Phytoplankton population dynamics related coastal environments in Tongyeong-Geoje area

Abstract

Various environmental factors of coastal areas must affect the phytoplankton community in complex manners. To better understand the ecological dynamics of phytoplankton, physical, chemical, and biological complex surveys should be performed and analyzed together. Based on our field data, structuring in phytoplankton communities and appearances of HABs(Harmful Algal Blooms) species showed a clear correlation with environmental factors associated with the characteristics of coastal regions, according to different water masses. Nutrient dynamics fluctuated due to upwelling events that occurred in the continental shelf and inflows of fresh water from the estuary area, and large amounts of the Changjiang-diluted water brought by the ocean current had strong environmental and biological effects on the southern sea of Korea in the late spring and summer of 2016. These internal and external environmental changes are essential and important parameters indetermining the biota of coastal environments. Our results indicate that hydro-oceanographic events such as river discharge, current and upwelling play important roles in determining the phytoplankton community and potential appearance characteristics of HABs in coastal environment of Korea. and analyzed together. Based on our field data, structuring in phytoplankton communities and appearances of HABs(Harmful Algal Blooms) species showed a clear correlation with environmental factors associated with the characteristics of coastal regions, according to different water masses. Nutrient dynamics fluctuated due to upwelling events that occurred in the continental shelf and inflows of fresh water from the estuary area, and large amounts of the Changjiang-diluted water brought by the ocean current had strong environmental and biological effects on the southern sea of Korea in the late spring and summer of 2016. These internal and external environmental changes are essential and important parameters indetermining the biota of coastal environments. Our results indicate that hydro-oceanographic events such as river discharge, current and upwelling play important roles in determining the phytoplankton community and potential appearance characteristics of HABs in coastal environment of Korea.