Seawater carbonate chemistry and biological processes during experiments with early life stages of the blue mussel Mytilus edulis, 2010 ...

• Main Authors: Gazeau, Frédéric, Gattuso, Jean-Pierre, Dawber, Caroline F, Pronker, A E, Peene, F, Peene, J, Heip, Carlo H R, Middelburg, Jack J
• Format: Dataset
• Language: English
• Published: PANGAEA 2010
• Subjects: Animalia; Coast and continental shelf; Containers and aquaria 20-1000 L or < 1 m**2; Growth/Morphology; Laboratory experiment; Mollusca; Mytilus edulis; North Atlantic; Pelagos; Reproduction; FOS Medical biotechnology; Single species; Temperate; Zooplankton; Identification; Experimental treatment; Experiment day; Temperature, water; Temperature, standard deviation; Salinity; Salinity, standard deviation; Oxygen saturation; Oxygen, standard deviation; pH; pH, standard deviation; Chlorophyll a; Chlorophyll a, standard deviation; Alkalinity, total; Alkalinity, total, standard deviation; Partial pressure of carbon dioxide water at sea surface temperature wet air; Carbon, inorganic, dissolved; Bicarbonate ion; Carbonate ion; Aragonite saturation state; Calcite saturation state; Carbonate system computation flag; Carbon dioxide; Fugacity of carbon dioxide water at sea surface temperature wet air; Mytilus edulis, D-larvae hatching rate success; Mytilus edulis, D-larvae hatching rate success, standard deviation; Mytilus edulis, D-larvae shell length; Mytilus edulis, D-larvae shell length, standard deviation; Mytilus edulis, standard deviation; Mytilus edulis, shell length; Mytilus edulis, shell length, standard deviation; Mytilus edulis, shell thickness; Mytilus edulis, shell thickness, standard deviation; pH meter Metrohm electrodes; Alkalinity, Gran titration Gran, 1950; Ocean acidification
• Online Access: https://dx.doi.org/10.1594/pangaea.745072; https://doi.pangaea.de/10.1594/PANGAEA.745072

Several experiments have shown a decrease of growth and calcification of organisms at decreased pH levels. There is a growing interest to focus on early life stages that are believed to be more sensitive to environmental disturbances such as hypercapnia. Here, we present experimental data, acquired in a commercial hatchery, demonstrating that the growth of planktonic mussel (Mytilus edulis) larvae is significantly affected by a decrease of pH to a level expected for the end of the century. Even though there was no significant effect of a 0.25-0.34 pH unit decrease on hatching and mortality rates during the first 2 days of development nor during the following 13-day period prior to settlement, final shells were respectively 4.5±1.3 and 6.0±2.3% smaller at pHNBS~7.8 (pCO2~1100-1200 µatm) than at a control pHNBS of ~8.1 (pCO2~460-640 µatm). Moreover, a decrease of 12.0±5.4% of shell thickness was observed after 15d of development. More severe impacts were found with a decrease of ~0.5 pHNBS unit during the ... : 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). ...