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Thursday 8 November 2012

Date and the end of the Great Barrier Reef coral

Date and the end of the Great Barrier Reef coral


Australian marine scientists to develop land near the Palm Island in Queensland have discovered evidence of an historic coral destruction.Then, between 1920 and 1955, branching Acropora failed to recover.
Queensland University ARC Centre of Excellence for Coral Reef Studies of the coral community of scientists quickly eliminate human-made changes in water quality on the Great Barrier Reef corals demonstrates the potential link between loss.
Professor John CoECRS and UQ Pandolfi, it is evident that human activities on the Great Barrier Reef corals are involved in half of the recent loss of weight is added, the.
Destruction of large branching corals author grazing and agriculture in the 19th century near the end of the Burdekin River Basin took place in the vast expansion has been clearing land, GBR lagoon increase the amount of nutrients in the soil and causes, the alleviate CoECRS and UQ, Dr George Roff, a new research.
barrier can reduce the ability to bounce back. said. "he says.
Jian Xin, founder methods using radioisotope facility at the University of Queensland Zhao. They cyclones, floods and sea surface temperature during the period of record is associated with.
"... Our results mean increased European settlement in Queensland coast after sidelines with sediment and nutrient loading in coral communities undetected end historic," report the researchers in their paper.
The important thing to end this mass coral bleaching episodes in recent decades have occurred before, and the first detailed survey of the GBR coral launched in the 1980s.

And even more important, as we do not have our cores covering the last 1700 years by the time I got in an accident during the period of branching corals flourish -. Despite all the cyclones and natural influences that bear. "

Acropora corals in two places completely vanished, while one-third of Acropora coral Pavona no significant change in species, the researchers say the Caribbean parallels human impact was similar comments.

He said that on a global scale, our results where land use change in the Caribbean region from 1960 Acropora corals in reefs near the coast have been involved in a significant reduction from the current report. '

The coral survey period was present before the effective coral records began, researchers suggest that 'unseen' shifts may lead to the possibility of significantly - research has taken a real possibility. In other words, GBR degraded it appears to be today's eyes.

"We know that some places in the area, branching Acropora is currently the dominant reef builder is why it was apparent that some inshore reefs question is flexible, while others failed to deal with failure." Dr. Roff said.

. "Professor Pandolfi said.

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