Effects of Chemically Enhanced Water-Accommodated Fraction of Iranian Heavy Crude Oil on Periphytic Microbial Communities in Microcosm Experiment

被引：5
作者：
Baek, Seung Ho [1 ]
Son, Moonho [1 ]
Shim, Won Joon [2 ]
机构：
[1] Korea Inst Ocean Sci & Technol, Dept South Sea Environm Res, Geoje 656834, South Korea
[2] Korea Inst Ocean Sci & Technol, Oil & POPs Res Grp, Geoje 656834, South Korea
来源：
BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY | 2013年 / 90卷 / 05期
关键词：
Periphytic micro-organism; Crude oil; Dispersed oil; Microbial community; SPILL; EXPOSURE; FISH; ASSEMBLAGES; PETROLEUM; RESPONSES; KOREA;
D O I：
10.1007/s00128-013-0963-1
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
Exposure experiments were conducted to determine the effects of an oil spill on a periphytic microbial community with the chemically enhanced water-accommodated fraction (CEWAF) of Iranian Heavy Crude oil in a microcosm containing artificial benthic substrates. Bacteria and heterotrophic nano-flagellates (HNF) grew well in all the treatments, except for the 100 % CEWAF exposure. However, periphyton did not adapt to concentrations of CEWAF a parts per thousand yen 20 %. Among the periphyton, Cylindrotheca spp. dominated under treatment conditions, and the response of Cylindrotheca spp. to CEWAF (i.e., particularly 10 %) closely followed the changes in chlorophyll a concentration. The concentrations of petroleum hydrocarbons from 10 % and 20 % CEWAF seemed to have a negative effect on periphyton and a growth-promoting effect on bacteria and HNF, respectively.
引用
收藏
页码：605 / 610
页数：6
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