4.7 Article

Bioaccumulation of potentially toxic trace elements in benthic organisms of Admiralty Bay (King George Island, Antarctica)

期刊

MARINE POLLUTION BULLETIN
卷 79, 期 1-2, 页码 321-325

出版社

PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.marpolbul.2013.12.015

关键词

Bioaccumulation; Biomagnification; Trace elements; Admiralty Bay; Antarctica

资金

  1. CNPq
  2. Network 2 Project (CNPq) [550354/2002-6]
  3. Instituto Nacional de Ciencia e Tecnologia Antartico de Pesquisas Ambientais (CNPq) [574018/2008-5]
  4. Instituto Nacional de Ciencia e Tecnologia Antartico de Pesquisas Ambientais (FAPERJ) [E-26/170.023/2008]
  5. Ministerio do Meio Ambiente (MMA)
  6. Ministerio de Ciencia e Tecnologia (MCT)
  7. Comissao Interministerial para Recursos do Mar (CIRM)

向作者/读者索取更多资源

Data about the concentration, accumulation and transfer of potentially toxic elements in Antarctic marine food webs are essential for understanding the impacts of these elements, and for monitoring the pollution contribution of scientific stations, mainly in Admiralty Bay due to the 2012 fire in the Brazilian scientific station. Accordingly, the concentration of As, Cd, Cu, Ni, Pb and Zn was measured in eight benthic species collected in the 2005/2006 austral summer and the relationship between concentration and trophic position (indicated by delta N-15 values) was tested. A wide variation in metal content was observed depending on the species and the element. In the studied trophic positions, it was observed bioaccumulation for As, Cd and Pb, which are toxic elements with no biological function. In addition, Cd showed a positive relationship between concentration and trophic level suggesting the possible biomagnification of this element. (C) 2013 Elsevier Ltd. All rights reserved.

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