Organohalogenated contaminants in plasma and eggs of rockhopper penguins : does vitellogenin affect maternal transfer?
Abstract: Although many studies have investigated organohalogenated contaminants (OHCs) in yolk, little is known about the mechanisms and timing of transfer of OHCs from the female to the egg. Vitellogenin, a yolk precursor, has been suggested to play a role in this transport. We here report for the...
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Language: | English |
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2017
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Online Access: | https://hdl.handle.net/10067/1427560151162165141 https://repository.uantwerpen.be/docman/irua/268391/142756_2019_04_07.pdf |
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ftunivantwerpen:c:irua:142756 2023-07-16T04:00:42+02:00 Organohalogenated contaminants in plasma and eggs of rockhopper penguins : does vitellogenin affect maternal transfer? Dehnhard, Nina Jaspers, Veerle L.B. Demongin, Laurent van den Steen, Evi Covaci, Adrian Pinxten, Rianne Crossin, Glenn T. Quillfeldt, Petra Eens, Marcel Poisbleau, Maud 2017 pdf https://hdl.handle.net/10067/1427560151162165141 https://repository.uantwerpen.be/docman/irua/268391/142756_2019_04_07.pdf eng eng info:eu-repo/semantics/altIdentifier/doi/10.1016/J.ENVPOL.2017.03.071 info:eu-repo/semantics/altIdentifier/isi/000405881800030 info:eu-repo/semantics/openAccess 0269-7491 Environmental pollution Chemistry Biology info:eu-repo/semantics/acceptedVersion info:eu-repo/semantics/article 2017 ftunivantwerpen https://doi.org/10.1016/J.ENVPOL.2017.03.071 2023-06-26T22:22:34Z Abstract: Although many studies have investigated organohalogenated contaminants (OHCs) in yolk, little is known about the mechanisms and timing of transfer of OHCs from the female to the egg. Vitellogenin, a yolk precursor, has been suggested to play a role in this transport. We here report for the first time the temporal changes in OHC and an index of vitellogenin concentrations in female plasma from the pre-laying period to clutch completion in free-living birds: the southern rockhopper penguin (Eudyptes chrysocome chrysocome) breeding in the Falkland/Malvinas Islands. In addition, OHC concentrations in the corresponding clutches were analysed. OHC concentrations in female plasma and in the yolk of both the first (A-) and the second (B-)eggs followed a similar pattern, with hexachlorobenzene (HCB) > Sigma polychlorinated biphenyls (PCBs) > Sigma dichlorodiphenyltrichloroethanes (DDTs) > Sigma methoxylated polybrominated diphenyl ethers (MeO-PBDEs) > Sigma chlordanes (CHLs) > Sigma polybrominated diphenyl ethers (PBDEs) approximate to Sigma hexachlorocyclohexanes (HCHs). The higher concentrations of MeO-PBDEs compared to PBDEs indicate a diet containing naturally-produced MeO-PBDEs. All OHC compounds except for PBDEs increased from the pre-laying period to A-egg laying and subsequently declined from A-egg laying to B-egg laying, and female plasma vitellogenin showed the same pattern. For EPCBs and Sigma MeO-PBDEs, we found positive correlations between female plasma during A-egg laying and both eggs, and for HCB between female plasma and A-eggs only. During pre-laying, only Sigma MeO-PBDEs correlated between both eggs and female plasma, and no correlations between OHC concentrations in eggs and female plasma were found during B-egg laying, highlighting that maternal transfer of OHCs is time- and compound specific. Finally, female vitellogenin concentrations did not significantly correlate with any OHC compounds in either female plasma or eggs, and our results therefore did not confirm the ... Article in Journal/Newspaper Rockhopper penguin IRUA - Institutional Repository van de Universiteit Antwerpen Environmental Pollution 226 277 287 |
institution |
Open Polar |
collection |
IRUA - Institutional Repository van de Universiteit Antwerpen |
op_collection_id |
ftunivantwerpen |
language |
English |
topic |
Chemistry Biology |
spellingShingle |
Chemistry Biology Dehnhard, Nina Jaspers, Veerle L.B. Demongin, Laurent van den Steen, Evi Covaci, Adrian Pinxten, Rianne Crossin, Glenn T. Quillfeldt, Petra Eens, Marcel Poisbleau, Maud Organohalogenated contaminants in plasma and eggs of rockhopper penguins : does vitellogenin affect maternal transfer? |
topic_facet |
Chemistry Biology |
description |
Abstract: Although many studies have investigated organohalogenated contaminants (OHCs) in yolk, little is known about the mechanisms and timing of transfer of OHCs from the female to the egg. Vitellogenin, a yolk precursor, has been suggested to play a role in this transport. We here report for the first time the temporal changes in OHC and an index of vitellogenin concentrations in female plasma from the pre-laying period to clutch completion in free-living birds: the southern rockhopper penguin (Eudyptes chrysocome chrysocome) breeding in the Falkland/Malvinas Islands. In addition, OHC concentrations in the corresponding clutches were analysed. OHC concentrations in female plasma and in the yolk of both the first (A-) and the second (B-)eggs followed a similar pattern, with hexachlorobenzene (HCB) > Sigma polychlorinated biphenyls (PCBs) > Sigma dichlorodiphenyltrichloroethanes (DDTs) > Sigma methoxylated polybrominated diphenyl ethers (MeO-PBDEs) > Sigma chlordanes (CHLs) > Sigma polybrominated diphenyl ethers (PBDEs) approximate to Sigma hexachlorocyclohexanes (HCHs). The higher concentrations of MeO-PBDEs compared to PBDEs indicate a diet containing naturally-produced MeO-PBDEs. All OHC compounds except for PBDEs increased from the pre-laying period to A-egg laying and subsequently declined from A-egg laying to B-egg laying, and female plasma vitellogenin showed the same pattern. For EPCBs and Sigma MeO-PBDEs, we found positive correlations between female plasma during A-egg laying and both eggs, and for HCB between female plasma and A-eggs only. During pre-laying, only Sigma MeO-PBDEs correlated between both eggs and female plasma, and no correlations between OHC concentrations in eggs and female plasma were found during B-egg laying, highlighting that maternal transfer of OHCs is time- and compound specific. Finally, female vitellogenin concentrations did not significantly correlate with any OHC compounds in either female plasma or eggs, and our results therefore did not confirm the ... |
format |
Article in Journal/Newspaper |
author |
Dehnhard, Nina Jaspers, Veerle L.B. Demongin, Laurent van den Steen, Evi Covaci, Adrian Pinxten, Rianne Crossin, Glenn T. Quillfeldt, Petra Eens, Marcel Poisbleau, Maud |
author_facet |
Dehnhard, Nina Jaspers, Veerle L.B. Demongin, Laurent van den Steen, Evi Covaci, Adrian Pinxten, Rianne Crossin, Glenn T. Quillfeldt, Petra Eens, Marcel Poisbleau, Maud |
author_sort |
Dehnhard, Nina |
title |
Organohalogenated contaminants in plasma and eggs of rockhopper penguins : does vitellogenin affect maternal transfer? |
title_short |
Organohalogenated contaminants in plasma and eggs of rockhopper penguins : does vitellogenin affect maternal transfer? |
title_full |
Organohalogenated contaminants in plasma and eggs of rockhopper penguins : does vitellogenin affect maternal transfer? |
title_fullStr |
Organohalogenated contaminants in plasma and eggs of rockhopper penguins : does vitellogenin affect maternal transfer? |
title_full_unstemmed |
Organohalogenated contaminants in plasma and eggs of rockhopper penguins : does vitellogenin affect maternal transfer? |
title_sort |
organohalogenated contaminants in plasma and eggs of rockhopper penguins : does vitellogenin affect maternal transfer? |
publishDate |
2017 |
url |
https://hdl.handle.net/10067/1427560151162165141 https://repository.uantwerpen.be/docman/irua/268391/142756_2019_04_07.pdf |
genre |
Rockhopper penguin |
genre_facet |
Rockhopper penguin |
op_source |
0269-7491 Environmental pollution |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1016/J.ENVPOL.2017.03.071 info:eu-repo/semantics/altIdentifier/isi/000405881800030 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1016/J.ENVPOL.2017.03.071 |
container_title |
Environmental Pollution |
container_volume |
226 |
container_start_page |
277 |
op_container_end_page |
287 |
_version_ |
1771549748561444864 |