Biogeochemical feedbacks from benthic metabolism have been hypothesized as a potential mechanism to buffer some effects of ocean acidification on coral reefs. The article in JGR-Oceans by DeCarlo et al. demonstrates the importance of benthic community health on this feedback from Dongsha Atoll in the South China Sea.
Takeshita Y., in press. Understanding feedbacks between ocean acidification and coral reef metabolism. Journal of Geophysical Research: Oceans. Article (subscription required).