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Distribution Characteristics of Chlorophyll Concentration and the Effects of Environmental Elements of Bohai Bay in Spring
Pages: 1-7
Year: Issue:  2
Journal: Ocean Technology

Keyword:  chlorophyll concentrationnutrientsphotosynthetically active radiation(PAR)Bohai Bay;
Abstract: Based on all the stations’ survey data in the Bohai Bay in May 2011, the chlorophyll concentration is higher on the inshore surface and bottom of the area from the Haihe River estuary to Taoer River estuary, and is lower in the central region of the Bohai Bay, with the lowest chlorophyll concentration zone appearing near the section of the Bohai Bay mouth. Good correlation(R2>0.66) exists among surface chlorophyll concentration and temperature, salinity and phosphates. The correlation analysis using SPSS shows that temperature, salinity, total nitrogen, phosphates and silicates have a significant impact on phytoplankton growth. Among these factors, the most important factor is temperature which has positive correlation with chlorophyll concentration; followed by phosphates which have negative correlation with chlorophyll concentration. The analysis based on typical stations and continuous stations indicates that the vertical variations of chlorophyll concentration, temperature, salinity and density increase when the photosynthetically active radiation(PAR) increases.
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