BEHAVIOR OF THE BENTHIC FAUNA IN THE RIVER RECEIVING AN EFFLUENT FROM A SEWAGE TREATMENT PLANT = 下水處理場의 放流水가 放出되는 江에서 底棲生物의 變化

다국어 초록 (Multilingual Abstract)

ABSTRACT
The investigation of benthic fauna in the river receiving the effluent of sewage
treatment plant was conducted in order to evaluate the impact of the effluent against
the river ecosystem. The benthic fauna was significantly influenced by the effluent of
sewage treatment plant. The effluent of sewage treatment plant brought the decrease in
species of benthic animals so that the diversity of benthic fauna in the natural river. On
the other hand, the biomass of benthic animals increased near the outfall of sewage
effluent, and chironomidae (R-type) was predominant.
The result obtained from investigation showed that the benthic fauna could be used as
an effective index in evaluating the impact of sewage effluent from the ecological
viewpoint.

다국어 초록 (Multilingual Abstract)

The investigation of benthic fauna in the river receiving the effluent of sewage treatment plant was conducted in order to evaluate the impact of the effluent against the river ecosystem. The benthic fauna was significantly influenced by the effluent of sewage treatment plant. The effluent of sewage treatment plant brought the decrease in species of benthic animals so that the diversity of benthic fauna in the receiving river would remarkably drop in comparison with that of the natural river. On the other hand, the biomass of benthic animals increased near the outfall of sewage effluent, and chironomidae (R-type) was predominant.
The result obtained from investigation showed that the benthic fauna could be used as an effective index in evaluating the impact of sewage effluent from the ecological viewpoint.

목차 (Table of Contents)

• INTRODUCTION
• MATERIALS AND METHODS
• Benthic fauna observation
• Attached organisms sampling
• Analytical procedures
• RESULTS AND DISCUSSION
• Environmental parameters of river water
• Benthic fauna
• Attached organisms
• Indicator organisms
• CONCLUSIONS