From WTTW Chicago:

Scientists believe the Quagga mussel first stowed away in the ballast water on transoceanic ships from the Caspian Sea. The mussels made their way into the lakes when that ballast water was purged.

The tiny fingernail-sized mussels closely related to another invasive, known as the Zebra mussel, first appeared in lake waters here in 1988.
The Quagga mussel is now the most pervasive and destructive invasive species ever to enter the Great Lakes. Over the last 15 years, the Quagga population has exploded, eclipsing the Zebra mussel and infecting all five of the Great Lakes. Read more.

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Register Now for HASTI 2026! The early bird registration rate expires tomorrow!We’re excited to be presenting The Watershed Game at the conference. The game is a hands-on activity that helps educators and students explore water quality, land use, and community decision-making.✅ Don’t miss this opportunity to connect with fellow educators and bring new tools to your classroom!📅 Event Details & Registration at the link in bio.
Keeping on top of your farm finances can be a daunting task, but knowing what numbers to track, what the numbers mean, when to spend, and when to save can be critical for the long-term health of your aquaculture business finances. This webinar series will provide you with an overview of practical information for managing your farm’s finances. All webinars begin at 12pm ET. Registrants will be sent a webinar recording. All recordings will be added to a YouTube playlist on Ohio Sea Grant and Illinois-Indiana Sea Grant YouTube pages.Learn more at the link in bio.
Educators—this is for you!Unlock the potential of Great Lakes education with the latest issue of the Center for Great Lakes Literacy newsletter. Explore exciting opportunities like vessel-based learning, an aquaculture competition, and classroom-ready resources on maritime heritage, harmful algal blooms, invasive species, and more!Learn more at the link in bio.