Fish repelling apparatus using a graduated electric field

Details Fish repelling apparatus using a graduated electric field Fish repelling apparatus using a graduated electric field

A - Human Necessities

01

K

317/2

A01K 79/02 (2006.01) H05C 1/04 (2006.01)

Patent

CA 1304442

ABSTRACT OF THE DISCLOSURE An electric barrier for discouraging the passage of fishes through a natural or artificial waterway, or for repelling fishes from the vicinity of an underwater structure in a waterway. A submerged electrode array is provided for electrifying at least a portion of a waterway when energized by a plurality of electric pulse generators. The outputs of the pulse generators are connected series aiding and serially connected to the electrodes of the array so that when synchronously triggered, the outputs are in phase and additive in amplitude along the electrode array. Each pulse generator is adjustable in output amplitude so that a graduated electric field can be provided to minimize the injury to fishes repelled by the barrier.

542440

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