The study involved having 7 types of recreational powerboats pass over sensors at different speeds using different motor settings. https://www.kare11.com/article/news/local/u-of-m-researchers-go-underwater-to-gauge-powerboat-impacts-on-lake-ecosystems/89-16629c75-3115-47e4-80c2-6021617f294f Welcome to the KARE 11 News YouTube channel. Subscribe to our channel for compelling and dramatic storytelling, award-winning investigations, breaking news and information you can use. Text your photos, videos and news tips to 763-797-7215. » Subscribe to KARE 11 on YouTube: https://www.youtube.com/user/KARE11?sub_confirmation=1 » Watch more KARE 11 video: https://www.youtube.com/@kare11/videos » Visit KARE11.com: http://www.kare11.com/ » Stream KARE 11+ on your TV: https://www.kare11.com/plus » Download our mobile app: https://www.kare11.com/app » Find KARE 11 on Facebook: https://www.facebook.com/KARE11/ » Follow KARE 11 on X: https://x.com/kare11 » Follow KARE 11 on Instagram: https://www.instagram.com/kare11/ » Follow KARE 11 on TikTok: https://www.tiktok.com/@kare11news