(2) Mereala piirkond on osa merealast, mis oma elustiku, hüdroloogiliste, mereliste ja biogeograafiliste omaduste ning saastekoormuse poolest erineb muust merealast., (2) A marine sub-region means a part of the marine area that differs from the remaining marine area by virtue of its biota, hydrological, marine and biogeographical features and pollution load., defineeritakse selle seaduse ulatuses, defined within the scope of this Act