What might be the correlation between the clarity of the lake water and the occurrence of the full body plate trait?

The clarity of lake water is affected by the amount of phytoplankton. There is an exchange of Carbon dioxide and oxygen between the atmosphere and the oceans in the carbon cycle. An increase in atmospheric carbon dioxide could lead to an increase of the carbon dioxide absorbed by the oceans. Accordingly, this increases the pH level of the ocean waters which leads to the slow growth of phytoplankton. The clarity of the waters would happen since the increase with pH level would lead to low plankton growth.