Practical Water Wisdom: Are Invasive Cattails Taking Over Your Lake?

Practical Water Wisdom: Are Invasive Cattails Taking Over Your Lake?
6/1/23, 12:00 pm - 6/1/23, 1:00 pm


Registration required to attend this virtual event.


In Minnesota lakes, a diverse community of aquatic plants in the nearshore zone prevents erosion, supports the lake’s food web, and provides the elements for a healthy fish community. These vegetated areas near shore provide crucial spawning habitat for adult fishes, nursery habitat for young fishes, and important food and habitat resources for prey.

In many lakes throughout Minnesota, invasive narrow-leaf and hybrid cattails (Typha angustifolia and Typha X glauca, hereafter cattail) are overtaking diverse nearshore plant communities and altering the habitat by forming dense, uniform stands of cattails that reduce dissolved oxygen, displace native vegetation, and have detrimental effects on fishes. These invasive cattails can also be a nuisance to landowners as they prevent lake access and overtake shoreline areas.

This presentation is about Minnesota Sea Grant's Invasive Cattail-Dominated Shorelines project. The goal of this project is to understand how to manage invasive cattail in lakes to restore nearshore plant community diversity, maintain water quality, benefit fishes and other organisms, and keep Minnesota lakes healthy.

Practical Water Wisdom: A Virtual Learning Series is presented by Itasca Waters with support from:


Amy Schrank, extension program leader; fisheries and aquaculture extension educator, Minnesota Sea Grant.


John A. Downing, director, Minnesota Sea Grant.

Image credit: Brendan Nee