Volume 2 Issue 5
Oct.  2006
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WANG Xuefeng, LI Chunhou, JIA Xiaoping, ZHAO Hanqu, DAI Ming. Microzooplankton grazing on phytoplankton in spring in Daya Bay, China[J]. South China Fisheries Science, 2006, 2(5): 30-35.
Citation: WANG Xuefeng, LI Chunhou, JIA Xiaoping, ZHAO Hanqu, DAI Ming. Microzooplankton grazing on phytoplankton in spring in Daya Bay, China[J]. South China Fisheries Science, 2006, 2(5): 30-35.
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Microzooplankton grazing on phytoplankton in spring in Daya Bay, China

  • 1.

    Key Lab.of Marine Fishery Ecology Environment and Pollution Monitoring & Control Techniques, South China Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou 510300, China

  • 2.

    Fisheries College of Guangdong Ocean University, Zhanjing 524025, China

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  • Received Date: May 07, 2006
  • Revised Date: July 04, 2006
    Graphical Abstract
    • Abstract

  • With dilution technique, this paper studied the microzooplankton grazing rate (μ) and the phytoplanton growth rate (g) of Daya Bay in March, 2005. Grazing experiments were conducted at 5 stations within the Bay. The phytoplankton growth rate and microzooplankton grazing rate is about 0.16~1.14 per day, 0.33~1.74 per day, respectively. The percentage of microzooplankton grazing pressure on the phytoplankton standing crop is 47%~258% per day. And the percentage of potential primary production ingested by microzooplankton per day is about 70%~330%. The results showed that Daya Bay water is the typical subtropical water with high μ and g, and the herbivory of microzooplankton and growth of phytoplankton are also influenced by the currents and other factors. Compared with the similar studies in other bays around the world, the grazing pressure of microzooplankton in Daya Bay is at the higher levels.

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