Michael Sears, Business Development Manager, Innovasea discusses how advances in acoustic telemetry have enabled researchers to monitor fish passage facilities and fish protection measures employed at hydropower dams with enhanced precision. Acoustic telemetry can provide more detailed information than other monitoring methods, which can answer study questions sooner, inform engineers of passage or protection effectiveness and potential design alternatives, as well as save study costs and capital costs in the long term. This presentation provides a summary of new innovations in acoustic telemetry, including advances in 2D and 3D fish tracking and predation tags. Additionally, Michael addresses case studies where these advances in acoustic telemetry have been utilized.