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Sustainable development of marine resources requires a robust national coastal and ocean policy and harmonization of environmental management systems in areas of overlapping interests among nations. This is becoming increasingly important in the efforts of governments worldwide. Critical issues related to the exploitation of natural resources and the degradation of marine ecosystems, coupled with global crosscutting environmental issues such as climate change and climate-related hazards, require forging cross-border cooperation and international consensus on ensuring ecosystem-based approach principles in marine management and maritime domain awareness and security as reflected in the U.N.’s Sustainable Development Goals. Increasing the scale of marine planning processes entails increased cooperation on humankind’s shared endowment of global oceans and interconnected marine systems. As a result, interactions across the world are multiplying, which intensifies the dialogue of civilisations. The following exploration of a roadmap for developing an Integrated Marine/Maritime Policy in the Asia-Pacific region reveals enhanced opportunities for maintaining environmental integrity and sustainability in transboundary areas while considering local, regional, and global socio-economic and environmental challenges. This is a science-policy analysis of the marine-related practices of the region under consideration. The key here is to improve environmental safety and strengthen global security because of coherent actions jointly adopted in a setting of mutual respect and unity by a shared purpose to create reliable foundations for sustainable development in the Asia-Pacific region.

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Inter-year variability of hydrochemical indicators of water quality was studied for the main rivers of Primorye: Ussuri, B.Ussurki, Razdolnaya, as well as the Knevichenka river with the maximum anthropogenic load. Analysis was based on the data obtained at the stations of the GSN Primorsky UGMS in 2001-2017. A significant increasing the average annual concentration of nitrates has been detected both in the relatively clean rivers Ussuri and B. Ussurka, as well as in the rivers Razdolnaya and Knevichenka contaminated due to human activities. The increase is correlated with the volume of mineral fertilizers used, indicating the intensification of agriculture in the region as a cause of deterioration in water quality. The inter-annual variability of phosphate concentrations is non-linear, possibly due to changes in the composition of detergents, which are an important source of phosphates in surface waters. A significant trend of growth of COD, found in the relatively clean rivers Ussuri and B. Ussurka, can be associated with both an increase in annual water runoff and a change in the structure of the land field.

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