The current fraction of total anthropogenic CO2 emissions stored in the ocean appears to be about one-third of the long-term potential.
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This article provides an overview of how rivers, which tend to be acidic compared to the ocean, affect shellfish, with a focus on the Gulf of Maine.
Growth rate and biomass of a seaweed (the red alga Chrondrus crispus) increased only when ocean acidification was accompanied by warmer temperatures. Photosynthesis was reduced under ocean acidification conditions. (Laboratory study)
King scallops in Norway clapped their shells (an escape response) with less force after being exposed to ocean acidification conditions for at least 30 days. The number of claps was unchanged, however. Ocean acidification also narrows the thermal tolerance range of scallops, resulting in elevated vulnerability to temperature extremes. These ...
Spider crab larvae that developed under ocean acidification conditions had higher metabolic rates. However, the larvae seem to be able to compensate for higher metabolic costs as their development time and survival was not affected. (Laboratory study)
Ocean acidification levels predicted for 2100 (seawater pH 7.8) did not significantly affect growth, arm regeneration, biochemical composition, or righting behavior of a sea star. (Laboratory study)
Ocean acidification conditions suppressed the metabolism of an Antarctic pteropod by approximately 20 percent in some instances. However, the effect on metabolism depended on abundance of phytoplankton in the region and the pteropods' baseline level of metabolism. Pteropod populations may be compromised by climate change, both directly by acidification-related suppression ...
Ocean acidification conditions reduced the amount of dissolved iron taken up by diatoms and coccolithophores. Iron is a limiting nutrient in large oceanic regions, and the ongoing acidification of seawater is likely to increase the iron stress of phytoplankton populations in some areas of the ocean. (Laboratory study)
Reproduction and larval development of two copepod species were sensitive to extreme ocean acidification conditions. The hatching rate tended to decrease, and mortality rate of young copepods tended to increase. (Laboratory study)
Ocean acidification conditions did not affect survival, body size, or developmental speed of a copepod species during any of its life stages. Egg production and hatching rates also did not change among generations of females exposed to ocean acidification conditions. Thus, this copepod appears more tolerant to ocean acidification than ...