Core Viewpoint - Shandong Rizhao is transforming its marine economy from traditional fishing to sustainable modern fisheries, focusing on marine ecological restoration and the development of marine ranching, which has led to increased income for fishermen and enhanced efficiency in the fishing industry [1][2]. Group 1: Marine Ranching Development - Rizhao has established 8 national-level marine ranching demonstration zones and 14 provincial-level projects, with over 1,000 deep-water anti-wind net cages and 2 large intelligent truss net cages, aiming for marine production value to exceed 30% of the regional GDP by 2024 [1][2]. - The introduction of artificial reefs, such as a 3-meter long, 10-ton hollow concrete cube, has facilitated the growth of algae, attracting fish and promoting the recovery of marine biological resources [2][3]. Group 2: Ecological Restoration and Sustainable Practices - The local government has implemented measures like bottom sowing and releasing fish to gradually restore the marine ecological environment, resulting in a resurgence of fish species such as blackhead fish and sea bass [3][4]. - The practice of multi-species aquaculture has been adopted, allowing for year-round sales of various products and creating a beneficial cycle that reduces water eutrophication [3][4]. Group 3: Integration of Tourism and Fishing - The local community is capitalizing on the improved marine resources by developing marine tourism, including sea fishing experiences, which has led to an annual income exceeding 200 million yuan from the sea fishing industry [4][5]. - The establishment of accommodations and dining options related to fishing culture has transformed the area into a comprehensive coastal tourism destination [5]. Group 4: Technological Advancements in Aquaculture - The introduction of advanced aquaculture technologies, such as the "Blue Granary" project for salmon farming, is expected to yield 900 tons of salmon, showcasing the shift towards modern, technology-driven aquaculture practices [6][7]. - Smart systems are being utilized to monitor environmental conditions in real-time, enhancing the efficiency and sustainability of fish farming operations [6][7]. Group 5: Future Prospects and Industry Growth - The collaboration with research institutions has led to successful breeding and industrialization of species like the swollen-belly seahorse, with a survival rate of over 90% for seedlings, indicating a promising future for marine resource enhancement [7]. - The local government aims to leverage marine ranching to protect marine resources and promote economic development, with a target of producing 3.5 tons of dried seahorse and 20.758 million live seahorses by 2024 [7].