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커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 1999.12
- 수록면
- 323 - 331 (9page)
이용수
초록· 키워드
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Most of channel fish farming in Alabama are still earthen pond style, and filld by rainfall and runoff. The water levels of ponds are maintained with stand-pipe, and the effluent from ponds very little discharged at usual time except at heavy rains and crop season. Overflow from ponds following rains occurs mostly in winter and early spring when stream flows high.
In this study to know how much effluents from fish ponds affected to streams which are nearby ponds, a survey carried out on the variation of water quality of seven streams and effluents at heavy rains. Water samples were collected at 14 sites on upstream (did not affected by effluents) and downstream(being affect by effluents), and sampled monthly from August 1997 to August 1998.
There were no clear trends of difference in most water quality variables between upstream and downstream of catfish farms during a year. The effluents from ponds after heavy rains were not highly polluted, but somtimes have elevated concentrations of TSS. Nitrogen content of effluents was higher than that of routine streams, but phosphorus was not clear. From this results suggest that the effluents from catfish farm are not having adverse impacts on stream water quality still yet.
In this study to know how much effluents from fish ponds affected to streams which are nearby ponds, a survey carried out on the variation of water quality of seven streams and effluents at heavy rains. Water samples were collected at 14 sites on upstream (did not affected by effluents) and downstream(being affect by effluents), and sampled monthly from August 1997 to August 1998.
There were no clear trends of difference in most water quality variables between upstream and downstream of catfish farms during a year. The effluents from ponds after heavy rains were not highly polluted, but somtimes have elevated concentrations of TSS. Nitrogen content of effluents was higher than that of routine streams, but phosphorus was not clear. From this results suggest that the effluents from catfish farm are not having adverse impacts on stream water quality still yet.
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UCI(KEPA) : I410-ECN-0101-2009-529-015332815