title: Bioaccumulation of potentially toxic trace elements in benthic organisms of Admiralty Bay (King George Island, Antarctica).
abstract: 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 δ(15)N 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.
authors.affiliation: Instituto Oceanográfico, Universidade de São Paulo (IO-USP), Pça. do Oceanográfico 191, Butantã, SP 05508 900, Brazil; Faculdade Estácio de Cotia e Faculdade Estácio Euro-Panamericana de Humanidades e Tecnologias, Cotia, SP 06711-280, Brazil.
authors.forename: Alessandra Pereira
authors.initials: AP
authors.lastname: Majer
authors.affiliation: Instituto Oceanográfico, Universidade de São Paulo (IO-USP), Pça. do Oceanográfico 191, Butantã, SP 05508 900, Brazil.
authors.forename: Mônica Angélica Varella
authors.initials: MA
authors.lastname: Petti
authors.affiliation: Instituto Oceanográfico, Universidade de São Paulo (IO-USP), Pça. do Oceanográfico 191, Butantã, SP 05508 900, Brazil.
authors.forename: Thais Navajas
authors.initials: TN
authors.lastname: Corbisier
authors.affiliation: Instituto Oceanográfico, Universidade de São Paulo (IO-USP), Pça. do Oceanográfico 191, Butantã, SP 05508 900, Brazil; Mestrado De Gestão Ambiental E Sustentabilidade, Universidade Nove De Julho (UNINOVE) São Paulo, SP 05001 100, Brazil. Electronic address: andrezpr@usp.br.
authors.forename: Andreza Portella
authors.initials: AP
authors.lastname: Ribeiro
authors.affiliation: Instituto Oceanográfico, Universidade de São Paulo (IO-USP), Pça. do Oceanográfico 191, Butantã, SP 05508 900, Brazil.
authors.forename: Carolina Yume Sawamura
authors.initials: CY
authors.lastname: Theophilo
authors.affiliation: Instituto Oceanográfico, Universidade de São Paulo (IO-USP), Pça. do Oceanográfico 191, Butantã, SP 05508 900, Brazil.
authors.forename: Paulo Alves de Lima
authors.initials: PA
authors.lastname: Ferreira
authors.affiliation: Instituto Oceanográfico, Universidade de São Paulo (IO-USP), Pça. do Oceanográfico 191, Butantã, SP 05508 900, Brazil.
authors.forename: Rubens Cesar Lopes
authors.initials: RC
authors.lastname: Figueira
mesh_terms: D000818:Animals; D000864:Antarctic Regions; D059001:Aquatic Organisms / Q000378:metabolism*; D061006:Bays; D004784:Environmental Monitoring; D020387:Food Chain; D007448:Invertebrates / Q000378:metabolism*; D008670:Metals / Q000378:metabolism; D014131:Trace Elements / Q000378:metabolism*; D014874:Water Pollutants, Chemical / Q000378:metabolism*
chemical_list: D008670:Metals; D014131:Trace Elements; D014874:Water Pollutants, Chemical
keywords: Admiralty Bay; Antarctica; Bioaccumulation; Biomagnification; Trace elements