十年禁渔“期中答卷”：长江水生生物完整性指数显著提升

Core Insights - The implementation of a ten-year fishing ban in the Yangtze River has led to significant improvements in the integrity of aquatic life, with the Yangtze River dolphin population increasing to 1,426 by 2025, up from 1,249 in 2022, marking a recovery of 177 individuals [1][2] - The ban has resulted in the monitoring of 351 fish species, an increase of 43 species compared to pre-ban levels, and a notable rise in the aquatic biological integrity index [1][2] Group 1 - The Yangtze River dolphin, a flagship species, reflects the health of the Yangtze ecosystem and serves as a benchmark for evaluating the effectiveness of the fishing ban [1] - The population of unique fish species in the Yangtze has shown a positive trend, with 134 species monitored from 2021 to 2025, an increase of 25 species compared to before the ban [2] - The monitoring network indicates a favorable pattern of increasing species diversity and resource growth, with significant improvements in the distribution of certain rare species [3] Group 2 - The establishment of five protected areas for the Yangtze River dolphin has led to a growing population of over 150 individuals in these areas, with more than 10 calves born annually [2] - The monitoring of the Yangtze sturgeon has shown a sixfold increase compared to pre-ban levels, while other key species have seen resource quantities grow by 2.5 times [3] - Natural breeding activities of the round-mouthed copper fish have been observed for the first time in over 20 years, indicating a gradual recovery of this species' natural population [3]