中新网济南9月28日电(李欣 陈宛婷)坐拥3500多公里海岸线、近16万平方公里海域，山东海洋资源得天 独厚，是中国海洋经济发展的重要增长极。2024年，山东海洋生产总值达18011.8亿元(人民币，下同)， 其中，渔业经济总产值4904亿元，海洋渔业、海洋水产品加工等7个产业增加值稳居中国首位。 从良种培育到养殖空间拓展，再到水产品增值加工，近年来，山东凭借科技创新与系统布局，完成 从"靠海吃海"到"科技耕海"的深刻跨越，守护着愈发丰盈、高质的"蓝色粮仓"。 "以前养刺参是'靠天吃饭'，现在'参优1号'耐高温，夏季高温期成活率比普通刺参平均提高25%以 上。"养殖户口中的"良种优势"，道出山东破解水产养殖难题的秘诀。 工作人员 观察海参的生长、摄食、健康等状态。青岛瑞滋集团有限公司供图 山东始终将水产新品种研发培育作为建设"蓝色粮仓"的根基。近年来，中国工程院院士包振民等行业专 家，围绕海鱼、牡蛎、扇贝等重点养殖品类，聚焦抗逆、抗病、高产等种质性能提升，积极开展水产育 种技术攻关。 其中，在大西洋鲑种质研发领域，包振民院士团队取得重大突破，成功诱导10000余尾大西洋鲑伪雄 鱼，诱导率近100%，填补了中国 ...

Core Viewpoint - Shandong is leveraging its marine resources to enhance food security and economic growth through the development of a "blue granary" concept, focusing on both land and sea food sources [2][4]. Group 1: Marine Economic Development - Shandong aims to achieve a total aquatic product output of 9.53 million tons and a fishery economic output value of 490.4 billion yuan by 2024 [2]. - The province is transitioning from traditional fishing and aquaculture to a more sustainable "marine ranching" model, which has increased per-acre yields by over 30% compared to conventional methods [3]. Group 2: Technological Advancements in Aquaculture - The launch of the world's first 150,000-ton smart fishery vessel, "Guoxin 1号2-1," represents a significant upgrade in marine ranching capabilities, designed to produce approximately 3,600 tons of high-quality fish annually [4]. - Shandong has established over 2,800 gravity-type deep-water cages and 37 large-scale deep-sea aquaculture facilities, expanding its aquaculture water volume to 4 million cubic meters [4]. Group 3: Breeding and Processing Innovations - The province leads the nation with 17 national-level aquatic breeding farms and has formed a breeding consortium involving 26 leading enterprises and 30 research teams [5]. - Shandong's processing industry is enhancing the value of marine products, with the oyster industry alone generating a total industrial chain value of 10 billion yuan through various processed products [5].

Core Insights - Fujian Province's Fuding City has abundant marine fishery resources, particularly in oyster farming, which is currently in peak harvesting season [1] Industry Overview - The oyster farming area in Shacheng Town features a picturesque landscape with organized floating buoys, where fishermen are actively engaged in harvesting operations [3] - The local processing facilities ensure that freshly harvested oysters are quickly cleaned, packaged, and weighed for distribution [3] Production and Quality - Shacheng Bay's clear water and rich natural feed create ideal conditions for oyster farming, with selected oyster varieties exhibiting faster growth, stable meat quality, and strong disease resistance [5] - Mature oysters can reach the size of an adult male's palm, making them highly sought after by buyers [5] Economic Impact - Fuding City has increased technical and financial support for the oyster industry, expanding farming areas into deeper waters [7] - The total oyster farming area is approximately 10,000 acres, with an annual production of 45,000 tons and an annual output value of about 225 million yuan, making the oyster industry a crucial source of income for local fishermen [7]

Group 1 - The core viewpoint emphasizes the importance of developing modern marine ranches as a key initiative to implement the concept of a "big food" strategy, with Guangdong province leading the way in this effort [1] - By the end of 2024, the loan balance for marine ranches in Guangdong's coastal cities reached 32.54 billion yuan, with 7.14 billion yuan specifically for seawater aquaculture, accounting for 21.9% of the total [1][3] - The People's Bank of China (PBOC) in Guangdong has actively promoted policies to support the development of marine ranches, including signing cooperation memorandums and implementing specific financial support measures [2] Group 2 - Various financial products have been introduced to meet the needs of different stages of marine ranch development, such as "Marine Fishery Loan" and "Oyster Enjoy Loan," which provide targeted financial support [3] - The average loan interest rate for marine ranches in Guangdong was 4.05% in 2024, a decrease of 21 basis points from the previous year, indicating a favorable financing environment [3] - Guangdong has launched the first national comprehensive development plan for marine fisheries, which is expected to inject strong momentum into the construction of marine ranches and create more development opportunities [4]