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Boat Owners/Operators Urged To Take Extra Precautions To Prevent Spread Of Aquatic Invasive Species

May 04, 2023 Steve Schwaller

(Orleans)– Officials are reminding everyone to be diligent this Walleye Weekend when it comes to invasive aquatic plants and species. It’s taken on a renewed importance after the discovery last summer of Eurasian Watermilfoil on East Lake Okoboji and some of the lower chain of lakes. The infected areas have since been treated and officials say it appears to have been effective. But Mike Hawkins, a fisheries biologist with the Iowa Department of Natural Resources says it’s critically important we do everything possible to prevent any new infestations. He says keeping your boat clean is at the top of the list…

“One of the things that can happen when someone pulls out of the water is that their trailer can pick up a number of aquatic plants along the axles, along the tires, along some of the framing on the back side, the rollers, and even on the motor. Even a small fragment of an aquatic plant can actually be transported to another water body and start an entire new colony of that type of species.”

Hawkins says it’s also important to make sure your boat and related equipment is completely dry before moving it to another body of water…

“And that includes the bilge, which is the inside of the boat, and it’s controlled by your bilge plug that’s down below. The bilge plug needs to be out of the boat and all of that water drained. The live wells within the boat as well need to be drained. The best thing that you can do is stop by a car wash and actually power wash the boat and trailer using a hot power wash.”

Officials say it’s especially important to keep Eurasian Watermilfoil out of Big Spirit Lake and West Lake Okoboji as those bodies can’t be treated because they’re drinking water sources.