p. 195 - 216 ELECTROPHORESE ZONALE APPLIQUEE AUX RECHERCHES DE SISTEMATIQUE DANS UN LABORATOIRE AU BORD DU NAVIRE M. Crismaru Institut Roumain de Recherches Marines Constanta Abstract The aim of this paper includes the possibilities of applying the electrophoresis to the fish study in the working conditions on board a trawler in operation. The tests used species already well-known from the taxonomic view-point. The results got on board the vessel have been cheked up by similar analyses carried out at our institute, on the samples collected in the fishing area preserved at -20 grade C. It has been concluded it is possible to conduct electrophoresis analyses on board a trawler thus enlarging the future of the fishery resources research.