Algal calcification

Algal calcification is a process where certain algae, called coralline algae, produce calcium carbonate—a mineral similar to limestone—within their cell walls. This process strengthens the algae’s structure, allowing it to serve as a form of scaffolding on coral reefs. It also contributes to the overall buildup of calcium carbonate in marine environments, helping to form and maintain reef structures. Factors like ocean chemistry, temperature, and acidity influence calcification rates. This process is vital for reef health, providing habitat for marine life and playing a key role in the global carbon cycle.