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Latest Coral bleaching Stories

2012-04-02 11:18:43

A team of international scientists working in the central Pacific have discovered that coral which has survived heat stress in the past is more likely to survive it in the future. The study, published today in the journal PLoS ONE, paves the way towards an important road map on the impacts of ocean warming, and will help scientists identify the habitats and locations where coral reefs are more likely to adapt to climate change. "We're starting to identify the types of reef environments...

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2012-03-12 10:14:10

As global warming heats up the Earth´s oceans, one ecosystem stands to be severely threatened: Coral reefs. However, new research has given scientists to be hopeful about the fate of these coral reefs. An international team of researchers has studied a coral population in South-East Asian waters that had survived a bleaching event. What was significant about this reef was that it had also survived another bleaching event 12 years earlier in 1998. The researchers published their...

2012-01-20 11:45:08

Recent experiments conducted at the Australian Institute of Marine Science (AIMS) produced striking results, showing for the first time that corals hosting a single type of “zooxanthellae” can have different levels of thermal tolerance — a feature that was only known previously for corals with a mix of zooxanthellae. Zooxanthellae are algal cells that live within the tissue of living coral and provide the coral host with energy; the relationship is crucial for the...

Leaders Urged To Curb Climate Vulnerability
2011-11-28 05:54:49

Representatives of the world´s governments meeting in Durban this week have been advised by scientists that urgent action is needed to reduce the vulnerability of communities worldwide likely to be worst affected by the impacts of climate change. In a new scientific paper and book, leading marine researchers Dr Josh Cinner of the ARC Centre of Excellence for Coral Reef Studies (CoECRS) and James Cook University, and Tim McClanahan of the Wildlife Conservation Society (WCS) propose a...

Corals Can Sense What's Coming
2011-11-19 04:42:31

Australian scientists have thrown new light on the mechanism behind the mass death of corals worldwide as the Earth´s climate warms. Coral bleaching, one of the most devastating events affecting coral reefs around the planet, is triggered by rising water temperatures. It occurs when the corals and their symbiotic algae become heat-stressed, and the algae which feed the corals either die or are expelled by the coral. There have been seven major bleaching events globally in the past...

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2011-08-15 06:55:48

Wildlife Conservation Society leads global assessment showing where climate stresses on reef systems will be and places to focus management Marine researchers from the Wildlife Conservation Society and other groups have created a map of the world's corals and their exposure to stress factors, including high temperatures, ultra-violet radiation, weather systems, sedimentation, as well as stress-reducing factors such as temperature variability and tidal dynamics. The study, say the authors,...

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2011-07-25 07:10:00

Climate change and acidifying ocean water are likely to have a highly variable impact on the world's coral reefs, in space, time and diversity, international coral scientists cautioned recently. The picture that is emerging from studies of past coral extinctions and present impacts on today's reef systems is complex and subtle and will demand much more sophisticated management to preserve reefs intact, the team of scientists said in a paper in the international journal Science. "New research...

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2011-03-23 11:55:10

Wildlife Conservation Society researchers urge protection and management for Indian Ocean coral reefs most likely to persist into future Researchers from the Wildlife Conservation Society have developed a "stress test" for coral reefs as a means of identifying and prioritizing areas that are most likely to survive bleaching events and other climate change factors. The researchers say that these "reefs of hope" are priorities for national and international management and conservation action....

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2011-02-24 09:10:00

Warming seas, rising levels of atmospheric carbon dioxide and other factors such as over-fishing could wipe out the world's coral reefs by 2050 unless urgent action is taken to counteract these threats, environmental advocates warned on Wednesday. More than three quarters of all reefs are currently threatened, said advocates from U.S. government and non-governmental organizations while releasing the report entitled, "Reefs at Risk Revisited." Swift action must be taken to protect these...

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2011-01-11 12:35:00

The Edge Coral Reefs project announced this week that it has identified 10 of the most at-risk coral species for protection. Conservationists have unveiled plans to preserve and protect the world's most important species of coral, helping to fight increasing threats that they say will lead to the species being "functional extinct" within decades. Scientists at the Zoological Society of London (ZSL) lead the project, which has identified 10 coral species in most urgent risk of becoming...