RESUMO

Hg was analyzed in seven tissues of 52 common shoveler Anas clypeata collected from the coast of SE Gulf of California. Mean Hg concentrations were highest in the liver (2,885 ng g⁻¹) and lowest in the gizzard (621 ng g⁻¹); they followed the order: liver, feathers > muscle tissue and tissues of the circulatory system > digestive organs. Hg levels were similar or higher than birds of the same trophic level and feeding habits. Considering the relationships of Hg among tissues and blood we recommend the use of blood as an efficient method to monitor Hg.

Assuntos

Patos/metabolismo , Exposição Ambiental , Monitoramento Ambiental/métodos , Mercúrio/sangue , Poluentes Químicos da Água/sangue , Animais , Cadeia Alimentar , Mercúrio/metabolismo , México , Espectrofotometria Atômica , Distribuição Tecidual , Poluentes Químicos da Água/metabolismo