Sydney Institute of Marine Science contacted AUS-ROV and presented an issue where 20km offshore from Sydney Harbour they had some fish monitoring devices (FMD) that failed to return to the surface after being acoustically released via hydrophone. The FMD’s are part of a worldwide project gathering data on the movement of tagged fish species. AUS-ROV successfully recovered the devices from depths of 150m. The SeaBotix vLBV300 was 'flown' to the seafloor within close proximity to the GPS coordinates of the deployed FMD. Once resting on the ocean floor the ROV's sonar was used to identify potential targets. When an investigated target proved to be an FMD the manipulator was used to grab and retrieve