Bioaccumulation of hydroxylated polychlorinated biphenyls and pentachlorophenol in the serum of northern elephant seal pups (Mirounga angustirostris)
Northern elephant seals (NES) (Mirounga angustirostris) from the Año Nuevo State Reserve (CA, USA) were sampled at 1-, 4-, 7- and 10-week post-weaning. Concentrations of hydroxylated polychlorinated biphenyls (HO-PCBs) and their parent PCBs were measured in the serum of each individual. The ΣHO-PC...
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ftunistlouisbrus:oai:dial.uclouvain.be:boreal:156451 2024-05-12T08:03:09+00:00 Bioaccumulation of hydroxylated polychlorinated biphenyls and pentachlorophenol in the serum of northern elephant seal pups (Mirounga angustirostris) Louis , Caroline Covaci, Adrian Stas, Marie Crocker, Daniel Malarvannan, Govindan Dirtu, Alin Debier, Cathy UCL - SST/ISV - Institut des sciences de la vie 2015 http://hdl.handle.net/2078.1/156451 https://doi.org/10.1016/j.envres.2014.08.040 eng eng Academic Press boreal:156451 http://hdl.handle.net/2078.1/156451 doi:10.1016/j.envres.2014.08.040 urn:ISSN:0013-9351 urn:EISSN:1096-0953 info:eu-repo/semantics/openAccess Environmental Research, Vol. 136, p. 441-448 (2015) info:eu-repo/semantics/article 2015 ftunistlouisbrus https://doi.org/10.1016/j.envres.2014.08.040 2024-04-18T17:51:51Z Northern elephant seals (NES) (Mirounga angustirostris) from the Año Nuevo State Reserve (CA, USA) were sampled at 1-, 4-, 7- and 10-week post-weaning. Concentrations of hydroxylated polychlorinated biphenyls (HO-PCBs) and their parent PCBs were measured in the serum of each individual. The ΣHO-PCB concentrations in the serum increased significantly between early and late fast (from 282±20 to 529±31 pg/mL). This increase might result from a mobilisation of HO-PCBs transferred from the mother during gestation and/or lactation and stored in the pup's liver. Food deprivation has been shown to exacerbate biotransformation capacities in mammals, birds and fish. The HO-penta-CBs was the predominant homologue group, followed by HO-hexa-CBs and HO-hepta-CBs. No preferential pathway for the metabolism of HO-PCBs (HO-direct insertion or NIH-shift of a chlorine atom) could be evidenced. The concentrations of pentachlorophenol (PCP) in the serum of weaned NES increased from 103±7 pg/mL at early fast to 246±41 pg/mL at late fast, which is within the range of PCP concentrations usually encountered in marine mammals. Article in Journal/Newspaper Elephant Seal Elephant Seals DIAL@USL-B (Université Saint-Louis, Bruxelles) Nes ENVELOPE(7.634,7.634,62.795,62.795) Nes’ ENVELOPE(44.681,44.681,66.600,66.600) Environmental Research 136 441 448 |
institution |
Open Polar |
collection |
DIAL@USL-B (Université Saint-Louis, Bruxelles) |
op_collection_id |
ftunistlouisbrus |
language |
English |
description |
Northern elephant seals (NES) (Mirounga angustirostris) from the Año Nuevo State Reserve (CA, USA) were sampled at 1-, 4-, 7- and 10-week post-weaning. Concentrations of hydroxylated polychlorinated biphenyls (HO-PCBs) and their parent PCBs were measured in the serum of each individual. The ΣHO-PCB concentrations in the serum increased significantly between early and late fast (from 282±20 to 529±31 pg/mL). This increase might result from a mobilisation of HO-PCBs transferred from the mother during gestation and/or lactation and stored in the pup's liver. Food deprivation has been shown to exacerbate biotransformation capacities in mammals, birds and fish. The HO-penta-CBs was the predominant homologue group, followed by HO-hexa-CBs and HO-hepta-CBs. No preferential pathway for the metabolism of HO-PCBs (HO-direct insertion or NIH-shift of a chlorine atom) could be evidenced. The concentrations of pentachlorophenol (PCP) in the serum of weaned NES increased from 103±7 pg/mL at early fast to 246±41 pg/mL at late fast, which is within the range of PCP concentrations usually encountered in marine mammals. |
author2 |
UCL - SST/ISV - Institut des sciences de la vie |
format |
Article in Journal/Newspaper |
author |
Louis , Caroline Covaci, Adrian Stas, Marie Crocker, Daniel Malarvannan, Govindan Dirtu, Alin Debier, Cathy |
spellingShingle |
Louis , Caroline Covaci, Adrian Stas, Marie Crocker, Daniel Malarvannan, Govindan Dirtu, Alin Debier, Cathy Bioaccumulation of hydroxylated polychlorinated biphenyls and pentachlorophenol in the serum of northern elephant seal pups (Mirounga angustirostris) |
author_facet |
Louis , Caroline Covaci, Adrian Stas, Marie Crocker, Daniel Malarvannan, Govindan Dirtu, Alin Debier, Cathy |
author_sort |
Louis , Caroline |
title |
Bioaccumulation of hydroxylated polychlorinated biphenyls and pentachlorophenol in the serum of northern elephant seal pups (Mirounga angustirostris) |
title_short |
Bioaccumulation of hydroxylated polychlorinated biphenyls and pentachlorophenol in the serum of northern elephant seal pups (Mirounga angustirostris) |
title_full |
Bioaccumulation of hydroxylated polychlorinated biphenyls and pentachlorophenol in the serum of northern elephant seal pups (Mirounga angustirostris) |
title_fullStr |
Bioaccumulation of hydroxylated polychlorinated biphenyls and pentachlorophenol in the serum of northern elephant seal pups (Mirounga angustirostris) |
title_full_unstemmed |
Bioaccumulation of hydroxylated polychlorinated biphenyls and pentachlorophenol in the serum of northern elephant seal pups (Mirounga angustirostris) |
title_sort |
bioaccumulation of hydroxylated polychlorinated biphenyls and pentachlorophenol in the serum of northern elephant seal pups (mirounga angustirostris) |
publisher |
Academic Press |
publishDate |
2015 |
url |
http://hdl.handle.net/2078.1/156451 https://doi.org/10.1016/j.envres.2014.08.040 |
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, Vol. 136, p. 441-448 (2015) |
op_relation |
boreal:156451 http://hdl.handle.net/2078.1/156451 doi:10.1016/j.envres.2014.08.040 urn:ISSN:0013-9351 urn:EISSN:1096-0953 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1016/j.envres.2014.08.040 |
container_title |
Environmental Research |
container_volume |
136 |
container_start_page |
441 |
op_container_end_page |
448 |
_version_ |
1798845251767500800 |