摘要
西江梧州段水产种质资源保护区是珠江流域水生生物多样性保护的关键区域。监测结果显示:水质稳定(Ⅱ-Ⅲ类),水体pH值为7.1~8.08,溶解氧含量为6.12~9.49 mg/L,石油类及酚类污染物逐年递减;记录鱼类59种(含5种濒危物种)。主要环境压力为水质季节性波动、水利工程阻隔及偶发性非法捕捞。综合监测情况,建议加强监测网络与分区管理,严控人为干扰,实现保护与可持续发展的平衡,为珠江流域水产种质资源保护提供示范。
The Xijiang Wuzhou Section Aquatic Germplasm Reserve is a key zone for aquatic biodiversity conservation in the Pearl River Basin.Monitoring data indicate stable water quality(Class II-III),with a pH range of 7.1~8.08 and dissolved oxygen(DO)levels of 6.12~9.49 mg/L.Petroleum and phenolic pollutants have shown a consistent declining trend.A total of 59 fish species(including 5 endangered species)have been documented.The primary environmental stressors include seasonal water quality fluctuations,habitat fragmentation due to hydraulic engineering,and sporadic illegal fishing.Based on comprehensive monitoring findings,it is recommended to:Strengthen the monitoring network and zonal management;Strictly control anthropogenic disturbances,and achieve a balance between conservation and sustainable development,thereby serving as a model for aquatic germplasm resource protection in the Pearl River Basin.
作者
谢宗升
吴祥庆
周靓婧
蒙源
XIE Zongsheng;WU Xiangqing;ZHOU Liangjing;MENG Yuan(Fishery Science Research Institute of Guangxi Zhuang Autonomous Region,Nanning 530021,China)
基金
广西农业科技自筹经费项目“广西内陆重点渔业水域生态环境监测及评价”(编号:Z2023047)。
关键词
西江
水产种质资源
渔业环境
环境评价
Xijiang
aquatic germplasm resources
fishery environment
environmental assessment
