A method for inducing lethal lesions in sensory organs of undesirable aquatic organisms by the use of sound

This invention incapacitates or kills undesirable aquatic organisms in an infected aquatic zone by exposing the organisms to continuous sound signals sufficient to reach a Sound Exposure Level (SEL) sufficient to induce lesions in sensory organs responsible for detecting sound and/or particle pressure. According to one embodiment, the target SEL is achieved by playing a continuous loop of a number of individual sounds of a given duration, for example 1-60 seconds, preferably 5-15 seconds and more preferably 10 seconds. The individual sounds may comprise a frequency range and may be for example arranged as so-called "third octave sounds" or "third octave bands". According to ones aspect of this embodiment, each individual third octave sound may have its own target SEL value, the total of which equals the total target SEL for the organism. When an individual third octave sound reaches its target SEL value, that sound is dropped from the loop, which continues to repeat until each sound in the loop achieves its respective target SEL.