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Chinese Journal of Applied Ecology ›› 2000, Vol. ›› Issue (6): 935-938.

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Correlation of photoplankton and its environmental factors in Rushan bay

CUI Yi, CHEN Bijuan, MA Shaosai   

  1. Yellow Sea Fisheries Research Institute, Chinese Academy of Fisheries Sciences, Qingdao 266071
  • Received:1998-10-12 Revised:1998-12-14 Online:2000-12-25

Abstract: The relationship between photoplankton and its environmental factors in Rushan Bay was studied from June to September,1995.The result shows that there existed a negative correlation between the number of photoplankton and the content of inorganic nutrients.The correlation coefficients for inorganic nitrogen and phosphorus were -0.67 and -0.80,respectively.The dissolved oxygen and chlorophyll-a were positively correlated to photoplankton,and their correlation coefficients were 0.92 and 0.85 respectively.Based on N/P analysis,the content of inorganic nitrogen was relatively short to the reproductive growth of photoplankton during experimental months,except for the last ten days of August.