长江“鱼满为患”？保护之路犹长

Core Viewpoint - The Yangtze River's ecological restoration efforts, including the ten-year fishing ban, have shown positive results in species diversity and population recovery, but significant challenges remain in restoring the overall aquatic ecosystem and biodiversity [1][2][3] Group 1: Ecological Restoration Progress - Since the implementation of the Yangtze River Protection Strategy and the ten-year fishing ban, there has been an increase in fish species diversity, with 344 species monitored from 2021 to 2024, an increase of 36 species compared to 2017-2020 [1] - The integrity index of aquatic organisms in the river has been improving, indicating that previously hard-to-monitor species are benefiting from conservation efforts [1] Group 2: Ongoing Challenges - Despite the increase in monitored species, 99 out of 443 historically distributed fish species remain unmonitored, highlighting the ongoing crisis for rare species such as the Chinese sturgeon, which has not been naturally reproduced for eight years [2] - The aquatic biological integrity index is still rated as "poor," indicating that the restoration and protection of the ecosystem is far from complete [2] Group 3: Complexity of Ecosystem Recovery - The recovery of the Yangtze River's ecosystem is complex, with different species exhibiting varied survival strategies and habitat preferences, reflecting the heterogeneity of the aquatic environment [2][3] - Effective conservation strategies must be developed to ensure the connectivity of aquatic habitats, allowing species to migrate freely and select suitable environments for different life stages [3]