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| Autores principales: | , , , , |
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| Formato: | Dataset Open Access |
| Lenguaje: | en |
| Publicado: |
PANGAEA
2011
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| Materias: | |
| Acceso en línea: | https://doi.org/10.1594/PANGAEA.758181 |
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| _version_ | 1867171775806177280 |
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| author | Waldbusser, George G Voigt, Erin P Bergschneider, Heather Green, Mark A Newell, Roger I E |
| author_facet | Waldbusser, George G Voigt, Erin P Bergschneider, Heather Green, Mark A Newell, Roger I E |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | Anthropogenic carbon dioxide (CO2) emissions reduce pH of marine waters due to the absorption of atmospheric CO2 and formation of carbonic acid. Estuarine waters are more susceptible to acidification because they are subject to multiple acid sources and are less buffered than marine waters. Consequently, estuarine shell forming species may experience acidification sooner than marine species although the tolerance of estuarine calcifiers to pH changes is poorly understood. We analyzed 23 years of Chesapeake Bay water quality monitoring data and found that daytime average pH significantly decreased across polyhaline waters although pH has not significantly changed across mesohaline waters. In some tributaries that once supported large oyster populations, pH is increasing. Current average conditions within some tributaries however correspond to values that we found in laboratory studies to reduce oyster biocalcification rates or resulted in net shell dissolution. Calcification rates of juvenile eastern oysters, Crassostrea virginica, were measured in laboratory studies in a three-way factorial design with 3 pH levels, two salinities, and two temperatures. Biocalcification declined significantly with a reduction of ~0.5 pH units and higher temperature and salinity mitigated the decrease in biocalcification. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_758181 |
| institution | PANGAEA |
| language | en |
| publishDate | 2011 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | Seawater carbonate chemistry and calcification rate of eastern oyster Crassostrea virginica, 2011 Waldbusser, George G Voigt, Erin P Bergschneider, Heather Green, Mark A Newell, Roger I E Alkalinity, total; Alkalinity anomaly technique (Smith and Key, 1975); Animalia; Aragonite saturation state; Benthic animals; Benthos; Bicarbonate ion; Bottles or small containers/Aquaria (<20 L); Brackish waters; Calcification/Dissolution; Calcification rate, standard deviation; Calcification rate of calcium carbonate; Calcite saturation state; Calculated; Calculated using CO2SYS; Calculated using seacarb after Nisumaa et al. (2010); Carbon, inorganic, dissolved; Carbonate ion; Carbonate system computation flag; Carbon dioxide; Crassostrea virginica; EPOCA; EUR-OCEANS; European network of excellence for Ocean Ecosystems Analysis; European Project on Ocean Acidification; Experimental treatment; Fugacity of carbon dioxide (water) at sea surface temperature (wet air); Laboratory experiment; Mollusca; North Atlantic; OA-ICC; Ocean acidification; Ocean Acidification International Coordination Centre; Orion Ross conductivity probe; Partial pressure of carbon dioxide (water) at sea surface temperature (wet air); pH, NBS scale; pH, total scale; Salinity; Single species; Species; Temperate; Temperature; Temperature, water; Two-point titration (Edmond 1970) Anthropogenic carbon dioxide (CO2) emissions reduce pH of marine waters due to the absorption of atmospheric CO2 and formation of carbonic acid. Estuarine waters are more susceptible to acidification because they are subject to multiple acid sources and are less buffered than marine waters. Consequently, estuarine shell forming species may experience acidification sooner than marine species although the tolerance of estuarine calcifiers to pH changes is poorly understood. We analyzed 23 years of Chesapeake Bay water quality monitoring data and found that daytime average pH significantly decreased across polyhaline waters although pH has not significantly changed across mesohaline waters. In some tributaries that once supported large oyster populations, pH is increasing. Current average conditions within some tributaries however correspond to values that we found in laboratory studies to reduce oyster biocalcification rates or resulted in net shell dissolution. Calcification rates of juvenile eastern oysters, Crassostrea virginica, were measured in laboratory studies in a three-way factorial design with 3 pH levels, two salinities, and two temperatures. Biocalcification declined significantly with a reduction of ~0.5 pH units and higher temperature and salinity mitigated the decrease in biocalcification. |
| title | Seawater carbonate chemistry and calcification rate of eastern oyster Crassostrea virginica, 2011 |
| topic | Alkalinity, total; Alkalinity anomaly technique (Smith and Key, 1975); Animalia; Aragonite saturation state; Benthic animals; Benthos; Bicarbonate ion; Bottles or small containers/Aquaria (<20 L); Brackish waters; Calcification/Dissolution; Calcification rate, standard deviation; Calcification rate of calcium carbonate; Calcite saturation state; Calculated; Calculated using CO2SYS; Calculated using seacarb after Nisumaa et al. (2010); Carbon, inorganic, dissolved; Carbonate ion; Carbonate system computation flag; Carbon dioxide; Crassostrea virginica; EPOCA; EUR-OCEANS; European network of excellence for Ocean Ecosystems Analysis; European Project on Ocean Acidification; Experimental treatment; Fugacity of carbon dioxide (water) at sea surface temperature (wet air); Laboratory experiment; Mollusca; North Atlantic; OA-ICC; Ocean acidification; Ocean Acidification International Coordination Centre; Orion Ross conductivity probe; Partial pressure of carbon dioxide (water) at sea surface temperature (wet air); pH, NBS scale; pH, total scale; Salinity; Single species; Species; Temperate; Temperature; Temperature, water; Two-point titration (Edmond 1970) |
| url | https://doi.org/10.1594/PANGAEA.758181 |