The total disappearance of coral promised scholars canceled?

Growth in greenhouse gases in the atmosphere leads to an increase in the amount of gas dissolved in the ocean water. This leads to an increase in the number of bicarbonate ions, reducing the number of carbonate ions and increased acidity. Scientists have long known that increasing ocean acidity adversely affect corals and shells of marine animals.

A team of scientists led by University of California, Dr. Stephen Comeau decided to explore ways to preserve coral and shells. Corals Porite brought from French Polynesia, the scientists placed in special laboratory pools. In the laboratory, scientists have recreated environment for corals close to their natural habitat. Then in each of the nine pools with coral scientists have created distinct conditions of acidity, and watched how this will affect the calcium content in the samples.

To simulate the change of the time of day in the laboratory 12 hours turn on and off lights. The scientists found that at night to build their skeletons of corals using carbonate ions, and in the afternoon — as carbonate and bicarbonate. "This is a good omen. Perhaps, ocean acidification will be for coral is not as fatal, "- says Dr. Comeau.

If the findings of scientists are correct, even substantial oxidation of the oceans will not mean extinction of corals, which heralded the previous work of scientists.
Category: Factors and accident

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