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Tag:reef threats

Blue branching staghorn coral on a Philippine reef — the type of coral most targeted by crown-of-thorns starfish during outbreaks

Crown-of-Thorns Starfish: A Growing Threat to Philippine Coral Reefs

Clarisa Strohmeyer November 7, 2026

Conservation

Crown-of-thorns starfish are among the most destructive natural threats to coral reefs in the Philippines and across the Coral Triangle. Learn what causes outbreaks, how they damage reefs, and what communities and scientists are doing to protect Philippine coral ecosystems.