Spring phytoplankton bloom in the fronts of the East China Sea |
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| Authors: | SeungHyun Son Sinjae Yoo Jae-Hoon Noh |
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| Institution: | (1) School of Marine Sciences, University of Maine, 04469 Orono, ME, USA;(2) Marine Environment Research Department, KORDI, P.O. Box 29, 425-600 Ansan, Seoul, Korea |
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| Abstract: | Frontal areas between warm and saline waters of the Kuroshio currents and colder and diluted waters of the East China Sea
(ECS) influenced by the Changjiang River were identified from the satellite thermal imagery and hydrological data obtained
from the Coastal Ocean Process Experiment (COPEX) cruise during the period between March 1st and 10th, 1997. High chlorophyll concentrations appeared in the fronts of the East China Seas with the highest chlorophyll-a concentration
in the southwestern area of Jeju Island (~2.9 mg/m3) and the eastern area of the Changjiang River Mouth (~2.8 mg/m3). Vertical structures of temperature, salinity and density were similar, showing the fronts between ECS and Kuroshio waters.
The water column was well mixed in the shelf waters and was stratified around the fronts. It is inferred that the optimal
condition for light utilization and nutrients induced both from the coastal and deep waters enhances the high phytoplankton
productivity in the fronts of the ECS. In addition, the high chlorophyll-a in the fronts seems to have been associated with
the water column stability as well. |
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| Keywords: | Spring phytoplankton bloom fronts East China Sea Stratification |
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