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On the vast, flat plains west of the Great Dividing Range, a series of connected rivers forms the largest drainage system in Australia – the Murray Darling River System, an area of over a million square kilometres.
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The Murray Darling River system is Australia’s largest river system and one of the world’s major river systems. The Murray Darling River system extends from north of Roma in Queensland to Goolwa in South Australia, and includes three quarters of New South Wales and half of Victoria.
The 30,000 wetlands of this system are extensive and support and maintain the health and productivity of the river system. The Murray Darling Basin covers more than 1 million square kilometres and it has only 1 exit flowing out of Lake Alexandria in South Australia. |
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Overfishing of some species in areas of the Great Barrier Reef is a major concern. Only a small percentage of the reef is fully protected from over fishing and some species such as the coral trout are fished very heavily.
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