Sound Pollution Effect on Fish Migration Rate in a Tank Experiment

The marine industries have been on a large scale expanse and are likely to endanger the aquatic organism that sustains life on earth. These activities include increase naval traffic, offshore trawlers coming near shore, dredging, seismic activities, rigs and drill ship all of which generate noise, heat and vibration. The aim of this study is to create an experimental scenario of finding out the noise impact on fish fingerlings using the difference between the noise impact in tank and the control study tanks as index. The fish of choice is tilapia Hertrobrancus because of their relative abundance and tolerance in both ponds, fresh water and brakish water system. The experimental results show that fish fingerlings respond sharply to impulsive noise of pilling and blast even at low intensity and documented a p-value of 0.00 which is significant and an adaptation sequence of 2.5 if the sound source is not letal at the first instance, which is indicative of attenuation due to the stress of escape. Since migration is a function of locomotion, stress and exposure, it is deductive from existing sound impact studies that life risk, feeding rate, growth rate and reproduction is affected and to a large extent, extinction, if not well managed which calls for a close watch.