INTRODUCTION: IN RECENT YEARS NOISE PRODUCED ON BOARD OF SHIPS AND UNDERWATER IS CONSIDERED FROM TWO DIFFERENT POINT OF VIEW, MARINE ENVIRONMENT AND SAFETY (FATIGUE ON CREW).
IMPACT OF UNDERWATER NOISE ON MARINE LIFE HAS BEEN WIDELY INVESTIGATED AND REPORTS PRESENTED AT MEPC MEETINGS. THERE ARE A NUMBER OF DIFFERENT SOURCE OF UNDERWATER NOISE FROM SHIPPING. THESE CAN BE SUBDIVIDED INTO THOSE CAUSED BY THE PROPELLER, MACHINERY, AND THOSE CAUSED BY THE MOVEMENT OF THE HULL THROUGH THE WATER.