Mobilisation of lipophilic pollutants from blubber in northern elephant seal pups (Mirounga angustirostris) during the post-weaning fast
peer reviewed Northern elephant seals (NES) (Mirounga angustirostris) from the Año Nuevo State Reserve (CA, USA) were longitudinally sampled during the post-weaning fast in order to study the mobilisation and redistribution of various classes of persistent organic pollutants (POPs), such as polybrom...
Published in: | Environmental Research |
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Academic Press
2014
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Online Access: | https://orbi.uliege.be/handle/2268/168377 https://orbi.uliege.be/bitstream/2268/168377/1/2014%20ER%20132%20p%20438%20Louis%20.pdf https://doi.org/10.1016/j.envres.2014.04.016 |
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ftorbi:oai:orbi.ulg.ac.be:2268/168377 2024-10-13T14:06:56+00:00 Mobilisation of lipophilic pollutants from blubber in northern elephant seal pups (Mirounga angustirostris) during the post-weaning fast Louis, Caroline Dirtu, Alin C. Stas, Marie Guiot, Yves Malarvannan, Govindan Das, Krishna Costa, Daniel P. Crocker, Daniel E. Covaci, Adrian Debier, Cathy MARE - Centre Interfacultaire de Recherches en Océanologie - ULiège 2014 https://orbi.uliege.be/handle/2268/168377 https://orbi.uliege.be/bitstream/2268/168377/1/2014%20ER%20132%20p%20438%20Louis%20.pdf https://doi.org/10.1016/j.envres.2014.04.016 en eng Academic Press urn:issn:0013-9351 urn:issn:1096-0953 https://orbi.uliege.be/handle/2268/168377 info:hdl:2268/168377 https://orbi.uliege.be/bitstream/2268/168377/1/2014%20ER%20132%20p%20438%20Louis%20.pdf doi:10.1016/j.envres.2014.04.016 info:pmid:24858284 open access http://purl.org/coar/access_right/c_abf2 info:eu-repo/semantics/openAccess Environmental Research, 132, 438-448 (2014) Northern elephant seal PCBs PBDEs Pesticides blubber serum Life sciences Environmental sciences & ecology Aquatic sciences & oceanology Sciences du vivant Sciences de l’environnement & écologie Sciences aquatiques & océanologie journal article http://purl.org/coar/resource_type/c_6501 info:eu-repo/semantics/article peer reviewed 2014 ftorbi https://doi.org/10.1016/j.envres.2014.04.016 2024-09-27T07:01:56Z peer reviewed Northern elephant seals (NES) (Mirounga angustirostris) from the Año Nuevo State Reserve (CA, USA) were longitudinally sampled during the post-weaning fast in order to study the mobilisation and redistribution of various classes of persistent organic pollutants (POPs), such as polybrominated diphenyl ethers (PBDEs), polychlorinated biphenyls (PCBs), dichlorodiphenyldichloroethylene (p,p′-DDE) and hexachlorobenzene (HCB) between blubber and blood. Inner and outer blubber layers were analysed separately. Organohalogenated compounds were detected in all blubber samples in the decreasing order of their concentrations: p,p′-DDE>PCBs⪢HCB>PBDEs. The concentrations of all studied compounds were homogeneously distributed in the blubber layer at early fast, since the concentrations of POPs were statistically not different in the inner and outer layers. With the progression of the fast, the concentrations of PBDEs, PCBs and p,p′-DDE increased more sharply in inner blubber than in outer blubber. As a result, their levels became significantly higher in inner blubber as compared to outer blubber at late fast. The rise of pollutant concentrations in blubber might result from a less efficient mobilisation than triglycerides and/or a reuptake by adipocytes of some of the pollutants released into the circulation. The mobilisation of pollutants from blubber was higher at late fast. An increase of pollutant concentrations was observed in serum between early and late fast. Lower halogenated congeners (i.e. tetra-CBs) were present in higher proportions in serum, whereas the higher halogenated congeners (i.e. hepta-CBs) were mainly found in the inner and outer blubber layers. The transfer ratios of both PBDEs and PCBs from inner blubber to serum decreased with the number of chlorine and bromine atoms. In addition, the distribution of both types of compounds between serum and blubber was strongly influenced by their lipophilic character (log Kow values), with more lipophilic compounds being less efficiently ... Article in Journal/Newspaper Elephant Seal Elephant Seals University of Liège: ORBi (Open Repository and Bibliography) Nes ENVELOPE(7.634,7.634,62.795,62.795) Nes’ ENVELOPE(44.681,44.681,66.600,66.600) Environmental Research 132 438 448 |
institution |
Open Polar |
collection |
University of Liège: ORBi (Open Repository and Bibliography) |
op_collection_id |
ftorbi |
language |
English |
topic |
Northern elephant seal PCBs PBDEs Pesticides blubber serum Life sciences Environmental sciences & ecology Aquatic sciences & oceanology Sciences du vivant Sciences de l’environnement & écologie Sciences aquatiques & océanologie |
spellingShingle |
Northern elephant seal PCBs PBDEs Pesticides blubber serum Life sciences Environmental sciences & ecology Aquatic sciences & oceanology Sciences du vivant Sciences de l’environnement & écologie Sciences aquatiques & océanologie Louis, Caroline Dirtu, Alin C. Stas, Marie Guiot, Yves Malarvannan, Govindan Das, Krishna Costa, Daniel P. Crocker, Daniel E. Covaci, Adrian Debier, Cathy Mobilisation of lipophilic pollutants from blubber in northern elephant seal pups (Mirounga angustirostris) during the post-weaning fast |
topic_facet |
Northern elephant seal PCBs PBDEs Pesticides blubber serum Life sciences Environmental sciences & ecology Aquatic sciences & oceanology Sciences du vivant Sciences de l’environnement & écologie Sciences aquatiques & océanologie |
description |
peer reviewed Northern elephant seals (NES) (Mirounga angustirostris) from the Año Nuevo State Reserve (CA, USA) were longitudinally sampled during the post-weaning fast in order to study the mobilisation and redistribution of various classes of persistent organic pollutants (POPs), such as polybrominated diphenyl ethers (PBDEs), polychlorinated biphenyls (PCBs), dichlorodiphenyldichloroethylene (p,p′-DDE) and hexachlorobenzene (HCB) between blubber and blood. Inner and outer blubber layers were analysed separately. Organohalogenated compounds were detected in all blubber samples in the decreasing order of their concentrations: p,p′-DDE>PCBs⪢HCB>PBDEs. The concentrations of all studied compounds were homogeneously distributed in the blubber layer at early fast, since the concentrations of POPs were statistically not different in the inner and outer layers. With the progression of the fast, the concentrations of PBDEs, PCBs and p,p′-DDE increased more sharply in inner blubber than in outer blubber. As a result, their levels became significantly higher in inner blubber as compared to outer blubber at late fast. The rise of pollutant concentrations in blubber might result from a less efficient mobilisation than triglycerides and/or a reuptake by adipocytes of some of the pollutants released into the circulation. The mobilisation of pollutants from blubber was higher at late fast. An increase of pollutant concentrations was observed in serum between early and late fast. Lower halogenated congeners (i.e. tetra-CBs) were present in higher proportions in serum, whereas the higher halogenated congeners (i.e. hepta-CBs) were mainly found in the inner and outer blubber layers. The transfer ratios of both PBDEs and PCBs from inner blubber to serum decreased with the number of chlorine and bromine atoms. In addition, the distribution of both types of compounds between serum and blubber was strongly influenced by their lipophilic character (log Kow values), with more lipophilic compounds being less efficiently ... |
author2 |
MARE - Centre Interfacultaire de Recherches en Océanologie - ULiège |
format |
Article in Journal/Newspaper |
author |
Louis, Caroline Dirtu, Alin C. Stas, Marie Guiot, Yves Malarvannan, Govindan Das, Krishna Costa, Daniel P. Crocker, Daniel E. Covaci, Adrian Debier, Cathy |
author_facet |
Louis, Caroline Dirtu, Alin C. Stas, Marie Guiot, Yves Malarvannan, Govindan Das, Krishna Costa, Daniel P. Crocker, Daniel E. Covaci, Adrian Debier, Cathy |
author_sort |
Louis, Caroline |
title |
Mobilisation of lipophilic pollutants from blubber in northern elephant seal pups (Mirounga angustirostris) during the post-weaning fast |
title_short |
Mobilisation of lipophilic pollutants from blubber in northern elephant seal pups (Mirounga angustirostris) during the post-weaning fast |
title_full |
Mobilisation of lipophilic pollutants from blubber in northern elephant seal pups (Mirounga angustirostris) during the post-weaning fast |
title_fullStr |
Mobilisation of lipophilic pollutants from blubber in northern elephant seal pups (Mirounga angustirostris) during the post-weaning fast |
title_full_unstemmed |
Mobilisation of lipophilic pollutants from blubber in northern elephant seal pups (Mirounga angustirostris) during the post-weaning fast |
title_sort |
mobilisation of lipophilic pollutants from blubber in northern elephant seal pups (mirounga angustirostris) during the post-weaning fast |
publisher |
Academic Press |
publishDate |
2014 |
url |
https://orbi.uliege.be/handle/2268/168377 https://orbi.uliege.be/bitstream/2268/168377/1/2014%20ER%20132%20p%20438%20Louis%20.pdf https://doi.org/10.1016/j.envres.2014.04.016 |
long_lat |
ENVELOPE(7.634,7.634,62.795,62.795) ENVELOPE(44.681,44.681,66.600,66.600) |
geographic |
Nes Nes’ |
geographic_facet |
Nes Nes’ |
genre |
Elephant Seal Elephant Seals |
genre_facet |
Elephant Seal Elephant Seals |
op_source |
Environmental Research, 132, 438-448 (2014) |
op_relation |
urn:issn:0013-9351 urn:issn:1096-0953 https://orbi.uliege.be/handle/2268/168377 info:hdl:2268/168377 https://orbi.uliege.be/bitstream/2268/168377/1/2014%20ER%20132%20p%20438%20Louis%20.pdf doi:10.1016/j.envres.2014.04.016 info:pmid:24858284 |
op_rights |
open access http://purl.org/coar/access_right/c_abf2 info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1016/j.envres.2014.04.016 |
container_title |
Environmental Research |
container_volume |
132 |
container_start_page |
438 |
op_container_end_page |
448 |
_version_ |
1812813167095447552 |