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Characteristics of zooplankton distribution and response to stress factors in Lake Dianchi estuary
  • +4
  • Shan Xu,
  • Zhao Kaisong,
  • Hu Qingmei,
  • Lin Yuanyuan,
  • Xiangrong Wang,
  • Liang Shen,
  • Zheng Zhao
Shan Xu
Kunming University

Corresponding Author:[email protected]

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Zhao Kaisong
Kunming University
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Hu Qingmei
Kunming University
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Lin Yuanyuan
Kunming University
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Xiangrong Wang
Kunming University
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Liang Shen
Kunming University
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Zheng Zhao
Kunming University
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Abstract

This study investigated zooplankton distribution in Lake Dianchi, focusing on river mouths and their ecological conditions, using environmental DNA (eDNA) technology. It analyzed zooplankton diversity during the dry and wet seasons, employing alpha and beta diversity indices to assess community differences. A total of 24 species from 22 genera and 17 families across two phyla were identified, with Arthropoda (54%) and Rotifera (46%) dominating. Daphniaceae made up 20.8% of arthropods. β-diversity analysis showed a 37% difference between seasons and significant differences between estuaries: 61.4% in the dry season and 42.1% in the wet season. Eucyclops macruroides dominated peri-urban estuaries, while Arctodiaptomus altissimus pectinatus prevailed in urban, agricultural, and central lake areas. Redundancy analysis identified total nitrogen (TN) as the main factor affecting zooplankton diversity, with the highest TN levels in suburban estuaries. The findings provide insights for ecological restoration efforts in Lake Dianchi estuaries.
16 Sep 2024Submitted to Ecology and Evolution
16 Sep 2024Submission Checks Completed
16 Sep 2024Assigned to Editor
29 Oct 2024Reviewer(s) Assigned