Impact of Intensive Land-Based Fish Culture in Qingdao, China, on the Bacterial Communities in Surrounding Marine Waters and Sediments

文献类型： 外文期刊

第一作者： Li, Qiufen

作者： Li, Qiufen;Zhang, Yan;Juck, David;Fortin, Nathalie;Greer, Charles W.

作者机构：

期刊名称：EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE （ 影响因子：2.629； 五年影响因子：2.845 ）

ISSN： 1741-427X

年卷期： 2011 年

页码：

收录情况： SCI

摘要： The impact of intensive land-based fish culture in Qingdao, China, on the bacterial communities in surrounding marine environment was analyzed. Culture-based studies showed that the highest counts of heterotrophic, ammonium-oxidizing, nitrifying, and nitrate-reducing bacteria were found in fish ponds and the effluent channel, with lower counts in the adjacent marine area and the lowest counts in the samples taken from 500 m off the effluent channel. Denaturing gradient gel electrophoresis (DGGE) analysis was used to assess total bacterial diversity. Fewer bands were observed from the samples taken from near the effluent channel compared with more distant sediment samples, suggesting that excess nutrients from the aquaculture facility may be reducing the diversity of bacterial communities in nearby sediments. Phylogenetic analysis of the sequenced DGGE bands indicated that the bacteria community of fish-culture-associated environments was mainly composed of Flavobacteriaceae, gamma-and deltaproteobacteria, including genera Gelidibacter, Psychroserpen, Lacinutrix, and Croceimarina.

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