Studies have found that some corals themselves are resistant to ocean acidification damage.

A new australian study shows that some species of corals can regulate their calcium levels according to the acidity of the sea to resist the damage caused by ocean acidification and improve survival rates.
" ocean acidification means that the pH of seawater decreases as carbon dioxide gas emitted by human activities is absorbed by seawater. Thomas DeCarlo, a researcher at the Coral Reef Research Center of the Australian Research Council, which led the
research, told Xinhua in an interview Tuesday. Lower
pH indicates that the acidity is stronger. The main component of
coral bones is calcium carbonate, and as the acidity of sea water increases, the chemical composition of seawater also changes, which can affect the calcium content of coral bones, making it impossible to grow properly.
" either coral bones become smaller or consume more energy as the bones grow.
," De Carlo said.
in the latest study, De Carlo and his team placed two different types of coral in water at three pH levels and used a new laser technique to irradiate the bones of corals to analyze their chemical composition, which could help researchers determine the calcium content of coral bones. "We found that twiged antler corals increasetheird calcium content in water with lower pH values, offsetting the negative effects of increased acidity, with bone growth rates the same as in less acidic water,"
.
but Yang's axis hole corals can not increase their calcium content, in the high acidity of the water bone growth rate is slower.
," De Carlo said.
experimental results show that some coral species, such as twiged antler corals, have an intrinsic calcium content regulation mechanism that can help them resist ocean acidification in order to survive in a deteriorating living environment.
While the results offer a glimmer of hope for corals to resist changes in the environment, researchers are concerned about the cost of such changes, especially whether corals' resistance to environmental changes such as rising temperatures will decline.
papers have been published in the Proceedings of the Proceedings of the Proceedings of the Royal Society of Biology.
Source: Xinhua.com