‘Teeming With Life’: New Hope For Great Barrier Reef As Island Shows Remarkable Coral Growth

  • Date: 02/07/19
  • ABC News

At a time when portions of the Great Barrier Reef are being devastated by coral decline, Southern Cross University doctoral researcher Kay Davis has found an island near Gladstone has experienced remarkable coral growth.

PHOTO: Southern Cross University doctoral researcher, Kay Davis, found coral at One Tree Island has experienced growth. (Supplied: Kay Davis)

One Tree Island was lashed by Cyclone Hamish in 2009, destroying much of the island’s coral.

In the five years following the cyclone, no metabolic recovery was detected on the reef and by 2014 calcification of the coral had declined by 75 per cent.

But things changed dramatically between 2014 and 2017, when Ms Davis and her team at the National Marine Science Centre found the coral system calcification increased four-fold.

“We found that the coral ecosystem has completely recovered from this cyclone event after eight years,” Ms Davis said.

“It wasn’t what we were expecting at all.”

The new research was published this month in Frontiers in Marine Science open-source journal with Ms Davis as the lead author.

Ms Davis had expected the declining health of the reef to continue due to ocean acidification inhibiting coral recovery.

Instead the coral is doing better now than it was when it was first studied in the 1970s.

“Not only is calcification of the reef recovering, there was a visible increase in the amount of coral as well; with coral cover increasing by 30 to 40 per cent.”

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