Voyageurs National Park is a water based park, attracting over a quarter of a million visitors per year to fish, swim, and boat (Figure 1). The National Park Service mission to maintain resources unimpaired for future generations guides management actions. Ecosystems that are impaired are not able to function properly nor are they able to fully provide their valuable services. For these reasons, maintaining the health of Voyageurs National Park aquatic ecosystems and restoring any which are impaired is a high priority.