Fisheries and Aquatic Sciences

The Korean Society of Fisheries and Aquatic Science (한국수산과학회)
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Seasonal variation of physicochemical factor and fecal pollution in the Hansan-Geojeman area, Korea

  • Park, Young Cheol (Southeast Sea Fisheries Research Institute, National Fisheries Research & Development Institute) ;
  • Kim, Poong Ho (Food Safety Research Division, National Fisheries Research & Development Institute) ;
  • Jung, Yeoun Joong (Southeast Sea Fisheries Research Institute, National Fisheries Research & Development Institute) ;
  • Lee, Ka Jeong (Southeast Sea Fisheries Research Institute, National Fisheries Research & Development Institute) ;
  • Kim, Min Seon (Southeast Sea Fisheries Research Institute, National Fisheries Research & Development Institute) ;
  • Go, Kyeong Ri (Southeast Sea Fisheries Research Institute, National Fisheries Research & Development Institute) ;
  • Park, Sang Gi (Southeast Sea Fisheries Research Institute, National Fisheries Research & Development Institute) ;
  • Kwon, Soon Jae (Southeast Sea Fisheries Research Institute, National Fisheries Research & Development Institute) ;
  • Yang, Ji Hye (Southeast Sea Fisheries Research Institute, National Fisheries Research & Development Institute) ;
  • Mok, Jong Soo (Southeast Sea Fisheries Research Institute, National Fisheries Research & Development Institute)
  • Received : 2016.05.12
  • Accepted : 2016.05.19
  • Published : 2016.06.30
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Abstract

The seasonal variation of fecal coliforms (FCs) and physicochemical factors was determined in seawaters of the Hansan-Geojeman area, including a designated area for oyster, and in inland pollution sources of its drainage basin. The mean daily loads of FCs in inland pollution sources ranged from $1.2{\times}10^9$ to $3.1{\times}10^{11}$ most probable number (MPN)/day; however, the pollutants could not be reached at the designated area. FC concentrations of seawaters were closely related to season, rainfall, and inland contaminants, however, within the regulation limit of various countries for shellfish. The highest concentrations for chemical oxygen demand (COD) and $chlorophyll-{\alpha}$ in seawaters were shown in the surface layer during August with high rainfall, whereas the lowest for dissolved oxygen (DO) in the bottom layer of the same month. Therefore, it indicates that the concentrations of FC, COD, DO, and $chlorophyll-{\alpha}$ of seawaters were closely related to season and rainfall.

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