Blue mussels from the Baltic Sea grew less when raised for seven weeks under ocean acidification conditions and with limited food algae. Corrosion of the internal shell surface occurred at a range of ocean acidification levels when food supply was low. When food supply was high, corrosion occurred only in ...
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Swimming performance of Atlantic cod was not impaired after they had lived under ocean acidification conditions for 4 or 12 months. They did not have different metabolic rates, critical swimming speeds, or aerobic scope compared to those that lived in non-acidified seawater. (Laboratory study)
Ocean acidification and/or warmer temperatures may affect immune response, parasite abundance and diversity, and bacterial infection of blue mussels. (Laboratory study)
Two dominant marine calcifying phytoplankton species, the coccolithophorids Emiliania huxleyi and Gephyrocapsa oceanica, produced less calcite under ocean acidification conditions. They also had more deformities and higher rates of incomplete development. The findings suggest that ocean acidification could slow down the production of calcium carbonate in the ocean. (Laboratory study) ...
Shell growth of blue mussels from the Baltic Sea decreased under ocean acidification conditions. Data suggest that the reduced shell growth under severe acidification did not result from metabolic depression but from increased cellular energy demand and nitrogen loss. (Laboratory study)
Body fluids of the northern sea urchin became acidified when the urchins lived in ocean acidification conditions for 5 weeks. (Laboratory study)
Shell growth or crystal microstructure of the ocean quahog did not change under different levels of ocean acidification conditions. (Laboratory study)
Sea urchin larvae were able to maintain the pH inside their cells under ocean acidification conditions. (Laboratory study)
Sea urchin larvae normally have alkaline conditions (pH 9.5) in their stomachs. When larvae were exposed to ocean acidification conditions, the pH of their stomachs decreased. This change could reduce the efficiency of digestion and trigger extra feeding to make up for it.
Sea urchins living in ocean acidification conditions for 45 days grew less. They were able to actively maintain the pH outside the cells in their bodies. (Laboratory study)