Coral reefs are one of the marine ecosystems formed from calcium carbonate structures, produced by reef-building corals (hermatypic corals).
The corals consist of colonies of small marine organisms called coral polyps, which live in symbiosis with algae called zooxanthellae. This symbiotic relationship is essential because the algae provide energy through photosynthesis, while the coral polyps provide protection for the algae.
Coral reefs are a major habitat for a wide variety of marine life, including fish, molluscs, crustaceans, and many other species. Although they cover less than 1% of the world’s ocean floor, they support more than 25% of all marine species, making them one of the most biodiverse ecosystems in the world.
In Indonesia, coral reefs are found in various waters, including:
Raja Ampat, West Papua: known as one of the areas with the best coral reef diversity in the world.
Wakatobi, Southeast Sulawesi: part of the World’s Coral Triangle with extraordinary underwater beauty.
Bunaken National Park, North Sulawesi: a popular snorkeling and diving destination with stunning coral reef views.
Alor, East Nusa Tenggara: known for its beautiful coral reefs and endemic marine species.
Source: https://yiari.or.id