DESCRIZIONE
A trawl (1) adapted to be towed in a towing direction (D) along a desired towing trajectory behind a towing vessel (4). The trawl (1) comprises directional acoustic emitters (13) adapted to emit sound forwardly at an angle to the towing direction (D). The sound is adapted to startle fish (8) and provide barriers of sound (12) for the fish (8), thus forming a virtual extension of the trawl (1). The trawl (1) is used in a method of fishing.