Invasive species

The Kennet Catchment has become home to a number of invasive non-native species (INNS), which disrupt the ecology.  These include Americal signal crayfish, American mink, New Zealand pigmy weed, fairy fern, Himalayan balsam and floating pennywort. 

You may trap American signal crayfish but you must follow the Environment Agency's requirements and make sure you have permission from the person who owns the part of the river you would like to trap in.

None of the invasive species are easy to irradicate.

The video
here shows efforts being made to erradicate floating pennywort from the Foudry Brook in Reading, Berkshire.

Click here to view video