초록

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Abstract ▼ AI-Helper

The polychaetes are the dominant species in the benthic communities, and play an important role in improving the sediment quality through the action of ingesting organic materials. We evaluated the improvement ability of rockworm Marphysa sanguinea for the removal of organic matter. We used the thre...

The polychaetes are the dominant species in the benthic communities, and play an important role in improving the sediment quality through the action of ingesting organic materials. We evaluated the improvement ability of rockworm Marphysa sanguinea for the removal of organic matter. We used the three types of sediment (S1: coarse sand, S2: fine sand, S3: muddy sand), and analyzed TOC of seawater and sediment. Rockworm was effective in eliminating organic matter in the three types of sediment and the larger the particle, the higher the removal rate. Removal ability of rockworm for organic matter in sediment were calculated with 3.9856 ppm g-1d-1 in coarse sand, 2.8021 ppm g-1d-1 in fine sand, and 28.1142 ppm g-1d-1 in muddy sand. The results show that rockworm contributes to the removal of organic matter in the various sediment types.

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