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A coral reef is an underwater ecosystem characterized by reef-building corals. Reefs are formed of colonies of coral polyps held together by calcium carbonate . [ 1 ] Most coral reefs are built from stony corals , whose polyps cluster in groups.
This coral reef has more biodiversity than in any of the waters of India. It is one of only a few pristine systems in Sri Lanka. Belize Barrier Reef: Belize: This is the second biggest coral reef system on Earth, the largest being the Great Barrier Reef.
The following is a list of marine ecoregions, as defined by the WWF and The Nature Conservancy. The WWF/Nature Conservancy scheme groups the individual ecoregions into 12 marine realms, which represent the broad latitudinal divisions of polar, temperate, and tropical seas, with subdivisions based on ocean basins.
While it covers only 1.6% of the planet's oceanic area, the region has 76% of all known coral species in the world. As a habitat for 52% of Indo-Pacific reef fishes and 37% of the world's reef fishes, it contains the greatest diversity of coral reef fishes in the world [17] More than 3,000 species of bony fish are distributed over more than 90% of the Coral Triangle.
The move is vital for protecting at least 25% of the world's marine species and over a billion people who depend on healthy coral reefs. Over 40 countries pledge to raise $12 billion to help coral ...
Canton Island typifies the isolated coral atolls dotting the Pacific Ocean. The Structure and Distribution of Coral Reefs, Being the first part of the geology of the voyage of the Beagle, under the command of Capt. Fitzroy, R.N. during the years 1832 to 1836, was published in 1842 as Charles Darwin's first monograph, and set out his theory of the formation of coral reefs and atolls.
Many scientists think that at just 1.2C of warming above preindustrial level, the world has already passed a key threshold for coral reef survival. They expect between 70% and 90% of the world's ...
Coral reefs of the United States (1 C, 10 P) V. Coral reefs of Venezuela ...