Emu Survey for Thames Dredging

Emu Ltd, UK, has completed a study in the Thames Estuary to provide comparative
data for a dredging programme. The Port of London Authority commissioned Emu to monitor background dissolved oxygen (DO2) and suspended sediment levels in support of a maintenance dredging project in the Princes Channel on the southern side of the Estuary. The Emu-gathered data will be compared with data gathered during dredging to determine the effect of dredging activity on the marine environment. The data was obtained from a custom-designed seabed-mounted frame with sensors positioned one metre above the seabed.