A recent study led by GLSC's Ben Marcy-Quay (Millersburg, MI), published on March 25, 2025, in Fisheries (https://doi.org/10.1093/fshmag/vuaf020), quantifies the effect of reduced sea lamprey control effort in 2020-2021 during the COVID-19 pandemic. The multi-agency team, which included Sean Lewandoski (GLSC, Millersburg, MI), Brian O’Malley (GLSC, Oswego, NY), and Nick Johnson, (GLSC, Millersburg, MI), as well as scientists from the U.S. Fish and Wildlife Service, Department of Fisheries and Oceans Canada, New York State Department of Environmental Conservation, Ontario Ministry of Natural Resources, and the Great Lakes Fishery Commission, analyzed a multi-decade suite of lamprey wounding and adult lamprey abundance index data. Results indicate that when sea lamprey control is relaxed, sea lamprey abundance and wounding rates increase substantially (more than 10-fold in some circumstances). The Great Lakes Fishery Commission highlighted the work in an April 10, 2025 press release: Noxious Sea Lampreys Took Advantage of Covid-19 Pandemic, New Study Finds and Ben was interviewed regarding the work by Keith Matheny from the Detroit Free Press for an article published the following day: Sea lamprey control efforts slowed during COVID-19: It let the Great Lakes invaders flourish.