Abstract:Based on long-term observation and systematic research of the Jiaozhou Bay Marine Ecosystem Research Station, Chinese Academy of Sciences, the over-summering strategy of Calanus sinicus was revealed, and the concept of marine zooplankton functional group was proposed firstly. The long-term change and mechanism of Jiaozhou Bay ecosystem under the influence of global change were clarified. The key processes, mechanisms and ecological impacts of the jellyfish disaster were revealed. The cause, the prediction method, and the systematic prevention and control strategy were proposed for the green tides of the Yellow Sea. The microplastic characteristics in China coastal seawater and key marine organisms were revealed. The ecosystem health and carrying capacity assessment system of China coast has been established. All the above achievements provided a solid theoretical foundation and scientific support for the ecosystem health, environmental protection, and the sustainable development of the biological resources of the China coast.