(Table 1) Concentrations of the main organochlorine pesticides in liver and plasma samples of ringed seals (Phoca hispida)

The present study investigates the concentrations and patterns of organochlorine pesticides (OCPs) and their metabolites in liver and plasma of two ringed seal populations (Phoca hispida): lower contaminated Svalbard population and more contaminated Baltic Sea population. Among OCPs, p,p'-DDE a...

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Bibliographic Details
Main Authors: Routti, Heli, van Bavel, Bert, Letcher, Robert J, Arukwe, Augustine, Chu, Shaogang, Gabrielsen, Geir W
Format: Dataset
Language:English
Published: PANGAEA 2009
Subjects:
3-methylsulfonyl p,p-dichlorodiphenyl dichloroethylene
4-hydroxy-heptachlorostyrene
Area/locality
Baltic Sea
BalticSea_Bothnia
Biological sample
BIOS
Chlordane
Event label
Hexachlorobenzene
International Polar Year (2007-2008)
IPY
Lipids
MULT
Multiple investigations
Organochlorine pesticides
para,para-Dichlorodiphenyldichloroethylene
Sample amount
subset
Sample type
Sampling date
Species
common name
Svalbard
Toxaphene
total
International Polar Year
Phoca hispida
ringed seal
Online Access:https://doi.pangaea.de/10.1594/PANGAEA.819455
https://doi.org/10.1594/PANGAEA.819455
Description
Summary:The present study investigates the concentrations and patterns of organochlorine pesticides (OCPs) and their metabolites in liver and plasma of two ringed seal populations (Phoca hispida): lower contaminated Svalbard population and more contaminated Baltic Sea population. Among OCPs, p,p'-DDE and sum-chlordanes were the highest in concentration. With increasing hepatic contaminant concentrations and activities of xenobiotic-metabolizing enzymes, the concentrations of 3-methylsulfonyl-p,p'-DDE and the concentration ratios of pentachlorophenol/hexachlorobenzene increased, and the toxaphene pattern shifted more towards persistent Parlar-26 and -50 and less towards more biodegradable Parlar-44. Relative concentrations of the chlordane metabolites, oxychlordane and -heptachlorepoxide, to sum-chlordanes were higher in the seals from Svalbard compared to the seals from the Baltic, while the trend was opposite for cis- and trans-nonachlor. The observed differences in the OCP patterns in the seals from the two populations are probably related to the catalytic activity of xenobiotic-metabolizing enzymes, and also to differences in dietary exposure.

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