Seawater carbonate chemistry and hatching success and size of the marine clam Limecola balthica

• Main Authors: Van Colen, Carl, Jansson, Anna, Saunier, Alice, Lacoue-Labathe, Thomas, Vincx, Magda
• Format: Dataset
• Language: English
• Published: PANGAEA 2018
• Subjects: Alkalinity; total; standard deviation; Animalia; Aragonite saturation state; Baltic Sea; Benthos; Bicarbonate ion; Bottles or small containers/Aquaria (<20 L); Calcite saturation state; Calculated using CO2SYS; Calculated using seacarb after Nisumaa et al. (2010); Carbon; inorganic; dissolved; Carbonate ion; Carbonate system computation flag; Carbon dioxide; Coast and continental shelf; Egg hatching success; standard error; Event label; EXP; Experiment; Fugacity of carbon dioxide (water) at sea surface temperature (wet air); Growth/Morphology; Gulf_of_Biscay; Gulf_of_Finland_OA; Hatching size; Laboratory experiment; Limecola balthica; Location; Mollusca; North Atlantic; OA-ICC; Ocean Acidification International Coordination Centre; Partial pressure of carbon dioxide (water) at sea surface temperature (wet air); pH; Potentiometric; Potentiometric titration; Reproduction; Salinity; Single species; Southern_North_Sea_OA; Species; Ocean acidification
• Online Access: https://doi.pangaea.de/10.1594/PANGAEA.951202; https://doi.org/10.1594/PANGAEA.951202

Anthropogenic CO2 emissions are rapidly changing seawater temperature, pH and carbonate chemistry. This study compares the embryonic development under high pCO2conditions across the south-north distribution range of the marine clam Limecola balthicain NW Europe. The combined effects of elevated temperature and reduced pH on hatching success and size varied strongly between the three studied populations, with the Gulf of Finland population appearing most endangered under the conditions predicted to occur by 2100. These results demonstrate that the assessment of marine faunal population persistence to future climatic conditions needs to consider the interactive effects of co-occurring physico-chemical alterations in seawater within the local context that determines population fitness, adaptation potential and the system resilience to environmental change.