Imagine your favorite fishing spot and the wonderful memories. Things may look fine but underneath the surface there is a serious threat. Everything you remembered is now cemented together in a sharp, smelly mess. Invaders have wiped out the fish species you used to catch.
How You Can Help – Stop Aquatic Hitchhikers
Vessel owners are legally responsible for Aquatic Invasive Species decontamination prior to entering park waters (extending 4.5 miles from Isle Royale and the outer islands). This applies to all vessels (power and sailboats, canoes, kayaks, etc.) regardless of size or configuration.
Please take the following steps to prevent the transport of zebra mussels and other aquatic invasive species to Isle Royale waters.
Before Traveling to Isle Royale
BoatersDrain live wells and bilge on land - remove transom water, lake water, and unwanted bait from your boat. Wash your boat, including bilge and equipment with either: a) hot (greater than 104 degrees F) water, b) high pressure water, c) disinfectant OR clean and dry your boat and equipment in the sun for five days. Rainy days do not count.
Canoeists and KayakersRemove weeds, algae, and other plant and animal materials from your boat. Wash your boat and equipment with either: a) hot water (greater than 104 degrees F), b) high pressure water, c) disinfectant OR clean and dry your boat and equipment in the sun for five days. Rainy days do not count.
AnglersClean fishing gear before island departure.
DiversWash all dive gear in warm chlorinated tap water. Disinfect your wetsuit with a special-purpose shampoo. Dry all dive gear and wetsuit for seven days before island departure.
While on Isle Royale
Canoeists & KayakersWipe down your boat and associated gear before moving from Lake Superior to inland waters.
AnglersWhen moving from Lake Superior to inland waters, clean gear and change line spools.
Last updated: March 26, 2021