The spatial and temporal characteristics of harmful algal blooms in the southwest Bohai sea

doi:10.1016/j.csr.2013.03.014

	The spatial and temporal characteristics of harmful algal blooms in the southwest Bohai sea
	Wu, Zaixing 1,2; Yu, Zhiming1 ; Song, Xiuxian1 ; Yuan, Yongquan1,2 ; Cao, Xihua1 ; Liang, Yubo 3; Yu, ZM
	2013-05-15
发表期刊	CONTINENTAL SHELF RESEARCH
ISSN	0278-4343
卷号	59 页码:10-17
文章类型	Article
摘要	Harmful algal blooms (HABs) are harmful to coastal ecosystems, fisheries, the aquaculture industry, and even human health, thus they have received great attention worldwide. In this study, geostatistical tools in Geographic information system (GIS) were used to analyze HAB data collected over the last 11 years in the southwest Bohai Sea with the goal of detecting spatial and temporal characteristics of HAB events in this area. The seasonality, trend of HAB occurrences and the spatial pattern of HAB events were examined by time-series analysis and nearest neighbor analysis, respectively. The frequency of HAB occurrences was mapped using kernel density estimation, and the harm caused by HAB events was assessed and then categorized using a characteristic-based empirical model. The occurrences of HABs not only exhibited significant seasonality and a "single peak" trend in time but also were clustered in space. HABs had both a high frequency of occurrence and a high harm in the north Bohai Bay and the Yellow River estuary. In addition, HABs posed a high harm in the nearshore area near the city of Huanghua in Bohai Bay and the offshore area in the middle Bohai Bay: thus, HAB monitoring and/or management should be concentrated in these locales. Compared to previous descriptions, this research utilized a visualizable approach to more fully identify the scope, distribution, and characteristics of HAB occurrences in the southwest Bohai Sea, thus providing useful information to support the implementation of a monitoring and management program for HABs. (C) 2013 Elsevier Ltd. All rights reserved.; Harmful algal blooms (HABs) are harmful to coastal ecosystems, fisheries, the aquaculture industry, and even human health, thus they have received great attention worldwide. In this study, geostatistical tools in Geographic information system (GIS) were used to analyze HAB data collected over the last 11 years in the southwest Bohai Sea with the goal of detecting spatial and temporal characteristics of HAB events in this area. The seasonality, trend of HAB occurrences and the spatial pattern of HAB events were examined by time-series analysis and nearest neighbor analysis, respectively. The frequency of HAB occurrences was mapped using kernel density estimation, and the harm caused by HAB events was assessed and then categorized using a characteristic-based empirical model. The occurrences of HABs not only exhibited significant seasonality and a "single peak" trend in time but also were clustered in space. HABs had both a high frequency of occurrence and a high harm in the north Bohai Bay and the Yellow River estuary. In addition, HABs posed a high harm in the nearshore area near the city of Huanghua in Bohai Bay and the offshore area in the middle Bohai Bay: thus, HAB monitoring and/or management should be concentrated in these locales. Compared to previous descriptions, this research utilized a visualizable approach to more fully identify the scope, distribution, and characteristics of HAB occurrences in the southwest Bohai Sea, thus providing useful information to support the implementation of a monitoring and management program for HABs. (C) 2013 Elsevier Ltd. All rights reserved.
关键词	Harmful Algal Blooms (Habs) Geographic Information System Time-series Analysis Kernel Density Estimation Nearest Neighbor Analysis Bohai Sea
学科领域	Oceanography
DOI	10.1016/j.csr.2013.03.014
URL	查看原文
收录类别	SCI
语种	英语
WOS研究方向	Oceanography
WOS类目	Oceanography
WOS记录号	WOS:000320824900002
WOS关键词	KERNEL DENSITY-ESTIMATION ; BANDWIDTH SELECTION ; EUTROPHICATION ; PHYTOPLANKTON ; NUTRIENTS
WOS标题词	Science & Technology ; Physical Sciences
引用统计	被引频次：27[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/16499
专题	海洋生态与环境科学重点实验室
通讯作者	Yu, ZM
作者单位	1.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Ecol & Environm Sci, Qingdao 266071, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Natl Marine Environm Monitoring Ctr, Dalian 116023, Peoples R China
第一作者单位	中国科学院海洋研究所
推荐引用方式 GB/T 7714	Wu, Zaixing,Yu, Zhiming,Song, Xiuxian,et al. The spatial and temporal characteristics of harmful algal blooms in the southwest Bohai sea[J]. CONTINENTAL SHELF RESEARCH,2013,59:10-17.
APA	Wu, Zaixing.,Yu, Zhiming.,Song, Xiuxian.,Yuan, Yongquan.,Cao, Xihua.,...&Yu, ZM.(2013).The spatial and temporal characteristics of harmful algal blooms in the southwest Bohai sea.CONTINENTAL SHELF RESEARCH,59,10-17.
MLA	Wu, Zaixing,et al."The spatial and temporal characteristics of harmful algal blooms in the southwest Bohai sea".CONTINENTAL SHELF RESEARCH 59(2013):10-17.

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