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25 Sep 2012: Coral Biodiversity Hotspot
Is Found in Western Indian Ocean

The western Indian Ocean, especially the waters between Madagascar and Africa, contain one of the highest levels of coral diversity worldwide, with 369 coral species identified in a recent study and more

In Fight to Save Coral Reefs,
Finding Strategies that Work

Interview with Coral Reef Expert Nancy Knowlton
In four decades as a marine biologist, Nancy Knowlton has played a key role in documenting the biodiversity of coral reefs and the threats they face. In an interview with Yale e360, she highlights conservation projects that offer hope of saving these irreplaceable ecosystems.
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still to be identified. Scientists say the western Indian Ocean may contain as much coral biodiversity as Australia’s Great Barrier Reef, though not as much as the world’s richest region for corals, the so-called coral triangle in Southeast Asia. Reporting in the journal PLoS ONE, David Obura, a scientist with the Group Coastal Oceans Research and Development in the Indian Ocean, said that 10 percent of the species are found only in the western Indian Ocean. He said the northern end of the Mozambique Channel, which sits between Madagascar and mainland Africa, contains roughly 250 to 300 coral species. Meanwhile, Australian scientists report that water temperatures around the Great Barrier Reef have increased steadily in the last 25 years, in some places rising as much as .5 degrees C. Such increases can contribute to coral bleaching, which can lead to mass coral die-offs.


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