Concentrations of chlorinated and brominated contaminants and their metabolites in serum of harbour seals and harbour porpoises
Harbour seals (Phoca vitulina) and harbour porpoises (Phocoena phocoena) are top predators in the North Sea and consequently accumulate a variety of pollutants in their tissues. Concentrations of polychlorinated biphenyls (PCBs), polybrominated diphenyl ethers (PBDEs) and their hydroxylated metaboli...
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Pergamon Press
2009
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ftunivqespace:oai:espace.library.uq.edu.au:UQ:401824 2023-05-15T17:58:59+02:00 Concentrations of chlorinated and brominated contaminants and their metabolites in serum of harbour seals and harbour porpoises Weijs, Liesbeth Das, Krishna Siebert, Ursula van Elk, Niels Jauniaux, Thierry Neels, Hugo Blust, Ronny Covaci, Adrian 2009-08-01 https://espace.library.uq.edu.au/view/UQ:401824 eng eng Pergamon Press doi:10.1016/j.envint.2009.02.001 issn:0160-4120 issn:1873-6750 orcid:0000-0002-2399-1711 Harbour porpoises Harbour seals HO-PCBs MeO-PBDEs Metabolites North Sea PBDEs PCBs Serum 2300 Environmental Science Journal Article 2009 ftunivqespace https://doi.org/10.1016/j.envint.2009.02.001 2020-08-05T21:13:07Z Harbour seals (Phoca vitulina) and harbour porpoises (Phocoena phocoena) are top predators in the North Sea and consequently accumulate a variety of pollutants in their tissues. Concentrations of polychlorinated biphenyls (PCBs), polybrominated diphenyl ethers (PBDEs) and their hydroxylated metabolites (HO-PCBs and HO-PBDEs) were measured in serum of wild harbour seals (n = 47) and captive harbour porpoises (n = 21). Both species exhibit long life spans and do not have extreme situations, such as complete fasting during periods of lactation, in their annual cycles. For PCBs, concentrations in adult males were slightly higher than in juveniles and lowest in juvenile females. For PBDEs, juveniles have higher levels than adult males and females, probably as a consequence of lactational transfer. However, differences between these age-gender groups were not statistical significant, indicating that individual variation was limited within each species, even without knowing the feeding status of the animals. Body condition, particularly emaciation, has a major influence on the levels of chlorinated and brominated contaminants in serum. Profiles of PCBs were CB 153 > CB 138 > CB 187 > CB 180 and CB 153 > CB 138 > CB 149 > CB 187 > CB 180 for harbour seals and porpoises respectively. For PBDEs, BDE 47 was the predominant congener followed by BDE 100 and 99 in both species. In harbour seals, concentrations of sum PCBs (median: 39,200 pg/ml) were more than 200 times higher than levels of sum PBDEs (median: 130 pg/ml) and almost 10 times higher than concentrations of sum HO-PCBs (4350 pg/ml). In harbour porpoises, concentrations of sum PCBs (median: 24,300 pg/ml) were about 20 times higher than concentrations of PBDEs (median: 1300 pg/ml). HO-PCBs were detected in only 4 harbour porpoises and this at very low concentrations. Naturally-produced MeO-PBDEs were only found in harbour porpoises at concentrations ranging from 120 to 810 pg/ml. HO-PBDEs were not found in any species. In general, harbour seals accumulate less compounds and have mostly lower concentrations than harbour porpoises possibly as a result of a better developed metabolism. Article in Journal/Newspaper Phoca vitulina Phocoena phocoena The University of Queensland: UQ eSpace Environment International 35 6 842 850 |
institution |
Open Polar |
collection |
The University of Queensland: UQ eSpace |
op_collection_id |
ftunivqespace |
language |
English |
topic |
Harbour porpoises Harbour seals HO-PCBs MeO-PBDEs Metabolites North Sea PBDEs PCBs Serum 2300 Environmental Science |
spellingShingle |
Harbour porpoises Harbour seals HO-PCBs MeO-PBDEs Metabolites North Sea PBDEs PCBs Serum 2300 Environmental Science Weijs, Liesbeth Das, Krishna Siebert, Ursula van Elk, Niels Jauniaux, Thierry Neels, Hugo Blust, Ronny Covaci, Adrian Concentrations of chlorinated and brominated contaminants and their metabolites in serum of harbour seals and harbour porpoises |
topic_facet |
Harbour porpoises Harbour seals HO-PCBs MeO-PBDEs Metabolites North Sea PBDEs PCBs Serum 2300 Environmental Science |
description |
Harbour seals (Phoca vitulina) and harbour porpoises (Phocoena phocoena) are top predators in the North Sea and consequently accumulate a variety of pollutants in their tissues. Concentrations of polychlorinated biphenyls (PCBs), polybrominated diphenyl ethers (PBDEs) and their hydroxylated metabolites (HO-PCBs and HO-PBDEs) were measured in serum of wild harbour seals (n = 47) and captive harbour porpoises (n = 21). Both species exhibit long life spans and do not have extreme situations, such as complete fasting during periods of lactation, in their annual cycles. For PCBs, concentrations in adult males were slightly higher than in juveniles and lowest in juvenile females. For PBDEs, juveniles have higher levels than adult males and females, probably as a consequence of lactational transfer. However, differences between these age-gender groups were not statistical significant, indicating that individual variation was limited within each species, even without knowing the feeding status of the animals. Body condition, particularly emaciation, has a major influence on the levels of chlorinated and brominated contaminants in serum. Profiles of PCBs were CB 153 > CB 138 > CB 187 > CB 180 and CB 153 > CB 138 > CB 149 > CB 187 > CB 180 for harbour seals and porpoises respectively. For PBDEs, BDE 47 was the predominant congener followed by BDE 100 and 99 in both species. In harbour seals, concentrations of sum PCBs (median: 39,200 pg/ml) were more than 200 times higher than levels of sum PBDEs (median: 130 pg/ml) and almost 10 times higher than concentrations of sum HO-PCBs (4350 pg/ml). In harbour porpoises, concentrations of sum PCBs (median: 24,300 pg/ml) were about 20 times higher than concentrations of PBDEs (median: 1300 pg/ml). HO-PCBs were detected in only 4 harbour porpoises and this at very low concentrations. Naturally-produced MeO-PBDEs were only found in harbour porpoises at concentrations ranging from 120 to 810 pg/ml. HO-PBDEs were not found in any species. In general, harbour seals accumulate less compounds and have mostly lower concentrations than harbour porpoises possibly as a result of a better developed metabolism. |
format |
Article in Journal/Newspaper |
author |
Weijs, Liesbeth Das, Krishna Siebert, Ursula van Elk, Niels Jauniaux, Thierry Neels, Hugo Blust, Ronny Covaci, Adrian |
author_facet |
Weijs, Liesbeth Das, Krishna Siebert, Ursula van Elk, Niels Jauniaux, Thierry Neels, Hugo Blust, Ronny Covaci, Adrian |
author_sort |
Weijs, Liesbeth |
title |
Concentrations of chlorinated and brominated contaminants and their metabolites in serum of harbour seals and harbour porpoises |
title_short |
Concentrations of chlorinated and brominated contaminants and their metabolites in serum of harbour seals and harbour porpoises |
title_full |
Concentrations of chlorinated and brominated contaminants and their metabolites in serum of harbour seals and harbour porpoises |
title_fullStr |
Concentrations of chlorinated and brominated contaminants and their metabolites in serum of harbour seals and harbour porpoises |
title_full_unstemmed |
Concentrations of chlorinated and brominated contaminants and their metabolites in serum of harbour seals and harbour porpoises |
title_sort |
concentrations of chlorinated and brominated contaminants and their metabolites in serum of harbour seals and harbour porpoises |
publisher |
Pergamon Press |
publishDate |
2009 |
url |
https://espace.library.uq.edu.au/view/UQ:401824 |
genre |
Phoca vitulina Phocoena phocoena |
genre_facet |
Phoca vitulina Phocoena phocoena |
op_relation |
doi:10.1016/j.envint.2009.02.001 issn:0160-4120 issn:1873-6750 orcid:0000-0002-2399-1711 |
op_doi |
https://doi.org/10.1016/j.envint.2009.02.001 |
container_title |
Environment International |
container_volume |
35 |
container_issue |
6 |
container_start_page |
842 |
op_container_end_page |
850 |
_version_ |
1766167712444186624 |