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KMID : 0893320080230020093
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Journal of Environmental Toxicology
2008 Volume.23 No. 2 p.93 ~ p.100
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Developmental Delay Effect of Harpacticoid Copepod, Tigriopus japonicus s.l. Exposure to 4-tert-octylphenol
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Bang Hyun-Woo
Lee Won-Choel
Kwak Inn-Sil
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Abstract
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The ecotoxicological effects of 4-tert-octylphenol were observed on Harpacticoid copepoda Tigriopus japonicus s.l. gathered and cultured from tidal pool of Korean coast. There were no significant differences in survival rate (except 10 g/L; 70.00%) and sex ratio (except 30 g/L) on T. japonicus s.l. exposed to 4-tert-octylphenol. However, 4-tert-octylphenol induced developmental delay (copepodite emergence day and adult male mergence day) and retardation of first brooding day of adult female. Moreover the body size and biomass decreased at 4-tert-octylphenol exposure. As a result, detailed life-cycle research of T. japonicus s.l. may yield potential bioindicators for environmental monitoring and assessment.
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KEYWORD
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4-tert-octylphenol, endocrine disrupter, copepod, Tigriopus japonicus s.l., developmental delay
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