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Seawater carbonate chemistry, thickness and carbonate elemental composition of the test of juvenile sea urchins in a laboratory experiment
Seawater carbonate chemistry, thickness and carbonate elemental composition of the test of juvenile sea urchins in a laboratory experiment
Continuous anthropogenic CO2 emissions to the atmosphere and uptake by the oceans will cause a reduction of seawater pH and saturation state (Omega) of CaCO3 minerals from which marine calcifiers build their shells and skeletons. Sea urchins use the most soluble form of calcium carbonate, high-magnesium calcite, to build their skeleton, spines and grazing apparatus. In order to highlight the effects of increased pCO2 on the test thickness and carbonate elemental composition of juvenile sea urchins and potential differences in their responses linked to the diet, we performed a laboratory experiment on juvenile Paracentrotus lividus, grazing on calcifying (Corallina elongata) and non-calcifying (Cystoseira amentacea, Dictyota dichotoma) macroalgae, under different pH (corresponding to pCO2 values of 390, 550, 750 and 1000 µatm). Results highlighted the importance of the diet in determining sea urchin size irrespectively of the pCO2 level, and the relevance of macroalgal diet in modulating urchin Mg/Ca ratio. The present study provides relevant clues both in terms of the mechanism of mineral incorporation and in terms of bottom-up processes (algal diet) affecting top-down ones (fish predation) in rocky subtidal communities
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). The date of carbonate chemistry calculation by seacarb is 2014-03-17.
Supplement to: Asnaghi, Valentina; Mangialajo, Luisa; Gattuso, Jean-Pierre; Francour, Patrice; Privitera, Davide; Chiantore, Mariachiara (2014): Effects of ocean acidification and diet on thickness and carbonate elemental composition of the test of juvenile sea urchins. Marine Environmental Research, 93, 78-84
Ocean Acidification International Coordination Centre (OA-ICC), Temperate, Salinity, Bicarbonate ion, standard deviation, inorganic, Alkalinity, total, standard deviation, Alkalinity, Dictyota dichotoma, Mediterranean Sea Acidification in a Changing Climate MedSeA, Carbon, inorganic, dissolved, Temperature, water, Calculated using seacarb after Nisumaa et al 2010, Aragonite saturation state, Alkalinity, total, total, pH, Temperature, dissolved, Magnesium/Calcium ratio, Laboratory experiment, Carbonate ion, Partial pressure of carbon dioxide (water) at sea surface temperature (wet air), Temperature, water, standard deviation, Containers and aquaria 20 1000 L or 1 m 2, Corallina elongata, Earth System Research, Containers and aquaria (20-1000 L or < 1 m**2), standard deviation, Thickness, Echinodermata, Potentiometric titration, Calcite saturation state, Location, Potentiometric, water, Partial pressure of carbon dioxide, Growth Morphology, Containers and aquaria (20-1000 L or < 1 m**2), Aragonite saturation state, standard deviation, Benthos, Replicate, Mediterranean Sea Acidification in a Changing Climate (MedSeA), Diameter, Ocean Acidification International Coordination Centre OA ICC, Mediterranean Sea, Animalia, Carbon, inorganic, dissolved, standard deviation, Calcite saturation state, standard deviation, Bicarbonate ion, Calculated using seacarb after Nisumaa et al. (2010), Species, Growth rate, Partial pressure of carbon dioxide, standard deviation, Carbonate system computation flag, Calculated using seacarb, pH, standard deviation, Carbonate ion, standard deviation, Fugacity of carbon dioxide (water) at sea surface temperature (wet air), Carbon, Partial pressure of carbon dioxide water at sea surface temperature wet air, Sample ID, Carbon dioxide, Paracentrotus lividus, Growth/Morphology, Single species, Fugacity of carbon dioxide water at sea surface temperature wet air, Benthic animals, Magnesium Calcium ratio, Other, Coast and continental shelf, Cystoseira amentacea
Ocean Acidification International Coordination Centre (OA-ICC), Temperate, Salinity, Bicarbonate ion, standard deviation, inorganic, Alkalinity, total, standard deviation, Alkalinity, Dictyota dichotoma, Mediterranean Sea Acidification in a Changing Climate MedSeA, Carbon, inorganic, dissolved, Temperature, water, Calculated using seacarb after Nisumaa et al 2010, Aragonite saturation state, Alkalinity, total, total, pH, Temperature, dissolved, Magnesium/Calcium ratio, Laboratory experiment, Carbonate ion, Partial pressure of carbon dioxide (water) at sea surface temperature (wet air), Temperature, water, standard deviation, Containers and aquaria 20 1000 L or 1 m 2, Corallina elongata, Earth System Research, Containers and aquaria (20-1000 L or < 1 m**2), standard deviation, Thickness, Echinodermata, Potentiometric titration, Calcite saturation state, Location, Potentiometric, water, Partial pressure of carbon dioxide, Growth Morphology, Containers and aquaria (20-1000 L or < 1 m**2), Aragonite saturation state, standard deviation, Benthos, Replicate, Mediterranean Sea Acidification in a Changing Climate (MedSeA), Diameter, Ocean Acidification International Coordination Centre OA ICC, Mediterranean Sea, Animalia, Carbon, inorganic, dissolved, standard deviation, Calcite saturation state, standard deviation, Bicarbonate ion, Calculated using seacarb after Nisumaa et al. (2010), Species, Growth rate, Partial pressure of carbon dioxide, standard deviation, Carbonate system computation flag, Calculated using seacarb, pH, standard deviation, Carbonate ion, standard deviation, Fugacity of carbon dioxide (water) at sea surface temperature (wet air), Carbon, Partial pressure of carbon dioxide water at sea surface temperature wet air, Sample ID, Carbon dioxide, Paracentrotus lividus, Growth/Morphology, Single species, Fugacity of carbon dioxide water at sea surface temperature wet air, Benthic animals, Magnesium Calcium ratio, Other, Coast and continental shelf, Cystoseira amentacea
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