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Dissolved Oxygen Characteristics of Spring Algal Bloom in Xiangxi Bay of Three Gorges Reservoir

Authors :
Daobin Ji
De-Fu Liu
Huajun Luo
Yingping Huang
Source :
2010 4th International Conference on Bioinformatics and Biomedical Engineering.
Publication Year :
2010
Publisher :
IEEE, 2010.

Abstract

Dissolved oxygen characteristics of spring algal bloom in Xiangxi Bay of Three Gorges Reservoir were studied. In surveys, 12 stations have been investigated and 132 samples were collected weekly from February 24 to May 10 in 2008. Chlorophyll a, pH and water temperature could be the significant influence factors to dissolved oxygen in spring algal bloom by using stepwise multiple binomial regression and correlation analysis method. Mean value of dissolved oxygen in Xiangxi Bay during spring algal bloom was 8.555 2.414 mg/L with a minimum and maximum concentration of 4.719 and 19.543 mg/L respectively and dissolved oxygen increased to the peak level as a result of algal bloom occurred in Xiangxi Bay and oxygen released during phytoplankton photosynthesis. Dissolved oxygen decreased from the surface to the bottom in the water column. The spatial change of dissolved oxygen in the bottom was not significant and difference of dissolved oxygen between the surface and the bottom in Xiangxi Bay was more significant than Yangtze River.

Details

ISSN :
21517614
Database :
OpenAIRE
Journal :
2010 4th International Conference on Bioinformatics and Biomedical Engineering
Accession number :
edsair.doi...........e06a5970534c714bdfb14fff924ca3aa
Full Text :
https://doi.org/10.1109/icbbe.2010.5515102