The antagonism of phytoplankton vs. heterotrophic bacterioplankton in the Fei-Tsui Reservoir
Date Issued
2005
Date
2005
Author(s)
Hsu, Ting-Chang
DOI
zh-TW
Abstract
Temperature, nutrients, primary production and bacteria production were sampling bi-weekly from May 2004 to April 2005 in dam station of Fei-Tsui Reservoir. Three main phenomena were observed in this study. First, primary production increased while sufficient light intensity and phosphorus concentration of surface water in spring. The uptake ability of phosphorus by bacteria was inhibited due to low water temperature, and caused bacterial production low in spring. Second, bacteria production was stimulated with higher temperature and extra phosphorus but primary production was not in typhoon season, caused the decrease of DOC concentration in surface water. Finally, cynobacteria, which dominated in dam, became a superior phosphorus competitor because of size closes to bacteria and its lower phosphorus demand, DOC is accumulated by primary production increased and bacteria production decreased in non-typhoon season. The antagonism of phytoplankton vs. heterotrophic bacteria in other studies may be the first observation in field study. Results suggest the seasonal succession of phytoplankton, which might play a key role in explain the antagonism phenomena and the phytoplankton-bacteria paradox should be study in future.
Subjects
初級生產力
細菌生產力
水庫
磷限制
磷酸鹽
primary production
bacteria production
reservoir
phosphorus limitation
Type
thesis
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