A/RES/66/288 monitoring and observation of ocean acidification and particularly vulnerable ecosystems, including through enhanced international cooperation in this regard. 167. We stress our concern about the potential environmental impacts of ocean fertilization. In this regard, we recall the decisions related to ocean fertilization adopted by the relevant intergovernmental bodies, and resolve to continue addressing ocean fertilization with utmost caution, consistent with the precautionary approach. 168. We commit to intensify our efforts to meet the 2015 target as agreed to in the Johannesburg Plan of Implementation to maintain or restore stocks to levels that can produce maximum sustainable yield on an urgent basis. In this regard, we further commit to urgently take the measures necessary to maintain or restore all stocks at least to levels that can produce the maximum sustainable yield, with the aim of achieving these goals in the shortest time feasible, as determined by their biological characteristics. To achieve this, we commit to urgently develop and implement science-based management plans, including by reducing or suspending fishing catch and fishing effort commensurate with the status of the stock. We further commit to enhance action to manage by-catch, discards and other adverse ecosystem impacts from fisheries, including by eliminating destructive fishing practices. We also commit to enhance actions to protect vulnerable marine ecosystems from significant adverse impacts, including through the effective use of impact assessments. Such actions, including those through competent organizations, should be undertaken consistent with international law, the applicable international instruments and relevant General Assembly resolutions and guidelines of the Food and Agriculture Organization of the United Nations. 169. We urge States parties to 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 43 to fully implement that Agreement and to give, in accordance with Part VII of the Agreement, full recognition to the special requirements of developing States. Furthermore, we call upon all States to implement the Code of Conduct for Responsible Fisheries 44 and the international plans of action and technical guidelines of the Food and Agriculture Organization of the United Nations. 170. We acknowledge that illegal, unreported and unregulated fishing deprive many countries of a crucial natural resource and remain a persistent threat to their sustainable development. We recommit to eliminate illegal, unreported and unregulated fishing as advanced in the Johannesburg Plan of Implementation, and to prevent and combat these practices, including by the following: developing and implementing national and regional action plans in accordance with the Food and Agriculture Organization of the United Nations International Plan of Action to Prevent, Deter and Eliminate Illegal, Unreported and Unregulated Fishing; implementing, in accordance with international law, effective and coordinated measures by coastal States, flag States, port States, chartering nations and the States of nationality of the beneficial owners and others who support or engage in illegal, unreported and unregulated fishing by identifying vessels engaged in such fishing and by depriving offenders of the benefits accruing from it; as well as cooperating _______________ 43 United Nations, Treaty Series, vol. 2167, No. 37924. International Fisheries Instruments with Index (United Nations publication, Sales No. E.98.V.11), sect. III. 44 32