Aquatic Invasive Species (AIS)
Aquatic Invasive Species (AIS) are aquatic organisms that invade ecosystems beyond their natural, historic range. Their presence may harm native ecosystems or commercial, agricultural, or recreational activities dependent on these ecosystems. They may even harm our health. Click on the pictures below to read more.
For many centuries, humans have contributed to spreading non native species around the globe. These species have been introduced either intentionally or unintentionally.
Examples of Intentional Introductions
- Releasing unwanted aquarium fish into a lake.
- Stocking sport fish outside their native range.
- Liberating unused bait fish.
- Introducing non-native species for management (bio-control, ecosystem engineering)
Examples of Unintentional Introductions
- Trailered boats.
- Ballast water discharge.
- Escape of organisms from hatcheries and aquaculture facilities.
The Minnesota DNR Aquatic Invasive Species web page is loaded with helpful information regarding rules and regulations, species identification, and what individuals and groups can do to prevent the spread of AIS. Visit their website: MN DNR Aquatic Invasive Species Page
Big Stone County's AIS Plans