Seawater carbonate chemistry and biological processes of Mytilus edulis during experiments, 2011 ...

• Main Authors: Melzner, Frank, Stange, Paul, Trübenbach, Katja, Thomsen, Jörn, Casties, Isabel, Panknin, Ulrike, Gorb, Stanislav N, Gutowska, Magdalena A
• Format: Dataset
• Language: English
• Published: PANGAEA 2011
• Subjects: Animalia; Baltic Sea; Benthic animals; Benthos; Bottles or small containers/Aquaria <20 L; Calcification/Dissolution; Coast and continental shelf; Growth/Morphology; Laboratory experiment; Mollusca; Mytilus edulis; Other; Single species; Temperate; Experimental treatment; Cell density; Cell density, standard deviation; pH; pH, standard deviation; Temperature, water; Temperature, standard deviation; Salinity; Salinity, standard deviation; Carbon, inorganic, dissolved; Carbon, inorganic, dissolved, standard deviation; Alkalinity, total; Alkalinity, total, standard deviation; Carbon dioxide, partial pressure; Carbon dioxide, partial pressure, standard deviation; Calcite saturation state; Calcite saturation state, standard deviation; Aragonite saturation state; Aragonite saturation state, standard deviation; Mytilus edulis, shell length; Mytilus edulis, shell length, standard deviation; Mytilus edulis, shell mass growth; Mytilus edulis, shell mass growth, standard deviation; Mytilus edulis, somatic mass growth; Mytilus edulis, somatic mass growth, standard deviation; Mytilus edulis, dissolution, nacre; Mytilus edulis, dissolution, nacre, standard deviation; Carbonate system computation flag; Carbon dioxide; Partial pressure of carbon dioxide water at sea surface temperature wet air; Fugacity of carbon dioxide water at sea surface temperature wet air; Bicarbonate ion; Carbonate ion; WTW 340i pH-analyzer and WTW SenTix 81-electrode; AIRICA analyzer Miranda; Calculated using CO2SYS; Ocean acidification
• Online Access: https://dx.doi.org/10.1594/pangaea.770479; https://doi.pangaea.de/10.1594/PANGAEA.770479

Progressive ocean acidification due to anthropogenic CO2 emissions will alter marine ecosytem processes. Calcifying organisms might be particularly vulnerable to these alterations in the speciation of the marine carbonate system. While previous research efforts have mainly focused on external dissolution of shells in seawater under saturated with respect to calcium carbonate, the internal shell interface might be more vulnerable to acidification. In the case of the blue mussel Mytilus edulis, high body fluid pCO2 causes low pH and low carbonate concentrations in the extrapallial fluid, which is in direct contact with the inner shell surface. In order to test whether elevated seawater pCO2 impacts calcification and inner shell surface integrity we exposed Baltic M. edulis to four different seawater pCO2 (39, 142, 240, 405 Pa) and two food algae (310-350 cells mL-1 vs. 1600-2000 cells mL-1) concentrations for a period of seven weeks during winter (5°C). We found that low food algae concentrations and high pCO2 ... : In order to allow full comparability with other ocean acidification data sets, the R package seacarb (Lavigne and Gattuso, 2011) 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). ...