Effect and Risks of Ocean Alkalinity on Corals and Rhodolith Coralline Algae in the Pacific

This research project aims to advance our understanding of the potential benefits and risks of ocean alkalinity enhancement (OAE) using chemical addition of different dissolved minerals to coastal organisms.

The research will be conducted using laboratory and mesocosm experiments to study the effects of OAE on coral and crustose coralline algae physiology, functionality, calcification, and mineralogy. It will also examine whether thresholds of excess alkalinity may result in a switch from benefitting organisms to potentially harming them. The goal is to reduce uncertainties surrounding the co-benefits and risks of these approaches, particularly with ocean acidification and ocean-based carbon dioxide removal mitigation strategies.