Occurrence of organochlorine compounds in Euphausia superba and unhatched eggs of Pygoscelis genus penguins from Admiralty Bay (King George Island, Antarctica) and estimation of biomagnification factors

Chemosphere
Caio V Z CiproR C Montone

Abstract

Polychlorinated biphenyls (PCBs) and organochlorine pesticides are compounds that do not occur naturally in the environment and are not easily degraded by chemical or microbiological action. In the present work, those compounds were analysed in unhatched penguin eggs and whole krill collected in Admiralty Bay, King George Island, Antarctica in the austral summers of 2004-2005 and 2005-2006. The compounds found in higher levels (in a wet weight basis) were, in most of the egg samples, the PCBs (2.53-78.7 ng g(-1)), DDTs (2.07-38.0 ng g(-1)) and HCB (4.99-39.1 ng g(-1)) and after Kruskal-Wallis ANOVA, the occurrence seemed to be species-specific for the Pygoscelis genus. In all of the cases, the levels found were not higher than the ones in Arctic birds in a similar trophic level. The krill samples analysis allowed estimating the biomagnification factors (which resulted in up to 363 for HCB, one order of magnitude higher than DDTs and chlordanes and two orders of magnitude higher than the other groups) of the compounds found in eggs, whose only source of contamination is the female-offspring transfer.

References

Feb 20, 2004·Marine Pollution Bulletin·Helmut GoerkeJoachim Plötz
Apr 20, 2004·Environmental Pollution·K C Jones, P de Voogt
Jun 1, 2005·Ecotoxicology and Environmental Safety·J LiW L Lin
Aug 8, 2006·Environmental Pollution·K BorgåG W Gabrielsen
Sep 1, 1991·Oecologia·Keith A Hobson, William A Montevecchi

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Citations

Sep 1, 2014·The Science of the Total Environment·Nerina B LanaJorgelina C Altamirano
Oct 4, 2011·The Science of the Total Environment·Anita H PoulsenSusan M Bengtson Nash
Jul 28, 2016·The Science of the Total Environment·Ignacio RudolphRicardo Barra
Jul 13, 2016·Environmental Pollution·John Kennedy MwangiGuo-Ping Chang-Chien
Aug 25, 2021·Chemosphere·Patricia MoralesBegoña Jiménez

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