Phytoplankton abundance varied between 0.6×104 and 213.30 ×104 cells m-3 with the average of 42.68
×104 cells m-3 (Fig. 1b.). It is generally higher inside than outside. Inside of the estuary, diatom dominated
phytoplankton community averaging 88.2% of the total abundance (range: 51.2~100%). However, diatom
was no longer dominant outside with the quit abundance proportion of diatom, chlorella, and
zooxanthellae.