Developmental Delay Effect of Harpacticoid Copepod, Tigriopus japonicus s.l. Exposure to 4-tert-octylphenol

, Hyun Woo Bang; , Wonchoel Lee; , Inn-Sil Kwak

Published online January 1, 1986

Journal of Environmental Toxicology 2008;23(2):93-100.

4-tert-octylphenol에 노출된 저서성 요각류 Tigriopus japonicus s.l.의 발생지연 현상

방현우, 이원철, 곽인실

Developmental Delay Effect of Harpacticoid Copepod, Tigriopus japonicus s.l. Exposure to 4-tert-octylphenol

Hyun Woo Bang , Wonchoel Lee , Inn-Sil Kwak

ABSTRACT

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 ㎍/ℓ; 70.00%) and sex ratio (except 30 ㎍/ℓ) on T. japonicus s.l. exposed to 4-lert-octylphenol. However, 4-rert-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.

Keywords: 4-tert-octylphenol; endocrine disrupter; copepod; Tigriopus japonicus s.l.; developmental delay