Accumulation of polychlorinated biphenyls from contaminated sediment by Atlantic cod ( Gadus morhua): Direct accumulation from resuspended sediment and dietary accumulation via the polychaete Nereis virens
Abstract Bioaccumulation of sediment‐associated polychlorinated biphenyls (PCBs) was examined in Atlantic cod ( Gadus morhua ) through direct diffusion from the sediment (via the water phase) and through the food chain (dietary exposure). To facilitate direct accumulation from the sediment, it was c...
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crwiley:10.1002/etc.1973 2024-06-02T08:03:10+00:00 Accumulation of polychlorinated biphenyls from contaminated sediment by Atlantic cod ( Gadus morhua): Direct accumulation from resuspended sediment and dietary accumulation via the polychaete Nereis virens Ruus, Anders Daae, Ingrid Aarre Hylland, Ketil 2012 http://dx.doi.org/10.1002/etc.1973 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fetc.1973 https://setac.onlinelibrary.wiley.com/doi/pdf/10.1002/etc.1973 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Environmental Toxicology and Chemistry volume 31, issue 11, page 2472-2481 ISSN 0730-7268 1552-8618 journal-article 2012 crwiley https://doi.org/10.1002/etc.1973 2024-05-03T11:33:36Z Abstract Bioaccumulation of sediment‐associated polychlorinated biphenyls (PCBs) was examined in Atlantic cod ( Gadus morhua ) through direct diffusion from the sediment (via the water phase) and through the food chain (dietary exposure). To facilitate direct accumulation from the sediment, it was continuously resuspended. To study the dietary bioaccumulation of PCBs, cod were fed benthic polychaetes ( Nereis virens ) previously exposed to test sediments, which were naturally polluted sediments from the inner Oslofjord (Norway). Both exposure experiments had a duration of 129 d. Furthermore, the role of sediments as a source of PCBs accumulated in Oslofjord cod was elucidated, using results from environmental monitoring as a reference. Generally, the results suggest that the contaminated sediments of the inner Oslofjord are an important source of legacy PCBs for accumulation in resident cod, although additional contributions may also be important. Crude estimates of assimilation efficiency of ingested PCBs (through diet) were found to be 30 to 50%; the highest was for the lower chlorinated congeners (PCB‐28 and ‐52). Challenges for applying trophic magnification factors for determining biomagnification in laboratory experiments, in terms of preventive environmental safety, are indicated. The results provide useful information for parameterization of models describing the behavior of hydrophobic persistent contaminants in the foodweb of the Oslofjord and elsewhere. Environ. Toxicol. Chem. 2012; 31: 2472–2481. © 2012 SETAC Article in Journal/Newspaper atlantic cod Gadus morhua Wiley Online Library Norway Environmental Toxicology and Chemistry 31 11 2472 2481 |
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Open Polar |
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Wiley Online Library |
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crwiley |
language |
English |
description |
Abstract Bioaccumulation of sediment‐associated polychlorinated biphenyls (PCBs) was examined in Atlantic cod ( Gadus morhua ) through direct diffusion from the sediment (via the water phase) and through the food chain (dietary exposure). To facilitate direct accumulation from the sediment, it was continuously resuspended. To study the dietary bioaccumulation of PCBs, cod were fed benthic polychaetes ( Nereis virens ) previously exposed to test sediments, which were naturally polluted sediments from the inner Oslofjord (Norway). Both exposure experiments had a duration of 129 d. Furthermore, the role of sediments as a source of PCBs accumulated in Oslofjord cod was elucidated, using results from environmental monitoring as a reference. Generally, the results suggest that the contaminated sediments of the inner Oslofjord are an important source of legacy PCBs for accumulation in resident cod, although additional contributions may also be important. Crude estimates of assimilation efficiency of ingested PCBs (through diet) were found to be 30 to 50%; the highest was for the lower chlorinated congeners (PCB‐28 and ‐52). Challenges for applying trophic magnification factors for determining biomagnification in laboratory experiments, in terms of preventive environmental safety, are indicated. The results provide useful information for parameterization of models describing the behavior of hydrophobic persistent contaminants in the foodweb of the Oslofjord and elsewhere. Environ. Toxicol. Chem. 2012; 31: 2472–2481. © 2012 SETAC |
format |
Article in Journal/Newspaper |
author |
Ruus, Anders Daae, Ingrid Aarre Hylland, Ketil |
spellingShingle |
Ruus, Anders Daae, Ingrid Aarre Hylland, Ketil Accumulation of polychlorinated biphenyls from contaminated sediment by Atlantic cod ( Gadus morhua): Direct accumulation from resuspended sediment and dietary accumulation via the polychaete Nereis virens |
author_facet |
Ruus, Anders Daae, Ingrid Aarre Hylland, Ketil |
author_sort |
Ruus, Anders |
title |
Accumulation of polychlorinated biphenyls from contaminated sediment by Atlantic cod ( Gadus morhua): Direct accumulation from resuspended sediment and dietary accumulation via the polychaete Nereis virens |
title_short |
Accumulation of polychlorinated biphenyls from contaminated sediment by Atlantic cod ( Gadus morhua): Direct accumulation from resuspended sediment and dietary accumulation via the polychaete Nereis virens |
title_full |
Accumulation of polychlorinated biphenyls from contaminated sediment by Atlantic cod ( Gadus morhua): Direct accumulation from resuspended sediment and dietary accumulation via the polychaete Nereis virens |
title_fullStr |
Accumulation of polychlorinated biphenyls from contaminated sediment by Atlantic cod ( Gadus morhua): Direct accumulation from resuspended sediment and dietary accumulation via the polychaete Nereis virens |
title_full_unstemmed |
Accumulation of polychlorinated biphenyls from contaminated sediment by Atlantic cod ( Gadus morhua): Direct accumulation from resuspended sediment and dietary accumulation via the polychaete Nereis virens |
title_sort |
accumulation of polychlorinated biphenyls from contaminated sediment by atlantic cod ( gadus morhua): direct accumulation from resuspended sediment and dietary accumulation via the polychaete nereis virens |
publisher |
Wiley |
publishDate |
2012 |
url |
http://dx.doi.org/10.1002/etc.1973 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fetc.1973 https://setac.onlinelibrary.wiley.com/doi/pdf/10.1002/etc.1973 |
geographic |
Norway |
geographic_facet |
Norway |
genre |
atlantic cod Gadus morhua |
genre_facet |
atlantic cod Gadus morhua |
op_source |
Environmental Toxicology and Chemistry volume 31, issue 11, page 2472-2481 ISSN 0730-7268 1552-8618 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1002/etc.1973 |
container_title |
Environmental Toxicology and Chemistry |
container_volume |
31 |
container_issue |
11 |
container_start_page |
2472 |
op_container_end_page |
2481 |
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1800747636331905024 |