Webinar Announcement: Aquatic Vegetation Management

Large Lake Eurasian Watermilfoil Management

Eurasian watermilfoil is an invasive aquatic plant that poses significant ecological and economic threats to freshwater ecosystems, particularly in lakes. This presentation will focus on effective strategies for surveying and managing Eurasian watermilfoil populations to protect lake health. We will explore current methods of surveying, and GPS-based mapping, to accurately monitor the spread and density of this invasive species. Additionally, the talk will cover management approaches using chemical treatments and timing of treatments.

Presenter:  Jason Euchner

Fisheries and Aquatic Plant Response to Lake Restoration Projects in Northwest Iowa Natural Lakes

Lake restoration projects in Iowa focus on improved water quality, nutrient management, and habitat restoration. Many of the management actions taken during these projects focus on long-term improvements and stability, but some actions can produce an immediate impact, shifting a lake between turbid and clear water stable states. This shift can have dramatic impacts on aquatic plant densities and diversity. This shift in aquatic plant communities can then trigger a rapid shift in the fish community. These changes have positive ecological impacts and improve fishing opportunities, but this rapid shift in lake biology may present challenges for some users. The methods for lake restoration on three northwest Iowa natural lakes will be discussed along with the impacts on plant and fish communities. Challenges associated with public perception and invasive species will also be presented.

Presenter:  Mike Hawkins