Coral reefs heal after 2004's deadly tsunami

'Washed away'
Siti Hasnaini, 40, who still lives with her two sons and husband in a temporary shelter in Aceh, prayed "for my daughter who was washed away with my house."

In India, where thousands also perished, interfaith prayers and a moment of silence were held. The Sri Lankan government declared two minutes of silence for the 35,000 people killed there as well as other victims of natural disasters.

The healing trend embraced by those devastated by the tsunami has extended to the reefs with communities responding to calls to protect them from illegal fishing, pollution and coastal development.

Campbell said citizens have been particularly responsive in Aceh where fishermen have stopped using illegal techniques like dynamite and villagers have transplanted corals into areas that were hardest hit.

"The recovery, which is in part due to improved management and the direct assistance of local people, gives enormous hope that coral reefs in this remote region can return to their previous condition and provide local communities with the resources they need to prosper," Campbell said.

Ove Hoegh-Guldberg, a reef expert from the University of Queensland in Australia who did not take part in the study, said the findings were not surprising since corals typically will recover if not affected by fishing and coastal development.

"The mechanical damage from the tsunami left a whole bunch of shattered corals on the bottom of the sea," Hoegh-Guldberg said.

Making a comeback
"Left alone, these things can quickly grow back into what looks like a coral reef in a short time," he said. "We are seeing similar things around the southern Great Barrier Reef where reefs that experience major catastrophe can bounce back quite quickly."

John Bruno, a reef expert from the University of North Carolina at Chapel Hill, agreed saying it shows coral reefs are able to recover after severe disturbances.

"There has been so much bad news about coral decline lately, and the threats to corals seem to increase every year. It is important to recognize that these invaluable ecosystems are not lost," he said in an e-mail interview. "We just have to implement some common sense policies locally and substantially reduce emissions of greenhouse gases at a global scale."

More on tsunami | Indonesia

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