The invention relates to fishing industry technology and can be used for trawling. The acoustic fish concentrator is made up of two parts. The first part is in the form of a sturdy, cylindrically shaped body, the ends of which are provided with covers and the tail portion of which accommodates an annular stabilizer. The second part comprises towing devices and is in the form of a quick-release deflector joined flush with the contours of the sturdy body. The nose portion of the deflector contains an aperture, opposite which an antenna rotatable in increments of 10° is arranged. Blades are arranged in the cavity of the annular stabilizer, with one edge of said blades being axially connected to the body of a carrier and to a stabilizing ring, and a second edge having a pin which is countersunk in a preformed groove in an additional ring. Upon rotation of the additional ring, all of the blades turn around to a required angle relative to the generatrices of the carrier surfaces and are subsequently fixed. Equipment providing for operation of the antenna is arranged within the sturdy body. Switches are arranged on the inside walls of the covers of the sturdy body. The switch spindles extend beyond the surface of the covers in such a way as to ensure the tightness of the sturdy body and can be used to control the antenna operating modes. The invention provides for operative changing of acoustic signal programs and of the speed of rotation of the concentrator.Linvention se rapporte aux techniques de pêche et peut être utilisée dans la pêche au chalut. Le concentrateur acoustique de poissons se compose de deux parties. La première consiste en un corps solide de forme cylindrique, et les extrémités du corps comportent des couvercles, la partie arrière comprenant un stabilisateur annulaire. La seconde partie comprend un équipement dattelage et se présente sous forme dun carénage rapidement démontable et venant se fixer au niveau des profils du corps solide. La partie avant du
