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Invasive Non-Native Species

There are close to 1000 non-native species in Scotland and most don’t cause any problems. A small number do and these are known as invasive non-native species. Invasive non-native species cause huge problems for our native wildlife and often have an impact on the economy. It is estimated that invasive species cost the British economy £1.7 billion every year.

To find out more about a particular species and the threat is poses to the River Annan click on the links below.

If you wish to report an invasive species you can contact us on Please provide as much detail as you can particularly regarding the location. Any photos you can take would be greatly appreciated.

Fallopia japonica
Impatiens glandulifera
Heracleum mantegazzianum
Neovison vison

Image: John McAvoy

Invasive species already present

Pacifastacus leniusculus

Contact Us


Fisheries Office
Annandale Estates, St Ann's
Tel: 01576 470600

Mobile: 07710331079

River Annan Wildlife


Report an Invasive Species


Tel: 01576 470600



Get your copy of the Fisherman's Guide to the River Annan




Pacifastacus leniusculus

Potential Threats to the River Annan

Pacifastacus leniusculus
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