Early development of undulated surf clam, Paphia undulate under elevated pCO2

• Main Authors: Guo, X, Xu, Xiaowei, Zhang, Pengfei, Huang, M, Luo, Xuan, You, W, Ke, C
• Format: Dataset
• Language: English
• Published: PANGAEA 2016
• Subjects: Alkalinity; total; standard deviation; 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; Development; Experiment; Fugacity of carbon dioxide (water) at sea surface temperature (wet air); Growth/Morphology; Hatching rate; Incubation duration; Laboratory experiment; Larval deformity rate; Metamorphosis rate; Mollusca; Mortality/Survival; North Pacific; OA-ICC; Ocean Acidification International Coordination Centre; Paphia undulate; Partial pressure of carbon dioxide (water) at sea surface temperature (wet air); Pelagos; pH; Potentiometric; Potentiometric titration; Registration number of species; Replicate; Reproduction; Salinity; Shell increment; Pacific; Ocean acidification
• Online Access: https://doi.pangaea.de/10.1594/PANGAEA.868352; https://doi.org/10.1594/PANGAEA.868352

Increasing atmospheric CO2 can decrease the seawater pH and carbonate ions, which may adversely affect the larval survival of calcareous animals. In this study, we simulated future atmospheric CO2 concentrations (800, 1500, 2000 and 3000 µatm) and examined the effects of ocean acidification on the embryonic and larval stage of an infaunal clam Paphia undulate. Significant decrease of hatching of P. undulate was observed when the pCO2 reached 3000 µatm, and larval deformation rate increased significantly when pCO2 reached 2000 µatm, indicating a strong tolerance to ocean acidification compared with the embryonic development of other bivalves. The larvae cultured in 1500 µatm pCO2 exhibited the fastest growth, highest survival and shortened planktonic period, which unordinary phenomenon reflected the beneficial effect of ocean acidification on P. undulate larval development. The better development of P. undulate larvae under a higher CO2 condition maybe an adaptation in response to the acidified sediment in which they live.