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Australia's Great Barrier Reef Recovering from Coral Bleaching

by Julia Samuel on  September 12, 2016 at 3:04 PM Environmental Health   - G J E 4
Australia's Great Barrier Reef has almost fully recovered from the worst coral bleaching ever known in recent history, authorities said.
Australia's Great Barrier Reef Recovering from Coral Bleaching
Australia's Great Barrier Reef Recovering from Coral Bleaching
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A three-minute video clip recorded on September 2 by Quicksilver Group, a private tour operator specialising in Great Barrier Reef tours in Queensland showed several international and local tourists attesting to that fact, Xinhua news agency reported.

‘When water is too warm, corals will expel the algae living in their tissues causing the coral to turn completely white. This is called coral bleaching.’
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Quicksilver Group's environment and compliance manager and marine biologist Doug Baird said coral on Agincourt Reef number three off Port Douglas at the Great Barrier Reef was "well in the process recovery" from a bleaching event six months ago.

"It was a very robust reef going into the bleaching event. It was healthy, the water quality was good out here. In fact, it was the best-managed reef system anywhere on the planet. This builds up the resilience of the reef which gives it that opportunity under these natural events to actually cope and recover," Baird said.

Great Barrier Reef Marine Park Authority tourism and stewardship director Roger Beeden said he was aware of reports Agincourt Reef coral was recovering.

He said in-water surveys to be conducted in October would enable scientists to closely monitor the recovery and survival rates across the Great Barrier Reef Marine Park.

"The extent of recovery for heat-affected corals will vary across the marine park, and will largely depend on how stressed the corals were locally," Beeden said.

"On the most resilient reefs and in ideal circumstances, bleached corals can regain their colour within a period of weeks to months once water temperatures return to normal."

"However, corals experiencing chronic poor water quality or other stressors are unlikely to recover within these short time frames and recovery will be impeded," he added.



Source: IANS
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