Coral reefs are one of the most economically valuable and biologically diverse ecosystems on our planet. As a vital ecosystem, its key functions are essential to the earth. In terms of Biodiversity, Coral reefs are essential spawning, nursery, breeding, and feeding grounds for numerous organisms. The variety of species living on a coral reef is greater than in any other shallow-water marine ecosystems and is one of the most diverse on the planet. Coral reefs support more than 800 hard coral species and more than 4,000 species of fish.