As one kind of usufructuary rights, the effects of property rights of the RUSA include exclusiveness, priority and retroactive effect.
海域使用权作为一种用益物权，其物权效力包括排他效力、优先效力和追及效力。
This article is to systematically explore the Right of Using Sea Area (RUSA) - the core conception in the management system of using sea area, from the point of view of civil law especially the Real Right theory.