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Save the Great Barrier Reef Part 2



The Great Barrier Reef is under great stress, and you can see it in the coral.  It is getting so bad that on the 14th of March the authority raised the coral bleaching warning from level one to two after surveys carried out by divers over the preceding fortnight found reefs around Lizard Island, north of Cairns, and further north were the worst impacted.

WHAT'S MAKING THE ONCE VIBRANT GREAT BARRIER REEF TURN WHITE?

1.  heat stress caused by ocean surface temperatures reaching as high as 33C in February, a symptom of a strong El Nino weather system

2.  heat stress can cause coral to expel tiny algae that usually provides the corals with most of their colour and energy

3.  without the algae, the coral's bright white skeleton is revealed

4.  coral can recover from bleaching if heat stress lessens and conditions return to normal

More information from a variety of sources - here is one - Brisbane Times - Great Barrier Reef Bleaching Hits Severe Levels

Picture taken by Mary Sue Rogers 

Posted On : 22-03-16

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