Mangroves provide protected nursery areas for juvenile reef fishes, crustaceans, and molluscs. They also provide a feeding ground food for a multitude of marine species.
Many organisms find shelter either in the roots or branches of mangroves.
Mangrove branches are nesting areas for several species of coastal birds. The root systems harbor organisms that trap and cycle nutrients, organic materials and other important chemicals. Mangroves also contribute to higher water quality by stabilizing bottom sediments, filtering water and protecting shorelines from erosion. They protect reefs from land runoff sedimentation. Conversely, coral reefs protect mangroves and seagrasses from erosion during heavy storms and strong wave action.