Aquatic invasive species are a growing risk for National Park resources and values. In the United States there are more than 250 non-native aquatic species from other continents and over 450 non-natives within North America that have been moved outside their native habitats!
Aquatic invasive species pose threats to parks, ecosystems, and visitors by:
- Outcompeting native species
- Threatening the safety of park employees and visitors
- Changing and degrading the experience of park visitors
- Requiring intensified maintenance and monitoring
- Altering natural ecological processes