Sea urchin response to rising pCO2 shows ocean acidification may fundamentally alter the chemistry of marine skeletons, supplement to: Bray, Laura; Pancucci-Papadopulou, M A; Hall-Spencer, Jason M (2014): Sea urchin response to rising pCO2 shows ocean acidification may fundamentally alter the chemistry of marine skeletons. Mediterranean Marine Science, 15(3), 510-519

• Main Authors: Bray, Laura, Pancucci-Papadopulou, M A, Hall-Spencer, Jason M
• Format: Dataset
• Language: English
• Published: PANGAEA - Data Publisher for Earth & Environmental Science 2014
• Subjects: Animalia; Arbacia lixula; Benthic animals; Benthos; Biomass/Abundance/Elemental composition; CO2 vent; Echinodermata; Field observation; Mediterranean Sea; Paracentrotus lividus; Single species; Temperate; Site; LATITUDE; LONGITUDE; Date; Species; Individuals; Arsenic; Bromine; Cerium; Chromium; Copper; Hafnium; Manganese; Molybdenum; Nickel; Rubidium; Tin; Strontium; Tellurium; Thorium; Yttrium; Zinc; Calcium oxide; Iron oxide; Iron oxide, Fe2O3; pH; pH, standard error; Temperature, water; Temperature, water, standard error; Salinity; Salinity, standard error; Partial pressure of carbon dioxide water at sea surface temperature wet air; Partial pressure of carbon dioxide water at sea surface temperature wet air, standard error; Alkalinity, total; Alkalinity, total, standard error; Carbonate system computation flag; Carbon dioxide; Fugacity of carbon dioxide water at sea surface temperature wet air; Bicarbonate ion; Carbonate ion; Carbon, inorganic, dissolved; Aragonite saturation state; Calcite saturation state; Potentiometric; Calculated using CO2SYS; Potentiometric titration; Calculated using seacarb after Nisumaa et al. 2010; Mediterranean Sea Acidification in a Changing Climate MedSeA; Ocean Acidification International Coordination Centre OA-ICC; Bray; Ocean acidification
• Online Access: https://dx.doi.org/10.1594/pangaea.834210; https://doi.pangaea.de/10.1594/PANGAEA.834210

Ocean acidification caused by an increase in pCO2 is expected to drastically affect marine ecosystem composition, yet there is much uncertainty about the mechanisms through which ecosystems may be affected. Here we studied sea urchins that are common and important grazers in the Mediterranean (Paracentrotus lividus and Arbacia lixula). Our study included a natural CO2 seep plus reference sites in the Aegean Sea off Greece. The distribution of A. lixula was unaffected by the low pH environment, whereas densities of P. lividus were much reduced. There was skeletal degradation in both species living in acidified waters compared to reference sites and remarkable increases in skeletal manganese levels (P. lividus had a 541% increase, A. lixula a 243% increase), presumably due to changes in mineral crystalline structure. Levels of strontium and zinc were also altered. It is not yet known whether such dramatic changes in skeletal chemistry will affect coastal systems but our study reveals a mechanism that may alter inter-species interactions. : 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 2014-07-22.