Alert as 'killer shrimp' found

9 September 2010 Last updated at 10:44 ET Help

The Environment Agency has issued an alert over what it describes as a "killer shrimp" which threatens local wildlife.

Conservationists have expressed "extreme concern" over the discovery of dikerogammarus villosus at Grafham Water in Cambridgeshire, due to its potential impact on local eco-systems.

It is said to be the first time that the shrimp, which is normally found in central Asia, has been spotted in the UK.

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