Invasive non-native species are defined as animals or plant species that have spread outside of their natural range and threaten native biodiversity. The Colne catchment contains over 11 invasive non-native species associated with the water environment, for example  Floating Pennywort and Signal Crayfish.

To date, the control of invasive species throughout the Colne Catchment has been piecemeal, carried out by a number of organisations such as the Chilterns Chalk Streams Project, Wildlife Trusts and Impress the Chess. Any actions to control the spread of an invasive species should be undertaken in a consistent, joined up manner, ensuring that plans are in place to prevent their return.

An invasive species sub-group was set up in the summer of 2016, plans are in place to better co-ordinate and manage our approach to invasive species. We are encouraging the use PlantTracker application for recording and looking into GIS systems to share data. We are also looking at a pilot scheme establishing detailed landowner , borough and parish council and other  stakeholder data in relation to invasive species to help form a catchment co-ordinated  approach, also connected to other river issues.  For more information contact This email address is being protected from spambots. You need JavaScript enabled to view it..

Design by LTD Design Consultants and build by Garganey Consulting. From an original concept by the Herts and Middlesex Wildlife Trust.