Bacterial communities in Dalian Bay petroleum pollution sediments

Gao Xiaoyu; Ming Hongxia; Chen Jiaying; Li Jiangyu; Han Junli; Lin Feng'ao; Fan Jingfeng

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Gao Xiaoyu, Ming Hongxia, Chen Jiaying, Li Jiangyu, Han Junli, Lin Feng'ao, Fan Jingfeng. Bacterial communities in Dalian Bay petroleum pollution sediments[J]. Haiyang Xuebao, 2014, 36(6): 58-66.

Citation:

Gao Xiaoyu, Ming Hongxia, Chen Jiaying, Li Jiangyu, Han Junli, Lin Feng'ao, Fan Jingfeng. Bacterial communities in Dalian Bay petroleum pollution sediments[J]. Haiyang Xuebao, 2014, 36(6): 58-66.

Gao Xiaoyu, Ming Hongxia, Chen Jiaying, Li Jiangyu, Han Junli, Lin Feng'ao, Fan Jingfeng. Bacterial communities in Dalian Bay petroleum pollution sediments[J]. Haiyang Xuebao, 2014, 36(6): 58-66.

Citation:

Gao Xiaoyu, Ming Hongxia, Chen Jiaying, Li Jiangyu, Han Junli, Lin Feng'ao, Fan Jingfeng. Bacterial communities in Dalian Bay petroleum pollution sediments[J]. Haiyang Xuebao, 2014, 36(6): 58-66.

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Bacterial communities in Dalian Bay petroleum pollution sediments

1.
National Marine Environmental Monitoring Center, State Oceanic Administration, Dalian 116023, China;Key Laboratory for Ecological Environment in Coastal Areas, State Oceanic Administration, Dalian 116023, China;College of Aquiculture and Life Science, Dalian Ocean University, Dalian 116023, China
2.
National Marine Environmental Monitoring Center, State Oceanic Administration, Dalian 116023, China;Key Laboratory for Ecological Environment in Coastal Areas, State Oceanic Administration, Dalian 116023, China

Received Date: 2013-06-27

Abstract

Abstract

In order to explore the connection between petroleum pollution and bacterial community structure change, the important dominant bacteria communities in the process of oil biodegradation, after the "7.16" pipeline explosion and oil spill accident happened in Dalian Xingang, the content of petroleum hydrocarbon and bacterial metagenome were studied in Dalian Bay. Results showed that the petroleum hydrocarbon content in the surface sediment of DLW01 in August 2010 was 1 492 mg/kg, according with the third standard of marine sediment quality. As time went on, the content of petroleum the presented basic downward thrend, and all conformed to the first standard of marine sediment quality in April 2011, July 2011, December 2011. 16S rDNA targeted PCR-DGGE results suggested that the dominant bacteria communities were monotonous in high petroleum hydrocarbons areas, while conversely rich in low oil pollution. Bacterial community in the same place could maintain stability. Phylum Gammaproteobacteria and Bacteroidetes were higher in the oil polluted sediment of Dalian Bay, which played an important role in the process of oil biodegradation. Phylum Firmicutes only detected in the area of low oil pollution. The sensitive pollution indicator Psychrobacter sp. could be used as biological indicator for further research.
- dominant bacterial communities,
- oil pollution,
- Dalian Bay,
- sediment

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References(28)

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