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
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...
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ftnorskinstvf:oai:niva.brage.unit.no:11250/2570419 2023-05-15T15:27:16+02:00 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 application/pdf http://hdl.handle.net/11250/2570419 https://doi.org/10.1002/etc.1973 eng eng Wiley Andre: Fagrådet, vann- og avløpsteknisk samarbeid i Indre Oslofjord Environmental Toxicology and Chemistry. 2012, 31 (11), 2472-2481. urn:issn:0730-7268 http://hdl.handle.net/11250/2570419 https://doi.org/10.1002/etc.1973 cristin:1169066 2472-2481 31 Environmental Toxicology and Chemistry 11 Journal article Peer reviewed 2012 ftnorskinstvf https://doi.org/10.1002/etc.1973 2023-02-21T08:45:24Z 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. acceptedVersion Article in Journal/Newspaper atlantic cod Gadus morhua Norwegian Institute for Water research: NIVA Open Access Archive (Brage) Norway Environmental Toxicology and Chemistry 31 11 2472 2481 |
institution |
Open Polar |
collection |
Norwegian Institute for Water research: NIVA Open Access Archive (Brage) |
op_collection_id |
ftnorskinstvf |
language |
English |
description |
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. acceptedVersion |
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://hdl.handle.net/11250/2570419 https://doi.org/10.1002/etc.1973 |
geographic |
Norway |
geographic_facet |
Norway |
genre |
atlantic cod Gadus morhua |
genre_facet |
atlantic cod Gadus morhua |
op_source |
2472-2481 31 Environmental Toxicology and Chemistry 11 |
op_relation |
Andre: Fagrådet, vann- og avløpsteknisk samarbeid i Indre Oslofjord Environmental Toxicology and Chemistry. 2012, 31 (11), 2472-2481. urn:issn:0730-7268 http://hdl.handle.net/11250/2570419 https://doi.org/10.1002/etc.1973 cristin:1169066 |
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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1766357715207061504 |