Pigment characterization for the 2011 bloom in Qinhuangdao implicated "brown tide" events in China

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	Pigment characterization for the 2011 bloom in Qinhuangdao implicated "brown tide" events in China
	Kong FZ(孔凡洲); Yu RC(于仁成); Zhang QC(张清春); Yan T(颜天); Zhou MJ(周名江)
发表期刊	Chinese Journal of Oceanology and Limnology
ISSN	0254-4059
	2012-05-15
出版年	2012
卷号	v.30 期号:03 页码:3-12
文献类型	CNKI期刊论文
摘要	A large-scale bloom occurred from May to June in 2011 in sea area near Qinhuangdao of the Bohai Sea, leading to huge damage of the scallop culture industry. Similar blooms have been observed in this region for three years. The causative species of the bloom, which dominated the phytoplankton community with the maximum cell density around 109 cell/L, could not be identified with morphological features due to the small cell size (~2 mm). A pigment analytical method was then adopted to analyze the pigment profile of the phytoplankton samples collected from the blooming sea area. It was found that pico-sized (<2 mm), nano-sized (2-20 mm), and bulk phytoplankton samples had similar pigment profile, representing the pigment signature of the bloom-causative species. The major pigments detected included 19-butanoyloxyfucoxanthin (But-fuco), fucoxanthin (Fuco), diadinoxanthin (Diad) and chlorophyll a (Chl a), and high content of But-fuco was the most significant characteristics of the phytoplankton samples. Based on the pigment composition and content, the bloom-causative species could be tentatively identified as pelagophyte, "type 8" group of haptophyte, or silicoflagellate. Some unique features of the bloom, such as the extremely high cell density, small-sized and But-fuco containing cells, occurring in early summer, and the feeding-cessation effects on scallops, suggest it be a "brown tide" event similar to those reported in the east coast of the United States of America. The recurrent "brown tide" events and their dramatic impacts on the shellfish mariculture industry in Qinhuangdao need close attention in the coming years.
关键词	harmful algal bloom pigment HPLC 19-butanoyloxyfucoxanthin pelagophyte haptophyte
CNKI专辑号	A;B;
CNKI专辑名称	基础科学;工程科技Ⅰ辑;
CNKI专题号	A010;B027;
CNKI专题名称	海洋学;环境科学与资源利用;
分类号	X55
收录类别	中科院核心
语种	英文;
资助项目(基金）	Supported by the Knowledge Innovation Program of Chinese Academy of Sciences (No. KZCX2-YW-Q07-04) ; the National Basic Research Priority Program of the Ministry of Science and Technology of China (No.2010CB428705) ; the Innovation Research Group Program of the Natural Science Foundation of China (No. 41121064) ; the Joint China-India Collaboration Project of the Natural Science Foundation of China (No.40811140535) ; the North Sea Environmental Monitoring Center (NSEMC) of the State Ocean Administration
文献类型	CNKI期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/191251
专题	中国科学院海洋研究所
作者单位	1.KeyLaboratoryofMarineEcologyandEnvironmentalSciences,InstituteofOceanology,ChineseAcademyofSciences 2.GraduateUniversityofChineseAcademyofSciences
推荐引用方式 GB/T 7714	Kong FZ,Yu RC,Zhang QC,et al. Pigment characterization for the 2011 bloom in Qinhuangdao implicated "brown tide" events in China. 2012.