title: Semiquantitative determination of total mercury in Pygocentrus nattereri Kner, 1858 and sediment at the plateau of Upper Paraguai River, Brazil.
abstract: In this study an environmental assessment of contamination by total mercury (THg) was carried out at the Plateau of the Upper Paraguai River. Total mercury was evaluated in sediment and muscle of the red piranha Pygocentrus nattereri Kner, 1858, a piscivorous species at the top of the food chain consumed for subsistence and commercially. THg concentrations were below national guidelines established by WHO for sediments (100 ng g-1) and fish (100-600 ng g-1) for most of the sampled sites. Two sites located downstream of artisanal diamond and gold mines had THg concentrations in fish equal or greater than 600 ng g-1.
authors.affiliation: Universidade do Estado do Mato Grosso, Laboratório de Ecotoxicologia, Centro de Estudos em Limnologia, Etnobiologia e Biodiversidade do Pantanal, CELBE, Cidade Universitária, Avenida Santos Dumont, SN, Bairro Santos Dumont, Cáceres, MT CEP: 78200-000, Brazil. Electronic address: klautenes@hotmail.com.
authors.forename: Clautenes Maria
authors.initials: CM
authors.lastname: de Almeida Ferreira
authors.affiliation: Coordenação de Processos Minerais, Centro de Tecnologia Mineral, CETEM/MCTI, Av. Pedro Calmon, 900, Cidade Universitária, CEP: 21.941-908, Rio de Janeiro, RJ, Brazil. Electronic address: segler@cetem.gov.br.
authors.forename: Silvia Gonçalves
authors.initials: SG
authors.lastname: Egler
authors.affiliation: Coordenação de Processos Minerais, Centro de Tecnologia Mineral, CETEM/MCTI, Av. Pedro Calmon, 900, Cidade Universitária, CEP: 21.941-908, Rio de Janeiro, RJ, Brazil. Electronic address: ayallouz@cetem.gov.br.
authors.forename: Allegra Viviane
authors.initials: AV
authors.lastname: Yallouz
authors.affiliation: Universidade do Estado do Mato Grosso, Laboratório de Ecotoxicologia, Centro de Estudos em Limnologia, Etnobiologia e Biodiversidade do Pantanal, CELBE, Cidade Universitária, Avenida Santos Dumont, SN, Bairro Santos Dumont, Cáceres, MT CEP: 78200-000, Brazil. Electronic address: aurea@unemat.br.
authors.forename: Áurea Regina Alves
authors.initials: ÁRA
authors.lastname: Ignácio
mesh_terms: D000818:Animals; D001938:Brazil; D060125:Characiformes; D018130:Diamond; D004784:Environmental Monitoring; D019015:Geologic Sediments / Q000032:analysis; D006046:Gold; D008628:Mercury / Q000032:analysis*; D008906:Mining; D009132:Muscles / Q000737:chemistry; D045483:Rivers; D014874:Water Pollutants, Chemical / Q000032:analysis*
chemical_list: D014874:Water Pollutants, Chemical; D006046:Gold; D018130:Diamond; D008628:Mercury
keywords: Paraguai River; Pygocentrus nattereri; Sediment; Semiquantitative method; Total mercury