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| Main Authors: | , , , , , |
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| Format: | Dataset Open Access |
| Language: | en |
| Published: |
PANGAEA
2016
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| Subjects: | |
| Online Access: | https://doi.org/10.1594/PANGAEA.859567 |
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| _version_ | 1867170990531805184 |
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| author | Shi, Wei Zhao, Xinguo Han, Yu Che, Zhumei Chai, Xueliang Liu, Guangxu |
| author_facet | Shi, Wei Zhao, Xinguo Han, Yu Che, Zhumei Chai, Xueliang Liu, Guangxu |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | To date, the effects of ocean acidification on toxic metals accumulation and the underlying molecular mechanism remains unknown in marine bivalve species. In the present study, the effects of the realistic future ocean pCO2 levels on the cadmium (Cd) accumulation in the gills, mantle and adductor muscles of three bivalve species, Mytilus edulis, Tegillarca granosa, and Meretrix meretrix, were investigated. The results obtained suggested that all species tested accumulated significantly higher Cd (p<0.05) in the CO2 acidified seawater during the 30 days experiment and the health risk of Cd (based on the estimated target hazard quotients, THQ) via consumption of M. meretrix at pH 7.8 and 7.4 significantly increased 1.21 and 1.32 times respectively, suggesting a potential threat to seafood safety. The ocean acidification-induced increase in Cd accumulation may have occurred due to (i) the ocean acidification increased the concentration of Cd and the Cd2+/Ca2+ in the seawater, which in turn increased the Cd influx through Ca channel; (ii) the acidified seawater may have brought about epithelia damage, resulting in easier Cd penetration; and (iii) ocean acidification hampered Cd exclusion. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_859567 |
| institution | PANGAEA |
| language | en |
| publishDate | 2016 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | Ocean acidification increases cadmium accumulation in marine bivalves: a potential threat to seafood safety Shi, Wei Zhao, Xinguo Han, Yu Che, Zhumei Chai, Xueliang Liu, Guangxu Alkalinity, total; Alkalinity, total, standard deviation; Animalia; Aragonite saturation state; Aragonite saturation state, standard deviation; Benthic animals; Benthos; Bicarbonate ion; Cadmium; Cadmium, standard deviation; Calcite saturation state; Calcite saturation state, standard deviation; Calculated using seacarb after Nisumaa et al. (2010); Carbon, inorganic, dissolved; Carbon, inorganic, dissolved, standard deviation; Carbonate ion; Carbonate system computation flag; Carbon dioxide; Coast and continental shelf; Containers and aquaria (20-1000 L or < 1 m**2); Date; Fugacity of carbon dioxide (water) at sea surface temperature (wet air); Gene expression; Gene expression, standard deviation; Laboratory experiment; Mass; Mass, standard deviation; Meretrix meretrix; Mollusca; Mytilus edulis; North Pacific; OA-ICC; Ocean acidification; Ocean Acidification International Coordination Centre; Other studied parameter or process; Partial pressure of carbon dioxide, standard deviation; Partial pressure of carbon dioxide (water) at sea surface temperature (wet air); pH, NBS scale; pH, standard deviation; pH, total scale; Potentiometric; Registration number of species; Salinity; Salinity, standard deviation; Sample code/label; Single species; Species; Tegillarca granosa; Temperate; Temperature, water; Temperature, water, standard deviation; Tissues; Treatment; Type; Uniform resource locator/link to reference To date, the effects of ocean acidification on toxic metals accumulation and the underlying molecular mechanism remains unknown in marine bivalve species. In the present study, the effects of the realistic future ocean pCO2 levels on the cadmium (Cd) accumulation in the gills, mantle and adductor muscles of three bivalve species, Mytilus edulis, Tegillarca granosa, and Meretrix meretrix, were investigated. The results obtained suggested that all species tested accumulated significantly higher Cd (p<0.05) in the CO2 acidified seawater during the 30 days experiment and the health risk of Cd (based on the estimated target hazard quotients, THQ) via consumption of M. meretrix at pH 7.8 and 7.4 significantly increased 1.21 and 1.32 times respectively, suggesting a potential threat to seafood safety. The ocean acidification-induced increase in Cd accumulation may have occurred due to (i) the ocean acidification increased the concentration of Cd and the Cd2+/Ca2+ in the seawater, which in turn increased the Cd influx through Ca channel; (ii) the acidified seawater may have brought about epithelia damage, resulting in easier Cd penetration; and (iii) ocean acidification hampered Cd exclusion. |
| title | Ocean acidification increases cadmium accumulation in marine bivalves: a potential threat to seafood safety |
| topic | Alkalinity, total; Alkalinity, total, standard deviation; Animalia; Aragonite saturation state; Aragonite saturation state, standard deviation; Benthic animals; Benthos; Bicarbonate ion; Cadmium; Cadmium, standard deviation; Calcite saturation state; Calcite saturation state, standard deviation; Calculated using seacarb after Nisumaa et al. (2010); Carbon, inorganic, dissolved; Carbon, inorganic, dissolved, standard deviation; Carbonate ion; Carbonate system computation flag; Carbon dioxide; Coast and continental shelf; Containers and aquaria (20-1000 L or < 1 m**2); Date; Fugacity of carbon dioxide (water) at sea surface temperature (wet air); Gene expression; Gene expression, standard deviation; Laboratory experiment; Mass; Mass, standard deviation; Meretrix meretrix; Mollusca; Mytilus edulis; North Pacific; OA-ICC; Ocean acidification; Ocean Acidification International Coordination Centre; Other studied parameter or process; Partial pressure of carbon dioxide, standard deviation; Partial pressure of carbon dioxide (water) at sea surface temperature (wet air); pH, NBS scale; pH, standard deviation; pH, total scale; Potentiometric; Registration number of species; Salinity; Salinity, standard deviation; Sample code/label; Single species; Species; Tegillarca granosa; Temperate; Temperature, water; Temperature, water, standard deviation; Tissues; Treatment; Type; Uniform resource locator/link to reference |
| url | https://doi.org/10.1594/PANGAEA.859567 |