River Eden
River Leith
River Eden
Non-native species are plants, animals, fungi, and micro-organisms that have been introduced to the UK from other parts of the world. While many of these species live harmlessly alongside native wildlife, some begin to spread aggressively—these are known as Invasive Non-Native Species (INNS).
Around 15% of non-native species become invasive, and when they do, the consequences can be serious:
In the Eden catchment, there are several INNS present, including Himalayan balsam, American Signal crayfish, American mink, Giant hogweed and Japanese knotweed.
To deal with invasive, non-native species we:
Prevent through awareness programmes such as Don't Pack a Pest (Lake District Biosecurity Protection Area Strategy of which we are a member)
Stop the spread through biosecurity awareness Check, Clean, Dry, Don't Pack a Pest, and the promotion of recording of sightings using apps such as INNSMapper.
Remove through the annual Big Balsam Bash and strategic removal of Himalayan balsam in the headwaters and other species where practical.
We aim to prevent further spread, improve awareness amongst a variety of water users, and manage areas so native habitats can thrive once again.
We can only do so much, and the task of completely eradicating INNS can seem overwhelming. However, it’s easy for you to help us out and protect your local river too.
You have the power to help stop the spread!
your gear for mud, plants and animals
it with fresh water
it fully - some species survive for weeks when damp
Many invasive plants were originally introduced for gardens but then spread out of control. Visit the NNSS website to find out more about the invasive species in your garden and the alternative native plants that can replace them
Have you spotted an INNS when out and about? Do you want some help to ID an invasive species? Help us locate and record INNS with the INNS Mapper app.
Download it from your app store or visit the website
Want to help tackle your local river and keep it INNS free?
Join us on our Big Balsam Bash (takes place each summer). Find a location near you and join the fight to remove Himalayan balsam. Find out more on our ‘Things to do’ page and select 'volunteer events.'
