Invasive Species

Invasive species are non-native plants, animals, and pathogens that cause environmental damage, economic loss, or harm to human health. These pests displace native species, harm habitats, and degrade natural, managed, and agricultural landscapes.

SCRA is committed to protecting the St. Croix River and its watershed from the threats posed by invasive species. Currently, we are developing an Aquatic Invasive Species (AIS) Strategic Plan to address AIS threats and impacts. SCRA is also a member of the St. Croix – Red Cedar Cooperative Weed Management Area (CWMA).

SCRA is working in several areas to mitigate invasive species.

Asian Carp

asian-carp_face2-Photo credit T. Lawrence, GLFC

Aquatic Invasive Species


Terrestrial Invasive Species


AIS Strategic Plan

AIS Monitoring Paddle

St. Croix-Red Cedar CWMA


For more information, please contact: Katie Sickmann, Invasive Species Coordinator at or call 715-483-3300