Core Viewpoint - The article highlights the positive ecological changes in the Yangtze River basin, particularly in Luzhou, due to the ten-year fishing ban, which has led to increased biodiversity and improved water quality [4][7][8]. Group 1: Ecological Improvements - Since the implementation of the fishing ban, the number of monitored fish species in Luzhou has increased by 13, and the catch per unit effort (CPUE) has risen by 46.3% [6][7]. - The water quality of the Yangtze River is rated as excellent, with 100% of the monitored national control sections classified as grade I-II, and the main river has maintained grade II water quality for four consecutive years [4][6]. - The integrity index of aquatic biological resources in the Luzhou section has improved by two grades compared to pre-ban levels, with key protected species like the Yangtze sturgeon showing significant increases in occurrence rates [8]. Group 2: Fishermen Transition and Employment - A total of 1,429 fishermen have transitioned to land-based employment, with 788 fishing boats retired, and 791 fishermen have achieved stable employment through various support measures [5][6]. - The local government has implemented a pension insurance subsidy program for retired fishermen, providing an annual subsidy of no less than 2,500 yuan per person for an average of 15 years [6][10]. Group 3: Law Enforcement and Monitoring - Luzhou has enhanced its law enforcement capabilities against illegal fishing by deploying 40 high-definition cameras with thermal imaging technology for 24/7 monitoring of key water areas [9]. - The city has established a collaborative enforcement mechanism with neighboring regions to strengthen joint regulatory efforts and protect the river ecosystem [10].

Core Viewpoint - The article highlights the successful artificial breeding of the rare freshwater fish species, the "胭脂鱼" (Yanzhi fish), at the Wuhan Qingyu Breeding Farm, emphasizing the importance of conservation efforts for this endangered species [4][17]. Group 1: Breeding Process - The breeding process involves technicians carefully extracting eggs from female Yanzhi fish and mixing them with male sperm to facilitate fertilization, resulting in approximately 1 million fry being produced [4][8]. - The farm has successfully relocated 43 mature Yanzhi fish to breeding pools to enhance the breeding program [4][8]. Group 2: Species Characteristics - The Yanzhi fish is a unique and beautiful species native to China, known for its vibrant coloration and elegance, earning it nicknames like "freshwater mermaid" [12][13]. - The species has a long maturation period, with males maturing at over 5 years and females at over 7 years, primarily spawning in upstream areas of the Yangtze River [13]. Group 3: Conservation Efforts - The Yanzhi fish population has drastically declined, with only 413 individuals recorded in the Yangtze River from 2017 to 2021, indicating a lack of natural reproduction [17]. - The Wuhan Qingyu Breeding Farm has been actively involved in the artificial breeding of Yanzhi fish for several years, contributing significantly to local conservation efforts [17].