Molecular and Analytical Laboratory Center,Department of Food Technology,Faculty of Veterinary,Universidade Federal Fluminense,Niterói,Brazil;
Chemistry Institute,Food Science Program,Universidade Federal do Rio de Janeiro,Rio de Janeiro,Brazil;
National Institute of Health Quality Control,Fundacaeo Oswaldo Cruz,Rio de Janeiro,Brazil;
Laboratory of Theoretical and Applied Ichthyology,Department of Ecology and Marine Resources,Universidade Federal do Estado do Rio de Janeiro,Rio de Janeiro,Brazil;
Mercury levels; Seafood; Methylmercury; Public health; Aquatic environment;