Potential association between exposure to legacy persistent organic pollutants and parasitic body burdens in Indo-Pacific finless porpoises from the Pearl River Estuary, China
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...
Published in: | Science of The Total Environment |
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Language: | English |
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Online Access: | http://ir.gig.ac.cn/handle/344008/53315 https://doi.org/10.1016/j.scitotenv.2018.06.249 |
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ftchacadscgigcas:oai:ir.gig.ac.cn:344008/53315 2023-05-15T17:53:59+02:00 Potential association between exposure to legacy persistent organic pollutants and parasitic body burdens in Indo-Pacific finless porpoises from the Pearl River Estuary, China Gui, Duan He, Jingwen Zhang, Xiyang Tu, Qin Chen, Laiguo Feng, Kangkang Liu, Wei Mai, Bixian Wu, Yuping 2018-12-01 http://ir.gig.ac.cn/handle/344008/53315 https://doi.org/10.1016/j.scitotenv.2018.06.249 英语 eng ELSEVIER SCIENCE BV SCIENCE OF THE TOTAL ENVIRONMENT http://ir.gig.ac.cn/handle/344008/53315 doi:10.1016/j.scitotenv.2018.06.249 Environmental Sciences & Ecology Indo-Pacific finless porpoises Persistent organic pollutants Infectious diseases Environmental Sciences POLYCYCLIC AROMATIC-HYDROCARBONS DOLPHINS SOUSA-CHINENSIS POLYBROMINATED DIPHENYL ETHERS WHALES ORCINUS-ORCA HONG-KONG WATERS MARINE MAMMALS SOUTH CHINA POLYCHLORINATED-BIPHENYLS HUMPBACK DOLPHINS ORGANOCHLORINE PESTICIDES 期刊论文 2018 ftchacadscgigcas https://doi.org/10.1016/j.scitotenv.2018.06.249 2020-12-22T07:22:45Z 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. Report Orca Orcinus orca Guangzhou Institute of Geochemistry: GIG OpenIR (Chinese Academy of Sciences) Pacific Science of The Total Environment 643 785 792 |
institution |
Open Polar |
collection |
Guangzhou Institute of Geochemistry: GIG OpenIR (Chinese Academy of Sciences) |
op_collection_id |
ftchacadscgigcas |
language |
English |
topic |
Environmental Sciences & Ecology Indo-Pacific finless porpoises Persistent organic pollutants Infectious diseases Environmental Sciences POLYCYCLIC AROMATIC-HYDROCARBONS DOLPHINS SOUSA-CHINENSIS POLYBROMINATED DIPHENYL ETHERS WHALES ORCINUS-ORCA HONG-KONG WATERS MARINE MAMMALS SOUTH CHINA POLYCHLORINATED-BIPHENYLS HUMPBACK DOLPHINS ORGANOCHLORINE PESTICIDES |
spellingShingle |
Environmental Sciences & Ecology Indo-Pacific finless porpoises Persistent organic pollutants Infectious diseases Environmental Sciences POLYCYCLIC AROMATIC-HYDROCARBONS DOLPHINS SOUSA-CHINENSIS POLYBROMINATED DIPHENYL ETHERS WHALES ORCINUS-ORCA HONG-KONG WATERS MARINE MAMMALS SOUTH CHINA POLYCHLORINATED-BIPHENYLS HUMPBACK DOLPHINS ORGANOCHLORINE PESTICIDES Gui, Duan He, Jingwen Zhang, Xiyang Tu, Qin Chen, Laiguo Feng, Kangkang Liu, Wei Mai, Bixian Wu, Yuping Potential association between exposure to legacy persistent organic pollutants and parasitic body burdens in Indo-Pacific finless porpoises from the Pearl River Estuary, China |
topic_facet |
Environmental Sciences & Ecology Indo-Pacific finless porpoises Persistent organic pollutants Infectious diseases Environmental Sciences POLYCYCLIC AROMATIC-HYDROCARBONS DOLPHINS SOUSA-CHINENSIS POLYBROMINATED DIPHENYL ETHERS WHALES ORCINUS-ORCA HONG-KONG WATERS MARINE MAMMALS SOUTH CHINA POLYCHLORINATED-BIPHENYLS HUMPBACK DOLPHINS ORGANOCHLORINE PESTICIDES |
description |
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. |
format |
Report |
author |
Gui, Duan He, Jingwen Zhang, Xiyang Tu, Qin Chen, Laiguo Feng, Kangkang Liu, Wei Mai, Bixian Wu, Yuping |
author_facet |
Gui, Duan He, Jingwen Zhang, Xiyang Tu, Qin Chen, Laiguo Feng, Kangkang Liu, Wei Mai, Bixian Wu, Yuping |
author_sort |
Gui, Duan |
title |
Potential association between exposure to legacy persistent organic pollutants and parasitic body burdens in Indo-Pacific finless porpoises from the Pearl River Estuary, China |
title_short |
Potential association between exposure to legacy persistent organic pollutants and parasitic body burdens in Indo-Pacific finless porpoises from the Pearl River Estuary, China |
title_full |
Potential association between exposure to legacy persistent organic pollutants and parasitic body burdens in Indo-Pacific finless porpoises from the Pearl River Estuary, China |
title_fullStr |
Potential association between exposure to legacy persistent organic pollutants and parasitic body burdens in Indo-Pacific finless porpoises from the Pearl River Estuary, China |
title_full_unstemmed |
Potential association between exposure to legacy persistent organic pollutants and parasitic body burdens in Indo-Pacific finless porpoises from the Pearl River Estuary, China |
title_sort |
potential association between exposure to legacy persistent organic pollutants and parasitic body burdens in indo-pacific finless porpoises from the pearl river estuary, china |
publisher |
ELSEVIER SCIENCE BV |
publishDate |
2018 |
url |
http://ir.gig.ac.cn/handle/344008/53315 https://doi.org/10.1016/j.scitotenv.2018.06.249 |
geographic |
Pacific |
geographic_facet |
Pacific |
genre |
Orca Orcinus orca |
genre_facet |
Orca Orcinus orca |
op_relation |
SCIENCE OF THE TOTAL ENVIRONMENT http://ir.gig.ac.cn/handle/344008/53315 doi:10.1016/j.scitotenv.2018.06.249 |
op_doi |
https://doi.org/10.1016/j.scitotenv.2018.06.249 |
container_title |
Science of The Total Environment |
container_volume |
643 |
container_start_page |
785 |
op_container_end_page |
792 |
_version_ |
1766161703681130496 |