Group 1 - The core viewpoint is that China's marine economy has significant growth potential, with a national marine production value reaching 5.1 trillion yuan in the first half of the year, a year-on-year increase of 5.8% [1] - Coastal cities in China have not fully leveraged their marine economic potential, facing challenges in industrial structure, technological innovation, ecological pressure, and regional development coordination [1] - A new development model that integrates land and sea, regional collaboration, and innovation-driven strategies is necessary to transform marine resource advantages into economic competitive advantages [1] Group 2 - The construction of a global marine city cluster is essential for creating a new collaborative development pattern, emphasizing the need for differentiated advantages among cities and better integration of land and sea [2] - The Guangdong-Hong Kong-Macao Greater Bay Area aims to develop a "marine golden triangle" centered around Shenzhen, Hong Kong, and Guangzhou, establishing a comprehensive industrial chain and a global marine economic platform [2] - The modernization of the marine industry system is crucial, focusing on upgrading traditional industries and fostering emerging sectors such as marine biomedicine, marine new energy, and high-end marine equipment manufacturing [2] Group 3 - Expanding the marine sector's openness and deepening international cooperation is vital for integrating high-quality marine economic development with global economic trends [3] - Localized seed supply through fishery cooperation demonstration zones can enhance both domestic and international marine collaboration [3]