Potential association between exposure to legacy persistent organic pollutants and parasitic body burdens in Indo-Pacific finless porpoises from the Pearl River Estuary, China

doi:10.1016/j.scitotenv.2018.06.249

GIG OpenIR

	Gui, Duan 1; He, Jingwen 1; Zhang, Xiyang 1; Tu, Qin 1; Chen, Laiguo 2; Feng, Kangkang 3; Liu, Wei 3; Mai, Bixian 4,5; Wu, Yuping 1
	Potential association between exposure to legacy persistent organic pollutants and parasitic body burdens in Indo-Pacific finless porpoises from the Pearl River Estuary, China
刊名	SCIENCE OF THE TOTAL ENVIRONMENT
ISSN号	0048-9697
	2018-12-01
卷号	643 页码:785-792
DOI	10.1016/j.scitotenv.2018.06.249
语种	英语
WOS研究方向	Environmental Sciences & Ecology
摘要	A high prevalence of infectious diseases (mostly lungworms) is found in finless porpoises (genus Neophocaena) in the coastal waters of China, which is one of the most dichlorodiphenyltrichloroethane (DDT)- polluted areas worldwide, while its association with contaminant exposure remains undetermined. To address this gap, we investigated blubber levels of polychlorinated diphenyls (PCBs), organochlorine pesticides (OCPs) and polycyclic aromatic hydrocarbons in Indo- Pacific finless porpoises (Neophocaena phocaenoides) stranded in the Pearl River Estuary (PRE) of China. In the post- mortem examinations, lungworms (Halocercus species) were found to be the most common parasites, with a high density observed in lungs and bronchi. Severe infections by nematode parasites were also found in the uterus (Cystidicola species), intestine (Anisakis typica) and muscle (A. typica). For all the pollutant compounds analyzed, only the concentrations of p,p'-DDT, p,p'dichlorodiphenyldichloroethane (DDD) and o,p'-DDD were significantly higher in porpoises died of infectious diseases than in the "healthy" individuals (died from physical trauma). Contrasted accumulation pattern of DDTs and their metabolites was found between animals with different health status. The proportion of p, p'DDT in Sigma DDTs was higher than that of p,p'- dichlorodiphenyldichloroethylene (DDE) in diseased animals, whereas an opposite pattern was shown for "healthy" ones. While this study is the first to describe a significant positive correlation between parasitic diseases and high levels of DDTs in cetaceans, the direction of causality cannot be determined in our data: either a parasitic infection affected the porpoises' ability to metabolize DDTs, resulting in high levels of p,p'-DDT in their blubber, or the pollutant burden rendered them more susceptible to parasitic infection. (c) 2018 Elsevier B.V. All rights reserved.
关键词	Indo-Pacific finless porpoises Persistent organic pollutants Infectious diseases
WOS记录号	WOS:000444625900072
收录类别	SCI
引用统计
文献类型	期刊论文
条目标识符	http://ir.gig.ac.cn/handle/344008/53315
通讯作者	Wu, Yuping
作者单位	1.Sun Yat Sen Univ, Zhuhai Key Lab Marine Bioresources & Environm, Sch Marine Sci, Guangdong Prov Key Lab Marine Resources & Coastal, Zhuhai 519000, Peoples R China 2.South China Inst Environm Sci SCIES, Urban Environm & Ecol Res Ctr, Minist Environm Protect, Guangzhou 510655, Guangdong, Peoples R China 3.Guangdong Jiangmen Chinese White Dolphin Prov Nat, Jiangmen 529000, Peoples R China 4.Chinese Acad Sci, State Key Lab Organ Geochem, Guangzhou Inst Geochem, Guangzhou 510640, Guangdong, Peoples R China 5.Chinese Acad Sci, Guangdong Key Lab Environm Protect & Resources Ut, Guangzhou Inst Geochem, Guangzhou 510640, Guangdong, Peoples R China
推荐引用方式 GB/T 7714	Gui, Duan,He, Jingwen,Zhang, Xiyang,et al. Potential association between exposure to legacy persistent organic pollutants and parasitic body burdens in Indo-Pacific finless porpoises from the Pearl River Estuary, China[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2018,643:785-792.
APA	Gui, Duan.,He, Jingwen.,Zhang, Xiyang.,Tu, Qin.,Chen, Laiguo.,...&Wu, Yuping.(2018).Potential association between exposure to legacy persistent organic pollutants and parasitic body burdens in Indo-Pacific finless porpoises from the Pearl River Estuary, China.SCIENCE OF THE TOTAL ENVIRONMENT,643,785-792.
MLA	Gui, Duan,et al."Potential association between exposure to legacy persistent organic pollutants and parasitic body burdens in Indo-Pacific finless porpoises from the Pearl River Estuary, China".SCIENCE OF THE TOTAL ENVIRONMENT 643(2018):785-792.