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| Format: | Dataset Open Access |
| Language: | en |
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PANGAEA
2018
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| Online Access: | https://doi.org/10.1594/PANGAEA.908246 |
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| _version_ | 1867170095434825728 |
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| author | Sezer, Narin Kılıç, Önder Metian, Marc Belivermis, Murat |
| author_facet | Sezer, Narin Kılıç, Önder Metian, Marc Belivermis, Murat |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | The uptake and depuration kinetics of dissolved 109Cd, 57Co and 134Cs were determined experimentally in the European flat oyster Ostrea edulis (Linnaeus, 1758) under different pH conditions (i.e., 8.1, 7.8 and 7.5) for 59 days. Uptake and depuration rates were variable within these elements; no effects were observed under different pH conditions for the uptake biokinetics of 109Cd and 57Co and depuration of 109Cd and 134Cs in oyster. The uptake and depuration rate constants of 134Cs differed during the exposure phase between treatments, while the steady state concentration factors (CFss) were similar. The resulting Cs activity that was purged during short- and long-term depuration phases differed, while the remaining activities after thirty-nine days depuration phase (RA39d) were similar. Co-57 depuration was affected by pCO2 conditions: RA39d were found to be significantly higher in oysters reared in normocapnia (pCO2 = 350 μatm) compared to high pCO2 conditions. Co-57 tissue distribution did not differ among the variable pCO2 conditions, while 109Cd and 134Cs accumulated in soft tissue of oysters were found to be higher under the highest pCO2. Additionally, Cd, Co and Cs were stored differently in various compartments of the oyster cells, i.e. cellular debris, metal-rich granules (MRG) and metallothionein-like proteins (MTLP), respectively. The subcellular sequestration of the elements at the end of the depuration phase did not differ among pH treatments. These results suggest that bioconcentration and tissue/subcellular distribution are element-specific in the oyster, and the effects of higher pCO2 driven acidification and/or coastal acidification variably influence these processes. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_908246 |
| institution | PANGAEA |
| language | en |
| publishDate | 2018 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | Seawater carbonate chemistry and 109Cd, 57Co, and 134Cs bioconcentration by the European oyster (Ostrea edulis) Sezer, Narin Kılıç, Önder Metian, Marc Belivermis, Murat Activity; Alkalinity, total; Alkalinity, total, standard deviation; Animalia; Aragonite saturation state; Benthic animals; Benthos; Bicarbonate ion; Cadmium-109, activity; Cadmium-109, activity, normalized; Cadmium-109, concentration factors; Caesium-134; Caesium-134, concentration factors; Caesium-134 activity per mass; Calcite saturation state; Calculated using seacarb; Calculated using seacarb after Nisumaa et al. (2010); Carbon, inorganic, dissolved; Carbonate ion; Carbonate system computation flag; Carbon dioxide; Coast and continental shelf; Cobalt-57, activity; Cobalt-57, activity, normalized; Cobalt-57, concentration factors; Containers and aquaria (20-1000 L or < 1 m**2); Date; DATE/TIME; Duration, number of days; Fugacity of carbon dioxide (water) at sea surface temperature (wet air); Laboratory experiment; Mediterranean Sea; Mollusca; Number; OA-ICC; Ocean acidification; Ocean Acidification International Coordination Centre; Ostrea edulis; Other studied parameter or process; Partial pressure of carbon dioxide (water) at sea surface temperature (wet air); Percentage; pH; pH, standard deviation; pH, total scale; Position; Potentiometric; Potentiometric titration; Registration number of species; Salinity; Single species; Species; Temperate; Temperature, water; Temperature, water, standard deviation; Type; Uniform resource locator/link to reference; Wet mass The uptake and depuration kinetics of dissolved 109Cd, 57Co and 134Cs were determined experimentally in the European flat oyster Ostrea edulis (Linnaeus, 1758) under different pH conditions (i.e., 8.1, 7.8 and 7.5) for 59 days. Uptake and depuration rates were variable within these elements; no effects were observed under different pH conditions for the uptake biokinetics of 109Cd and 57Co and depuration of 109Cd and 134Cs in oyster. The uptake and depuration rate constants of 134Cs differed during the exposure phase between treatments, while the steady state concentration factors (CFss) were similar. The resulting Cs activity that was purged during short- and long-term depuration phases differed, while the remaining activities after thirty-nine days depuration phase (RA39d) were similar. Co-57 depuration was affected by pCO2 conditions: RA39d were found to be significantly higher in oysters reared in normocapnia (pCO2 = 350 μatm) compared to high pCO2 conditions. Co-57 tissue distribution did not differ among the variable pCO2 conditions, while 109Cd and 134Cs accumulated in soft tissue of oysters were found to be higher under the highest pCO2. Additionally, Cd, Co and Cs were stored differently in various compartments of the oyster cells, i.e. cellular debris, metal-rich granules (MRG) and metallothionein-like proteins (MTLP), respectively. The subcellular sequestration of the elements at the end of the depuration phase did not differ among pH treatments. These results suggest that bioconcentration and tissue/subcellular distribution are element-specific in the oyster, and the effects of higher pCO2 driven acidification and/or coastal acidification variably influence these processes. |
| title | Seawater carbonate chemistry and 109Cd, 57Co, and 134Cs bioconcentration by the European oyster (Ostrea edulis) |
| topic | Activity; Alkalinity, total; Alkalinity, total, standard deviation; Animalia; Aragonite saturation state; Benthic animals; Benthos; Bicarbonate ion; Cadmium-109, activity; Cadmium-109, activity, normalized; Cadmium-109, concentration factors; Caesium-134; Caesium-134, concentration factors; Caesium-134 activity per mass; Calcite saturation state; Calculated using seacarb; Calculated using seacarb after Nisumaa et al. (2010); Carbon, inorganic, dissolved; Carbonate ion; Carbonate system computation flag; Carbon dioxide; Coast and continental shelf; Cobalt-57, activity; Cobalt-57, activity, normalized; Cobalt-57, concentration factors; Containers and aquaria (20-1000 L or < 1 m**2); Date; DATE/TIME; Duration, number of days; Fugacity of carbon dioxide (water) at sea surface temperature (wet air); Laboratory experiment; Mediterranean Sea; Mollusca; Number; OA-ICC; Ocean acidification; Ocean Acidification International Coordination Centre; Ostrea edulis; Other studied parameter or process; Partial pressure of carbon dioxide (water) at sea surface temperature (wet air); Percentage; pH; pH, standard deviation; pH, total scale; Position; Potentiometric; Potentiometric titration; Registration number of species; Salinity; Single species; Species; Temperate; Temperature, water; Temperature, water, standard deviation; Type; Uniform resource locator/link to reference; Wet mass |
| url | https://doi.org/10.1594/PANGAEA.908246 |