Group 1 - The article highlights the transformation of Guangdong's marine industry, emphasizing a shift from traditional fishing to modern marine farming and technology integration [1][2] - Guangdong's marine fish seedling production reached 6.796 billion tails in 2024, accounting for approximately half of the national output, maintaining the top position in China for seven consecutive years [2] - The province has established 6,396 gravity-type deep-water cages, leading the nation in advanced marine farming equipment and technology [2] Group 2 - Guangdong's marine economy has surpassed 2 trillion yuan in production value, marking 30 consecutive years of being the national leader and representing 19% of the country's marine economic share [2]

Core Viewpoint - Guangdong is leveraging its natural resources to promote modern marine ranching, aiming to establish a strong regional brand for marine products and significantly increase its aquaculture output by 2024 [2][6]. Group 1: Event Overview - A showcase of modern marine ranching products from Guangdong was held on August 26 in Shanghai, featuring the "Guangdong Fresh Products" regional public brand [1]. - The event included culinary demonstrations and interactive tastings, blending Shanghai and Guangdong flavors [4]. Group 2: Industry Insights - Guangdong's aquaculture production is projected to reach nearly 1 million tons by 2024, accounting for nearly half of the national total, indicating that one in every two marine fish in China will come from Guangdong [2]. - The province has achieved a 5.47% year-on-year growth in marine aquaculture production, reaching 3.7683 million tons in 2024, marking the highest growth rate in a decade [7]. Group 3: Product Highlights - Featured marine products included various fish species such as the South China Sea (Nanzhou) large yellow croaker, golden pomfret, sea bass, and others, showcasing the quality and diversity of Guangdong's marine offerings [6]. - Guangdong has pioneered artificial breeding technologies for several fish species and has built 6,517 gravity-type deep-water net cages, the highest number in the country [7].

Core Insights - In 2024, Guangdong Province's total output value of agriculture, forestry, animal husbandry, and fishery reached 970.121 billion yuan, ranking among the top in the country, with significant production in fruits, vegetables, meat, and aquatic products [1] - A specialized meeting focused on modern agricultural development was held, emphasizing the need for technological support in marine ranching to ensure high-quality and sustainable development [1] Group 1: Technological Advancements - Zhang Dianchang highlighted the importance of focusing on key marine species such as golden pomfret and proposed a systematic, full-chain technological approach [2] - Recommendations included strengthening the breeding foundation, developing high-efficiency feed varieties, and reducing feed conversion ratios from 2.2 to 1.5, which could lower costs by 3-4 yuan per kilogram of fish [2] - The development of indoor controlled breeding technology and precision nutrition feed technology was also suggested to ensure year-round supply and reduce feed coefficients [2] Group 2: Collaborative Innovation - Zhang called for the establishment of a collaborative innovation platform to enhance cooperation between universities, research institutions, and enterprises [3] - The proposal included leveraging the South China Sea Fisheries Technology Innovation Alliance and supporting the operation of the "Guangdong Provincial Engineering Research Center for Core Technologies and Equipment of Modern Marine Ranching" [3] - Recommendations also included creating a "National Marine Ranch Engineering Research Center" to promote joint investment in R&D and accelerate the commercialization of research outcomes [3]

Core Viewpoint - The South China Sea Fisheries Research Institute emphasizes the need to cultivate high feed efficiency and rough feed-resistant aquatic species to reduce aquaculture costs [1][3]. Group 1: Recommendations for Marine Ranching Development - Zhang Dianchang proposed two major recommendations for the development of marine ranching in Guangdong Province [3]. - The focus should be on core species such as golden pomfret, which are key to deep-sea farming in Guangdong [5]. Group 2: Comprehensive Technological Initiatives - A full-chain industrial technology breakthrough is necessary, covering seven key areas [6]. - Strengthening the breeding of breakthrough new varieties is essential, with a focus on high feed efficiency and rough feed resistance [8]. - For instance, reducing the feed conversion ratio for golden pomfret from 2.2 to 1.5 could lower the cost by 3-4 yuan per kilogram and reduce fishmeal usage by 20% [9]. Group 3: Technological Development and Support - Development of controlled indoor breeding technology to ensure stable supply of seedlings throughout the year [10]. - Breakthroughs in equipment technology, such as adjustable gravity net cages, are crucial for ensuring the safety of facilities and fish [10]. - Precision nutrition feed technology should be developed to create suitable feed for different growth stages, further lowering feed conversion ratios [11]. Group 4: Disease Control and Brand Building - Establishing a comprehensive disease control system, including rapid pathogen detection and efficient vaccine development, is vital [11]. - Enhancing brand building to increase the value of Guangdong's marine ranching industry is also recommended [12]. Group 5: Technology Transfer and Collaboration - Strengthening deep innovation cooperation between universities, research institutions, and enterprises is necessary for technology transfer [13]. - Utilizing the South China Sea Fisheries Technology Innovation Alliance to support the development of core technologies and equipment for modern marine ranching [14]. - Establishing a national marine ranching engineering research center to promote joint investment in R&D by government and enterprises [16].