HUBEI AGRICULTURAL SCIENCES ›› 2025, Vol. 64 ›› Issue (5): 112-116.doi: 10.14088/j.cnki.issn0439-8114.2025.05.017

• Animal Science • Previous Articles     Next Articles

Analysis of zoobenthic community structure and fish productivity potential in the Chushandian Reservoir, Xinyang City, Henan Province in winter

LEI Qi1,2, JIANG Han-jun1,2, HAO Ting-ting1,2, MA Yuan-ye3, ZHOU Han4, WANG Jun-ru1,2   

  1. 1. College of Fisheries, Xinyang Agriculture and Forestry University, Xinyang 464000, Henan, China;
    2. Henan Provincial Modern Fishery Biotechnology Engineering Research Center, Xinyang 464000, Henan, China;
    3. Nanwan Reservoir Aquatic Station, Xinyang 464000, Henan, China;
    4. Hydrology and Water Resources Survey Bureau of Yangtze River Estuary, Bureau of Hydrology of Changjiang Water Resources Commission, Shanghai 200136, China
  • Received:2024-12-16 Online:2025-05-25 Published:2025-06-11

Abstract: In order to explore zoobenthic community structure and fish production potential of zoobenthos in the Chushandian Reservoir in winter, a survey of zoobenthos in different areas of the reservoir was carried out in February 2024. The results showed that the winter zoobenthic community structure was dominated by Chironomidae larvae and Oligochaetes. The average density of zoobenthos was 1 000 ind./m2, the average biomass of zoobenthos was 3.01 g/m2, and the average value of the Shannon-Wiener diversity index of zoobenthos was 0.93. The results of the Mantel test and the RDA indicated that NH4+-N and TN were the principal environmental factors affecting the distribution of the zoobenthic community. The fish production potential of zoobenthos in the Chushandian Reservoir in winter was 12.48 kg/hm2, which equated to an estimated fish production potential of zoobenthos in winter of approximately 1.99×104 kg.

Key words: zoobenthos, fish productivity potential of zoobenthos, Chushandian Reservoir, community structure

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