| On a global scale, coral bleaching is the largest threat to the world's coral reefs. |
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| Because of climate change, coral bleaching events are happening more often. |
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| Dr. Donner studies the frequency of coral bleaching events, their consequences and the link to unusually warm oceans. |
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| Recent aerial surveys of Australia's Great Barrier Reef find massive coral bleaching. |
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| They are affected by coral bleaching, they're affected by crown-of-thorn starfish, and a lot of things that make coral reefs sick makes the staghorn coral sick first. |
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| In particular, there is likely to be a reduction in water for southern and eastern Australia, with more fires and heatwaves, fewer frosts, less snow and more coral bleaching. |
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| For example, the particularly strong El Nino phenomenon in 1997-1998 caused coral bleaching in tropical oceans globally. |
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| After extensive aerial surveys, scientists in a joint survey of the GBR this year discovered that coral bleaching has affected more than 60 per cent of the reef system. |
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| Such loss and damage to coral reefs is in addition to the problems they are facing from coral bleaching as a consequence of rising sea surface temperatures. |
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| This phenomenon resulted in massive coral bleaching, leading to a 99 per cent decrease in some coral species and an economic loss estimated at 91 million United States dollars. |
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| Seven years on, unusually warm waters caused even worse coral bleaching, this time in the Caribbean where it was also a record year for hurricanes. |
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| Deteriorating coral reefs, the nurseries for certain fish stocks, are being severely damaged by warming waters, coral bleaching and ocean acidification. |
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| Once coral bleaching begins, corals tend to continue to bleach even if the stressor is removed. |
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| In 2005 the Rainbow Warrior II ran aground on and damaged the Tubbataha Reef in the Philippines while inspecting the reef for coral bleaching. |
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| Hence, these coral reefs are not affected by coral bleaching caused by rise in temperature as elsewhere in the indopacific coral sea. |
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| Other threats include hurricanes, along with global warming and the resulting increase in ocean temperatures, which causes coral bleaching. |
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| Consider, for example, the implications of global climatic change for coral bleaching and consequent destruction of a significant marine ecotourism resource. |
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| The loss of Symbiodinium from the host is known as coral bleaching, a condition which leads to the deterioration of a reef. |
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| Climate change is considered to be the main threat to coral reefs, mainly due to mass coral bleaching associated with high sea temperatures which have already caused permanent damage on a global scale. |
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| Mass coral bleaching events due to elevated ocean temperatures occurred in the summers of 1998, 2002 and 2006, and coral bleaching is expected to become an annual occurrence. |
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| The phenomenon is known as coral bleaching. |
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| More than 60 countries experienced coral bleaching. |
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| Our coral reefs are slowly dying through coral bleaching, we are witnessing changes to fish stocks and we face the increasing threat of more severe cyclones. |
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| Adverse affects on coastal wetlands and coastal fisheries, e.g. coral bleaching events are expected to increase and mangroves are expected to decline in many coastal zones. |
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| Coral bleaching is another manifestation of the problem and is showing up in reefs across the planet. |
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