great barrier reef tagged posts

Coral bleaching threat rises in the Great Barrier Reef

Great Barrier Reef

Australian authorities have raised the level of threat due to coral bleaching in theGreat Barrier Reef after an increased loss of corals was detected north of the reef, its most unpolluted zone, the media reported on Tuesday.

 “The bleaching we are seeing on the reef at the moment is concerning, and this just re-emphasises how important it is that we urgently cut greenhouse gas emissions,” said David Wachenfeld, Reef Recovery Director at the Great Barrier Reef Marine Park Authority (GBRMP).

The Great Barrier Reef, declared a Heritage Site by Unesco, extends up to 2,300 km in northeast Australia and is the world’s largest coral system.

According to GBRMPA, the regions most affected by the bleaching and that has aggravated in the last two weeks, is located close to the Lizard Island.

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Late-season cyclone may ease coral bleaching threat

Coral Reef

The threat of major coral bleaching in the Great Barrier Reef looks to be receding with the onset of stormier weather including the formation of the first tropical cyclone of the season likely to cross the coast. Sea temperatures are warmer than average from about Townsville all the way down the coast to the NSW-Victorian border, creating one of the components for coral stress.

Unusually calm conditions over much of the Great Barrier Reef have also contributed to setting up possible bleaching events as clearer water lets more sunlight reach the sea floor. During bleaching events, corals expel the algae that provide as much as 90 per cent of the energy they need to grow and reproduce, killing some of them.

“Heat makes light toxic,” Andrew Baird, a coral reef ecologist at James Cook Univers...

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Great Barrier Reef stands to lose 90% of living coral

Great Barrier Reef

Great barrier reef can decline to less than 10% if ocean warming continues. A new study has revealed that Australia’s Great Barrier Reef could lose 90 percent of its living corals if ocean warming continues. A new study that explores the short- and long-term consequences of environmental changes to the reef shows that live coral coverage on Australia’s Great Barrier Reef could plummet to less than 10% if ocean warming continues.The study aims to project the composition of the future Great Barrier Reef under current and future environmental scenarios.

Researchers at James Cook University found that in the long-term consequences indicate that a moderate warming of 1-2 degrees Celsius can result in coral cover declining to less than 10%, the tipping point for reef growth...

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‘Lost world’ of coral on the Great Barrier Reef

great barrier reef

Dozens of new types of coral have been identified in a remote section of the Great Barrier Reef and it has been described as a ‘lost world’ by researchers. Scientists from the Australian Institute of Marine Science (AIMS) and Torres Strait Regional Authority have been studying the area of Torres Strait for the last three years.

Their findings were presented at National Environmental Research Program conference in Cairns last week, reports the Cairns Post.

The researchers were looking at five different sites from central to eastern Torres Strait and they discovered 91 new species of coral in the region.

Dr Scott Bainbridge, from AIMS, said: ‘These reefs are in extremely good condition.

‘They are managed by the local communities, and potentially these may also be important to southe...

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