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A coral reef is an underwater ecosystem characterized ... are the most important factor causing the great diversity and high biomass of the organisms in coral reefs. ...
In 1998, 16% of the world's reefs died as a result of increased water temperature. [97] Approximately 10% of the world's coral reefs are dead. [98] [99] [100] About 60% of the world's reefs are at risk due to human-related activities. [101] The threat to reef health is particularly strong in Southeast Asia, where 80% of reefs are endangered. [102]
Coral reef fish are fish which live amongst or in close relation to coral reefs. Coral reefs form complex ecosystems with tremendous biodiversity . Among the myriad inhabitants, the fish stand out as colourful and interesting to watch.
Yellow longnose butterflyfish browsing on coral polyps. A corallivore is an animal that feeds on coral.Corallivores are an important group of reef organism because they can influence coral abundance, distribution, and community structure.
Coral reefs are one of the most well-known marine ecosystems in the world, with the largest being the Great Barrier Reef. These reefs are composed of large coral colonies of a variety of species living together. The corals form multiple symbiotic relationships with the organisms around them. [7]
A variety of biotic reef types exists, including oyster reefs and sponge reefs, but the most massive and widely distributed are tropical coral reefs. [1] Although corals are major contributors to the framework and bulk material comprising a coral reef, the organisms most responsible for reef growth against the constant assault from ocean waves ...
Coral reefs thrive in nutrient-poor waters on high-energy shorelines that are agitated by waves. They are underwater ecosystem made up of colonies of tiny animals called coral polyps. These polyps secrete hard calcium carbonate skeletons that builds up over time, creating complex and diverse underwater structures. These structures function as ...
The International Hydrographic Organization defines the limits of the Coral Sea as follows: [1]. On the North. The South coast of New Guinea from the entrance to the Bensbak River (141°01'E) to Gado-Gadoa Island near its Southeastern extreme (), down this meridian to the 100 fathom line and thence along the Southern edges of Uluma (Suckling) Reef and those extending to the Eastward as far as ...