Rump, Marco; Lannig, Gisela; Bock, Christian; Benthien, Albert; Pogoda, Bernadette; Antoni, Dominik; Gerdts, Gunnar (2026): Carbonate chemistry parameters calculated from measured pH, total alkalinity, salinity and temperature in the exposure mesocosms of a chronic Ostrea edulis alkalinity-enhancement exposure experiment [dataset]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.996220 (DOI registration in progress), In: Rump, M et al. (2026): Seawater carbonate chemistry, mortality, tissue trace metal and metabolomic data from a chronic ocean alkalinity enhancement exposure experiment with the European flat oyster Ostrea edulis [dataset bundled publication]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.996264 (DOI registration in progress)
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Published: 2026-07-29
Abstract:
This dataset contains calculated carbonate chemistry parameters, including the concentrations of dissolved CO2, HCO3-, CO32- and dissolved inorganic carbon, the fugacity and partial pressure of CO2 and the saturation states of aragonite (Ωarag) and calcite (Ωcalc), for the exposure mesocosms. Values were calculated from pH, total alkalinity, salinity and temperature measured between 8 May and 10 July 2024, using the seacarb package (Orr et al., 2018) in R (V. 4.3.2). Measured pH values, which refer to the NBS scale, were first converted to the total scale using the total proton activity coefficient fH of Takahashi et al. (1982), lowering pH by 0.12 to 0.13 units across the measured salinity and temperature range. Calculations used the carbonic acid dissociation constants of Lueker et al. (2000), the bisulfate dissociation constant of Dickson (1990), the hydrogen fluoride constant of Perez & Fraga (1987), total boron after Uppström (1974) and the aragonite and calcite solubility products of Mucci (1983), all evaluated at in situ temperature and salinity. The conversion from the NBS to the total scale carries a residual uncertainty of about 0.01 to 0.02 pH units, because the liquid junction potential between the dilute calibration buffers and seawater is not fully captured by fH. This propagates to an uncertainty of roughly 5 to 15 % in calculated pCO2 and a correspondingly smaller uncertainty in the saturation states.
Related to:
Rump, Marco; et al. (submitted): Ecotoxicological impacts of Ocean Alkalinity Enhancement on the European flat oyster Ostrea edulis: Insights from tissue metabolomics and metal analysis.
Rump, Marco; Lannig, Gisela; Bock, Christian; Benthien, Albert; Pogoda, Bernadette; Antoni, Dominik; Gerdts, Gunnar (2026): Carbonate chemistry parameters calculated from measured pH, total alkalinity, salinity and temperature in the alkalization mesocosms of a chronic Ostrea edulis alkalinity-enhancement exposure experiment [dataset]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.996219
Rump, Marco; Lannig, Gisela; Bock, Christian; Benthien, Albert; Pogoda, Bernadette; Antoni, Dominik; Gerdts, Gunnar (2026): Concentrations of 27 polar metabolites in gill and mantle tissue of Ostrea edulis measured by ¹H-NMR spectroscopy during a chronic alkalinity-enhancement exposure experiment [dataset]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.996222
Rump, Marco; Lannig, Gisela; Bock, Christian; Benthien, Albert; Pogoda, Bernadette; Antoni, Dominik; Gerdts, Gunnar (2026): Glycogen concentration in the labial palps of Ostrea edulis during a chronic alkalinity-enhancement exposure experiment [dataset]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.996218
Rump, Marco; Lannig, Gisela; Bock, Christian; Benthien, Albert; Pogoda, Bernadette; Antoni, Dominik; Gerdts, Gunnar (2026): Oyster mortality and physicochemical parameters in the exposure mesocosms of a chronic Ostrea edulis alkalinity-enhancement exposure experiment [dataset]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.996216
Rump, Marco; Lannig, Gisela; Bock, Christian; Benthien, Albert; Pogoda, Bernadette; Antoni, Dominik; Gerdts, Gunnar (2026): Tissue-accumulated nickel, chromium and cobalt concentrations in Ostrea edulis measured by ICP-OES at the end of a chronic alkalinity-enhancement exposure experiment [dataset]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.996221
Rump, Marco; Lannig, Gisela; Bock, Christian; Benthien, Albert; Pogoda, Bernadette; Antoni, Dominik; Gerdts, Gunnar (2026): Total alkalinity and pH during a short-term feeding experiment testing the contribution of shellfish diet (Reed Mariculture SD1800) to seawater alkalinity [dataset]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.996217
Rump, Marco; Lannig, Gisela; Bock, Christian; Benthien, Albert; Pogoda, Bernadette; Antoni, Dominik; Gerdts, Gunnar (2026): Total alkalinity and pH in the alkalization mesocosms of a chronic Ostrea edulis alkalinity-enhancement exposure experiment [dataset]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.996214
Rump, Marco; Lannig, Gisela; Bock, Christian; Benthien, Albert; Pogoda, Bernadette; Antoni, Dominik; Gerdts, Gunnar (2026): Total alkalinity and pH in the exposure mesocosms of a chronic Ostrea edulis alkalinity-enhancement exposure experiment [dataset]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.996215
Funding:
Coverage:
Latitude: 54.180327 * Longitude: 7.888944
Date/Time Start: 2024-04-17T00:00:00 * Date/Time End: 2025-03-12T00:00:00
Event(s):
ChronicOystersOAE_2024 * Latitude Start: 54.180327 * Longitude Start: 7.888944 * Latitude End: 54.180327 * Longitude End: 7.888944 * Date/Time Start: 2024-04-17T00:00:00 * Date/Time End: 2025-03-12T00:00:00 * Location Start: Helgoland, Germany * Location End: Helgoland, Germany * Method/Device: Mesocosm experiment (MESO)
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Event label | Event | Rump, Marco | |||
| 2 | Type of study | Study type | Rump, Marco | |||
| 3 | Incubation type | Inc type | Rump, Marco | |||
| 4 | Experiment day | Exp day | day | Rump, Marco | ||
| 5 | Sampling date/time, experiment | Date/time sampling exp | Rump, Marco | |||
| 6 | Treatment | Treat | Rump, Marco | |||
| 7 | Salinity | Sal | Rump, Marco | |||
| 8 | Temperature, water | Temp | °C | Rump, Marco | ||
| 9 | pH, NBS scale | pH NBS | Rump, Marco | |||
| 10 | Hydrogen ion, activity coefficient | H+ activity coef | Rump, Marco | |||
| 11 | pH, total scale | pHT | Rump, Marco | |||
| 12 | Alkalinity, total | AT | µmol/kg | Rump, Marco | ||
| 13 | pH | pH | Rump, Marco | |||
| 14 | Carbon dioxide, dissolved | CO2 diss | µmol/kg | Rump, Marco | ||
| 15 | Fugacity of carbon dioxide in seawater | fCO2w | µatm | Rump, Marco | ||
| 16 | Partial pressure of carbon dioxide (water) at sea surface temperature (wet air) | pCO2water_SST_wet | µatm | Rump, Marco | ||
| 17 | Bicarbonate ion | [HCO3]- | µmol/kg | Rump, Marco | ||
| 18 | Carbonate ion | [CO3]2- | µmol/kg | Rump, Marco | ||
| 19 | Carbon, inorganic, dissolved | DIC | µmol/kg | Rump, Marco | ||
| 20 | Aragonite saturation state | Omega Arg | Rump, Marco | |||
| 21 | Calcite saturation state | Omega Cal | Rump, Marco |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0) (License comes into effect after moratorium ends)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
1200 data points