En los sistemas marinos y estuarios, se seleccionarán una o varias de las siguientes especies: Carcinus maenas, Cancer pagurus, Eriocheir sinensis, Liocarcinus depurator, Liocarcinus puber, Crangon crangon, Homarus gammarus, Palaemon adspersus o gambas de la familia de los peneidos, como Penaeus japonicus, Penaeus kerathurus o Penaeus semisulcatus.
in marine and estuary systems areas, one or more of the following species shall be selected: Carcinus maenas, Cancer pagurus, Eriocheir sinensis, Liocarcinus depurator, Liocarcinus puber, Crangon crangon, Homarus gammarus, Palaemon adspersus or penaeid shrimp species namely Penaeus japonicus, Penaeus kerathurus, Penaeus semisulcatus.