|  |
Program |
 |
| |
 |
General Session 3: Biological oceanography & global change |
| |
|
|
Effect of eutrophication on phytoplankton growth and microzooplankton grazing in the estuarine and coastal waters of Sanya, South China Sea.
GS3-77
liping Zheng* , Institute of Deep-sea Science and Engineering, Chinese Academy of Sciences
Hongbin Liu, Division of Life Science, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong SAR, China
Hongmei Jing, Institute of Deep-sea Science and Engineering, Chinese Academy of Sciences, Sanya 572000, China
Presenter Email: lipingzheng@idsse.ac.cn
|
To examine monthly variations of phytoplankton community and the grazing effect of microzooplankton on phytoplankton and picophytoplankton, dilution experiments were conducted monthly at two sites (coastal north South China Sea: SL1 and sanya estuary: SL3) throughout a whole year. The results showed that the phytoplankton community accounted more at SL3 than at SL1. Diatom, especially nano-level diatom, was dominant at the both stations. Synechococcus was the second abundant species and their abundance was affected by nutrient and grazing. No obvious seasonal variation of the growth and mortality rates were found. The growth rates and mortality rates of phytoplankton and picophytoplankton were high at both stations, which was caused by the higher growth rate of the dominant phytoplankton community such as diatom and Syn, rather than nutrients or other environmental factors. "
|
|
|
|
|