1.Previous
3.Next

of alien species to the catchment has had a major effect on the wildlife of the river. Water vole populations declined catastrophically along the Chess between 2001 and 2003 with a 97% population decrease being observed. This population crash was caused mainly by the North American mink, a species introduced to the British Isles originally for the fur trade. In 2004 a water vole recovery project was set up by the Chilterns Chalk Streams Project and the Environment Agency,

1.Previous
3.Next