While most anglers are vigilant about the risk of spreading non-native species and disease, there is a real risk that those that aren't could accidentally spread these organisms, harming the environment and potentially damaging the reputation of the sport.

Use these materials to learn more or teach others about non-native species, how to identify them, and how to prevent their spread:


Take free e-learning on non-native species (external link). Available modules include: 

  • an introduction to non-native species
  • identification and recording
  • identification of key freshwater plants
  • identification of key freshwater invertebrates
  • identification of key riparian plants
  • biosecurity

Identification and recording

Find out more about non-native species using the Non-native Species Information Portal

Identification Guides for a range of non-native species

Invasive non-native plants associated with fresh waters (PDF) - a guide to their identification developed by Scottish Natural Heritage


Remember to Check Clean Dry when you leave the water to prevent the spread of invasive aquatic species. Download a Check Clean Dry leaflet (PDF)

Guidance on how anglers can avoid spreading the invasive Killer Shrimp (PDF)

Report on biosecurity for anglers (PDF), including recommendations for clubs and instructors


Control methods for non-native aquatic and riparian plants

Safe disposal of waste plant material

Health and safety

Further training and advice

 Training courses and experts

Recommended reading list


Thin strip of image show tree trunk and bark