Wave action, currents, tides, temperature and other factors create many different zones found in a coral reef ecosystem
CORAL REEF ECOSYSTEMS SUPPORT FOUR DIFFERENT COMMUNITIES
CORAL REEFS (red dots above) occur in the tropics and subtropics between 30 degrees North and South latitude
Coral island atoll
Charles Darwin visited Tuamotu in French Polynesia on the H.M.S. Beagle in 1835 and described the formation of coral reefs:
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