enquête (1) bateau (1) pollution (1) plastique (1) besoin (1) pollution de la mer (1) ordures (1) document (1) distribution (1) couverture (1) Mer méditerranée (1) méthode (1) Messine (1) Composition (1) Area (1) Observations (1) Observations (1) Marine debris (1) Area (1) Transportation (1) Sea-power (1) Pollution (1) Navies (1) Naval art and science (1) Mediterranean Sea (1) Mediterranean Region (1) Marine pollution (1) Adriatic Sea (1) Sources (1) Sources (1)