invasive species

Invasive Non-Native Species (INNS) are a national concern

There are many non-native species in Great Britain, but only a small proportion are invasive. Having said that, some are causing increasing problems and the GB Non-Native Species Secretariat was set up to provide an information portal (much better that we could provide, so please go there for more information) and co-ordinate national action.


INNS in the Aire catchment

We do have problems on the Aire (most especially with Giant Hogweed, Japanese Knotweed, Himalayan Balsam and Signal (red-clawed) Crayfish. You can read what we are doing here.

If you are working, fishing, canoeing or otherwise 'messing about in rivers' then please take note of the 'Check, Clean Dry' advice on that page and help avoid spreading the misery around.

See it, report it!

When you spot INNS, please you can record them either on:

The national site iRecord

YWT's regional site INNSMapper, you will need to Register first

Contact us and we will pass the details on for you

Thank you for helping make a difference.


We have an advice sheet to help you deal with invasives.

To download, click the image below.

biosecurity advice

Here are a few general interest articles about INNS, we hope you enjoy them.

17 Invasive species causing problems...

Six of the most destructive plants and animals...

Invasive non-native plants (a good guide from the RHS)

A view from the RSPB - not all bird-centric


"Click, Clean, Dry" - the national advice for avoiding transmission.

Click the image to download.

check clean dry

© Copyright Aire Rivers Trust 2020
The Aire Rivers Trust is a company limited by guarantee registered in England and Wales No: 07464227 and a Registered Charity No: 1145609
Registered Office at: 38 Morton Lane, East Morton, Keighley BD20 5RS
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