长江江豚人工饲养繁殖技术体系
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【中国青年报】三代科研人守护一江碧水
Zhong Guo Qing Nian Bao· 2025-08-11 03:04
Core Viewpoint - The report highlights the positive trend in the recovery of aquatic biological resources in the Yangtze River Basin, emphasizing the importance of the ten-year fishing ban initiated in 2020 for ecological restoration [3][15]. Group 1: Aquatic Biological Resources - The Ministry of Agriculture and Rural Affairs, along with other departments, released a report indicating an overall improvement in the integrity index of aquatic biological resources in the Yangtze River Basin [3]. - The report notes that the Yangtze River's ecological environment has significantly improved, with clearer waters and the reappearance of rare species [3][15]. - The ten-year fishing ban has led to a noticeable increase in fish populations and sizes, with average weights of certain species increasing by up to 265.17% [15][16]. Group 2: Historical Context and Conservation Efforts - The history of aquatic species in the Yangtze River is marked by significant losses, including the functional extinction of the Yangtze River dolphin and sturgeon due to environmental degradation [7][17]. - The report recounts the story of "Qiqi," the last captive Yangtze River dolphin, which provided valuable research data before its death in 2002 [5][6]. - The ten-year fishing ban was initiated in response to the drastic decline in aquatic species, with the aim of restoring their populations and habitats [8][17]. Group 3: Research and Monitoring - Research teams have been actively monitoring fish populations and habitats, with significant data collection efforts in the Yangtze River and its tributaries [11][12]. - Recent findings include the successful breeding of the Yangtze sturgeon, previously thought to be extinct in the wild, marking a significant breakthrough in conservation efforts [16]. - The report emphasizes the need for continued artificial interventions and habitat restoration to support the recovery of endangered species like the Chinese sturgeon [17].