Seawater carbonate chemistry and distribution of coastal benthic foraminifera ...

• Main Authors: Charrieau, Laurie M, Filipsson, Helena L, Ljung, Karl, Chierici, Melissa, Knudsen, Karen Luise, Kritzberg, Emma
• Format: Dataset
• Language: English
• Published: PANGAEA 2023
• Subjects: Baltic Sea; Benthos; Coast and continental shelf; Community composition and diversity; Entire community; Field observation; Soft-bottom community; Temperate; Type of study; Station label; Foraminifera, benthic; Species richness; Shannon Diversity Index; Species; Abundance; LATITUDE; LONGITUDE; DEPTH, water; Temperature, water; Salinity; Oxygen; Oxygen penetration depth; pH; Alkalinity, total; Calcite saturation state; Carbonate system computation flag; 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; Carbon, inorganic, dissolved; Aragonite saturation state; Spectrophotometric; Potentiometric titration; Calculated using CO2SYS; 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.958714; https://doi.pangaea.de/10.1594/PANGAEA.958714

Coastal ecosystems are subjected to both large natural variability and increasing anthropogenic impact on environmental parameters such as changes in salinity, temperature, and pH. This study documents the distribution of living benthic foraminifera under the influence of multiple environmental stressors in the Skagerrak-Baltic Sea region. Sediment core tops were studied at five sites along a transect from the Skagerrak to the Baltic Sea, with strong environmental gradients, especially in terms of salinity, pH, calcium carbonate saturation and dissolved oxygen concentration in the bottom water and pore water. We found that living foraminiferal densities and species richness were higher at the Skagerrak station, where the general living conditions were relatively beneficial for Foraminifera, with higher salinity and Ωcalc in the water column and higher pH and oxygen concentration in the bottom and pore water. The most common species reported at each station reflect the differences in the environmental ... : In order to allow full comparability with other ocean acidification data sets, the R package seacarb (Gattuso et al, 2022) 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 2023-05-08. ...