Impact of dispersant used to treat oil spills on natural plankton assemblages in short-term marine mesocosms
-
Title
- Impact of dispersant used to treat oil spills on natural plankton assemblages in short-term marine mesocosms
-
Author(s)
- 정승원; 권오윤; 강정훈; 심원준; 김영옥
- KIOST Author(s)
- Jung, Seung Won(정승원); Kang, Jung Hoon(강정훈); Shim, Won Joon(심원준); Kim, Young Ok(김영옥)
-
Alternative Author(s)
- 정승원; 권오윤; 강정훈; 심원준; 김영옥
-
Publication Year
- 2011-12-27
-
Abstract
- To assess the effects of crude oil and dispersant on marine planktonic ecosystems, analyses were performed in 1,000-L mesocosm over a period of nine days. Triplicate experiments were conducted for two different treatments, namely, addition of crude oil alone and oil plus dispersant. In the mesocosm with oil plus dispersant, high concentrations of total petroleum hydrocarbon (TPH) were soon found in the bottom layer. In addition, most planktonic communities responded drastically to the presence of dispersant acting to disperse TPH: total bacterial abundances increased for the first two days and then decreased rapidly for the remainder of the experiment. The abundance of heterotrophic flagellates increased rapidly in association with the increase in bacterial cells. The abundance of phytoplankton and zooplankton communities decreased clearly within two days. Time-delayed relationship also revealed that the TPH concentration had a significant negative relationship with phyto- and zooplankton communities within two days. However, most planktonic communities were affected less adversely in the mesocosms treated with crude oil alone than in those treated with both crude oil and dispersant. The present results demonstrate that the planktonic ecosystem was damaged more severely by the introduction of dispersant than by the harmful effects of crude oil itself. Therefore, caution should be taken
-
URI
- https://sciwatch.kiost.ac.kr/handle/2020.kiost/27944
-
Bibliographic Citation
- 한국환경생물학회, pp.28, 2011
-
Publisher
- 한국환경생물학회
-
Type
- Conference
-
Language
- English
- Files in This Item:
-
There are no files associated with this item.
Items in ScienceWatch@KIOST are protected by copyright, with all rights reserved, unless otherwise indicated.