Michigan Pushes U.S. Congress for USD 500 Million to Combat Invasive Mussels in the Great Lakes

Michigan lawmakers are preparing to request USD 500 million in federal funding to tackle invasive mussels threatening the Great Lakes ecosystem, particularly the region’s vital whitefish populations. U.S. Representatives Debbie Dingell and Tim Walberg plan to introduce the Save Great Lakes Fish Act of 2025, a bipartisan proposal that would dramatically increase funding for mussel control research over the next decade.

Dingell said the bill aims to protect fisheries, curb the spread of invasive species, and preserve the Great Lakes - a national treasure for millions of Americans. Quagga and zebra mussels, introduced from Europe in the 1980s, have rapidly colonised the lakebeds. Experts warn they cause severe ecological disruption, including the collapse of amphipod populations that many fish species depend on for food.

Despite the growing threat, federal support has so far been limited to just USD 1 million annually. The new proposal seeks to close that gap and strengthen long-term protection for the lakes.

The region also faces broader invasive species challenges, including Asian carp, which have not yet reached the Great Lakes but remain a major concern. Michigan and Illinois, alongside the Army Corps of Engineers, are constructing barriers to prevent the carp from advancing northward - a priority reinforced by U.S. President Donald Trump earlier this year.

USD 500 million for invasive mussel research and control (versus current USD 1 million annual funding) reflects the scale gap between the environmental threat and current response. Quagga and zebra mussel colonisation of Great Lakes bottom habitats has fundamentally disrupted food webs, affecting fisheries that support both commercial and recreational economic activity in the region.

The bipartisan nature of the proposed legislation is analytically significant. Environmental protection with clear economic-and-community impact tends to attract cross-party support that pure ecological framings frequently do not. Great Lakes fisheries preservation touches multiple state constituencies and economic sectors.

For fisheries operators, water utilities, tourism-and-recreation businesses and financial institutions supporting Great Lakes economic-and-environmental investment, Cognitud's nature-based solutions, impact assessment and sustainability due diligence teams help clients evaluate invasive-species-linked risk exposure, structure long-term ecosystem-restoration partnership programmes, and prepare disclosures aligned with TNFD, SBTN and jurisdictional biodiversity frameworks.