Last week Blue World Foundation, with the support of the Rufford Foundation, held the first workshop of the project “Participatory Management of Shark Fishermen in the Caribbean of Guatemala”. The workshop “TOOLS FOR THE IDENTIFICATION OF CARTILAGINOUS FISH”, was carried out with the support of Colombo Estupiñán-Montaño. M.Sc., Director of research at Allium Pacific Foundation. During the workshop, fishermen and volunteers were explained the necessary tools for species identification, as well as data used for the classification and identification of sharks and rays.