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Chinese Journal of Applied Ecology ›› 2025, Vol. 36 ›› Issue (7): 2230-2238.doi: 10.13287/j.1001-9332.202507.034

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Zooplankton community structure and its influencing factors in the Henan section of the Yellow River

LU Size1, LI Chenlin2, ZHOU Zhiguo1, LIU Qian1, GAO Yunni1,3,4, DONG Jing1,3,4, ZHANG Jingxiao1,3,4, YUAN Huatao1,3,4, LI Xuejun1,3,4, GAO Xiaofei1,3,4*   

  1. 1College of Fisheries, Henan Normal University, Xinxiang 453007, Henan, China;
    2Ecological Environment Monitoring and Scientific Research Center, Yellow River Basin Ecology and Environment Administration, Ministry of Ecology and Environment, Zhengzhou 450000, China;
    3Field Scientific Observation and Research Station of Ecosystems in Danjiangkou Reservoir, Nanyang 474450, Henan, China;
    4National Ecological Quality Comprehensive Monitoring Station (Hebi Station), Hebi 458000, Henan, China
  • Received:2024-12-18 Accepted:2025-05-26 Online:2025-07-18 Published:2026-01-18

Abstract: We conducted a sampling survey of zooplankton at typical sections (mainstream, tributaries, and reservoirs) of Henan section of the Yellow River in July 2021, and analyzed the zooplankton community structure and key influencing factors. The results showed that a total of 32 genera and 47 species of zooplankton were recorded, with the density ranging from 0.4 ind·L-1 to 612.8 ind·L-1. The dominant species were Brachionus calyciflorus, Keratella cochlearis, and Asplanchna priodonta. The mainstream exhibited higher community diversity but lower abundance, while the tributaries had lower diversity but higher abundance, indicating high spatial heterogeneity in the zooplankton community structure. Resource use efficiency of zooplankton in the tributaries was significantly higher than that in the mainstream and reservoirs, reflecting the richness and high quality of food resources for zooplankton in the tributaries. The main environmental factors influencing the zooplankton community structure were electrical conductivity, ammonium nitrogen, and the permanganate index.

Key words: zooplankton, community ecology, resource utilization efficiency, Yellow River