“The report from the multi-institution EcoFore-Lake Erie project states that a 46 percent reduction in the amount, or load, of phosphorus pollution would be needed to shrink Lake Erie’s Central Basin hypoxic zone to a size last seen in the mid-1990s—a time that coincided with the recovery of several recreational and commercial fisheries in the lake’s west and central basins.Phosphorus is a nutrient used in crop fertilizers. Excess phosphorus washes off croplands during rainstorms and flows downstream in rivers that feed the Great Lakes. Once in the lakes, phosphorus can trigger algae blooms. When the algae die and sink to the lake bottom, oxygen-consuming bacteria feed on them and create hypoxic zones in the process. Many fish shun these oxygen-starved waters, which significantly reduce the amount of suitable habitat available to the fish.The study, accepted for publication in a forthcoming edition of the Journal of Great Lakes Research, calls for Central Basin phosphorus reductions considerably higher than other recent recommendations, including a proposal issued last year by the Ohio Lake Erie Phosphorus Task Force aimed at avoiding Western Basin toxic algae blooms. The new report is a synthesis of the major findings from the EcoFore-Lake Erie project, created in 2005 and supported by the U.S. National Oceanic and Atmospheric Administration’s Center for Sponsored Coastal Ocean Research.”
Recent News
- Relaunched website provides resources for proper medicine disposal
- Meet our Grad Student Scholars: Lena Azimi
- Spring brings a program review as well as education and outreach opportunities
- Public comments sought for Illinois-Indiana Sea Grant review
- Illinois Indiana Sea Grant announces new coastal ecosystem and community resilience specialist
IISG Instagram
Out with the old. A newly updated UnwantedMeds.org is here to make safe disposal of old medications easier than ever.
Read more at the link in bio.

We are excited to offer the opportunity to propose a speaker or panel session during the 2026 Emerging Contaminants in the Environment Conference April 28-29. The conference will feature traditional 15-minute presentations and a poster session on the latest in emerging contaminant research, policies, and outreach in the soil, water, and air.
The deadline to propose a session is June 16, 2025.
Learn more at the link in bio.

What Wild Things Will You Find in Your Watershed? Join us from April 22 to May 19 on iNaturalist for the Great Lakes BioBlitz! Participate in weekly challenges, view others` observations, and build community across the basin.
How to Participate:
-Register: Sign up on iNaturalist.
-Observe: Explore your watershed and document the wildlife you find.
-Engage: Share your observations and connect with fellow nature enthusiasts.

Join the Invasive Crayfish Collaborative for an exciting webinar featuring Purdue University master`s student Izzy Paulsen. Izzy will share her mixed method study exploring how and why teachers use live crayfish and their interest in outreach. Her study draws from interview and survey data conducted in Great Lakes states.
Register at the link in bio.
