The coral reefs of Singapore are located mainly in the islands south of Singapore. Contrary to the belief that our reefs have been permanently devastated, they still support rich marine life. It supports more than 250 species of hard corals from 55 genera, over 120 species of sponges, 120 species of reef fish and an undetermined number of gorgonians, nudibranchs and other invertebrates.
Each reef can be sub-divided into several zones: the reef flat, the reef crest and the reef slope. The shoreline gives way to the shallow reef flat that may vary in width and depth; at very low tides, some parts of the reef flat may be exposed. The reef crest is usually never exposed, and consequently, has the highest density of marine life. The reef slopes to the seabed; as you go deeper, not only will the density of marine organisms decrease, but the community of marine organisms changes to those that can adapt to the low-light conditions. The sea floors is usually silty or sandy, but where rocky surfaces appear, are usually festooned with sea whips and sea fans and colourful cave corals.
Singapore’s reefs are natural heritage that Singaporeans can truly call “uniquely Singapore”.