178
M. R. Zoolfakar and M. S. M. Khairul
the topic of underwater ambient noise that is of interest to a various set of activity,
biological and physics professionals concerned in its analysis [2].
Anthropogenic noise from shipping is the most persuasive source of noise [3]
and since the 1960s, the noise is increasing gradually in magnitude in the deep sea
parallel with the growth. The continuation of the noise from shipping may have
effect to marine species both through continuous exposures to vessel routes [4].
Anthropogenic noise has the possibility to actuate a stress reaction on marine fauna,
characterized as “the physiology, behavior and hormone changes that verdict from
acquaintance to a stressor” [5]. A response to noise may also result in hypoxia, the
mixture of the exposure to unusual noise may effects the health or leads to death
and influences the fertility of surviving animals and a decrease in their regenerative
success may have important effects at the level of population [6].
The results of anthropogenic noise on marine species and habitats, and in view
of to what extent the emitted sound lasts, it is able to distinguish between impulsive
and continuous anthropogenic sound [7]. This study focuses on the underwater noise
level. It confirms that anthropogenic noise is connected with the possibility to have
adverse fitness outcomes with respect to initial life phases [8].
Nowadays, the concern of public about the effects of underwater noise on marine
mammals has progressively increased over the past few eras and commercial shipping
is one of the main contributors to anthropogenic noise [9]. It has longer wavelengths
and its peaks need high pressure in comparison to high-frequency wave creating it
more capable of long-range propagation [10]. The study of URN on commercial
shipping with regard to the improvement of potential guidelines and regulations to
be applied in the future has been supported by the Marine Environment Protection
Committee (MEPC) [11].
The performance of the propeller is observed based on the characteristic and the
results will assessed and compared with each of the variables used. The objective of
this study is to design an experiment regarding noise level generated by the propeller
rotation and to analyse the noise level generated from the rotation of propeller.
17.2 Methods
In general, this study required to construct an experiment to collect data and to analyse
it. It also describes the sequence flow of the project and the planning proposed in
order to obtain the expected outcome. It includes the flow chart on how to gain the
data for the project parameters up to the data analysis processes.
This experiment is conducted in several steps to get the result where it starts
with planning, the implementation, and the collection of data. All of the data will
be analysed and will plotted a graphs to show the comparison result for each of the
parameters.
M. R. Zoolfakar and M. S. M. Khairul
the topic of underwater ambient noise that is of interest to a various set of activity,
biological and physics professionals concerned in its analysis [2].
Anthropogenic noise from shipping is the most persuasive source of noise [3]
and since the 1960s, the noise is increasing gradually in magnitude in the deep sea
parallel with the growth. The continuation of the noise from shipping may have
effect to marine species both through continuous exposures to vessel routes [4].
Anthropogenic noise has the possibility to actuate a stress reaction on marine fauna,
characterized as “the physiology, behavior and hormone changes that verdict from
acquaintance to a stressor” [5]. A response to noise may also result in hypoxia, the
mixture of the exposure to unusual noise may effects the health or leads to death
and influences the fertility of surviving animals and a decrease in their regenerative
success may have important effects at the level of population [6].
The results of anthropogenic noise on marine species and habitats, and in view
of to what extent the emitted sound lasts, it is able to distinguish between impulsive
and continuous anthropogenic sound [7]. This study focuses on the underwater noise
level. It confirms that anthropogenic noise is connected with the possibility to have
adverse fitness outcomes with respect to initial life phases [8].
Nowadays, the concern of public about the effects of underwater noise on marine
mammals has progressively increased over the past few eras and commercial shipping
is one of the main contributors to anthropogenic noise [9]. It has longer wavelengths
and its peaks need high pressure in comparison to high-frequency wave creating it
more capable of long-range propagation [10]. The study of URN on commercial
shipping with regard to the improvement of potential guidelines and regulations to
be applied in the future has been supported by the Marine Environment Protection
Committee (MEPC) [11].
The performance of the propeller is observed based on the characteristic and the
results will assessed and compared with each of the variables used. The objective of
this study is to design an experiment regarding noise level generated by the propeller
rotation and to analyse the noise level generated from the rotation of propeller.
17.2 Methods
In general, this study required to construct an experiment to collect data and to analyse
it. It also describes the sequence flow of the project and the planning proposed in
order to obtain the expected outcome. It includes the flow chart on how to gain the
data for the project parameters up to the data analysis processes.
This experiment is conducted in several steps to get the result where it starts
with planning, the implementation, and the collection of data. All of the data will
be analysed and will plotted a graphs to show the comparison result for each of the
parameters.