Hitching a fish up to a towed sonar

An active towed sonar comprising an emission antenna integrated into a submersible object called a towfish, a submersible receive antenna called a streamer and a tow cable intended to tow the towfish and the streamer, wherein the tow cable comprises a termination connected mechanically and electrically to the streamer, wherein the termination comprises means of removable mechanical and electrical connection of the towfish to the tow cable, independently of the connection of the streamer and wherein the termination comprises several vertebrae articulated to one another in series, the vertebrae having a substantially cylindrical exterior surface extending along a main axis X of the tow cable when the tow cable is taut.