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Iddar, Abdelghani; El Mzibri, Mohammed; Laissaoui, Abdelmourhit; Metian, Marc; Dupont, Sam (2026): Seawater carbonate chemistry and mortality rates, oxidative stress and enzyme activities of blue mussels (Mytilus edulis) [dataset]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.995054 (DOI registration in progress)

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Published: 2026-05-15

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Abstract:
This study aimed to determine whether these short-term fluctuations enable blue mussels (Mytilus edulis) to endure long-term exposure to low pH using biological indicators (mortality rates, oxidative stress and enzyme activities). Mussels were collected from an intertidal zone in the western coast of Morocco and exposed for 6 months to seawater pH ranging from 6.6 to 8.0.
This dataset is included in the OA-ICC data compilation maintained in the framework of the IAEA Ocean Acidification International Coordination Centre (see https://oa-icc.ipsl.fr). Original data were provided by the author of the related paper (see Related to) to the OA-ICC data curator. In order to allow full comparability with other ocean acidification data sets, the R package seacarb (Gattuso et al, 2024) 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 by seacarb is 2026-05-14.
Keyword(s):
Animalia; Benthic animals; Benthos; Coast and continental shelf; Containers and aquaria (20-1000 L or < 1 m**2); Growth/Morphology; Laboratory experiment; Mollusca; Mortality/Survival; Mytilus edulis; North Atlantic; Ocean acidification; Other metabolic rates; Other studied parameter or process; Single species; Temperate
Related to:
Iddar, Abdelghani; El Mzibri, Mohammed; Laissaoui, Abdelmourhit; Metian, Marc; Dupont, Sam (2026): Chronic exposure to low pH negatively impacts blue mussels ( Mytilus edulis ) from an intertidal zone. Marine Biology Research, 22(1-2), 3-17, https://doi.org/10.1080/17451000.2025.2597185
References:
Nisumaa, Anne-Marin; Pesant, Stephane; Bellerby, Richard G J; Delille, Bruno; Middelburg, Jack J; Orr, James C; Riebesell, Ulf; Tyrrell, Toby; Wolf-Gladrow, Dieter A; Gattuso, Jean-Pierre (2010): EPOCA/EUR-OCEANS data compilation on the biological and biogeochemical responses to ocean acidification. Earth System Science Data, 2(2), 167-175, https://doi.org/10.5194/essd-2-167-2010
Yang, Yan; Brockmann, Patrick; Galdino, Carolina; Schindler, Uwe; Gazeau, Frédéric (2024): An update of data compilation on the biological response to ocean acidification and overview of the OA-ICC data portal. Earth System Science Data, 16(8), 3771-3780, https://doi.org/10.5194/essd-16-3771-2024
Yang, Yan; Hansson, L; Gattuso, Jean-Pierre (2016): Data compilation on the biological response to ocean acidification: an update. Earth System Science Data, 8(1), 79-87, https://doi.org/10.5194/essd-8-79-2016
Related code / software:
Gattuso, Jean-Pierre; Epitalon, Jean-Marie; Lavigne, Héloïse; Orr, James; Gentili, Bernard; Hagens, Mathilde; Hofmann, Andreas; Mueller, Jens-Daniel; Proye, Aurélien; Rae, James; Soetaert, Karline (2024): seacarb: seawater carbonate chemistry with R. R package version 3.3.3. https://cran.r-project.org/web/packages/seacarb/index.html
Project(s):
Ocean Acidification International Coordination Centre (OA-ICC)
Coverage:
Latitude: 34.140700 * Longitude: -6.744400
Event(s):
Plage_des_Nations * Latitude: 34.140700 * Longitude: -6.744400 * Method/Device: Experiment (EXP)
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1Type of studyStudy typeIddar, Abdelghani
2Species, unique identificationSpecies UIDIddar, Abdelghani
3Species, unique identification (URI)Species UID (URI)Iddar, Abdelghani
4Species, unique identification (Semantic URI)Species UID (Semantic URI)Iddar, Abdelghani
5TreatmentTreatIddar, Abdelghani
6Day of experimentDOEdayIddar, Abdelghani
7MortalityMortality%Iddar, AbdelghaniCumulative
8IdentificationIDIddar, AbdelghaniMussels
9MonthMonthIddar, Abdelghani
10Shell lengthShell lmmIddar, Abdelghani
11Tissue typeTissue typeIddar, Abdelghani
12IdentificationIDIddar, AbdelghaniAssays
13Malondialdehyde, per protein massMDA/protnmol/mgIddar, Abdelghani
14Thiol concentrationThiolnmol/mgIddar, Abdelghani
15Glyceraldehyde-3-phosphate dehydrogenase activity, unit per protein massGAPDH/protU/mgIddar, Abdelghani
16Succinate dehydrogenase activity, unit per protein massSDH/protU/mgIddar, Abdelghani
17Catalase activity, unit per protein massCAT/protU/mgIddar, Abdelghani
18Superoxide dismutase activity, unit per protein massSOD/protU/mgIddar, Abdelghani
19MonthMonthIddar, Abdelghani
20SalinitySalIddar, Abdelghani
21pH, NBS scalepH NBSIddar, Abdelghani
22pH, standard deviationpH std dev±Iddar, AbdelghaniNBS scale
23Temperature, waterTemp°CIddar, Abdelghani
24Temperature, water, standard deviationTemp std dev±Iddar, Abdelghani
25Oxygen, dissolvedDOmg/lIddar, Abdelghani
26Oxygen, dissolved, standard deviationDO std dev±Iddar, Abdelghani
27Alkalinity, totalATµmol/kgIddar, Abdelghani
28Partial pressure of carbon dioxide (water) at sea surface temperature (wet air)pCO2water_SST_wetµatmIddar, Abdelghani
29Partial pressure of carbon dioxide, standard deviationpCO2 std dev±Iddar, Abdelghani
30Calcite saturation stateOmega CalIddar, Abdelghani
31Calcite saturation state, standard deviationOmega Cal std dev±Iddar, Abdelghani
32Aragonite saturation stateOmega ArgIddar, Abdelghani
33Aragonite saturation state, standard deviationOmega Arg std dev±Iddar, Abdelghani
34Carbonate system computation flagCSC flagYang, YanCalculated using seacarb after Nisumaa et al. (2010)
35pH, total scalepHTYang, YanCalculated using seacarb after Nisumaa et al. (2010)
36Carbon dioxideCO2µmol/kgYang, YanCalculated using seacarb after Nisumaa et al. (2010)
37Fugacity of carbon dioxide (water) at sea surface temperature (wet air)fCO2water_SST_wetµatmYang, YanCalculated using seacarb after Nisumaa et al. (2010)
38Partial pressure of carbon dioxide (water) at sea surface temperature (wet air)pCO2water_SST_wetµatmYang, YanCalculated using seacarb after Nisumaa et al. (2010)
39Bicarbonate ion[HCO3]-µmol/kgYang, YanCalculated using seacarb after Nisumaa et al. (2010)
40Carbonate ion[CO3]2-µmol/kgYang, YanCalculated using seacarb after Nisumaa et al. (2010)
41Carbon, inorganic, dissolvedDICµmol/kgYang, YanCalculated using seacarb after Nisumaa et al. (2010)
42Aragonite saturation stateOmega ArgYang, YanCalculated using seacarb after Nisumaa et al. (2010)
43Calcite saturation stateOmega CalYang, YanCalculated using seacarb after Nisumaa et al. (2010)
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
20371 data points

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