Initial recolonization of benthic fauna in defaunated sediment contaminated with octylphenol: Field microcosm exposure study SCOPUS

Title
Initial recolonization of benthic fauna in defaunated sediment contaminated with octylphenol: Field microcosm exposure study
Author(s)
Ryu, J.; Kim, C.K.; Khim, J.S.; Park, K.-H.; Lee, C.-H.; Lee, J.-H.; Moon, S.-D.; Lee, J.-S.; Shim, W.J.; Lim, U.-H.; Hong, S.H.; Song, S.J.; Lee, K.-T.
KIOST Author(s)
Shim, Won Joon(심원준)Yim, Un Hyuk(임운혁)Hong, Sang Hee(홍상희)
Publication Year
2010
Abstract
Recolonization of benthic fauna in defaunated sediment contaminated with octylphenol (OP) has been investigated by the use ofin situ microcosm exposure study. Trays with defaunated sediment (control) and those treated with five OP concentrations (0. 59, 5. 4, 7. 6, 66, and 660 μg g-1, sediment dry weight (DW)) were exposed at the subtidal (ca. 10 m), in the southern coast of Korea, over two months. The initial response (after one-month exposure) of macrozoobenthos at the trays of control and three lower OP (0. 59-7. 6 μg g-1 DW) showed rapid colonization of macrozoobenthos with high diversity and abundance. However, the species number sharply decreased after two-month exposure, particularly at the tray of greatest OP (660 μg g-1 DW) treated with species number from 15 (after 30-days) to 3 (after 70-days). Other univariate indices such as abundance and biomass of benthic macrofauna also showed concentration-and time-dependent declines, indicating a potential adverse effect of OP on benthic community recolonization. Further, the multi-dimensional scaling (MDS) analysis that clearly separated two distinct faunal groups of macrobenthos during exposure supported the concentration-dependant recolonization followed by succession at the OP concentration of >7. 6 μg g-1 DW. Similar to macrofauna, the meiofaunal abundance significantly decreased at the OP concentration of >7. 6 μg g-1 DW, indicating certain threshold of OP between 7. 6-66 μg g-1 DW that caused adverse effect on benthic community recolonization. Although the critical adverse OP concentration found in community level was relatively high compared to the environmental concentrations (ppb levels) reported in coastal sediments, it should be pointed out that certain species could be influenced by the exposure of lower OP concentrations. © 2010 The Korean Society of Environmental Risk Assessment and Health Science and Springer.
ISSN
2005-9752
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/4183
DOI
10.1007/BF03216495
Bibliographic Citation
Toxicology and Environmental Health Sciences, v.2, no.2, pp.132 - 140, 2010
Keywords
Defaunated sediment; Macrozoobenthos; Microcosm; Octylphenol; Recolonization
Type
Article
Language
English
Document Type
Article
Related Researcher
Research Interests

Microplastic pollution,Persistent Organic Pollutants,Oil Pollution,미세플라스틱 오염,잔류성 유기오염물질,유류오염

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