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.

peer reviewed 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 trophi...

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Bibliographic Details
Published in:Environmental Research
Main Authors: Padilha, J A G, Santos, S, Willems, T, Souza-Kasprzyk, J, Leite, A, Cunha, L S T, Costa, E S, Pessôa, A R, Eens, M, E, Prinsen, Torres, J P M, Das, Krishna, Lepoint, Gilles, Dorneles, Paulo Renato, Bervoets, Lieven, Groffen, T
Other Authors: FOCUS - Freshwater and OCeanic science Unit of reSearch - ULiège BE
Format: Article in Journal/Newspaper
Language:English
Published: Academic Press Inc. 2024
Subjects:
Feathers
Metals
PFAS
Polar environment
Seabirds
Antarctica
Chemical pollution
Feather
Major elements
Migratory patterns
Perfluoroalkyl substances
Perfluoroalkylated substances
Polar environments
Seabird
Traces elements
Biochemistry
Environmental Science (all)
General Environmental Science
marine ecotoxicology
wildlife toxicology
Life sciences
Aquatic sciences & oceanology
Environmental sciences & ecology
Sciences du vivant
Sciences aquatiques & océanologie
Sciences de l’environnement & écologie
Antarctic
Antarc*
Cape Petrel
Cape Petrels
Daption capense
Online Access:https://orbi.uliege.be/handle/2268/311816
https://orbi.uliege.be/bitstream/2268/311816/1/1-s2.0-S0013935123026312-main.pdf
https://doi.org/10.1016/j.envres.2023.117827
Description
Summary:peer reviewed 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. 14. Life below water

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