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 (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 repeated measurements of seawater pH and total alkalinity recorded in the alkalinization mesocosms, a set of tanks without oysters that received the same alkalinity treatments as the exposure mesocosms reported in a companion dataset. Total alkalinity was raised in three alkalization cycles to reach target increases of +250 or +500 µmol/kg over unamended seawater, using either dissolved alkalinity addition (NaOH and CaCl2) or olivine-based coastal enhanced silicate weathering. The three cycles ran 17 April to 7 May 2024, 8 May to 27 May 2024 and 30 May to 19 June 2024. Measurements were taken predominantly in triplicate per treatment and sampling day. Seawater pH was measured with a pH electrode and total alkalinity by open-cell potentiometric titration, both on a Metrohm 855 Robotic Titrosampler.
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): 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
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 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 | Replicates | Repl | # | Rump, Marco | ||
| 8 | pH | pH | Rump, Marco | |||
| 9 | Alkalinity, total | AT | µmol/kg | 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:
2784 data points
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