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Based on time-series satellite-retrieved records of the marine ecological environment from Aqua/MODIS, we investigated changes in the sea surface temperature (SST), photosynthetically active radiation (PAR), Secchi Disc depth (SDD), and chlorophyll-a concentration (Chla) in 12 Eurasian marginal seas from 2003 to 2014. Results showed that the SST increased in all 12 marginal seas, with the enclosed marginal seas (i.e., Black Sea, Baltic Sea, Japan Sea, Mediterranean Sea, and Persian Gulf) exhibiting relatively higher rates of increase. The PAR generally decreased, except in the European marginal seas, though not significantly. Similar to the changes in the SST, the SDD increased in all 12 marginal seas, with a maximum rate of 3.02%/year (or 0.25 m/year, p = 0.0003) found in the Persian Gulf. As expected, Chla generally decreased in the tropical marginal seas, but increased in the high-latitude marginal seas. The different relationships between SST and Chla changes indicate the complexity of global warming effects on marine phytoplankton in different marginal seas. [ABSTRACT FROM AUTHOR]

The level of marine environmental management is a key factor in the successful implementation of marine power strategies. The improvement in management levels of marine environments requires innovation in marine management. In other words, the transformation of marine environmental management into marine ecological environment management must be done in order to achieve sustainable development of the marine economy. As an environmental economic policy that combines both administrative and market measures, ecological compensation mechanisms have significant advantages in marine ecological environment management. Based on the study of he current development of ecological compensation mechanisms in China, through the analysis of he connotation of marine ecological civilization, existing marine ecological protection practices and marine environmental management methods, this paper posits that the current marine ecological environment management in China should be established on the basis of ecological compensation mechanisms. At present, a lack of laws and regulations for overall marine ecological environment management is the key factor restricting the practice of marine ecological environment management. Therefore, it is necessary to explore the current path of marine ecological environment management in China from the perspective of the construction of legal system of ecological compensation law, he establishment of ecological compensation fees, ecological taxes and ecological compensation fund systems, and the clear status for a marine ecological management and supervision body. [ABSTRACT FROM AUTHOR]

The governance of the global marine ecological environment is closely related to human life and needs to adopt a multisubject co-governance system. There is a lack of understanding of the need for co-governance by multiple subjects for global marine ecological environment protection. Global marine eco-environmental multisubject governance is characterised by fragmentation, lack of coordination, and other issues. It should be recognised that global marine ecological environment protection is a task for all to protect humankind's common heritage ergaomnes. At the same time, the idea of a global marine ecological environment protection led by an ocean community with a shared future should be established. A global marine ecological environment multisubject co-governance model is set up by establishing a global marine ecological environment governance model alongside a multisubject co-governance committee. [ABSTRACT FROM AUTHOR]