Influence of suspended mariculture on vertical distribution profiles of bacteria in sediment from Daya Bay, Southern China
文献类型： 外文期刊
作者： Shi, Rongjun 1 ; Xu, Shumin 1 ; Qi, Zhanhui 1 ; Zhu, Qingzhi 3 ; Huang, Honghui 1 ; Weber, Felix 3 ;
作者机构： 1.Chinese Acad Fishery Sci, South China Sea Fisheries Res Inst, Minist Agr, Guangdong Prov Key Lab Fishery Ecol & Environm, Guangzhou 510300, Guangdong, Peoples R China
2.Chinese Acad Fishery Sci, South China Sea Fisheries Res Inst, Minist Agr, Key Lab Open Sea Fishery Dev, Guangzhou 510300, Guangdong, Peoples R China
3.SUNY Stony Brook, Sch Marine & Atmospher Sci, Stony Brook, NY 11794 USA
关键词： Mariculture; Sediment; Bacteria community; Vertical distribution
期刊名称：MARINE POLLUTION BULLETIN （ 影响因子：5.553； 五年影响因子：5.907 ）
ISSN： 0025-326X
年卷期： 2019 年 146 卷
页码：
收录情况： SCI
摘要： Mariculture is known to contribute to oxygen depletion, pH decline and accumulation of nutrients and organic matter in sediments. However, studies on the bacterial vertical distribution of mariculture area are very limited. The bacterial abundance in the non-culture site (3.8 +/- 0.8 x 10(9) copies g(-1)) was significantly higher than that in the three mariculture sites (1.2 +/- 0.2 x 10(9) copies g(-1)), and bacterial diversity in the non-culture site was significantly higher than that in fish cage-TF (p < 0.05). The vertical distribution profiles of bacteria in non-culture and oyster culture sites were similar but very different from that of fish cage-TF. In addition, significant downward trends in bacterial abundance and diversity were observed as sediment depth increased (p < 0.05), and the most relevant environmental factors were moisture content, total nitrogen, total organic carbon and carbon/nitrogen. The dominant bacterial phyla in sediment were Proteobacteria, Chloroflexi and Bacteroidetes.
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