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What is the threatened status of the world's coral reefs?

  • 58% of the world's reefs are at moderate to high risk from human disturbance

  • Overexploitation of marine resources (including destructive fishing practices) and coastal development are the greatest threats

Stony Corals at Bluff Island, Sai Kung
Percentage of Reefs at High, Medium and Low Risk (Bryant et al, 1998)
  • Reefs in Southeast Asia are the most disturbed

  • More than 80% of them are at risk and over half (56%) are at high risk

  • Overfishing, destructive fishing practices, sedimentation, and pollution associated with coastal development are the biggest threats

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Threatened coral reefs in East Asia
Threatened coral reefs in East Asia (Bryant et al, 1998)
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Last Review Date : 22 March 2017