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Changes of Emergent Period and Body Volume of Chironomus riparius Exposure to Di(2-ethyl-hexyl)-phthalate  

Kwak Inn-Sil (Bioresources Utilization Program, College of Fisheries and Ocean Sciences, Yosu National University)
Soh Ho Young (Bioresources Utilization Program, College of Fisheries and Ocean Sciences, Yosu National University)
Lee Wonchoel (Department of Life Science, College of Natural Science, Hanyang University)
Publication Information
Korean Journal of Environmental Biology / v.23, no.4, 2005 , pp. 357-361 More about this Journal
Abstract
The exposed strain of C. riparius treated with di (ethyl- hexyl)-phthalate (DEHP) did not result in a consistent relationship between mortality or sex ratio and chemical concentrations. And after treating with DEHP, the emergent female from the exposed strain appeared to be fatty with a large body volume comparing with the non - exposed strain. The emergent period (EP) was especially different between the exposed fourth strain and the non-exposed strain; generally the exposed strain was $7\~10$ days, and non - exposed strain was $17\~24$ days. Regarding sustainable exposed effects, the EP, the first emergent day (FED), and the body volume (BV) could be suggested as suitable bio - markers for detecting of exposure to various EDCs.
Keywords
emergent period; body volume; DEHP; Chironomus riparius;
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