Annual variation of Alexandrium population.in Daya Bay, the South China Sea, were investigated.The influences of environmental factors on the population dynamics were analyzed at six stations in Daya Bay from July 1997 to June 1998. The abundance of Alexandrium sp. was found higer in spring from April to May than those in other seasons in the area. The highest cell density was 20400 cells·L-1. The temperature and salinity range were 22.8～30.0℃ and 25～30‰ respectively with the high cell density occurring. During the high density cell seasons of the Alexandrium population, the N/P ration was above 16. The concentration of DIN remained the high level. So the Alexandrium sp had more competitive advantages than other alga populations when the concentration of DIP was low. Fe may be the limiting factor of the population growth.
赵水东, 徐宁, 吕颂辉*, 王朝晖. 大亚湾亚历山大藻种群周年变动与环境因子的关系[J]. , 2006, 25(2): 109-112.
ZHAO Shui-dong, XU Ning, Lü Song-hui, WANG Zhao-hui. Dynamics of Alexandrium population and environmental factors in Daya Bay, the South China Sea. , 2006, 25(2): 109-112.
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