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Journal of Environmental Toxicology 2010;25(1):19-26.
북쪽말똥성게 (Strongylocentrotus intermedius) 배아(embryo)를 이용한 중금속에 대한 민감도 비교
류태권, 황인영, 이택견, 윤준헌, 이창훈
1국립환경과학원 위해성평가과
2인제대학교 자연과학대학 환경공학부
3한국해양연구원 남해연구소
4국립환경과학원 위해성평가과
5네오엔비즈 부설 환경안전연구소
Effects of Cadmium, Copper, Chromium, Nickel, Silver, and Zinc on the Embryonic Development of the Sea Urchin, Strongylocentrotus intermedius
Tae-Kwon Ryu , In-Young Hwang , Taek-Kyun Lee , Junheon Yoon , Chang-Hoon Lee
  Discharged materials from the point or non-point source are released into the sea, and as the results, marine environment is directly affected. We must estimate the impacts of contaminants to marine pollution rapidly and accurately. Therefore, it is needed on early warning system for appreciating marine environmental impacts, and required a bioassay to evaluate abnormal changes. A bioassay test was developed to examine the effects of heavy metal contaminants on the early life stages of the marine annimals. We have studied the effects of metals on early development of a sea urchin species, Strongylocentrotus intermedius. S. intermedius embryos were tested with six metals (Cu, Ag, Zn, Cd, Cr, Ni) and showed the highest sensitivity to Cu as well as the lowest sensitivity to Cd. The order of biological impact for metals was Cu > Ag > Ni > Zn > Cr > Cd. In accordance with the results, sea urchins embryos can provide biological criteria for seawater quality assessment. The sensitivity of developmental bioassay whith S. intermedius is at intermediate level among marine organisms commonly used in aquatic bioassays. And this sea urchin can be routinely employed as a test organism for ecotoxicity assays.
Keywords: heavy metals; Strongylocentrotus intermedius; embryonic development; bioassay; ecotoxicity
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