FIELD: agriculture.
SUBSTANCE: invention relates to the field of fish protection and is intended to prevent entering fish into hydrotechnical constructions unsafe for them. The method of fish movement control includes creation of the acoustic field in the aquatic environment. For creation of the acoustic field the underwater sound projector is used located near the hydrotechnical constructions. Frequency band of the sound projector is from units Hz to 45 kHz, with an energy density of 0.5-2 W/cm3.
EFFECT: impact on fish for its directional movement.
4 ex
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