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Daphnia magna와 Moina macrocopa를 이용한 금강수계 하천퇴적물 생태독성 모니터링Toxicity Monitoring of River Sediments in the Geum River Basin using Daphnia magna and Moina macrocopa

Other Titles
Toxicity Monitoring of River Sediments in the Geum River Basin using Daphnia magna and Moina macrocopa
Authors
조혜윤유지수한영석한태준김상훈정진호
Issue Date
2010
Publisher
한국물환경학회
Keywords
Aqueous extracts; Organic extracts; Pore water; River sediment; Toxicity monitoring
Citation
한국물환경학회지, v.26, no.6, pp.1000 - 1007
Indexed
KCI
Journal Title
한국물환경학회지
Volume
26
Number
6
Start Page
1000
End Page
1007
URI
https://scholar.korea.ac.kr/handle/2021.sw.korea/118228
ISSN
2289-0971
Abstract
In this study, toxicity monitoring of sediments collected from 25 stations in the Geum river basin was conducted using Daphnia magna and Moina macrocopa. According to the results of acute toxicity tests (immobilization and mortality) of organic extracts of semdiments, Miho stream showed much less toxicity than Gap and Nonsan streams. In particular, significant toxicity was observed in both species for St.15 and St.16 sediment samples that passed through Deajeon city as a branch of Gap stream. For Nonsan stream, St.23 sediment showed high toxicity toward M. macrocopa. This site seemed to be affected by upper agricultural industrial complex. Additionally, M. macrocopa showed a higher sensitivity than D. magna for organic extracts of sediments. In the case of toxicity tests using sediment pore water and aqueous extracts, only pore water of St.27 sediment was toxic against D. magna. Toxicity identification evaluation showed that hydrogen sulfide was likely a major toxicant in the pore water.
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JUNG, Jin ho
생명과학대학 (환경생태공학부)
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