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  • PANGAEA  (3)
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  • 1
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    Seawater carbonate chemistry and calcification and respiration of Chlamys farreri (2011)
    PANGAEA
    Details
    Publication Date: 2024-03-15
    Description: Marine acidification will be an important environmental problem in the near future as a result of persistent emissions of CO2 and dissolution into seawater. In this study, we found that calcification and respiration of the Zhikong scallop (Chlamys farreri) are likely to be severely affected by increasing acidification. Calcification and respiration significantly declined as pH decreased. The calcification rate decreased by 33% when the pH of water was 7.9 compared with a pH of 8.1, and decreased close to 0 when the pH was reduced to 7.3. CO2 and O2 respiratory rates were reduced by 14% and 11%, respectively, when pH decreased from 7.9 to 7.3. Increasing acidification also led to changes in the metabolic pathways of C. farreri. Under acidic conditions, proteins may replace carbohydrates as the metabolic substrate. The survival of C. farreri is likely to be severely threatened in the next few centuries.
    Keywords: Alkalinity, total; Alkalinity, total, standard deviation; Animalia; Aragonite saturation state; Azumapecten farreri; Benthic animals; Benthos; Bicarbonate ion; Bottles or small containers/Aquaria (〈20 L); Calcification/Dissolution; Calcification rate, standard deviation; Calcification rate of calcium carbonate; Calcite saturation state; 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; Fugacity of carbon dioxide (water) at sea surface temperature (wet air); Laboratory experiment; Mollusca; North Pacific; OA-ICC; Ocean Acidification International Coordination Centre; Oxygen, dissolved; Oxygen, dissolved, standard deviation; Partial pressure of carbon dioxide (water) at sea surface temperature (wet air); pH; pH, standard deviation; Respiration; Respiration rate, carbon dioxide; Respiration rate, carbon dioxide, standard deviation; Respiration rate, oxygen; Respiration rate, oxygen, standard deviation; Respiratory quotient; Respiratory quotient, standard deviation; Salinity; Single species; Species, unique identification; Species, unique identification (Semantic URI); Species, unique identification (URI); Temperate; Temperature, water; Type
    Type: Dataset
    Format: text/tab-separated-values, 230 data points
    Location Call Number Expected Availability
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    DATA PANGAEA
  • 2
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    The potential of ocean acidifi cation on suppressing larval development in the Pacifi c oyster Crassostrea gigas and blood cockle Arca infl ata Reeve (2014)
    PANGAEA
    In:  Supplement to: Li, Jiaqi; Jiang, Zengjie; Zhang, Jihong; Mao, Yuze; Bian, Dapeng; Fang, Jianguang (2014): The potential of ocean acidification on suppressing larval development in the Pacific oyster Crassostrea gigas and blood cockle Arca inflata Reeve. Chinese Journal of Oceanology and Limnology, 32(6), 1307-1313, https://doi.org/10.1007/s00343-014-3317-x
    Details
    Publication Date: 2024-03-15
    Description: We evaluated the effect of pH on larval development in larval Pacific oyster (Crassostrea gigas) and blood cockle ( Arca inflata Reeve). The larvae were reared at pH 8.2 (control), 7.9, 7.6, or 7.3 beginning 30 min or 24 h post fertilization. Exposure to lower pH during early embryonic development inhibited larval shell formation in both species. Compared with the control, larvae took longer to reach the D-veliger stage when reared under pH 7.6 and 7.3. Exposure to lower pH immediately after fertilization resulted in significantly delayed shell formation in the Pacific oyster larvae at pH 7.3 and blood cockle larvae at pH 7.6 and 7.3. However, when exposure was delayed until 24 h post fertilization, shell formation was only inhibited in blood cockle larvae reared at pH 7.3. Thus, the early embryonic stages were more sensitive to acidified conditions. Our results suggest that ocean acidification will have an adverse effect on embryonic development in bivalves. Although the effects appear subtle, they may accumulate and lead to subsequent issues during later larval development.
    Keywords: Alkalinity, total; Animalia; Aragonite saturation state; Arca inflata Reeve; Bicarbonate ion; Bottles or small containers/Aquaria (〈20 L); Calcite saturation state; Calculated using seacarb after Nisumaa et al. (2010); Carbon, inorganic, dissolved; Carbonate ion; Carbonate system computation flag; Carbon dioxide; Coast and continental shelf; Crassostrea gigas; Fugacity of carbon dioxide (water) at sea surface temperature (wet air); Growth/Morphology; Laboratory experiment; Mollusca; North Pacific; OA-ICC; Ocean Acidification International Coordination Centre; Partial pressure of carbon dioxide (water) at sea surface temperature (wet air); Pelagos; pH; Potentiometric titration; Salinity; Shell length; Shell length, standard deviation; Single species; Species; Temperate; Temperature, water; Zooplankton
    Type: Dataset
    Format: text/tab-separated-values, 160 data points
    Location Call Number Expected Availability
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    DATA PANGAEA
  • 3
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    Seawater carbonate chemistry and hatching rate, malformation rate, metamorphosis rate and shell growth of the Pacific abalone in a laboratory experiment (2013)
    PANGAEA
    In:  Supplement to: Li, Jiaqi; Jiang, Zengjie; Zhang, Jihong; Qiu, Jian-Wen; Du, Meirong; Bian, Dapeng; Fang, Jianguang (2013): Detrimental effects of reduced seawater pH on the early development of the Pacific abalone. Marine Pollution Bulletin, 74(1), 320-324, https://doi.org/10.1016/j.marpolbul.2013.06.035
    Details
    Publication Date: 2024-03-15
    Description: The hatching process of the Pacific abalone Haliotis discus hannai was prolonged at a pH of 7.6 and pH 7.3, and the embryonic developmental success was reduced. The hatching rate at pH 7.3 was significantly (10.8%) lower than that of the control (pH 8.2). The malformation rates at pH 7.9 and pH 8.2 were less than 20% but were 53.8% and 77.3% at pH 7.6 and pH 7.3, respectively. When newly hatched larvae were incubated for 48 h at pH 7.3, only 2.7% of the larvae settled, while more than 70% of the larvae completed settlement in the other three pH treatments. However, most 24 h old larvae could complete metamorphosis in all four pH treatments. Overall, a 0.3-unit reduction in water pH will produce no negative effect on the early development of the Pacific abalone, but further reduction in pH to the values predicted for seawater by the end of this century will have strong detrimental effects.
    Keywords: Alkalinity, total; Animalia; Aragonite saturation state; Benthic animals; Benthos; Bicarbonate ion; Bottles or small containers/Aquaria (〈20 L); Calcite saturation state; Calculated using CO2SYS; Calculated using seacarb after Nisumaa et al. (2010); Carbon, inorganic, dissolved; Carbonate ion; Carbonate system computation flag; Carbon dioxide; Coast and continental shelf; Description; EXP; Experiment; Fugacity of carbon dioxide (water) at sea surface temperature (wet air); Growth/Morphology; Haliotis discus hannai; Hatching rate; Hatching rate, standard deviation; Identification; Laboratory experiment; Malformation rate; Malformation rate, standard deviation; Metamorphosis rate; Metamorphosis rate, standard deviation; Mollusca; North Pacific; OA-ICC; Ocean Acidification International Coordination Centre; Partial pressure of carbon dioxide (water) at sea surface temperature (wet air); pH; Reproduction; Salinity; Shell length; Shell length, standard deviation; Single species; Species; Sungou_Bay; Temperate; Temperature, water; Treatment
    Type: Dataset
    Format: text/tab-separated-values, 288 data points
    Location Call Number Expected Availability
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    DATA PANGAEA
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