This year-round telemetry study, managed by the Naval Undersea Warfare Center Division Newport (NUWCDIVNPT) since May 2021, monitors ESA-listed Atlantic sturgeon (Acipenser oxyrhynchus, threatened) and shortnose sturgeon (A. brevirostrum, endangered) in the lower Kennebec River and adjacent coastal waters. The 2019 National Marine Fisheries Service (NMFS) Biological Opinion (GARFO-2019-01719) for Kennebec River maintenance dredging recommended future studies to characterize year-round habitat use by the Gulf of Maine Distinct Population Segments (DPS) of Atlantic sturgeon and shortnose sturgeon. The monitoring array extends from Dresden, Maine downriver to Fort Popham, with offshore stations forming a curtain between the Fox-Seguin Islands and the Jackknife Ledge Dredge Disposal area (Fig 1). This array is designed to track tagged sturgeon, but also records movements of other tagged migratory species, such as white sharks (Carcharodon carcharias). The project’s objectives are to support U.S. Navy environmental compliance and permitting associated with the Kennebec River Federal Navigation Project and activities near Bath Iron Works (BIW), while identifying optimal dredging windows that maintain operational readiness and minimize impacts to ESA-listed species. These monitoring data provide a year-round environmental baseline to support Navy consultations and regulatory decision-making related to dredging and other in-water activities. Specific goals include: monitoring year-round presence and migration patterns of both sturgeon species; documenting sturgeon activity near Bath Iron Works; increasing the number of tagged sturgeon; and recording coastal movements of sturgeon and NOAA-designated highly migratory species offshore from Popham Beach.