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学科主题: Ecology; Marine & Freshwater Biology; Microbiology
题名: Spatial distribution of viruses, bacteria and chlorophyll in the northern South China Sea
作者: He, L ; Yin, KD ; Yuan, XC ; Li, DM ; Zhang, DR ; Harrison, PJ
通讯作者: k.yin@griffith.edu.au
关键词: Marine viruses ; Marine bacteria ; Chlorophyll a ; South China Sea ; Pearl River estuary ; Virus-to-bacterium ratio
刊名: AQUATIC MICROBIAL ECOLOGY
发表日期: 2009
卷: 54, 期:2, 页:153-162
收录类别: sci
部门归属: [He, Lei; Yin, Kedong; Yuan, Xiangcheng; Li, Dongmei; Zhang, Derong] Chinese Acad Sci, S China Sea Inst Oceanol, Key Lab Trop Marine Environm Dynam, Guangzhou 510301, Guangdong, Peoples R China; [Yin, Kedong] Griffith Univ, Australian Rivers Inst, Brisbane, Qld 4111, Australia; [He, Lei; Yuan, Xiangcheng; Li, Dongmei; Zhang, Derong; Harrison, Paul J.] Hong Kong Univ Sci & Technol, AMCE Program, Kowloon, Hong Kong, Peoples R China; [He, Lei] Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
项目归属: LED
摘要: The South China Sea is one of the largest marginal seas in the world. A cruise was conducted during September 2005 to investigate the spatial distribution of viral and bacterial abundance as well as nutrient and chlorophyll a (chl a) concentrations in the northern South China Sea (SCS). The northern SCS was divided into 3 regions: the estuarine coastal plume, continental shelf, and open ocean. Except for the estuarine coastal waters, the northern SCS is oligotrophic. The distribution of chl a and viral and bacterial abundances were closely related to the water mass since higher chl a and viral and bacterial abundances occurred in the upwelling region and the cold eddy. Viral and bacterial abundances decreased from the estuarine waters to offshore waters. On average, viral abundance was significantly higher (p < 0.05) in the estuarine coastal plume (25.2 +/- 3.1 x 10(6) ml(-1)), than on the continental shelf (14.1 +/- 6.5 x 10(6) ml(-1)) or the open ocean (11.7 +/- 5.3 x 10(6) ml(-1)). Bacterial abundance followed a similar spatial distribution, ranging from 4.6 +/- 1.1 x 10(6) ml(-1) in the estuary to 1.6 +/- 0.8 x 10(6) ml(-1) in the open ocean. Ratios of viral to bacterial abundance (VBR) increased from near-shore to the coast and open ocean (5.6 +/- 0.7, 6.1 +/- 2.2 and 8.4 +/- 4.7, respectively). This is due to the fact that viral abundance decreased slower than bacterial abundance from the estuarine plume to the open ocean. Viral abundance was more significantly correlated with bacterial abundance (p < 0.0001) than with chl a concentration (p = 0.001), suggesting that bacteria were the major host members for marine viruses in the oligotrophic northern SCS. The highest abundance of viruses highlighted the significant influence of the relatively nutrient- and organic-rich Pearl River outflow on the northern SCS and indicated that viruses also responded to anthropogenic inputs in marine ecosystems.
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WOS记录号: WOS:000265158200004
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内容类型: 期刊论文
URI标识: http://ir.scsio.ac.cn/handle/344004/6127
Appears in Collections:热带海洋环境动力实验室(LTO)_期刊论文

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Recommended Citation:
He, L; Yin, KD; Yuan, XC; Li, DM; Zhang, DR; Harrison, PJ.Spatial distribution of viruses, bacteria and chlorophyll in the northern South China Sea,AQUATIC MICROBIAL ECOLOGY,2009,54(2):153-162
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