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http://dx.doi.org/10.11626/KJEB.2012.30.4.328

Seasonal Changes in Water Masses and Phytoplankton Communities in the Western Part of South Coastal Waters, Korea  

Jung, Seung Won (Library of Marine Samples, Korea Institute of Ocean Science & Technology)
Park, Jong Gyu (Department of Oceanography, Kunsan National University)
Jeong, Do Hyun (Library of Marine Samples, Korea Institute of Ocean Science & Technology)
Lim, Dhongil (Library of Marine Samples, Korea Institute of Ocean Science & Technology)
Publication Information
Korean Journal of Environmental Biology / v.30, no.4, 2012 , pp. 328-338 More about this Journal
Abstract
We investigated seasonal changes in the marine environments and phytoplankton communities in the western part of south coastal waters of Korea during May 2009 and February 2010. In multidimensional scaling analysis of in situ data obtained by shipboard observations, the coastal waters comprised four different water masses: Yellow Sea water mass (YW) of low temperature and salinity, and high suspended solids and nutrient concentrations; south-western coastal water mass (SW) of high salinity and nutrient concentrations; Tsushima Current water mass (TW) of low nutrient concentrations, and high temperature and salinity; and closed bay water mass (CW). The spatial extent of these water masses varied according to seasonal environmental characteristics. In particular, at most study sites, TW expanded during autumn toward coastal waters. Phytoplankton abundances peaked during autumn in CW and spring in YW, which coincided with periods of high nutrient concentrations. In particular, diatoms predominated, and attained an abundance of more than 90% in most water masses. However, dinoflagellates in TW comprised a proportion of approximately 20% abundance.
Keywords
phytoplankton; environmental factors; seasonal changes; south-west coastal waters; change in water mass;
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Times Cited By KSCI : 4  (Citation Analysis)
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