Core Viewpoint - Weihai is emerging as a leading hub for marine seed industry in China, significantly contributing to the national "blue granary" initiative through innovative breeding and production practices [2][3][4]. Group 1: Marine Seed Industry Overview - The greenfin horse mackerel, known as "扒皮狼," is becoming a new star aquaculture species in China, with over 90% of its fry sourced from Weihai [2]. - Weihai produces nearly 70% of the seed for turbot and 90% of flounder eggs in the Bohai Sea region, establishing itself as a critical supplier for various marine species across different seas [2]. - The annual output of high-quality aquatic seedlings in Weihai exceeds 65 billion units, with a production value surpassing 3 billion yuan, ranking first in Shandong province and among the top in the country [3]. Group 2: Challenges and Innovations - The marine seed industry faces significant challenges, including long cultivation times, high investment, and substantial risks, as evidenced by the early struggles of Weihai Yinze Biological in breeding greenfin horse mackerel [3]. - Weihai has implemented a long-term development plan for the marine seed industry, supported by four key measures: increased policy funding, enhanced breeding base construction, deepened collaboration among government, industry, academia, and research, and innovation in aquatic breeding [3][4]. - The survival rate of greenfin horse mackerel fry has improved from less than 10% to 70% after years of investment and experimentation, with a record single batch of 13.2 million fry produced in June [3]. Group 3: Expansion and High-End Breeding - Weihai aims to expand its marine seed industry by establishing high-end innovation platforms in collaboration with domestic universities and research institutions, achieving full coverage of northern aquaculture species and introducing southern species like tilapia and grouper [6][8]. - The city is also focusing on high-end species, such as white sea cucumber and seahorse, with the latter's breeding volume accounting for approximately 70% of the national total [8]. - Weihai's innovative "multi-nutrient layer comprehensive breeding model" has been promoted globally, enhancing economic benefits by over 26% in local aquaculture [10]. Group 4: Future Directions - Weihai is leading the charge towards deep-sea aquaculture, with the "森海先锋" ship set to facilitate offshore breeding operations, marking a significant step in the industry [9]. - The city plans to further develop its deep-sea aquaculture capabilities, aiming for an output of over 70 billion units in aquatic seedlings this year [10].

Core Insights - Weihai has established itself as a leading hub for marine seedling production in China, supplying over 90% of greenfin horse mackerel fry and significant portions of other marine species across various regions [1][2][4][9] Industry Overview - The marine seed industry is considered the "chip" of modern fisheries, crucial for ensuring the country's "blue granary" [4] - Weihai's annual production of high-quality aquatic seedlings exceeds 65 billion units, with a market value surpassing 3 billion yuan, positioning it at the forefront of both provincial and national rankings [4][11] Production Capabilities - The city has implemented 98 aquaculture seed projects, providing 380 million yuan in financial support, which has attracted over 1.4 billion yuan in social investment [6] - The survival rate of greenfin horse mackerel fry has improved from less than 10% to 70% after significant investment and research efforts [6][11] Innovation and Development - Weihai has established four high-end innovation platforms in collaboration with domestic universities and research institutions, covering northern aquaculture species and introducing southern species like tilapia and grouper [7][11] - The city has developed a unique multi-nutrient layer comprehensive aquaculture model, which has been promoted globally by the United Nations [14] Future Prospects - Weihai is advancing towards deep-sea aquaculture, with the "Senhai Pioneer," the world's first 80,000-ton ocean-going aquaculture vessel, set to begin operations [12] - The city aims to increase its aquatic seed production to over 70 billion units, maintaining its leading position in the industry [14]