Evaluation of polychlorinated biphenyl bioaccumulation patterns in white sea urchins ( Lytechinus pictus ) using multiple approaches
Abstract The bioaccumulation of polychlorinated biphenyls (PCBs) from three amended field‐contaminated sediments (with total PCB concentrations of ∼4, 10, and 100 μg/g dry wt) by white sea urchins (Lytechinus pictus) was evaluated using multiple statistical and theoretical approaches. Similarity ana...
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crwiley:10.1897/02-501a 2023-12-03T10:31:38+01:00 Evaluation of polychlorinated biphenyl bioaccumulation patterns in white sea urchins ( Lytechinus pictus ) using multiple approaches Noblet, James A. Zeng, Eddy Y. Ritter, Kerry J. 2003 http://dx.doi.org/10.1897/02-501a https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1897%2F02-501a https://setac.onlinelibrary.wiley.com/doi/pdf/10.1897/02-501a en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Environmental Toxicology and Chemistry volume 22, issue 11, page 2719-2726 ISSN 0730-7268 1552-8618 Health, Toxicology and Mutagenesis Environmental Chemistry journal-article 2003 crwiley https://doi.org/10.1897/02-501a 2023-11-09T13:14:57Z Abstract The bioaccumulation of polychlorinated biphenyls (PCBs) from three amended field‐contaminated sediments (with total PCB concentrations of ∼4, 10, and 100 μg/g dry wt) by white sea urchins (Lytechinus pictus) was evaluated using multiple statistical and theoretical approaches. Similarity analysis of the PCB bioaccumulation patterns, based on the concept of ecological communities, showed that the PCB patterns in the sea urchins and source sediments were essentially identical for all three sediment concentrations. However, affinity analysis did show some preference for bioaccumulation of higher‐molecular‐weight and more hydrophobic congeners by the urchins. The affinity analysis also showed that within a homologous series, bioaccumulation increased with increasing hydrophobicity. The biota‐sediment accumulation factor (BSAF) profiles for the two lower concentration sediments (A and B) were found to be statistically different from the high concentration sample (sediment C) by a multivariate analysis of variance (MANOVA). The relationship between the measured apparent organic carbon‐normalized partition coefficients ( K OC ) and octanol‐water partition coefficient ( K ow ) (log based) suggested a significant departure from thermodynamic equilibrium. A nonequilibrium, steady‐state bioaccumulation model was found to correctly predict the observed experimental bioaccumulation patterns. To improve the model performance, a hydrophobic term was introduced to account for the drop‐off in BSAF profiles with log K ow ≥ 6.5. This study showed that nonequilibrium, steady‐state models are far superior to equilibrium partitioning‐based models for understanding the bioaccumulation of organic chemicals by sea urchins. Article in Journal/Newspaper White Sea Wiley Online Library (via Crossref) White Sea Environmental Toxicology and Chemistry 22 11 2719 |
institution |
Open Polar |
collection |
Wiley Online Library (via Crossref) |
op_collection_id |
crwiley |
language |
English |
topic |
Health, Toxicology and Mutagenesis Environmental Chemistry |
spellingShingle |
Health, Toxicology and Mutagenesis Environmental Chemistry Noblet, James A. Zeng, Eddy Y. Ritter, Kerry J. Evaluation of polychlorinated biphenyl bioaccumulation patterns in white sea urchins ( Lytechinus pictus ) using multiple approaches |
topic_facet |
Health, Toxicology and Mutagenesis Environmental Chemistry |
description |
Abstract The bioaccumulation of polychlorinated biphenyls (PCBs) from three amended field‐contaminated sediments (with total PCB concentrations of ∼4, 10, and 100 μg/g dry wt) by white sea urchins (Lytechinus pictus) was evaluated using multiple statistical and theoretical approaches. Similarity analysis of the PCB bioaccumulation patterns, based on the concept of ecological communities, showed that the PCB patterns in the sea urchins and source sediments were essentially identical for all three sediment concentrations. However, affinity analysis did show some preference for bioaccumulation of higher‐molecular‐weight and more hydrophobic congeners by the urchins. The affinity analysis also showed that within a homologous series, bioaccumulation increased with increasing hydrophobicity. The biota‐sediment accumulation factor (BSAF) profiles for the two lower concentration sediments (A and B) were found to be statistically different from the high concentration sample (sediment C) by a multivariate analysis of variance (MANOVA). The relationship between the measured apparent organic carbon‐normalized partition coefficients ( K OC ) and octanol‐water partition coefficient ( K ow ) (log based) suggested a significant departure from thermodynamic equilibrium. A nonequilibrium, steady‐state bioaccumulation model was found to correctly predict the observed experimental bioaccumulation patterns. To improve the model performance, a hydrophobic term was introduced to account for the drop‐off in BSAF profiles with log K ow ≥ 6.5. This study showed that nonequilibrium, steady‐state models are far superior to equilibrium partitioning‐based models for understanding the bioaccumulation of organic chemicals by sea urchins. |
format |
Article in Journal/Newspaper |
author |
Noblet, James A. Zeng, Eddy Y. Ritter, Kerry J. |
author_facet |
Noblet, James A. Zeng, Eddy Y. Ritter, Kerry J. |
author_sort |
Noblet, James A. |
title |
Evaluation of polychlorinated biphenyl bioaccumulation patterns in white sea urchins ( Lytechinus pictus ) using multiple approaches |
title_short |
Evaluation of polychlorinated biphenyl bioaccumulation patterns in white sea urchins ( Lytechinus pictus ) using multiple approaches |
title_full |
Evaluation of polychlorinated biphenyl bioaccumulation patterns in white sea urchins ( Lytechinus pictus ) using multiple approaches |
title_fullStr |
Evaluation of polychlorinated biphenyl bioaccumulation patterns in white sea urchins ( Lytechinus pictus ) using multiple approaches |
title_full_unstemmed |
Evaluation of polychlorinated biphenyl bioaccumulation patterns in white sea urchins ( Lytechinus pictus ) using multiple approaches |
title_sort |
evaluation of polychlorinated biphenyl bioaccumulation patterns in white sea urchins ( lytechinus pictus ) using multiple approaches |
publisher |
Wiley |
publishDate |
2003 |
url |
http://dx.doi.org/10.1897/02-501a https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1897%2F02-501a https://setac.onlinelibrary.wiley.com/doi/pdf/10.1897/02-501a |
geographic |
White Sea |
geographic_facet |
White Sea |
genre |
White Sea |
genre_facet |
White Sea |
op_source |
Environmental Toxicology and Chemistry volume 22, issue 11, page 2719-2726 ISSN 0730-7268 1552-8618 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1897/02-501a |
container_title |
Environmental Toxicology and Chemistry |
container_volume |
22 |
container_issue |
11 |
container_start_page |
2719 |
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1784258046606704640 |