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There are fears that two species - the Demon Shrimp and the Zebra Mussel may be about to enter Cumbria's waterways and devastate the local wildlife.
Both have already spread to a canal basin in North Lancashire. Anglers and boat users are being asked to make sure they don't inadvertently move the creatures.
Tim Backshall has this exclusive report.
There are fears that two tiny river creatures which are normally found in Asia could be about to enter Cumbria's waterways and devastate the local wildlife.
One is called the Demon Shrimp, the other the Zebra Mussel. Both have already spread to North Lancashire.
They can wipe out the native shrimp population and harm fish.
Latest ITV News reports
Two small creatures from thousands of miles away could create big problems for Cumbria's rivers.