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Chinese Journal of Applied Ecology ›› 2020, Vol. 31 ›› Issue (1): 293-300.doi: 10.13287/j.1001-9332.202001.036

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Interspecific association of main fish species in the Haizhou Bay and its adjacent waters

WANG Jiao1, ZHANG Chong-liang1, XUE Ying1, REN Yi-ping1,2, XU Bin-duo1*   

  1. 1College of Fisheries, Ocean University of China, Qingdao 266003, Shandong, China;
    2Functional Laboratory for Marine Fisheries Science and Food Production Processes, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao 266237, Shandong, China
  • Received:2019-06-19 Online:2020-01-15 Published:2020-01-15
  • Contact: E-mail: bdxu@ouc.edu.cn
  • Supported by:
    This work was supported by the Marine Science & Technology Fund of Shandong Province for Pilot National Laboratory for Marine Science and Technology (Qingdao) (2018SDKJ0501-2) and the National Natural Science Foundation of China (31772852).

Abstract: It is important to reveal the interspecific association and correlation of main species for deep understanding of fish community structure and function. Based on data collected from the bottom trawl surveys from 2013 to 2017 in the Haizhou Bay and the adjacent waters, we analyzed interspecific association of main species using Chi-square test, Jaccard index, and Spearman rank correlation coefficient. There were consistent results from χ2-test, Jaccard index, and Spearman’s rank correlation analysis. The proportion of positively correlated species pairs was high in different years, whereas the number of significant or extremely significant species pairs was low. There were 9, 6, 7, 1, 0 significant or extremely significant species pairs over different years based on Jaccard index. There were 12, 20, 13, 5, 6 significant or extremely significant species pairs over different years based on Spearman’s rank correlation coefficient. While there were inter-annual changes in related species pairs, the relationship between significant species pairs was relatively stable, indicating a relatively stable interspecific association in the main fish communities. The species within the same ecological type could replace each other in the niche, which have adapted to environmental changes in Haizhou Bay and its adjacent waters.