An Oil spill is the release of a liquid petroleum hydrocarbon into the environment. An oil spill has negative effect such as Poisoning of marine biota, a decline in fish larval population, risk of loss of endangered species (olive ridley turtle),Reduced growth in fish. All engineering aspects was only to remove oil from spill area ,but measures to conserve aquatic life has not yet been developed . The DFO method was inspired from salmon pen culture where acoustic Deterrent devices used to frighten the predator which damage the Salmon Pen culture. The same technique used to conserve aquatic life from oil spill area. The Off shore drillers can install these AHD near their air gun operators for avoiding fish intervention near their facilities.
DFO method is diverting the fish from the oil spill area by the technique using sound pressure waves and fish attractants The sound pressure waves either attract (high frequency wave) or threaten (low frequency wave) the fish.. Installation of continuous wave sonar & Acoustic deterrent devices (AHD) in oil drilling areas create a high intense low frequency waves . These waves activate the Lateral reactive senses in fish. These Low frequency waves indicates approaching danger to fish .Thus, the Fish gets frightened away. The DFO method aids in Blue Revolution such as Oil based fish degradation reduced,. Ecological habitat remain sustained, Vindicating marine capture fisheries from deterioration during oil spill.