设施渔业激活老产业：一条虹鳟鱼"游出"生态经济双赢路 中新网兰州9月23日电 (张瀚之 杨娜 路晓瑛)金秋时节，走进兰州市榆中县城关镇的现代化温室大棚，一 排排蓝色养殖池里，虹鳟鱼苗在循环水中灵活游动。"差1摄氏度都不行，这鱼娇气得很。""90后"负责 人刘志俊正盯着水温计，这个毕业于大连海洋大学的水产专业人才，正用技术给榆中老渔业注入新活 力。 在榆中县，一场围绕"一条鱼"的产业变革正在悄然发生。从三十多年前首次试养虹鳟鱼成功，到如今现 代化设施渔业初具规模，榆中渔业正以科技为引擎、以绿色为导向，走出一条从传统养殖向高效、生 态、品牌化转型的振兴之路。 9月下旬，兰州市榆中县城关镇的现代化温室大棚，一排排蓝色养殖池里，虹鳟鱼苗在循环水中灵 活游动。杨娜 摄 从零起步：虹鳟试养拉开渔业序幕 2023年，榆中县城关镇李家庄的闲置温室大棚里，虹鳟养殖试验成功了。"以前流水养殖，一个池子年 产几百斤；现在设施养殖，70立方水的池子能产5000斤，每立方米水就能出80至100斤鱼。"榆中县畜牧 水产技术推广中心副主任金海林近日接受采访表示。 20世纪80年代初，榆中县引进虹鳟试养成功，并于1986年突破人工繁殖技术， ...

Core Viewpoint - The article emphasizes the high-quality development of the aquatic industry in Leshan, Sichuan Province, through the implementation of a "big food concept" and a focus on green transformation, leading enterprises, smart development, and enhancing the industrial chain efficiency [1] Group 1: Industry Development - In the previous year, Leshan's total aquatic product output reached 146,500 tons, with a total fishery economic output value of 4.089 billion yuan [2] - Key species leading the province include Longfin Mullet at 15,600 tons, Catfish at 31,700 tons, and Carp at 23,000 tons [2] - The city is optimizing the structure of "famous, special, and superior" varieties and innovating aquaculture models to improve breeding efficiency [2] Group 2: Infrastructure and Technology - The city has established 30 facility aquaculture pilot projects, including land-based circular pools and factory-based recirculating water systems, covering a water body of 195,000 cubic meters [3] - Financial investments of 120 million yuan have been made to integrate resources and cultivate new business entities, resulting in the emergence of several high-value production entities [3] Group 3: Environmental Sustainability - Leshan has implemented a comprehensive aquaculture planning document to regulate production and establish designated breeding zones [4] - The city has invested 43.235 million yuan in projects aimed at improving water quality and ecological conditions, including the management of tailwater from 56,000 mu of ponds [4] Group 4: Economic Impact on Local Communities - The city has facilitated the transfer of 28,000 mu of land for large-scale pond aquaculture, benefiting over 12,000 households and generating an annual rental income of 25 million yuan [5] - Employment opportunities have been created for 5,678 individuals in fishing and breeding activities, with average annual earnings of 48,000 yuan and 24,000 yuan respectively [5]