Apparatus for electro-fishing

A - Human Necessities – 01 – K

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A01K 79/02 (2006.01)

Patent

CA 2180109

Electro-fishing apparatus comprising a trawling net (16) which during operation is towed over the bottom, a combination of electrodes (10, 12) which, during operation, are towed over the bottom at a distance in front (14) of the net (16), and a pulse generator (28) which is connected to said electrodes (10, 12) to generate during operation a pulsed electric field in the water. The electrodes comprise at least partly a number of electrically conducting bodies (10a, 10b, 10c,...) each through a separate connection cable connected to said pulse generator (28), whereby the water contacting surface of each electrically conducting body (10) is limited such that a specific electrical resistance is created. The pulse generator (28) is embodied such that each of said electrically conducting bodies (10) can be powered separately to generate a field between the momentaneously powered electrically conducting body (10) and another electrode (12).

Un appareil pour la pêche à l'électricité comprend un filet de chalutage (16) qui, en utilisation, est tracté du fond, un ensemble d'électrodes (10, 12) qui, en utilisation, sont tractées du fond à l'avant (14) du filet (16), et un générateur d'impulsions (28) qui est connecté à ces électrodes (10, 12) afin de générer, en utilisation, un champ électrique pulsé dans l'eau. Les électrodes comprennent au moins partiellement un nombre de corps électroconducteurs (10a, 10b, 10c,...), chacun passant dans un câble de connexion séparé, raccordé au générateur d'impulsions (28), et la surface en contact avec l'eau de chaque corps électroconducteur (10) est ainsi réduite de sorte que se crée une résistance électrique spécifique. Le générateur d'impulsions (28) est renfermé de sorte que chacun des corps électroconducteurs (10) puisse être alimenté séparément afin de générer un champ entre le corps électroconducteur momentanément alimenté (10) et une autre électrode (12).

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