Local BBC Sites

Neighbouring Sites

Page last updated at 09:31 GMT, Wednesday, 16 September 2009 10:31 UK
The East's crayfish fight back

The white-clawed crayfish is being threatened by an American intruder

The East of England's white-clawed crayfish are being moved from the River Wensum in Norfolk to a secret location in Suffolk to increase numbers.

The species has been in rapid decline since the larger American signal crayfish was introduced in the 1950s.

The American variety are twice the size of the white-claw and more aggressive.

"Since the 1970s they have been disappearing from one river system after another," said Julia Stansfield from the Environment Agency.

Chris Packham's Minsmere paradise
16 Sep 09 |  Nature & Outdoors
Take a trip to Suffolk's Atlantis
16 Sep 09 |  Nature & Outdoors
The sounds of the River Wensum
21 Jul 09 |  Nature & Outdoors



Sign in

BBC navigation

Copyright © 2017 BBC. The BBC is not responsible for the content of external sites. Read more.

This page is best viewed in an up-to-date web browser with style sheets (CSS) enabled. While you will be able to view the content of this page in your current browser, you will not be able to get the full visual experience. Please consider upgrading your browser software or enabling style sheets (CSS) if you are able to do so.

Americas Africa Europe Middle East South Asia Asia Pacific