Bioaccumulation of organochlorine pesticides in Antarctic krill (Euphausia superba): Profile, influencing factors, and mechanisms
Accumulation of organochlorine pesticides (OCPs) in Antarctic krill (Euphausia superba), a keystone species in the Southern Ocean, is potentially harmful to the Antarctic ecosystem and human health. In the current study, we collected E. superba specimens (including muscle and carapace tissues) from...
Published in: | Journal of Hazardous Materials |
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Language: | English |
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ftchacadscgigcas:oai:ir.gig.ac.cn:344008/66391 2023-05-15T13:42:06+02:00 Bioaccumulation of organochlorine pesticides in Antarctic krill (Euphausia superba): Profile, influencing factors, and mechanisms Xie, Jingqian Tao, Ling Wu, Qiang Bian, Zhihe Wang, Mengqiu Li, Yingming Zhu, Guoping Lin, Tian 2022-03-15 http://ir.gig.ac.cn/handle/344008/66391 https://doi.org/10.1016/j.jhazmat.2021.128115 英语 eng ELSEVIER JOURNAL OF HAZARDOUS MATERIALS http://ir.gig.ac.cn/handle/344008/66391 doi:10.1016/j.jhazmat.2021.128115 Engineering Environmental Sciences & Ecology Antarctic krill Organochlorine pesticides Bioaccumulation Trophic linkage in vitro silicon modeling Environmental Environmental Sciences PERSISTENT ORGANIC POLLUTANTS DIPHENYL ETHERS PBDES MARGINAL ICE-ZONE POLYCHLORINATED-BIPHENYLS RESEARCH STATION GROWTH PCBS MODEL OCPS CONTAMINANTS 期刊论文 2022 ftchacadscgigcas https://doi.org/10.1016/j.jhazmat.2021.128115 2022-12-19T19:16:55Z Accumulation of organochlorine pesticides (OCPs) in Antarctic krill (Euphausia superba), a keystone species in the Southern Ocean, is potentially harmful to the Antarctic ecosystem and human health. In the current study, we collected E. superba specimens (including muscle and carapace tissues) from Bransfield Strait in northern Antarctic Peninsula and South Georgia to analyze the profile, influencing factors and mechanisms of OCPs bioaccumulation in them. Results indicated that the biological traits (813C, 815N and lipid contents) of krill were significantly affected by habitat. There may exist growth dilution of OCPs in Antarctic krill and no fresh OCPs input in Antarctica, except for endosulfan I. Based on lipid-normalized concentrations, no significant differences were observed between the two regions at most sampling sites. However, OCP levels showed tissue and sex dependence. Boosted regression trees (BRTs) and partial least squares structural equation models (PLS-SEMs) were built to better investigate the main factors affecting the bioaccumulation of OCPs. Lipid content, negatively correlated with OCP levels, was the main factor. In vitro silicon modeling indicated that CYP3A4 metabolism capacity in krill contributed to the OCP residues except for endosulfan I. The results of this study expand current knowledge of OCPs in Antarctic marine biota, as well as their influencing factors and potential mechanisms. Report Antarc* Antarctic Antarctic Krill Antarctic Peninsula Antarctica Bransfield Strait Euphausia superba Southern Ocean Guangzhou Institute of Geochemistry: GIG OpenIR (Chinese Academy of Sciences) Antarctic Antarctic Peninsula Bransfield Strait Southern Ocean The Antarctic Journal of Hazardous Materials 426 128115 |
institution |
Open Polar |
collection |
Guangzhou Institute of Geochemistry: GIG OpenIR (Chinese Academy of Sciences) |
op_collection_id |
ftchacadscgigcas |
language |
English |
topic |
Engineering Environmental Sciences & Ecology Antarctic krill Organochlorine pesticides Bioaccumulation Trophic linkage in vitro silicon modeling Environmental Environmental Sciences PERSISTENT ORGANIC POLLUTANTS DIPHENYL ETHERS PBDES MARGINAL ICE-ZONE POLYCHLORINATED-BIPHENYLS RESEARCH STATION GROWTH PCBS MODEL OCPS CONTAMINANTS |
spellingShingle |
Engineering Environmental Sciences & Ecology Antarctic krill Organochlorine pesticides Bioaccumulation Trophic linkage in vitro silicon modeling Environmental Environmental Sciences PERSISTENT ORGANIC POLLUTANTS DIPHENYL ETHERS PBDES MARGINAL ICE-ZONE POLYCHLORINATED-BIPHENYLS RESEARCH STATION GROWTH PCBS MODEL OCPS CONTAMINANTS Xie, Jingqian Tao, Ling Wu, Qiang Bian, Zhihe Wang, Mengqiu Li, Yingming Zhu, Guoping Lin, Tian Bioaccumulation of organochlorine pesticides in Antarctic krill (Euphausia superba): Profile, influencing factors, and mechanisms |
topic_facet |
Engineering Environmental Sciences & Ecology Antarctic krill Organochlorine pesticides Bioaccumulation Trophic linkage in vitro silicon modeling Environmental Environmental Sciences PERSISTENT ORGANIC POLLUTANTS DIPHENYL ETHERS PBDES MARGINAL ICE-ZONE POLYCHLORINATED-BIPHENYLS RESEARCH STATION GROWTH PCBS MODEL OCPS CONTAMINANTS |
description |
Accumulation of organochlorine pesticides (OCPs) in Antarctic krill (Euphausia superba), a keystone species in the Southern Ocean, is potentially harmful to the Antarctic ecosystem and human health. In the current study, we collected E. superba specimens (including muscle and carapace tissues) from Bransfield Strait in northern Antarctic Peninsula and South Georgia to analyze the profile, influencing factors and mechanisms of OCPs bioaccumulation in them. Results indicated that the biological traits (813C, 815N and lipid contents) of krill were significantly affected by habitat. There may exist growth dilution of OCPs in Antarctic krill and no fresh OCPs input in Antarctica, except for endosulfan I. Based on lipid-normalized concentrations, no significant differences were observed between the two regions at most sampling sites. However, OCP levels showed tissue and sex dependence. Boosted regression trees (BRTs) and partial least squares structural equation models (PLS-SEMs) were built to better investigate the main factors affecting the bioaccumulation of OCPs. Lipid content, negatively correlated with OCP levels, was the main factor. In vitro silicon modeling indicated that CYP3A4 metabolism capacity in krill contributed to the OCP residues except for endosulfan I. The results of this study expand current knowledge of OCPs in Antarctic marine biota, as well as their influencing factors and potential mechanisms. |
format |
Report |
author |
Xie, Jingqian Tao, Ling Wu, Qiang Bian, Zhihe Wang, Mengqiu Li, Yingming Zhu, Guoping Lin, Tian |
author_facet |
Xie, Jingqian Tao, Ling Wu, Qiang Bian, Zhihe Wang, Mengqiu Li, Yingming Zhu, Guoping Lin, Tian |
author_sort |
Xie, Jingqian |
title |
Bioaccumulation of organochlorine pesticides in Antarctic krill (Euphausia superba): Profile, influencing factors, and mechanisms |
title_short |
Bioaccumulation of organochlorine pesticides in Antarctic krill (Euphausia superba): Profile, influencing factors, and mechanisms |
title_full |
Bioaccumulation of organochlorine pesticides in Antarctic krill (Euphausia superba): Profile, influencing factors, and mechanisms |
title_fullStr |
Bioaccumulation of organochlorine pesticides in Antarctic krill (Euphausia superba): Profile, influencing factors, and mechanisms |
title_full_unstemmed |
Bioaccumulation of organochlorine pesticides in Antarctic krill (Euphausia superba): Profile, influencing factors, and mechanisms |
title_sort |
bioaccumulation of organochlorine pesticides in antarctic krill (euphausia superba): profile, influencing factors, and mechanisms |
publisher |
ELSEVIER |
publishDate |
2022 |
url |
http://ir.gig.ac.cn/handle/344008/66391 https://doi.org/10.1016/j.jhazmat.2021.128115 |
geographic |
Antarctic Antarctic Peninsula Bransfield Strait Southern Ocean The Antarctic |
geographic_facet |
Antarctic Antarctic Peninsula Bransfield Strait Southern Ocean The Antarctic |
genre |
Antarc* Antarctic Antarctic Krill Antarctic Peninsula Antarctica Bransfield Strait Euphausia superba Southern Ocean |
genre_facet |
Antarc* Antarctic Antarctic Krill Antarctic Peninsula Antarctica Bransfield Strait Euphausia superba Southern Ocean |
op_relation |
JOURNAL OF HAZARDOUS MATERIALS http://ir.gig.ac.cn/handle/344008/66391 doi:10.1016/j.jhazmat.2021.128115 |
op_doi |
https://doi.org/10.1016/j.jhazmat.2021.128115 |
container_title |
Journal of Hazardous Materials |
container_volume |
426 |
container_start_page |
128115 |
_version_ |
1766162711102619648 |