Biological effects of OCA

Calcification rates of the blue mussel and the Pacific oyster decline with increasing ocean acidification. Mussel and oyster calcification may decrease by 25 percent and 10 percent, respectively, [...]

When a coralline alga was exposed to both ocean acidification and solar UV radiation, its growth, photosynthesis, and calcification rates were greatly reduced, compared to when it was exposed [...]

A coralline alga had reduced calcification in ocean acidification conditions. (Laboratory study)

This study investigated the possible effects of ocean acidification on the calcareous skeleton of a Mediterranena bryozoan by transplanting live and dead colonies into an area of natural volcanic [...]

Four species of intertidal brown seaweeds increased their uptake of carbon dioxide (CO2) as ambient CO2 concentration increased, while one other species did not. The amount of increased CO2 [...]

Four species of pteropods from the tropical Pacific Ocean that naturally migrate into low-oxygen waters were not adversely affected when grown under ocean acidification conditions. However, [...]

Intracellular concentration of DMSP remained unaffected in two macroalgae species (Ulva lactuca and U. clathrata) under ocean acidification conditions, but significant differences in [...]

Exposure of Atlantic herring larvae to ocean acidification conditions resulted in stunted growth and development, poorer condition, and severe tissue damage in many organs. The degree of damage [...]

Deep-water prawns (Pandalus borealis) exposed to severely acidified seawater (pH 6.86) for 16 days were able to compensate by accumulate buffering bicarbonate ions at levels comparable to those [...]

This study showed the effects of ocean acidification on ecosystems at coastal sites where volcanic CO2 vents lower the pH of the water. Along gradients of normal pH (8.1–8.2) to lowered pH (mean [...]