title: Total Mercury in Carnivorous Fish from Brazilian Southeast.
abstract: Total mercury concentrations were determined by atomic absorption spectrometry in muscle tissue of two commercially important species of carnivorous fishes croaker (Micropogonias furnieri) and cutlassfish (Trichiurus lepturus) caught in Itaipu estuary, Rio de Janeiro. In this study, whitemouth croaker presented more mercury than Atlantic cutlassfish. Bioaccumulation differences can be explained by the biological behavior of juveniles whitemouth croaker, that remain in the estuary up to maturity, which makes them good indicators of local environmental impacts (0.110 mg Kg(-1) HgT). It also can be explained by differences in nutritional requirements between the different life stages of two species. The analysis showed the presence of low levels of the metal. However, our results suggest a possible risk to human health, depending on the level of fish consumption.
authors: Laboratory of Fish Inspection and Technology, Fluminense Federal University, Rua Vital Brazil Filho 64, Santa Rosa, Niterói, RJ, 24.230-340, Brazil, micheliferreira@id.uff.br.
authors: M S
authors: MS
authors: Ferreira
authors: A N
authors: AN
authors: Marques
authors: R O R
authors: RO
authors: Ribeiro
authors: C A
authors: CA
authors: Conte
authors: C S
authors: CS
authors: Carneiro
authors: R E
authors: RE
authors: Santelli
authors: A S
authors: AS
authors: Freire
authors: S C
authors: SC
authors: São Clemente
authors: E T
authors: ET
authors: Mársico
mesh_terms: D000818:Animals; D001522:Behavior, Animal / Q000187:drug effects; D001938:Brazil; D004784:Environmental Monitoring / Q000379:methods*; D005399:Fishes / Q000254:growth & development / Q000378:metabolism*; D020387:Food Chain; D006801:Humans; D008628:Mercury / Q000032:analysis* / Q000493:pharmacokinetics; D009132:Muscles / Q000737:chemistry*; D010473:Perciformes / Q000378:metabolism; D014874:Water Pollutants, Chemical / Q000032:analysis* / Q000493:pharmacokinetics
chemical_list: D014874:Water Pollutants, Chemical; D008628:Mercury