Ocean acidification impacts mussel control on biomineralisation, supplement to: Fitzer, Susan C; Phoenix, Vernon R; Cusack, Maggie; Kamenos, N A (2014): Ocean acidification impacts mussel control on biomineralisation. Scientific Reports, 4, 6218

• Main Authors: Fitzer, Susan C, Phoenix, Vernon R, Cusack, Maggie, Kamenos, N A
• Format: Dataset
• Language: English
• Published: PANGAEA - Data Publisher for Earth & Environmental Science 2014
• Subjects: Animalia; Benthic animals; Benthos; Bottles or small containers/Aquaria <20 L; Coast and continental shelf; Growth/Morphology; Laboratory experiment; Mollusca; Mytilus edulis; North Atlantic; Other metabolic rates; Single species; Temperate; Species; Image number/name; Sample ID; Partial pressure of carbon dioxide water at sea surface temperature wet air; Temperature, water; Growth rate; Date; Carbonic anhydrase activity; Wet mass; Carbonic anhydrase activity, per tissue weight; Salinity; Salinity, standard deviation; Oxygen saturation; Oxygen, standard deviation; Temperature, water, standard deviation; pH; Partial pressure of carbon dioxide, standard deviation; Alkalinity, total; Alkalinity, total, standard deviation; Bicarbonate ion; Carbonate ion; Calcite saturation state; Aragonite saturation state; Carbonate system computation flag; Carbon dioxide; Fugacity of carbon dioxide water at sea surface temperature wet air; Carbon, inorganic, dissolved; Calculated using CO2SYS; Potentiometric titration; 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.837675; https://doi.pangaea.de/10.1594/PANGAEA.837675

Ocean acidification is altering the oceanic carbonate saturation state and threatening the survival of marine calcifying organisms. Production of their calcium carbonate exoskeletons is dependent not only on the environmental seawater carbonate chemistry but also the ability to produce biominerals through proteins. We present shell growth and structural responses by the economically important marine calcifier Mytilus edulis to ocean acidification scenarios (380, 550, 750, 1000 µatm pCO2). After six months of incubation at 750 µatm pCO2, reduced carbonic anhydrase protein activity and shell growth occurs in M. edulis. Beyond that, at 1000 µatm pCO2, biomineralisation continued but with compensated metabolism of proteins and increased calcite growth. Mussel growth occurs at a cost to the structural integrity of the shell due to structural disorientation of calcite crystals. This loss of structural integrity could impact mussel shell strength and reduce protection from predators and changing environments. : In order to allow full comparability with other ocean acidification data sets, the R package seacarb (Lavigne et al, 2014) 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 is 2014-10-30.