[an error occurred while processing this directive]
BBC News
watch One-Minute World News
Last Updated: Thursday, 22 February 2007, 12:43 GMT
18m salmon income under threat
American signal crayfish
The American crayfish has been discovered in the River Till
The salmon fishing industry worth 18m a year on the River Tweed is under renewed threat from a major predator.

American signal crayfish have been found in the River Till - a tributary which joins the Tweed near Coldstream.

Nick Yonge of the Tweed Foundation said the discovery of 24 crayfish, which eat young salmon and disturb their natural habitat, was a major blow.

Last year the crayfish were discovered in other tributaries at the Ettrick Water and Leithen Water.

It is not yet clear how much damage the crayfish have caused or how they got into the tributary.

Police plan to pounce on poachers
02 Feb 07 |  South of Scotland
Warning over deadly fish parasite
01 Feb 07 |  South of Scotland
18m netted through river angling
25 Jan 07 |  South of Scotland
Crayfish threat to Borders salmon
21 Jul 06 |  South of Scotland
Parasites threaten Tweed fishing
03 Dec 04 |  Scotland

The BBC is not responsible for the content of external internet sites

Has China's housing bubble burst?
How the world's oldest clove tree defied an empire
Why Royal Ballet principal Sergei Polunin quit


Americas Africa Europe Middle East South Asia Asia Pacific