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http://dx.doi.org/10.5657/kfas.2002.35.4.431

Spatiotemporal Variations of Water Quality in Yongil Bay  

Kang Yang Soon (Aquaculture and Environment Institute, NFRDI)
Kim Kui Young (South Sea Regional Fisheries Research Institute, NFRDI)
Shim Jeong Min (East Sea Regional Fisheries Research Institute, NFRDI)
Sung Ki Tack (East Sea Regional Fisheries Research Institute, NFRDI)
Park Jin Il (East Sea Regional Fisheries Research Institute, NFRDI)
Kong Jai Yul (Faculty of Food science and Biotechnology, Pukyong National Univ)
Publication Information
Korean Journal of Fisheries and Aquatic Sciences / v.35, no.4, 2002 , pp. 431-437 More about this Journal
Abstract
In order to understand the spatiotemporal variation of water quality, an investigation on variation characteristics of water quality was conducted at 13 stations in Yongil bay from 1990 to 1998. The salinity in summer was relatively lower than that in other seasons and it have increased from inner bay to outside of the bay gradually. However, nitrate concentration in summer was relatively higher than that in other seasons, and it was the highest, up to $65.40\%$, among dissolved inorganic nitrogens, Nitrate concentration indicates the possibility of affecting by freshwater discharges to Yongil bay. Correlation analysis showed that salinity had a significantly good correlation with nitrate. This result suggested that inflow of river had an influence on increase of nitrate. The result of Principal Component Analysis (PCA) indicated that nitrate was major factor to influence the water quality in Yongil Bay.
Keywords
Inflow; Correlation analysis; PCA; DIN; Nitrate;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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