江西瑞昌：一尾鱼的生态鱼道

Core Viewpoint - The article highlights the annual fish fry catching work in the Yangtze River's Ruichang section, emphasizing the traditional methods used by local fishermen and the significance of this activity for the breeding of the four major fish species in China. Group 1: Fish Fry Catching Process - Fishermen, led by Wang Xianzheng, utilize over 60 nets to catch fish fry during the peak season when water levels rise and temperatures increase, allowing mature fish to spawn and the eggs to drift downstream to the Ruichang section [1][2] - The catching process involves filtering out wild fish using traditional methods and tools, ensuring the selection of quality fish fry for further breeding [2] Group 2: Historical and Cultural Significance - The practice of catching fish fry in Ruichang dates back over 1300 years to the early Tang Dynasty, marking the beginning of artificial breeding for the four major fish species in China [2] - Local fishermen have developed unique techniques for catching, filtering, and transporting fish fry, which have been passed down through generations [2] Group 3: Current Production and Market Impact - Approximately 500,000 fish fry were caught in a single day, exceeding expectations, with a projected daily catch of 800,000 fry, aiming for a total of 15 million fry this year [4] - Ruichang produces around 3 million backup parent fish annually, with a total fry production of 7 billion, supplying nearly half of the national market and exporting to over 20 provinces and Southeast Asian countries [4]