Invasive species can be a plant or animal and all can have disastrous effects on the waterways of Wales.
The easy way for paddlers to play their part in containing any transfer is to:
Paddle Cymru and Paddle UK have produced the poster below for use at access points - but it's important for all paddlers to be aware of the actions you can take to help prevent the spread of invasive species.
You can find more information about how to protect our environment on the Paddle UK website
here.