Abstract: The disclosed subject matter concerns a system and related method that forms a wall of bubbles, which is used to catch fish. The system consists of or can include, at least, two boats, two or more chambers, a suction pump, a compressor and a device that forms a wall of bubbles, constituted by one or more bubble making chambers, one or more conducting chambers, conducting tubes, floating tubes and ballast, which, by forming a “net” of bubbles, enables fish to be trapped and subsequently caught. Thus, the disclosed subject matter is useful for catching fish in a more economical and ecological manner, eliminating conventional nets and reducing the level of non-target species being caught. Another advantage is an improvement in the quality of the catch. This system can be used in the fishing industry and in aquaculture.