Abstract

As a prioiminary study on usage of metabolic charateristics of the indicator species for indirect estimation of environmental water quality, effects of environmental pollutants on survival, filtration and oxygen consumption rates in Corbicula aeana were investigated at 17<TEX>$^{\circ}C$</TEX> and <TEX>$25^{\circ}C$</TEX> in 10 day afrer treatmint 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 <TEX>$25^{\circ}C$</TEX>, the survival rates of the clams by NH<TEX>$_{4}$</TEX>CI concentration were shown 95% at 10 mg/1 and 15mg/1, and 90% at 20mg/1, respectively. But the survival rate was 95%at 20 mg/1 of NH<TEX>$_{4}$</TEX>CI concentration in small size at 17<TEX>$^{\circ}C$</TEX>. The higher filtration and oxygin consumption rates were shown in small size at higher water timperatures(over <TEX>$25^{\circ}C$</TEX>), and generally filtration and oxygen consumption rates decreased with increase of glucose, complex fertilizer and NH<TEX>$_{4}$</TEX>CI concentrations, respectively. In general, effects of filtration and oxygen consumption rates at NH<TEX>$_{4}$</TEX>CI concentrations were shown slightly larger than those of glucose and complex fertilizer.