Abstract: A method for controlling the population of marine and aquatic species in an area of water includes the development of data concerning the response of various species to stimuli in different environmental conditions, and the generation of stimuli in the control area to affect the species in that area and thus control the population. The stimuli are generally sonic waves, but other stimuli such as light, radio waves, and magnetism may also be employed in place thereof or in addition thereto. The system uses a feedback monitor and computer with data concerning species response to adapt the stimuli to changing species and conditions.