PFAS Exposure is Associated with a Lower Spermatic Quality in an Arctic Seabird
2024
Humann‐guilleminot, Ségolène | Blévin, Pierre | Gabrielsen, Geir, Wing | Herzke, Dorte | Nikiforov, Vladimir A. | Jouanneau, William | Moe, Børge | Parenteau, Charline | Helfenstein, Fabrice | Chastel, Olivier | Department of Environmental Science [Radboud Universiteit Nijmegen, Netherlands] ; Radboud University [Nijmegen] | Université de Neufchätel (UNIME) | Centre d'Études Biologiques de Chizé - UMR 7372 (CEBC) ; La Rochelle Université (ULR)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE) | Akvaplan-Niva [Tromsø] ; Norwegian Institute for Water Research (NIVA) | Norwegian Polar Institute | Norwegian Institute for Air Research (NILU) | Norwegian Institute for Nature Research (NINA) | Laboratory of Evolutionary Ecophysiology, Institute of Biology [Neuchâtel, Switzerland] ; Université de Neuchâtel = University of Neuchatel (UNINE) | ANR-21-CE34-0019,ToxSeaBird,Présence et toxicité des substances perfluoroalkylées (PFAS) historiques et émergentes chez les oiseaux de mer: une étude à grande échelle en France métropolitaine et outre-mer(2021)
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Show more [+] Less [-]English. <div><p>Several studies have reported an increasing occurrence of poly-and perfluorinated alkyl substances (PFASs) in Arctic wildlife tissues, raising concerns due to their resistance to degradation. While some research has explored PFAS's physiological effects on birds, their impact on reproductive functions, particularly sperm quality, remains underexplored. This study aims to assess (1) potential association between PFAS concentrations in blood and sperm quality in blacklegged kittiwakes (Rissa tridactyla), focusing on the percentage of abnormal spermatozoa, sperm velocity, percentage of sperm motility, and morphology; and</p><p>(2) examine the association of plasma levels of testosterone, corticosterone, and luteinizing hormone with both PFAS concentrations and sperm quality parameters to assess possible endocrine disrupting pathways. Our findings reveal a positive correlation between the concentration of longer-chain perfluoroalkyl carboxylates (PFCA; C11-C14) in blood and the percentage of abnormal sperm in kittiwakes. Additionally, we observed that two other PFAS (i.e., PFOSlin and PFNA), distinct from those associated with sperm abnormalities, were positively correlated with the stress hormone corticosterone. These findings emphasize the potentially harmful substancespecific effects of long-chain PFCAs on seabirds and the need for further research into the impact of pollutants on sperm quality as a potential additional detrimental effect on birds.</p></div>
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