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*, ** Marine Environment Research Division, National Fisheries Research & Development Institute, Busan, 619-705, Korea  :      · 22 , · 15 ,  18   (2, 5, 8, 11)  (, , , )   (  , , , )  .      0.61    (P H' 2.1 Moderate, 2.1>H' 1.2 Poor, H'<1.2 Bad .             . : ,   , , , Abstract : In this study, the seasonal field survey was conducted in Goseong·Jaran Bay(22 stations), Geoje·Hansan Bay(15 stations) and Jinhae Bay(18 stations). We analyzed the sediment environmental parameters(Chemical Oxygen Demand, Ignition Loss, Acid Volatile Sulfides, Total Organic Carbon) and biotic parameters of macrobenthic polychaetes(number of species, density, diversity, evenness). It had a good correlation between total organic carbon and polychaete diversity(R=0.61, P<0.01), and we made a decision them as representative environmental indices. As a result of that, regarding the criteria in the assessment of farm environment, we suggest concentrations of total organic carbon : Peak Point=15mg/gdry, Warning Point=26mg/gdry, Contaminated Point=31mg/gdry and polychaete diversity : ~2.6(Good), 2.6~2.1(Moderate), 2.1~1.2(Poor) and 1.2~(Bad). This could be a scientific basis to establish the environmental standards for fishery management. Key Words : Total organic carbon, Polychaete diversity, Shellfish farms, Environmental assessment, Fishery management

Establishment of Environmental Assessment using Sediment Total Organic Carbon and Macrobenthic Polychaete Community in Shellfish Farms