@article{carvalho_cavalcante_castro_rojas_2000,  title={Preliminary assessment of heavy metal levels in Mytella falcata (Bivalvia, Mytilidae) from Bacanga River estuary, São Luis, State of Maranhão, Northeastern Brazil},  volume={60},  ISSN={0034-7108},  url={https://doi.org/10.1590/S0034-71082000000100003},  DOI={10.1590/S0034-71082000000100003},  number={1},  journal={Revista Brasileira de Biologia},  publisher={Instituto Internacional de Ecologia},  author={CARVALHO, G. P. de and CAVALCANTE, P. R. S. and CASTRO, A. C. L. de and ROJAS, M. O. A. I.},  year={2000},  month={Feb},  pages={11–16} }