Persistent organic pollutants in Antarctic notothenioid fish and invertebrates associated with trophic levels.

Notothenioid fish and invertebrate samples from Antarctica were collected in the austral summer of 2009, and analyzed for persistent organic pollutants (POPs), including polycyclic aromatic hydrocarbons (PAHs), organochlorine pesticides (OCPs), and polybrominated diphenylethers (PBDEs), as well as δ...

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Bibliographic Details
Published in:PLOS ONE
Main Authors: Fung-Chi Ko, Wei-Ling Pan, Jing-O Cheng, Te-Hao Chen, Fu-Wen Kuo, Shu-Ji Kao, Chih-Wei Chang, Hsuan-Ching Ho, Wei-Hsien Wang, Li-Sing Fang
Format: Article in Journal/Newspaper
Language:English
Published: Public Library of Science (PLoS) 2018
Subjects:
Medicine
R
Science
Q
Antarctic
The Antarctic
Austral
Antarc*
Antarctica
Online Access:https://doi.org/10.1371/journal.pone.0194147
https://doaj.org/article/06e975859dcf4de98f8c4e90ceebf52b
Description
Summary:Notothenioid fish and invertebrate samples from Antarctica were collected in the austral summer of 2009, and analyzed for persistent organic pollutants (POPs), including polycyclic aromatic hydrocarbons (PAHs), organochlorine pesticides (OCPs), and polybrominated diphenylethers (PBDEs), as well as δ13C and δ15N stable isotopes for trophic level determination. In this study, the POP levels in the Antarctic biota samples were found to be ranked in the following order: OCPs > PAHs >> PBDEs. The POP levels in notothenioid fish and krill correlate to trophic levels; however, the POP concentrations in intertidal benthic invertebrates are higher than in notothenioid fish implying that specific biogeochemical factors may affect bioaccumulation in the Antarctica ecosystem. Biomagnification of POPs may have a smaller role than bioconcentration in Antarctica environment. In addition to the source, transport, exposure, and absorption for each group of POPs in the short food chain in Antarctica, the biological variation among species, interaction habitats, diet and metabolism are also factors for future studies on contaminant bioaccumulation.

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