The 72nd Session of the UN General Assembly adopted A/RES/72/73, Oceans and the law of the sea, and A/RES/72/72, Sustainable fisheries, including through the 1995 Agreement for the Implementation of the Provisions of the United Nations Convention on the Law of the Sea of 10 December 1982 relating to the Conservation and Management of Straddling Fish Stocks and Highly Migratory Fish Stocks, and related instruments, on the 5 December 2017. Examples of interest, include the proclamation of the United Nations Decade of Ocean Science for Sustainable Development (A/RES/72/73 para. 292-295) and the notable vote against A/RES/72/72 by the USA, a resolution usually adopted by consensus without a vote.
Action on the draft BBNJ resolution, International legally binding instrument under the United Nations Convention on the Law of the Sea on the conservation and sustainable use of marine biological diversity of areas beyond national jurisdiction, Doc. A/72/L.7, was postponed, pending a review of its programme budget implications.
For more information see the UN press release here and UNGA 72nd Session resolutions here. The Draft BBNJ resolution (A/72/L.7) may be found here, and the programme budget implications (A/C.5/72/18) here.