When larvae of blue mussels were kept in ocean acidification conditions predicted for 2100 (pH 7.6) there was no marked effect on fertilization, development, abnormalities, or feeding. However, although the mussel larvae were able to form shells, after two months of exposure they were 28 percent smaller than larvae raised ...

Adult copepods living in acidified water had lower egg production and hatching success. (Laboratory study)

Ocean acidification conditions interfered with the chemoreception, or "smelling", that hermit crabs use to find shells and prey. The hermit crabs moved less, had lower flicking rates of their antennae (a ‘sniffing’ behavior in decapods), and were less successful in locating the odor source. (Laboratory study)

Hermit crabs living in highly acidified seawater (pH 6.8) were less likely to leave a suboptimal shell in favor of an optimal shell. Those that did change shells took longer to do so. Crabs in acidified water also moved less and had lower flicking rates of their antennae (a ‘sniffing’ ...

A species of burrowing shrimp was able to tolerate ocean acidification conditions (pH 7.64) for 35 days. At a lower pH of 7.35, individuals experienced extracellular acidosis, suggesting they had little or no buffering capacity, although there was no evidence of negative impacts on metabolism, osmotic regulation, shell mineralogy, growth, ...

While ocean acidification may have some negative effects on the eggs of amphipods, exposure to low-salinity water is likely to affect the eggs more, based on ocean acidification trends projected for the next 300 years. (Laboratory study)

Ocean acidification did not have a major impact at the cellular level in the gill epithelia of green crabs. (Laboratory study)

In ocean acidification conditions (pH 7.7) embryos of an intertidal barnacle developed more slowly. Survival of adult barnacles dropped by 22 percent, and the mineral structure of adult shells changed. (Laboratory study)

Post-larvae of an intertidal barnacle (Elminius modestus) grew more slowly under ocean acidification conditions, but there were no impacts on its shell calcium content and survival by either ocean acidification or warmer temperature. were observed in high CO2 but there were no impacts on shell calcium content and survival by ...

Ocean acidification (pH 7.7) impaired growth and development of an intertidal barnacle (Semibalanus balanoides), but warmer temperature (+4 °C) did not. The mineral composition of the shells did not change with either ocean acidification or warmer temperature. The combination of reduced growth and maintained mineral content suggests that the barnacles ...