11月18日，武汉渔政码头热闹非凡。随着放流箱缓缓倾斜，一尾尾胭脂鱼和长吻鮠欢快 地跃入长江怀抱。这是武汉市水生生物增殖放流（第二批）活动现场，共向长江"冬补"了40 万尾珍贵鱼苗——胭脂鱼和长吻鮠各20万尾。 这次放流的"主角"之一胭脂鱼，是长江鱼类中的"明星"。它外形漂亮，姿态优雅，是中 国特有的淡水珍稀物种，更是国家二级保护野生水生动物。成年后，它们身上出现鲜艳的胭 脂色条纹，这种"亮色"在长江鱼类中并不多见，因此赢得了"淡水美人鱼""中国美人鱼"的美 誉。不过，它们在野外成熟期较长，雄鱼要5年以上，雌鱼甚至要7年以上才能繁育后代。 "这次放流的胭脂鱼，都是我们自己繁育的。"武汉青鱼原种场负责人丁运敏介绍。该场 持续多年攻关胭脂鱼人工繁育技术，利用自己培育的亲本胭脂鱼，去年成功繁育了200万尾 鱼苗，今年又繁育了100万尾，为长江增殖放流提供了有力支撑。 武汉生态志愿者们放流胭脂鱼。 今年6月6日"全国放鱼日"，同样在武汉渔政码头放流了国家一级保护动物中华鲟10210 尾、国家二级保护动物胭脂鱼15万尾、湖北省重点保护水生野生动物长吻鮠30万尾，以及青 鱼300万尾、草鱼200万尾、鲢鱼200万尾、鳙鱼 ...

Core Points - The event on November 6 aimed to enhance the ecological restoration of the Yangtze River in Zhenjiang by releasing 6 million fish fry into the water [1][2] - The initiative is a response to the ecological impact caused by emergency reinforcement projects on the Yangtze River, specifically affecting the food resources for the Yangtze River dolphin [1] - The fish fry released include various species such as redfin, slenderhead, rosy barb, and copper fish, which were carefully selected to minimize mechanical damage during the release [1] Industry Insights - The release of fish fry is recognized as a direct and effective method for conserving aquatic biological resources and supplementing the food supply for the Yangtze River dolphins [2] - The management of the Zhenjiang Yangtze River dolphin provincial nature reserve emphasizes that this large-scale, multi-species fish fry release contributes to creating a better living environment for the dolphins, promoting a healthier and more sustainable ecosystem in the Yangtze River [2] - Over the past 15 years, the population of dolphins in the Zhenjiang section of the Yangtze River has increased by 30%, indicating a positive trend in the ecological quality of the waterway [1]

Core Viewpoint - The article highlights the dedication of Zhou Liang, the director of the Yibin Rare Aquatic Animal Research Institute, in preserving the endangered Yangtze sturgeon, emphasizing the importance of ecological restoration in the Yangtze River over the past 30 years [1][8]. Group 1: Background and Motivation - Zhou Liang, known as a "fish enthusiast," has devoted 30 years to the conservation of the Yangtze sturgeon, a critically endangered species and a national first-class protected animal [1][2]. - Zhou's passion for the Yangtze River and its aquatic life was inspired by his father, Zhou Shiw, who founded one of China's earliest private research institutions for rare fish [2][3]. - The motivation to protect the Yangtze sturgeon arose from witnessing the detrimental effects of overfishing and habitat destruction in the late 20th century [2][4]. Group 2: Challenges and Perseverance - The research institute faced significant challenges, including financial difficulties and isolation, leading to the departure of many colleagues, leaving only Zhou and his father to continue their work [5][6]. - Zhou and his father had to find innovative solutions to provide live bait for the sturgeons, even resorting to extreme measures during droughts to ensure the fish were fed [4][5]. - Despite the hardships, including a lack of resources and support, they remained committed to their mission, believing in the potential for success [5][6]. Group 3: Breakthroughs and Achievements - In 2004, Zhou's team achieved a significant milestone by successfully breeding Yangtze sturgeon in captivity, marking a turning point in the conservation efforts for this species [5][6]. - The institute has since contributed to the artificial breeding and release of over 660,000 Yangtze sturgeon into the wild, significantly aiding in the species' recovery [7][8]. - Zhou's efforts have been recognized nationally, with successful breeding trials and releases being featured in major media outlets, showcasing the importance of their work [7][8]. Group 4: Future Outlook - Zhou is optimistic about the future of the Yangtze sturgeon, believing that with ongoing conservation efforts and the implementation of a fishing ban in the Yangtze River, the species can thrive again [8]. - The institute plans to collaborate with other research organizations to further enhance the natural breeding of the Yangtze sturgeon over the next 5 to 10 years [8].

Group 1 - The article highlights the recent autumn fish stocking activities across various regions in China aimed at protecting biodiversity and maintaining ecological balance for sustainable fisheries development [1][2] - In Mudanjiang, Heilongjiang Province, a large-scale aquatic organism stocking event was conducted, releasing 5.01 million filter-feeding fish (silver carp and bighead carp) and 1.51 million herbivorous fish (grass carp) to improve water quality and control excessive aquatic vegetation [1] - In Yibin, Sichuan Province, over 690,000 rare fish species were released, including critically endangered species such as the Yangtze sturgeon and other protected fish, contributing to the conservation efforts in the Yangtze River basin [1] Group 2 - The ten-year fishing ban in the Yangtze River has shown significant results, with aquatic biodiversity continuing to recover [2] - In 2024, nearly 20 million rare protected fish species were released in the Yangtze and Yellow River basins, with record-high release numbers for first-class protected species like the Yangtze sturgeon and the Sichuan salmon [2]

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].