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| Format: | Dataset Open Access |
| Language: | en |
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PANGAEA
2023
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| Online Access: | https://doi.org/10.1594/PANGAEA.957794 |
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| _version_ | 1867170119014154240 |
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| author | Mojtahid, Meryem Depuydt, Pauline Mouret, Aurélia Le Houedec, Sandrine Fiorini, Sarah Chollet, S Massol, F Dohou, F Filipsson, Helena L Boer, Wim Reichart, Gert-Jan Barras, Christine |
| author_facet | Mojtahid, Meryem Depuydt, Pauline Mouret, Aurélia Le Houedec, Sandrine Fiorini, Sarah Chollet, S Massol, F Dohou, F Filipsson, Helena L Boer, Wim Reichart, Gert-Jan Barras, Christine |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | Insights into past marine carbon cycling and water mass properties can be obtained by means of geochemical proxies calibrated through controlled laboratory experiments with accurate seawater carbonate system (C-system) manipulations. Here, we explored the use of strontium/calcium ratio (Sr/Ca) of the calcite shells of benthic foraminifera as a potential seawater C-system proxy through a controlled growth experiment with two deep-sea species (Bulimina marginata and Cassidulina laevigata) and one intertidal species (Ammonia T6). To this aim, we used two experimental set-ups to decouple as much as possible the individual components of the carbonate system, i.e., changing pH at constant dissolved inorganic carbon (DIC) and changing DIC at constant pH. Four climatic chambers were used with different controlled concentrations of atmospheric pCO2 (180 ppm, 410 ppm, 1000 ppm, 1500 ppm). Our results demonstrated that pH did not influence the survival and growth of the three species. However, low DIC conditions (879 μmol kg−1) negatively affected B. marginata and C. laevigata through reduced growth, whereas no effect was observed for Ammonia T6. Our results also showed that Sr/Ca was positively correlated with total Alkalinity (TA), DIC and bicarbonate ion concentration ([HCO3−]) for Ammonia T6 and B. marginata; i.e., DIC and/or [HCO3−] were the main controlling factors. For these two species, the regression models were coherent with published data (existing so far only for Ammonia T6) and showed overall similar slopes but different intercepts, implying species-specific effects. Furthermore, the Sr/Ca – C-system relationship was not impacted by ontogenetic trends between chamber stages, which is a considerable advantage for paleo-applications. This applied particularly to Ammonia T6 that calcified many chambers compared to the two other species. However, no correlation with any of the C-system parameters was observed for Sr/Ca in C. laevigata. This might imply either a strong species-specific effect and/or a low tolerance to laboratory conditions leading to a physiological stress, thereby impacting the Sr incorporation into the calcite lattice of C. laevigata. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_957794 |
| institution | PANGAEA |
| language | en |
| publishDate | 2023 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | Seawater carbonate chemistry and impact of different carbonate system parameters on benthic foraminifera from controlled growth experiments Mojtahid, Meryem Depuydt, Pauline Mouret, Aurélia Le Houedec, Sandrine Fiorini, Sarah Chollet, S Massol, F Dohou, F Filipsson, Helena L Boer, Wim Reichart, Gert-Jan Barras, Christine Alkalinity, total; Alkalinity, total, standard deviation; Ammonia confertitesta; Aragonite saturation state; Aragonite saturation state, standard deviation; Barium/Calcium ratio; Bicarbonate ion; Bicarbonate ion, standard deviation; Biomass/Abundance/Elemental composition; Bottles or small containers/Aquaria (<20 L); Bulimina marginata; Calcite saturation state; Calcite saturation state, standard deviation; Calculated using CO2SYS; Calculated using seacarb after Nisumaa et al. (2010); Calculated using seacarb after Orr et al. (2018); Carbon, inorganic, dissolved; Carbon, inorganic, dissolved, standard deviation; Carbonate ion; Carbonate ion, standard deviation; Carbonate system computation flag; Carbon dioxide; Carbon dioxide, standard deviation; Cassidulina laevigata; Chromista; Coast and continental shelf; Colorimetric; EXP; Experiment; Foraminifera; Fugacity of carbon dioxide (water) at sea surface temperature (wet air); Fugacity of carbon dioxide in seawater, standard deviation; Gullmar_Fjord_Foraminifera; Identification; Laboratory experiment; Magnesium/Calcium ratio; North Atlantic; OA-ICC; Ocean acidification; Ocean Acidification International Coordination Centre; Partial pressure of carbon dioxide, standard deviation; Partial pressure of carbon dioxide (water) at sea surface temperature (wet air); Pelagos; pH, standard deviation; pH, total scale; Potentiometric; Potentiometric titration; Quality flag, profile; Replicate; Salinity; Salinity, standard deviation; Single species; Species, unique identification; Species, unique identification (Semantic URI); Species, unique identification (URI); Specimen number; Strontium/Calcium ratio; Temperate; Temperature, water; Temperature, water, standard deviation; Type of chamber; Type of study; Zinc/Calcium ratio; Zooplankton Insights into past marine carbon cycling and water mass properties can be obtained by means of geochemical proxies calibrated through controlled laboratory experiments with accurate seawater carbonate system (C-system) manipulations. Here, we explored the use of strontium/calcium ratio (Sr/Ca) of the calcite shells of benthic foraminifera as a potential seawater C-system proxy through a controlled growth experiment with two deep-sea species (Bulimina marginata and Cassidulina laevigata) and one intertidal species (Ammonia T6). To this aim, we used two experimental set-ups to decouple as much as possible the individual components of the carbonate system, i.e., changing pH at constant dissolved inorganic carbon (DIC) and changing DIC at constant pH. Four climatic chambers were used with different controlled concentrations of atmospheric pCO2 (180 ppm, 410 ppm, 1000 ppm, 1500 ppm). Our results demonstrated that pH did not influence the survival and growth of the three species. However, low DIC conditions (879 μmol kg−1) negatively affected B. marginata and C. laevigata through reduced growth, whereas no effect was observed for Ammonia T6. Our results also showed that Sr/Ca was positively correlated with total Alkalinity (TA), DIC and bicarbonate ion concentration ([HCO3−]) for Ammonia T6 and B. marginata; i.e., DIC and/or [HCO3−] were the main controlling factors. For these two species, the regression models were coherent with published data (existing so far only for Ammonia T6) and showed overall similar slopes but different intercepts, implying species-specific effects. Furthermore, the Sr/Ca – C-system relationship was not impacted by ontogenetic trends between chamber stages, which is a considerable advantage for paleo-applications. This applied particularly to Ammonia T6 that calcified many chambers compared to the two other species. However, no correlation with any of the C-system parameters was observed for Sr/Ca in C. laevigata. This might imply either a strong species-specific effect and/or a low tolerance to laboratory conditions leading to a physiological stress, thereby impacting the Sr incorporation into the calcite lattice of C. laevigata. |
| title | Seawater carbonate chemistry and impact of different carbonate system parameters on benthic foraminifera from controlled growth experiments |
| topic | Alkalinity, total; Alkalinity, total, standard deviation; Ammonia confertitesta; Aragonite saturation state; Aragonite saturation state, standard deviation; Barium/Calcium ratio; Bicarbonate ion; Bicarbonate ion, standard deviation; Biomass/Abundance/Elemental composition; Bottles or small containers/Aquaria (<20 L); Bulimina marginata; Calcite saturation state; Calcite saturation state, standard deviation; Calculated using CO2SYS; Calculated using seacarb after Nisumaa et al. (2010); Calculated using seacarb after Orr et al. (2018); Carbon, inorganic, dissolved; Carbon, inorganic, dissolved, standard deviation; Carbonate ion; Carbonate ion, standard deviation; Carbonate system computation flag; Carbon dioxide; Carbon dioxide, standard deviation; Cassidulina laevigata; Chromista; Coast and continental shelf; Colorimetric; EXP; Experiment; Foraminifera; Fugacity of carbon dioxide (water) at sea surface temperature (wet air); Fugacity of carbon dioxide in seawater, standard deviation; Gullmar_Fjord_Foraminifera; Identification; Laboratory experiment; Magnesium/Calcium ratio; North Atlantic; OA-ICC; Ocean acidification; Ocean Acidification International Coordination Centre; Partial pressure of carbon dioxide, standard deviation; Partial pressure of carbon dioxide (water) at sea surface temperature (wet air); Pelagos; pH, standard deviation; pH, total scale; Potentiometric; Potentiometric titration; Quality flag, profile; Replicate; Salinity; Salinity, standard deviation; Single species; Species, unique identification; Species, unique identification (Semantic URI); Species, unique identification (URI); Specimen number; Strontium/Calcium ratio; Temperate; Temperature, water; Temperature, water, standard deviation; Type of chamber; Type of study; Zinc/Calcium ratio; Zooplankton |
| url | https://doi.org/10.1594/PANGAEA.957794 |