Monster crabs get claws into bay

page 9' Crab'Named after their white tipped claws, these 8cm-long Asian crustaceans have a voracious appetite for almost anything that gets in their way. Their extensive burrowing damages canals, drainage embankments and structures - mostly in London, where they were found more than 70 years ago.

page 9' Crab'Named after their white tipped claws, these 8cm-long Asian crustaceans have a voracious appetite for almost anything that gets in their way. Their extensive burrowing damages canals, drainage embankments and structures - mostly in London, where they were found more than 70 years ago.

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MONSTER crabs are posing a threat to the waters of Morecambe Bay.

Chinese Mitten crabs have arrived in the UK through a combination of escaping from ship’s ballast water, hull fouling, live food trade and smuggling.

The large crabs have been spotted in Cumbria and now scientists are warning that they could spread further.

In other areas they have caused immense economic and ecological damage, to unprotected river banks, blocking water systems, damaging fishing gear and competing with native species for food and habitat.

See The Visitor (08-11-11) for full story.