NOONAN ET AL. (2018)Ocean acidification will alter not only the composition of coral reef communities but also their metabolism as a group, according to a recent study published in PLOS One May 30. Researchers cultivated 90 coral reef communities on PVC tiles near volcanic vents seeping carbon dioxide into the Pacific Ocean near Papua New Guinea. They observed these communities grow less calcified in more acidic environments, gradually being swapped out for noncalcifying algae. Rates of photosynthesis and respiration increased in keeping with these changes in coral composition.
S.H.C. Noonan et al., “Ocean acidification alters early successional coral reef communities and their rates of community metabolism,” PLOS One, doi:10.1371/journal.pone.0197130, 2018.