The present invention relates to a system that incorporates the additional connection and buoyancy means necessary for the use of rigid, metallic and/or high-weight meshes or nets, for rafts and/or cages used in the farming, keeping, confining or grouping-together of hydrobiological species. The aforesaid is achieved by means of a bracket, which allows the incorporation of the necessary buoyancy and connection elements into this type of mesh. This system has two formats, namely one that incorporates the extra buoyancy and connection components for this type of mesh in a single unit, and another designed to provide independent buoyancy and connection for this type of mesh, for use in the case of existing rafts and/or cages.
