Scholarlink

<p>This study compared zooplankton community structure and its relationship with environmental factors in coastal rivers of eastern and western Guangdong, based on a survey of 18 sampling sites across nine rivers in March 2021. The study found significant differences in key environmental parameters (water temperature, pH, dissolved oxygen) between the rivers in eastern and western Guangdong. However, no corresponding geographical pattern was detected in the α-diversity indices of the zooplankton communities. Notably, zooplankton diversity in western Guangdong rivers was significantly positively correlated with salinity and total phosphorus (TP), with the Pielou evenness index showing particular sensitivity to TP. Self-organizing map (SOM) analysis demonstrated distinct geographical clustering patterns in zooplankton communities between the two regions. Furthermore, the random forest model identified 15 bioindicators whose abundances were closely associated with environmental factors such as water temperature and nutrient levels. According to the study, industrial pollution and hydrological regulation are the primary factors affecting rivers in eastern Guangdong, while agricultural non-point source pollution plays a more significant role in western Guangdong. These findings highlight potential associations between abiotic factors, human activities, and zooplankton communities, providing insights into the differential regulatory mechanisms that may operate in these systems.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Contrasting zooplankton communities in coastal rivers of eastern and western Guangdong, China: relationships with environmental factors

  • 期刊论文

  • 发表日期：

    2026年4月10日

查看全文
  • Jianwei Liang,
  • Mengfan Wang,
  • Xiaofeng Shao,
  • Shanshan Yu,
  • Qianfu Liu,
  • Chao Wang,
  • Yuan Gao

摘要

This study compared zooplankton community structure and its relationship with environmental factors in coastal rivers of eastern and western Guangdong, based on a survey of 18 sampling sites across nine rivers in March 2021. The study found significant differences in key environmental parameters (water temperature, pH, dissolved oxygen) between the rivers in eastern and western Guangdong. However, no corresponding geographical pattern was detected in the α-diversity indices of the zooplankton communities. Notably, zooplankton diversity in western Guangdong rivers was significantly positively correlated with salinity and total phosphorus (TP), with the Pielou evenness index showing particular sensitivity to TP. Self-organizing map (SOM) analysis demonstrated distinct geographical clustering patterns in zooplankton communities between the two regions. Furthermore, the random forest model identified 15 bioindicators whose abundances were closely associated with environmental factors such as water temperature and nutrient levels. According to the study, industrial pollution and hydrological regulation are the primary factors affecting rivers in eastern Guangdong, while agricultural non-point source pollution plays a more significant role in western Guangdong. These findings highlight potential associations between abiotic factors, human activities, and zooplankton communities, providing insights into the differential regulatory mechanisms that may operate in these systems.