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<p>In winter, the Yellow Sea ecosystem is regulated by the Yellow Sea Warm Current (YSWC) and Yellow Sea Coastal Current (YSCC), which can cause biocenotic shifts. However, the characteristics of fishes and microorganism and their environmental responses remain unclear. Totally 47 samples from 17 stations near Sushan Island (Yellow Sea) were selected and grouped into three clusters. Alpha diversity value was the highest at high-nutrient stations, with more complex and stable co-occurrence networks. Greater fish species richness enhanced their functional strength and breadth. Prokaryotic and eukaryotic communities were strongly affected by environmental changes. After controlling these changes, community assembly was dominated by stochastic processes. This study clarifies fish and microorganism interaction mechanisms under complex winter hydrology, which will help regional seasonal ecosystem research.</p>

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Exploring Changes in Fish Communities from the Perspective of Functional Diversity: A Case Study on Interrelationship Between Fishes and Microbial Communities in Yellow Sea, Northern China

  • 期刊论文

  • 发表日期：

    2026年5月22日

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  • Chunhui Feng,
  • Jiyuan Wan,
  • Bin Zhou,
  • Hui Guo,
  • Jiyao Yang,
  • Wangxinze Shu,
  • Zhengang Liu,
  • Xumeng Cui,
  • Tianjing Shi,
  • Jun Wang,
  • Xiaochong Shi,
  • Yong Jiang

摘要

In winter, the Yellow Sea ecosystem is regulated by the Yellow Sea Warm Current (YSWC) and Yellow Sea Coastal Current (YSCC), which can cause biocenotic shifts. However, the characteristics of fishes and microorganism and their environmental responses remain unclear. Totally 47 samples from 17 stations near Sushan Island (Yellow Sea) were selected and grouped into three clusters. Alpha diversity value was the highest at high-nutrient stations, with more complex and stable co-occurrence networks. Greater fish species richness enhanced their functional strength and breadth. Prokaryotic and eukaryotic communities were strongly affected by environmental changes. After controlling these changes, community assembly was dominated by stochastic processes. This study clarifies fish and microorganism interaction mechanisms under complex winter hydrology, which will help regional seasonal ecosystem research.