Sea urchins

In green sea urchins from the Baltic Sea, the spines appear to be vulnerable to ocean acidification, which might reduce the urchins’ protection against predators. Intestinal epithelia may [...]

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 [...]

Adult green sea urchins exposed to ocean acidification conditons for 56 days ate less food and had 67 percent less growth of their sex glands (gonads). (Laboratory study)

This study investigated changes in mineralization in 18 species of marine calcifiers, which were reared for 60 days in different levels of ocean acidification conditions. The results suggest that [...]

Under extreme ocean acidification conditions (pH 6.8), the egg production rates of copepods decreased significantly. For two species of sea urchins, fertilization rate of eggs decreased with [...]

Educational introduction to the chemistry and biological impacts of ocean acidification

Educational website about ocean acidification created by the Channel Islands National Marine Sanctuary Education Team.