Persistent organic pollutants and stable isotopes in pinnipeds from King George Island, Antarctica

International audience In the present work, fat, skin, liver and muscle samples from Leptonychotes weddellii (Weddell seal, n=2 individuals), Lobodon carcinophagus (crabeater seal, n=2), Arctocephalus gazella (Antarctic fur seal, n=3) and Mirounga leonina (southern elephant seal, n=1) were collected...

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Bibliographic Details
Published in:Chemosphere
Main Authors: Cipro, Caio V. Z., Bustamante, Paco, Taniguchi, Satie, Montone, Rosalinda Carmela
Other Authors: LIttoral ENvironnement et Sociétés (LIENSs), La Rochelle Université (ULR)-Centre National de la Recherche Scientifique (CNRS), Instituto Oceanográfico, Universidade de São Paulo = University of São Paulo (USP)
Format: Article in Journal/Newspaper
Language:English
Published: HAL CCSD 2011
Subjects:
Antarctica
Seal
Stable isotopes
Organochlorine
PBDEs
POPs
[SDV.TOX.ECO]Life Sciences [q-bio]/Toxicology/Ecotoxicology
Antarctic
King George Island
Weddell
Antarc*
Antarctic Fur Seal
Arctocephalus gazella
Crabeater Seal
Elephant Seal
Lobodon carcinophagus
Mirounga leonina
Southern Elephant Seal
Weddell Seal
Online Access:https://hal.science/hal-00819442
https://hal.science/hal-00819442/document
https://hal.science/hal-00819442/file/Cipro_et_al._2012_MPB.pdf
https://doi.org/10.1016/j.chemosphere.2011.07.047
Description
Summary:International audience In the present work, fat, skin, liver and muscle samples from Leptonychotes weddellii (Weddell seal, n=2 individuals), Lobodon carcinophagus (crabeater seal, n=2), Arctocephalus gazella (Antarctic fur seal, n=3) and Mirounga leonina (southern elephant seal, n=1) were collected from King George Island, Antarctica, and analysed for POPs (PCBs, organochlorine pesticides and PBDEs) and stable isotopes (δ13C and δ15N in all tissues but fat). PBDEs could be found in only one sample (L. weddellii fat). Generally, PCBs (from 74 to 523 ng g-1 lw), DDTs (from 14 to 168 ng g-1 lw) and chlordanes (from 9 to 78 ng g-1 lw) were the prevailing compounds. Results showed a clear stratification in accordance with ecological data. Nonetheless, stable isotope analyses provide a deeper insight into fluctuations due to migrations and nutritional stress. Correlation between 15N and pollutants suggests, to some degree, a considerable ability to metabolize and/or excrete the majority of them.

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