FIELD: agriculture.
SUBSTANCE: invention relates to the field of bioacoustics, in particular, to the management of fish behavior. Method of hydroacoustic displacement in a condition of allure light effect lies in creation, intensification and radiation in the direction of the fish of hydroacoustic information, energetic and bioresonance signals. As the energetic signals white noise is used. Also sharp and multiple changes of frequency and level of signal from minimum to maximum for the entire range of frequencies of maximum acoustic sensitivity of fish from 20 Hz to 2 kHz. As the information signals the signals of predator are used at the moment of attack on the victim. Predator signals have a Doppler frequency change. Bioresonance tone signals are in the range of frequencies from 3 Hz to 12 Hz. They have the form of energetic signals modulating by the amplitude and phase of the type of white noise. All kinds of signals are not less than 6 dB above the level of ambient noise of natural and anthropogenic origin. The emission of signals is carried out according to the law of random numbers. The period of the radiation of signals is alternating with intervals of time of signal absence time. The time intervals of signal absence do not exceed the time of repeated approach of the fish to a controlled water boundary.
EFFECT: effective management of fish behaviour.
11 dwg
