Ocean acidification differentially affects the metabolome of crustose coralline algae, but uniformly reduces coral settlement.

We conducted an ex-situ experiment to investigate the effects of ocean acidification (OA) on crustose coralline algae (CCA) growth and calcification over a period of 54 days. Two CCA species were studied representative. We measured marginal growth, net calcification as well as tissue mortality, palling.