The U.S. Geological Survey is offering a cooperative agreement opportunity for research focused on studying overwinter hydrodynamics on Lake Erie coldwater fish spawning reefs. Eligible applicants must be participating partners of the Great Lakes-Northern Forest Cooperative Ecosystem Studies Unit (CESU) Program, which facilitates research, technical assistance, and education in ecosystem studies. This funding opportunity, categorized under Science and Technology and other Research and Development, has an award ceiling of $140,675 and does not require cost sharing or matching. Interested parties should submit their applications electronically by 5:00 p.m. ET on July 15, 2024, and can contact Faith Graves at fgraves for further information.