The fish behaviour is governed by the spatial, not homogenous pulsed electric field (10, 11) formed in the water environment, with the non-linear intensity gradient, at the direct current (12, 13) of the specific configuration put to it, moreover the value of the gradients of the intensity of the pulsed electric field, the length of the working impulses, their frequency and the pauses between them are matched with regard to the required behaviour of the fish. The device controlling the fish behaviour includes electrodes (1, 3, 5, 7) that generate the negative impulse and electrodes (2, 4, 6, 8) that generate the positive impulse; the said electrodes are grouped according to the law of random numbers and powered by the converting system of a commutator, a steering unit (CU) , a feeding module (US) , a medium stage (PB) , a power module with the commutator (PM) , a keyboard with a LCD (CI) .
