Seawater carbonate chemistry and resource allocation and extracellular acid-base status in the sea urchin Strongylocentrotus droebachiensis during experiments, 2012 ...

• Main Authors: Stumpp, Meike, Trübenbach, Katja, Brennecke, Dennis, Hu, Marian Y, Melzner, Frank
• Format: Dataset
• Language: English
• Published: PANGAEA 2012
• Subjects: Animalia; Behaviour; Benthic animals; Benthos; Bottles or small containers/Aquaria <20 L; Coast and continental shelf; Echinodermata; Growth/Morphology; Laboratory experiment; North Atlantic; Red Sea; Reproduction; FOS Medical biotechnology; Single species; Strongylocentrotus droebachiensis; Temperate; Time, incubation; Experimental treatment; Flow rate; Flow rate, standard deviation; Replicates; Temperature, water; Temperature, standard deviation; Salinity; Salinity, standard deviation; pH; pH, standard deviation; Alkalinity, total; Alkalinity, total, standard deviation; Carbon, inorganic, dissolved; Carbon, inorganic, dissolved, standard deviation; Partial pressure of carbon dioxide water at sea surface temperature wet air; Carbon dioxide, partial pressure, standard deviation; Calcite saturation state; Calcite saturation state, standard deviation; Aragonite saturation state; Aragonite saturation state, standard deviation; Strongylocentrotus droebachiensis, feeding state; Gonad stage, developing; Strongylocentrotus droebachiensis, coelomic fluid color; Positioning type/details; Strongylocentrotus droebachiensis, diameter; Strongylocentrotus droebachiensis, diameter, standard deviation; Strongylocentrotus droebachiensis, weight; Strongylocentrotus droebachiensis, weight, standard deviation; Strongylocentrotus droebachiensis, test, weight; Strongylocentrotus droebachiensis, test, weight, standard deviation; Strongylocentrotus droebachiensis, lantern of Aristotle, weight; Strongylocentrotus droebachiensis, lantern of Aristotle, weight, standard deviation; Kattegat; Ocean acidification
• Online Access: https://dx.doi.org/10.1594/pangaea.779697; https://doi.pangaea.de/10.1594/PANGAEA.779697

Anthropogenic CO2 emission will lead to an increase in seawater pCO2 of up to 80-100 Pa (800-1000 µatm) within this century and to an acidification of the oceans. Green sea urchins (Strongylocentrotus droebachiensis) occurring in Kattegat experience seasonal hypercapnic and hypoxic conditions already today. Thus, anthropogenic CO2 emissions will add up to existing values and will lead to even higher pCO2 values >200 Pa (>2000 µatm). To estimate the green sea urchins' potential to acclimate to acidified seawater, we calculated an energy budget and determined the extracellular acid base status of adult S. droebachiensis exposed to moderately (102 to 145 Pa, 1007 to 1431 µatm) and highly (284 to 385 Pa, 2800 to 3800 µatm) elevated seawater pCO2 for 10 and 45 days.A 45 - day exposure to elevated pCO2 resulted in a shift in energy budgets, leading to reduced somatic and reproductive growth. Metabolic rates were not significantly affected, but ammonium excretion increased in response to elevated pCO2. This ... : 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). ...