Characteristics of eukaryotic microalgal community and its abiotic influencing factors during brown tide blooms near Qinhuangdao, China
文献类型： 外文期刊
作者： Zhen, Yu 1 ; Qiao, Ling 1 ; Gu, Bin 4 ; Mi, Tiezhu 1 ;
作者机构： 1.Minist Educ, Key Lab Marine Environm & Ecol, Qingdao 266100, Peoples R China
2.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Ecol & Environm Sci, Qingdao 266071, Peoples R China
3.Ocean Univ China, Coll Environm Sci & Engn, 238 Songling Rd, Qingdao 266100, Peoples R China
4.Chinese Acad Fishery Sci, Yellow Sea Fisheries Res Inst, Qingdao 266071, Peoples R China
关键词： Aureococcus anophagefferens; Brown tide; Community; 18S rDNA
期刊名称：HARMFUL ALGAE （ 影响因子：4.273； 五年影响因子：5.824 ）
ISSN： 1568-9883
年卷期： 2016 年 57 卷
页码：
收录情况： SCI
摘要： The brown tides caused by the picoplanktonic pelagophyte Aureococcus anophagefferens in the coastal waters of Qinhuangdao, China have occurred periodically since 2009 and exerted deleterious effects on scallop cultivation in the area. In this study, clone libraries were constructed to determine the characteristics of the local eukaryotic microalgae community, and a real-time fluorescent quantitative PCR assay was performed to analyze the temporal and spatial variations in the 18S rDNA copies of A. anophagefferens samples collected in 2012. The results showed that A. anophagefferens was the dominant species in the local eukaryotic microalgae community during the brown tide in June 2012 and accounted for a large fraction of the community. A redundancy analysis (RDA) showed that the decreasing concentration of dissolved inorganic nitrogen (DIN), increasing amount of human aquaculture activities and suitability of spring/summer temperatures for the growth of A. anophagefferens may be the primary causes of the brown tide outbreaks in the Qinghuangdao scallop culture area. (C) 2016 Elsevier B.V. All rights reserved.
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