reef-building organisms

Reef-building organisms are marine creatures that create the calcium carbonate structures known as coral reefs. The most well-known are corals, which form colonies of tiny, soft-bodied animals called polyps that secrete a calcium shell to build the reef over time. Other contributors include certain algae, like coralline algae, and marine worms, which add to the reef’s complexity and stability. These organisms work together, forming vibrant ecosystems that support diverse marine life. Reef-building organisms are crucial for maintaining ocean biodiversity, protecting coastlines from erosion, and supporting local economies through fishing and tourism.