央广网北京10月11日消息（记者刘梦雅）据中央广播电视总台中国之声《新闻和报纸摘要》报道， 全国多地近期开展秋季鱼类增殖放流活动，保护生物多样性，维持生态平衡，为渔业可持续发展增添活 力。 曲焕韬：这次活动我们放流的鱼类包括国家一级重点野生保护动物长江鲟，国家二级重点野生保护 动物圆口铜鱼、胭脂鱼、长薄鳅、岩原鲤，以及长江上游珍稀特有鱼类厚颌鲂等。 目前，长江十年禁渔取得重要阶段性成效，水生生物多样性持续恢复。2024年，长江、黄河等流域 增殖放流珍稀保护鱼类近2000万尾，长江鲟、川陕哲罗鲑等一级保护物种放流量创历史新高。 秦德源：我们投放了具有滤食性的鲢鱼和鳙鱼，一共有501万尾，它们能够滤食水中的浮游生物， 能够抑制水体富营养化。同时，投放草食性的草鱼151万尾，用来消耗水域中过多的水草，保持水流通 畅。 日前，2025年长江上游珍稀特有鱼类增殖放流活动在四川省宜宾市举行。三峡集团长江经济带生态 环境国家工程研究中心向家坝实验站站长曲焕韬介绍，此次共计放流超69万尾长江上游珍稀鱼类。 近日，黑龙江省牡丹江市在牡丹江上游水域组织开展了一场大规模水生生物增殖放流活动。牡丹江 市农业农村局科员秦德源介绍，此次 ...

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].