Seawater carbonate chemistry and growth and carbon metabolism of the seaweed Fucus vesiculosus in the western Baltic Sea ...

• Main Authors: Graiff, Angelika, Bartsch, Inka, Ruth, Wolfgang, Wahl, Martin, Karsten, Ulf
• Format: Dataset
• Language: English
• Published: PANGAEA 2015
• Subjects: Baltic Sea; Benthos; Biomass/Abundance/Elemental composition; Chromista; Coast and continental shelf; Fucus vesiculosus; Growth/Morphology; Laboratory experiment; Macroalgae; Mesocosm or benthocosm; Ochrophyta; Single species; Temperate; Temperature; Type; Species, unique identification; Species, unique identification URI; Species, unique identification Semantic URI; Experiment; Sample code/label; Treatment; DATE/TIME; Growth rate; Carbon/Nitrogen ratio; Carbon; Nitrogen, total; Mannitol; Laminarin; Salinity; Salinity, standard deviation; Temperature, water; Temperature, water, standard deviation; Alkalinity, total; Alkalinity, total, standard deviation; Carbon, inorganic, dissolved; Carbonate system computation flag; pH; Carbon dioxide; Fugacity of carbon dioxide water at sea surface temperature wet air; Partial pressure of carbon dioxide water at sea surface temperature wet air; Bicarbonate ion; Carbonate ion; Aragonite saturation state; Calcite saturation state; Calculated using seacarb after Nisumaa et al. 2010; Ocean Acidification International Coordination Centre OA-ICC; Ocean acidification
• Online Access: https://dx.doi.org/10.1594/pangaea.956081; https://doi.pangaea.de/10.1594/PANGAEA.956081

Warming and acidification of the oceans as a consequence of increasing CO2-concentrations occur at large scales. Numerous studies have shown the impact of single stressors on individual species. However, studies on the combined effect of multiple stressors on a multi-species assemblage, which is ecologically much more realistic and relevant, are still scarce. Therefore, we orthogonally crossed the two factors warming and acidification in mesocosm experiments and studied their single and combined impact on the brown alga Fucus vesiculosus associated with its natural community (epiphytes and mesograzers) in the Baltic Sea in all seasons (from April 2013 to April 2014). We superimposed our treatment factors onto the natural fluctuations of all environmental variables present in the Benthocosms in so-called delta-treatments. Thereby we compared the physiological responses of F. vesiculosus (growth and metabolites) to the single and combined effects of natural Kiel Fjord temperatures and pCO2 conditions with a 5 ... : 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 2023-02-28. ...