CCTV.com - CNTV English - CCTV News

Poor water quality affects a quarter of Great Barrier Reef: Australian study

07-29-2010 09:30 BJT

BRISBANE, July 28 (Xinhua) -- Poor water quality is affecting almost a quarter of the Great Barrier Reef in Australia, a new study revealed on Wednesday.

The 10-year study carried out by the Australian Institute of Marine Science found 22 percent of the Great Barrier Reef - almost 650 reefs - did not meet water quality guidelines.

The study found reefs with poorer water quality suffered a loss in coral biodiversity and an increase in seaweed cover.

"Seaweed is not bad, it's a naturally occurring part of a coral reef," AIMS coral reef ecologist Dr Katharina Fabricius told Australian Associated Press.

"However, once it occurs in too great abundance it occupies space that is then not available for coral to recolonise after disturbances such as bleaching events of crown-of-thorns starfish outbreaks."

The study also identified the water quality threshold, a measure of nutrients in water, which determine whether a reef will be healthy or unhealthy.

Fabricius said the thresholds had already been used by the Great Barrier Reef Marine Park Authority to determine water quality guidelines.

The guidelines are utilized in discussions with governments and farmers along the north eastern coast of Australia about restricting the run off of nutrients from their properties.

Editor:Zheng Limin |Source: Xinhua

Hot Videos view more

The celebrations are still continuing as the victorious coach, Joachim Loew, has been honored for his achievement in his hometown of Freiburg.
Germany coach Loew honored in hometown of Freiburg

Chinese men´s national team continued its preparations for next year´s Asian Cup, as they managed a one-all draw against visitors Jordan during a football friendly in Harbin, the capital city of Northeast China´s Heilongjiang Province.
China held to 1-1 draw by Jordan

The defending world champs came into the contest with a perfect 6-and-oh record, but they would be in for a tough first half before opening things up in the second.
USA beat Slovenia 119-76 in quarter-finals

Hot Stories more

UK authorities believe killer of James Foley is a British national

Across the UK the hunt is on for James Foley’s killer, who authorities believe is a British national. As Richard Bestic reports from London, Prime Minister David Cameron cut short his summer break to lead his government’s response.

Israeli war jets renews Gaza strike as truce talks stalled

Three Palestinians were killed and 40 others wounded in the intensive Israeli war jets´ airstrikes on the Gaza city on Tuesday night, shortly before an end of a 24-hour ceasefire in the Gaza Strip,

Missouri police arrest dozens after violent night

As the protests in the town of Ferguson, Missouri turned violent with police facing ´heavy gunfire´ from some ´criminal elements´, cops fired tear gas, stun grenades and arrested 31 demonstrators on Monday night.

Picture in news more

More Video News

Choose TV Program