A Study on the Distribution and Correlation of Small Phytoplankton and Nutrients (N, P) in Spring in the Xiangshan Harbor

The distribution and correlation of small phytoplankton and nutrients in spring of 2012 in Xiangshan Harbor were studied. The results showed that in spring, the higher values of small phytoplankton cell abundance and nutrient content were distributed in the station from S01 to S06 which were located in the sea area of Tie port and Huangdun port. Meanwhile, the lower values were mainly distributed in the station from S17 to S31 which were located in the sea area of the outer Xiangshan Bay and the sea area around Liuheng Island. From the bottom to the middle to the entrance, the values reduced in turn. The content of N, P in the surface water was higher than that in the bottom water, but the distribution trends were the same no matter in the surface water or in the bottom water. There was significant positive correlation between small phytoplankton cell abundance and nutrient content in the water of Xiangshan Harbor.