（原标题：10余年攻坚"良种芯片" ?，南沙"院士鱼"养成记） 0:00 凌晨五点的广州南沙鱼塘，捞鱼工人们头顶星光撒网。水波荡漾间，一条条肥美的合方鳊随着晨曦破水 而出。这些被称为"院士鱼"的优质水产品，即将以每斤10元的塘头价进入流通市场，端上消费者餐桌。 "一个7亩鱼塘，亩产可达4000-5000斤，总产值能超过30万元！"广州市诚一水产养殖有限公司生产一部 部长刘浩锋站在塘边，脸上满是喜悦。 十余年深耕育种领域，中国工程院院士刘少军团队培育的合方鳊不仅备受市场青睐，更一举打开咸淡水 育种和健康养殖新空间。从实验室的反复选育到南沙鱼塘的生态种养，再到端上消费者餐桌，这条藏 着"良种芯片"的"院士鱼"，凭借稳定优质的性状和精细化的养殖管理实现"良销"，在诚一集团达成育 种、养殖到上市的全链条产业化落地。既以科技之力激活水产产业活力，更精准契合"十五五"规划建议 中强化种源创新、深入实施种业振兴行动的战略导向。 而挖掘其"芯片"背后的育种故事，要从育种季说起。 三四月份，合方鳊迎来了一年中关键的育种窗口期。彼时南沙的清晨还带着几分凉意，湖南师范大学生 命科学学院博士后范思宇已穿好水裤，和团队成员一同下塘，开 ...

Group 1 - Sichuan Province's Zizhong County emphasizes aquaculture development, integrating technology for green transformation and creating a full-chain development model [1][2] - The county has established 6 national-level and 15 provincial-level "Healthy Aquaculture Demonstration Farms," with 22 aquaculture cooperatives [1] - In the previous year, the total aquaculture area reached 59,500 acres for engineered water bodies and 134,200 acres for rice-fish farming, resulting in a total aquatic product output of 38,400 tons and a fishery economic output value of 1.572 billion yuan [1] Group 2 - Zizhong County collaborates with local environmental and water resources departments to guide enterprises in building ecological fishery demonstration reservoirs, promoting a model of ecological and healthy fishery development [2] - The county has implemented standardized rice field transformations and promoted integrated cultivation techniques, resulting in an additional 6,000 acres of rice-shrimp integrated farming, yielding over 950 tons of shrimp with a value of 45 million yuan [2] Group 3 - The county strengthens cooperation with the Chinese Academy of Fishery Sciences to upgrade existing provincial-level breeding farms, enhancing facilities and optimizing water treatment [3] - Utilizing local fish industry cluster projects, the county aims to improve processing capabilities for aquatic products, shifting from traditional sales to deep processing, thereby increasing the added value of aquatic products [3]