Abstract
The public concern about the effect of underwater noise toward marine life has been increasing for years where the main contributor of anthropogenic noise is commercial shipping. This has a negative impact on the marine life where the responsible body such as the International Maritime Organization (IMO) and others have set a certain guideline for reducing underwater noise. This report will discuss how the rotation of propellers affects the underwater noise. The primary objective of this study is to analyse the effect of underwater noise generated from rotation of propellers by using a suitable method to carry out the experiment. There are several parameters used in this experiment such as the number of propeller blades, the propellers size, the speed of the motor (rpm), the depth of the measuring device, the horizontal and vertical position of the measuring device.
