Seawater carbonate chemistry and environmental data, and nutrients of KOSMOS Bergen 2015 mesocosm study ...

• Main Authors: Spisla, Carsten, Taucher, Jan, Bach, Lennart Thomas, Haunost, Mathias, Boxhammer, Tim, King, Andrew L, Jenkins, Bethany D, Wallace, Joselynn R, Ludwig, Andrea, Meyer, Jana, Stange, Paul, Minutolo, Fabrizio, Lohbeck, Kai T, Nauendorf, Alice, Kalter, Verena, Lischka, Silke, Sswat, Michael, Dörner, Isabel, Ismar-Rebitz, Stefanie M H, Aberle, Nicole, Yong, Jaw-Chuen, Bouquet, Jean-Marie, Lechtenbörger, Anna K, Kohnert, Peter, Krudewig, Michael, Riebesell, Ulf
• Format: Dataset
• Language: English
• Published: PANGAEA 2021
• Subjects: Biomass/Abundance/Elemental composition; Coast and continental shelf; Community composition and diversity; Entire community; Field experiment; Mesocosm or benthocosm; North Atlantic; Pelagos; Primary production/Photosynthesis; Temperate; Event label; Type; DATE/TIME; Day of experiment; Mesocosm label; Partial pressure of carbon dioxide water at sea surface temperature wet air; pH; Salinity; Temperature, water; Chlorophyll a; Aragonite saturation state; Calcite saturation state; Prasinophyceae indeterminata, biomass as carbon; Chlorophyceae indeterminata, biomass as carbon; Dinophyceae indeterminata, biomass as carbon; Diatoms indeterminata, biomass as carbon; Cryptophyceae indeterminata, biomass as carbon; Cyanophyceae, biomass as carbon; Chrysophyceae indeterminata, biomass as carbon; Prymnesiophyceae indeterminata, biomass as carbon; Carbon, total, particulate; Nitrogen, total, particulate; Nitrogen, organic, particulate; Carbon, organic, particulate; Phosphate, total, particulate; Particulate inorganic carbon/particulate organic carbon ratio; Biogenic silica; Carbon, organic, particulate/Nitrogen, organic, particulate ratio; Nitrogen, organic, particulate/Phosphorus, organic, particulate ratio; Carbon, organic, particulate/Phosphorus, particulate ratio; Nitrate; Silicate; Nitrite; Phosphate; Ammonium; Nitrate and Nitrite; Ratio; Temperature, water, standard deviation; Salinity, standard deviation; Carbon, inorganic, dissolved; Ocean acidification
• Online Access: https://dx.doi.org/10.1594/pangaea.931402; https://doi.pangaea.de/10.1594/PANGAEA.931402

The oceans' uptake of anthropogenic carbon dioxide (CO2) decreases seawater pH and alters the inorganic carbon speciation – summarized in the term ocean acidification (OA). Already today, coastal regions experience episodic pH events during which surface layer pH drops below values projected for the surface ocean at the end of the century. Future OA is expected to further enhance the intensity of these coastal extreme pH events. To evaluate the influence of such episodic OA events in coastal regions, we deployed eight pelagic mesocosms for 53 days in Raunefjord, Norway, and enclosed 56–61 m**3 of local seawater containing a natural plankton community under nutrient limited post-bloom conditions. Four mesocosms were enriched with CO2 to simulate extreme pCO2 levels of 1978-2069 μatm while the other four served as untreated controls. Here, we present results from multivariate analyses on OA-induced changes in the phyto-, micro-, and mesozooplankton community structure. Pronounced differences in the plankton ... : In order to allow full comparability with other ocean acidification data sets, the R package seacarb (Gattuso et al, 2021) 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 2021-05-11. ...