农业农村部：长江禁渔逐渐见效，但多样性水平仍存在不足

Core Viewpoint - The Yangtze River fishing ban, initiated in 2021 for a ten-year period, has led to a gradual recovery of fish resources and biodiversity, although concerns about community structure imbalance persist [1][3]. Group 1: Fishing Ban Impact - The fishing ban has resulted in increased fish populations in certain areas, attributed to three main factors: limited natural reproduction in closed lakes, seasonal fish aggregation in open waters, and long-term feeding leading to habituation [2][3]. - The Ministry of Agriculture and Rural Affairs indicates that fish resources will remain within the carrying capacity for the foreseeable future, despite the ongoing recovery of biodiversity [3][5]. Group 2: Biodiversity and Monitoring - The 2024 report on aquatic biological resources shows a slow recovery of fish species and diversity, with the integrity index still rated as "poor" [3][5]. - Since the ban, 344 native fish species have been monitored, an increase of 36 species compared to the pre-ban period, with significant recovery noted in key economic fish species [5]. Group 3: Future Measures and Concerns - The government plans to implement targeted measures and emergency policies to address potential imbalances in fish populations, including expert assessments and tailored management strategies for specific water bodies [4][5]. - The long-term recovery of fish resources is emphasized, with comparisons drawn to the Qinghai Lake fishing ban, which has shown slow progress over 24 years [4].