Saginaw Bay CISMA
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    • Shoreline Phragmites Treatments 2022
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Au Gres River European frog-bit Treatment


The Au Gres River is known for it's abundant recreational opportunities. Not only is the river a gateway to the Saginaw Bay, it is also a great place to fish and kayak. It is one of the things that makes Au Gres unique and a great place to live and vacation. However, the river is being threatened by invasive species like European frog-bit. European frog-bit can shade out the river, decreasing oxygen levels for fish, can reduce native aquatic plants. It can also get into boat motor intakes and make moving through the water difficult. Saginaw Bay CISMA will be partnering with the City of Au Gres in 2023 to tackle the European frog-bit overtaking the Au Gres River.

Like any invasive species project over a large area, it takes a village (or a city) to be successful long-term. Riverfront residents living south of the US-23 bridge will have many opportunities to partner with us to manage this invasive species that harms the recreational and natural value of the river.

In December, we hosted an introductory meeting for the project over to talk about what this project will look like and opportunities for community involvement. As we get closer to our start date, we will provide more information!

Planned activities include:
  • European frog-bit pulling and training
  • Chemical treatment by CISMA Invasive Species Strike Team
  • AIS Landing Blitz/Boat Wash
If your property borders the Au Gres River south of the US-23 bridge, be sure to fill out a CISMA landowner permission form so we can help with your frog-bit! 
Want to get involved or want to get your group involved in removing EFB? Contact us and fill out our Volunteer Form!

Contact Us

4490 W. M-61
Standish, MI 48658
P: (989)-846-4565 ext. 5
Hours of Operation: 
Mon-Fri, 8:00-4:30
Join Our Mailing List
This project was funded by the Michigan Invasive Species Grant Program (Michigan.gov/Invasives).

    Questions? Concerns? Email Us!

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  • Home
  • About Us
    • Strategic Plan
    • Steering Committee
    • Partners
  • Invasive Species
    • Invasive Species Profiles >
      • Japanese Knotweed
      • Giant Knotweed
      • Phragmites
      • Spongy Moth
      • European Frog-bit
      • Invasive Swallow-wort
      • Starry Stonewort
      • Flowering Rush
    • Watch List Species
  • Events
  • Projects
    • Shoreline Phragmites Treatments 2022
    • Roadside Treatment
    • Hampton Township Treatment
    • Au Gres River European Frog-Bit
  • Resources
    • Landowner Resources
    • Outreach and Education
    • Contractors
    • Tool Crib Rental
  • Contact Us
    • Employment
    • Volunteer