Effects of ocean acidification on the immune respone of the blue mussel Mytilus edulis
Blue mussels in acidified seawater for 32 days had suppressed immune responses. (Laboratory study)
Ocean acidification disrupts induced defences in the intertidal gastropod Littorina littorea
Normally, common periwinkles produce thicker shells in the presence of crab predators. This study found that they did not do so when living in acidified seawater for 15 days. The snails apparently compensated for their lack of defensive shell-building by moving more to avoid the crabs. In a ...
Effects of increased CO2 on fish gill and plasma proteome
Health of Atlantic halibut may be affected by moderate ocean acidification—by itself and combined with warmer temperatures.
Calcification of the Arctic coralline red algae Lithothamnion glaciale in response to elevated CO2
The calcium carbonate skeleton of a coralline red alga was estimated to become highly vulnerable to dissolving at an aragonite saturation state between 1.1 and 0.9, which is projected to occur in some parts of the Arctic between 2030 and 2050 if carbon emissions follow "business as usual" scenarios. (Laboratory ...
The effect of chronic and acute low pH on the intracellular DMSP production and epithelial cell morphology of red coralline algae
The release of dimethylsulphoniopropionate (DMSP) by marine algae has major impacts on the global sulphur cycle and may influence local climate through the formation of dimethylsulphide (DMS). However, the effect of global change on DMSP/DMS (DMS(P)) production by algae is not well understood. This study examined the effect of low pH ...
Shell condition and survival of Puget Sound pteropods are impaired by ocean acidification conditions
Survival of pteropods in Puget Sound, Washington, may not be greatly affected by present ocean pH levels and those projected for the near future, although their shells may be more prone to dissolving. (Laboratory study)
Effects of CO2-induced ocean acidification on physiological and mechanical properties of the starfish Asterias rubens
The common sea star (Asterias rubens) appeared to withstand the effects of reduced seawater pH, at least for short-term exposures of 15 to 27 days, with no significant changes in the strength of its tube feet or the RNA/DNA ratio of its tissues. (Laboratory study)
Evolutionary potential of marine phytoplankton under ocean acidification
Marine phytoplankton have many characteristics, such as rapid cell division rates and large population sizes, that may enable them to adapt to ocean acidification and other types of global change. This paper reviews findings from previous studies to evaluate whether this adaptation is likely to occur, and it stresses the ...
Impact of ocean acidification on a key Arctic pelagic mollusc (Limacina helicina)
Calcification rate of pteropods dropped 28 percent at pH levels projected for 2100. This result supports the concern for the future of pteropods in a high-CO2 world, as well as of those species dependent upon them as a food resource. (Laboratory study)
Larvae of the pteropod Cavolinia inflexa exposed to aragonite undersaturation are viable but shell-less
When larvae of Mediterranean pteropods were cultured in pH 7.82 water, they had malformations and less shell growth. At pH 7.51, the larvae did not make shells but survived and showed normal development. In a natural setting, the smaller shells or lack of shells would have both ecological and biogeochemical ...
