论文
论文标题: Need to shift in river-lake connection scheme under the ten-year fishing ban in the Yangtze River, China
作者: Wang, Ruilong; Han, Yi; Fan, Fei; Molinos, Jorge Garcia; Xu, Jun; Wang, Kexiong; Wang, Ding; Mei, Zhigang
出版刊物: ECOLOGICAL INDICATORS
出版日期: OCT
出版年份: 2022
卷/期:
DOI: 10.1016/j.ecolind.2022.109434
论文摘要: The ecological degradation of freshwater river and lake system has developed into a global crisis. From January 2020, a ten-year fishing ban has been conducted in the Yangtze River and its affiliated lakes in China, which is an unprecedented and one of the most stringent biodiversity conservation plans in the World. However, there are still uncertainties about its restorative effect, because the river-lake isolation has not been properly addressed. To provide more references for the management of widespread sluice-controlled lakes, we constructed Ecopath models for three oxbow lakes under different management modes, compared the outputs, and manipulated through Ecosim simulations. The model comparison showed that, the lakes with longer protection, which only connected to the river in flood phase, were more developed but not more complex in ecological structure. Whereas year-round connected lake had also been simplified after the fishing ban: a 10 cm mesh net allowed small fish flowing in but restricted large fish wintering out, thus caused its biomass accumulation. According to the trophodynamic simulations, the maturity and complexity could be improved simultaneously when large individuals of river-lake migratory fish were removed from the system. Our results indicated a possible widespread food web simplification in sluice-controlled lakes of the middle and lower Yangtze floodplain during the ten-year fishing ban, and we suggested that future seasonal connecting scheme should be aiming at driving large river-lake migratory species back to the river, including enlarging net mesh and increasing water discharge in autumn and winter. Our findings make new complements to seasonal connecting methods and may benefit the conservation of floodplain lakes worldwide.
== 实验室与学会 ==
  • == 实验室与学会 ==
  • 水产品种创制与高效养殖全国重点实验室
  • 中国科学院藻类生物学重点实验室
  • 农业部淡水养殖病害防治重点实验室
  • 武汉白暨豚保护基金会
  • 湖北省海洋湖沼学会
  • 中国动物学会原生动物学分会
  • 中国动物学会斑马鱼分会
  • 湖北省暨武汉动物学会
  • 中国水产学会鱼病学专业委员会
  • 中国鱼类学会
== 平台建设 ==
  • == 平台建设 ==
  • “一带一路”海域赤潮数据库
  • 国家水生生物种质资源库
  • 国家斑马鱼资源中心
  • 中国科学院淡水藻种库
  • 中国科学院武汉生命科学大型仪器区域中心
  • 湿地生态系统观测研究野外站联盟
  • 中国科学院水生生物研究所分析测试中心
  • 中国科学院超级计算武汉分中心
  • 水生生物博物馆
== 相关网站推荐 ==
  • == 相关网站推荐 ==
  • 中国科学院
  • 农业农村部
  • 科学技术部
  • 生态环境部
  • 国家自然科学基金委员会
  • 中国科学院武汉分院
  • 湖北省科学技术厅
  • 湖北省生态环境厅
  • 湖北省农业农村厅