Assessing the trophic ecology and migration on the exposure of cape petrels and Wilson's storm petrels from Antarctica to perfluoroalkylated substances, trace and major elements
Chemical pollution is a global concern as contaminants are transported and reach even the remote regions of Antarctica. Seabirds serve as important sentinels of pollution due to their high trophic position and wide distribution. This study examines the influence of migration and trophic ecology on the exposure of two Antarctic seabirds, Wilson's storm petrel (Oceanites oceanicus - Ooc), and Cape petrel (Daption capense - Dca), to chemical elements and perfluoroalkyl substances (PFAS). Our methodology involved assessing the concentration of these pollutants in feather samples obtained from carcasses, offering a practical means for monitoring contamination. Trace and major element concentrations were comparable in both species, suggesting that migratory patterns have a minimal impact on exposure levels. However, Ooc had higher concentration of PFAS compared to Dca (mean, ng g−1dry weight, PFOA: Ooc:0.710, Dca:0.170; PFTrDA: Ooc:0.550, Dca:0.360, and PFTeDA: Ooc:1.01, Dca:0.190), indicating that migration to the more polluted Northern Hemisphere significantly affects PFAS exposure. Furthermore, while no strong associations were found between either trace elements or PFAS and the three stable isotopes (δ13C, δ15N, and δ34S), a negative association was observed between PFUnDA and δ15N, hinting at potential biodilution. The research concludes that the migratory patterns of these seabird species affect their PFAS exposure, underscoring the critical need for further exploration and understanding of these relationships to better inform conservation strategies.
Source (journal)
Environmental research. - Amsterdam, 1967, currens
Amsterdam : Elsevier , 2024
0013-9351 [print]
1096-0953 [online]
244 (2024) , p. 1-12
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The author-created version that incorporates referee comments and is the accepted for publication version Available from 16.06.2024
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Toxicity of Perfluoralkyl Substances (PFAAs) to terrestrial invertebrates and songbirds. Effects at different levels of biological organization including behaviour and reproduction.
Are internal concentrations of micro pollutants in aquatic organisms predictive of the ecological quality of water courses?
Influence of soil properties on the sorption of per- and polyfluoroalkylated substances to soil and the bioavailability and bioaccumulation to terrestrial biota.
Effects of the chemical structure of per- and polyfluoroalkyl substances (PFAS) on the bioaccumulation and toxicity to terrestrial and aquatic plants and invertebrates.
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Publications with a UAntwerp address
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Creation 18.12.2023
Last edited 19.12.2023
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