Publication Date:
2024-03-15
Description:
Effects of coastal ocean acidification, other than calcification, were tested on juvenile clams (Ruditapes decussatus) during a controlled CO2 perturbation experiment. The carbonate chemistry of natural (control) seawater was manipulated by injecting CO2 to attain two reduced pH levels: -0.4 and -0.7 pH units as compared with the control seawater. After 87 days of exposure, we found that the acidification conditions tested in this experiment significantly reduced the clearance, ingestion and respiration rates, and increased the ammonia excretion rate of R. decussatus seeds. Reduced ingestion combined with increased excretion is generally associated with a reduced energy input, which will likely contribute to a slower growth of the clams in a future high CO2 coastal ocean. These results emphasize the need for management policies to mitigate the adverse effects of global change on aquaculture, which is an economically relevant activity in most coastal areas worldwide.
Keywords:
Alkalinity, total; Alkalinity, total, standard error; Ammonia excretion; Ammonia excretion, per organic weight; Ammonia excretion, relative, standard deviation; Animalia; Aragonite saturation state; Aragonite saturation state, standard error; Ash; Ash, standard deviation; Behaviour; Benthic animals; Benthos; Bicarbonate ion; Bottles or small containers/Aquaria (〈20 L); Calcite saturation state; Calcite saturation state, standard error; Calculated; Calculated using seacarb after Nisumaa et al. (2010); Carbon, inorganic, dissolved; Carbon, inorganic, dissolved, standard error; Carbonate ion; Carbonate system computation flag; Carbon dioxide; Clearance rate; Clearance rate, standard deviation; Coast and continental shelf; Date; Dry mass; Dry mass, standard deviation; Fugacity of carbon dioxide (water) at sea surface temperature (wet air); Individuals; Ingestion rate, organic weight; Ingestion rate, organic weight, per organic weight; Ingestion rate, standard deviation; Laboratory experiment; Mollusca; North Atlantic; OA-ICC; Ocean Acidification International Coordination Centre; Other metabolic rates; Partial pressure of carbon dioxide (water) at sea surface temperature (wet air); Partial pressure of carbon dioxide (water) at sea surface temperature (wet air), standard error; pH; pH, standard error; Potentiometric; Potentiometric titration; Respiration; Respiration rate, oxygen; Respiration rate, oxygen, per organic weight; Respiration rate, standard deviation; Respiration rate/ammonia excretion; Ruditapes decussatus; Salinity; Salinity, standard error; Single species; Size; Species, unique identification; Species, unique identification (Semantic URI); Species, unique identification (URI); Temperate; Temperature, water; Temperature, water, standard error; Treatment; Type
Type:
Dataset
Format:
text/tab-separated-values, 360 data points
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