전자저널 > 전자저널 > Prediction of Water Quality and Water Treatment in Saemankeum Lake 1. Effects of Environmental Pollutants on Filtration and Oxygen Consumption of the Marsh clam, Corbicula leana

Prediction of Water Quality and Water Treatment in Saemankeum Lake 1. Effects of Environmental Pollutants on Filtration and Oxygen Consumption of the Marsh clam, Corbicula leana

Ee-Yung Chung, Yun-Kyong Shin and Moon Sul Choi

Department of Marine Living Resoruces, Kunsan National University, Kunsan 573-701, Korea

As a preliminary study on usage of metabolic characteristics of the indicator species for indirect estimation of environmental water quality, effects of environmental pollutants on survival, filtration and oxygen consumption rates in Corbicula leana were investigated at 17℃ and 25℃ in 10 days after treatment of pollutants. In case of glucose and complex fertilizer, the survival rates of the clams were 100% without any relation to individual sizes and water temperatures. In small sizes at 25℃, the survival rates of the clams by NH4Cl concentration were shown 95% at 10 mg/l and 15 mg/l, and 90% at 20 mg/l, respectively. But the survival rate was 95% at 20 mg/l of NH4Cl concentration in small size at 17℃. The higher filtration and oxygen consumption rates were shown in small size at higher water temperatures (over 25℃), and generally filtration and oxygen consumption rates decreased with increase of glucose, complex fertilizer and NH4Cl concentrations, respectively. In general, effects of filtration and oxygen consumption rates at NH4Cl concentrations were shown slightly larger than those of glucose and complex fertilizer.

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