Paravane for a barrier towed by a vessel (VE), wherein the paravane comprises: - a floating body ; - a main skirt suspended below the floating body , wherein the main skirt is defined with a longitudinal direction (A20) between its front end and its rear end ; - an upper lamella having a first point secured to the front end of the main skirt , a second point secured to the rear end of the main skirt and a third point provided at a distance from the main skirt ; - a lower lamella having a first point secured to the front end of the main skirt below the upper lamella , a second point secured to the rear end of the main skirt below the upper lamella and a third point provided at a distance from the main skirt ; - a front towing interface (FTI) connected to the third point of the upper lamella and the third point of the lower lamella ; wherein the floating body , the main skirt , the upper lamella and the lower lamella are made of one or more flexible materials; and wherein the upper lamella has a skirt facing edge defined as the edge between the first point and the second point , wherein the skirt facing edge is secured continuously or at intervals to the main skirt ; wherein the paravane comprises at least one intermediate lamella having a first point secured to the front end of the main skirt between the upper lamella and the lower lamella , a second point secured to the rear end of the main skirt between the upper lamella and the lower lamella and a third point provided at a distance from the main skirt , wherein the third point is connected to the front towing interface (FTI); characterized in that : - the paravane comprises a plurality of stiffening plates fastened to the main skirt ; - the stiffening plates have a height (H25) being lower than a height (H30) between the lamellae ; - the stiffening plates are fastened to the main skirt between the lamellae . - a floating body ; - a main skirt suspended below the floating body , wherein the main skirt is defined with a longitudinal direction (A20) between its front end and its rear end ; - an upper lamella having a first point secured to the front end of the main skirt , a second point secured to the rear end of the main skirt and a third point provided at a distance from the main skirt ; - a lower lamella having a first point secured to the front end of the main skirt below the upper lamella , a second point secured to the rear end of the main skirt below the upper lamella and a third point provided at a distance from the main skirt ; - a front towing interface (FTI) connected to the third point of the upper lamella and the third point of the lower lamella ; wherein the floating body , the main skirt , the upper lamella and the lower lamella are made of one or more flexible materials; and wherein the upper lamella has a skirt facing edge defined as the edge between the first point and the second point , wherein the skirt facing edge is secured continuously or at intervals to the main skirt ; wherein the paravane comprises at least one intermediate lamella having a first point secured to the front end of the main skirt between the upper lamella and the lower lamella , a second point secured to the rear end of the main skirt between the upper lamella and the lower lamella and a third point provided at a distance from the main skirt , wherein the third point is connected to the front towing interface (FTI); characterized in that : - the paravane comprises a plurality of stiffening plates fastened to the main skirt ; - the stiffening plates have a height (H25) being lower than a height (H30) between the lamellae ; - the stiffening plates are fastened to the main skirt between the lamellae . - the paravane comprises a plurality of stiffening plates fastened to the main skirt ; - the stiffening plates have a height (H25) being lower than a height (H30) between the lamellae ; - the stiffening plates are fastened to the main skirt between the lamellae . <EOS>