PANGAEA_996214 Total alkalinity and pH in the alkalization mesocosms of a chronic Ostrea edulis alkalinity-enhancement exposure experiment Rump, Marco; Lannig, Gisela; Bock, Christian; Benthien, Albert; Pogoda, Bernadette; Antoni, Dominik; Gerdts, Gunnar Total alkalinity and pH in the alkalization mesocosms of a chronic Ostrea edulis alkalinity-enhancement exposure experiment 2026-07-29 PANGAEA Dataset https://doi.pangaea.de/10.1594/PANGAEA.996214 Investigator Marco Rump marco.rump@awi.de Earth Science Event label Type of study Incubation type Experiment day Sampling date/time, experiment Treatment Replicates pH Alkalinity, total geoscientificInformation ChronicOystersOAE_2024 ecotoxicology Mesocosm experiment ocean alkalinity enhancement Ostrea edulis 2024-04-17 2025-03-12 Complete 54.180327 54.180327 7.888944 7.888944 access rights needed CC-BY-4.0: Creative Commons Attribution 4.0 International (License comes into effect after moratorium ends) English PANGAEA Data Publisher for Earth & Environmental Science https://www.pangaea.de/ Data Center Contact Michael Diepenbroek info@pangaea.de

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Bremen Bremen 28359 Germany online 2784 data points text/tab-separated-values 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

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. ** For all details see the full metadata description at "https://doi.pangaea.de/10.1594/PANGAEA.996214"!

http://invabio.wdc-mare.org/mesocubi.jpg Mesocosm experiment https://doi.pangaea.de/10.1594/PANGAEA.996215 Total alkalinity and pH in the exposure mesocosms of a chronic Ostrea edulis alkalinity-enhancement exposure experiment https://doi.pangaea.de/10.1594/PANGAEA.996216 Oyster mortality and physicochemical parameters in the exposure mesocosms of a chronic Ostrea edulis alkalinity-enhancement exposure experiment https://doi.pangaea.de/10.1594/PANGAEA.996217 Total alkalinity and pH during a short-term feeding experiment testing the contribution of shellfish diet (Reed Mariculture SD1800) to seawater alkalinity https://doi.pangaea.de/10.1594/PANGAEA.996218 Glycogen concentration in the labial palps of Ostrea edulis during a chronic alkalinity-enhancement exposure experiment https://doi.pangaea.de/10.1594/PANGAEA.996219 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 https://doi.pangaea.de/10.1594/PANGAEA.996220 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 https://doi.pangaea.de/10.1594/PANGAEA.996221 Tissue-accumulated nickel, chromium and cobalt concentrations in Ostrea edulis measured by ICP-OES at the end of a chronic alkalinity-enhancement exposure experiment https://doi.pangaea.de/10.1594/PANGAEA.996222 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 PANGAEA_996264 DIF 9.4 2026-07-29 2026-07-29