO2µmol/kgYang, YanCalculated using seacarb after Nisumaa et al. (2010)
34Fugacity of carbon dioxide (water) at sea surface temperature (wet air)fCO2water_SST_wetµatmYang, YanCalculated using seacarb after Nisumaa et al. (2010)
35Partial pressure of carbon dioxide (water) at sea surface temperature (wet air)pCO2water_SST_wetµatmYang, YanCalculated using seacarb after Nisumaa et al. (2010)
36Bicarbonate ion[HCO3]-µmol/kgYang, YanCalculated using seacarb after Nisumaa et al. (2010)
37Carbonate ion[CO3]2-µmol/kgYang, YanCalculated using seacarb after Nisumaa et al. (2010)
38Carbon, inorganic, dissolvedDICµmol/kgYang, YanCalculated using seacarb after Nisumaa et al. (2010)
39Aragonite saturation stateOmega ArgYang, YanCalculated using seacarb after Nisumaa et al. (2010)
40Calcite saturation stateOmega CalYang, YanCalculated using seacarb after Nisumaa et al. (2010)
Size:
1920 data points

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