Persistent organic pollutants and stable isotopes in pinnipeds from King George Island, Antarctica.
Mar Pollut Bull
; 64(12): 2650-5, 2012 Dec.
Article
em En
| MEDLINE
| ID: mdl-23154138
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⻹ lw), DDTs (from 14 to 168 ng g⻹ lw) and chlordanes (from 9 to 78 ng g⻹ 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 δ(15)N and pollutants suggests, to some degree, a considerable ability to metabolize and/or excrete the majority of them.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Caniformia
/
Poluentes Químicos da Água
/
Monitoramento Ambiental
Limite:
Animals
Idioma:
En
Revista:
Mar Pollut Bull
Ano de publicação:
2012
Tipo de documento:
Article
País de afiliação:
Brasil
País de publicação:
Reino Unido