The Remote Electronic Monitoring (REM) system has collected sensor data and images throughout the trial period and accoiding to the vessel electronic-logbooks the vessels were at sea for approximately 80 000 hours, carried out approximately 1114 fishing trips and conducted approximately 9 800 fishing operations during the project period. Small reductions in revs resulted in substantial reductions in fuel usage. This infoimation proved very useful in setting the optimum revs of the engine whilst the vessel was steaming to the fishing grounds with a minimal loss to vessel speed.