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UK waterways face 'invasional meltdown' from European organisms (BBC)
By Matt McGrath
Environment correspondent, BBC News
Scientists are warning that an army of species from Turkey and Ukraine is poised to invade Britain's waterways.
One organism, the quagga mussel, was discovered in a river near London just weeks ago.
At least 10 others are established in the Netherlands and there is a "critical risk" of them coming here.
Researchers are also concerned that invaders, including the killer shrimp, will rapidly spread and devastate native species.
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They believe these creatures have spread across Europe in recent years because of canal construction that has helped them move outside their native range.
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more: http://www.bbc.com/news/science-environment-29570347
