@article{severi_rantin_fernandes_2000,  title={Structural and morphological features of Piaractus mesopotamicus (Holmberg, 1887) gills},  volume={60},  ISSN={0034-7108},  url={https://doi.org/10.1590/S0034-71082000000300014},  DOI={10.1590/S0034-71082000000300014},  number={3},  journal={Revista Brasileira de Biologia},  publisher={Instituto Internacional de Ecologia},  author={SEVERI, W. and RANTIN, F. T. and FERNANDES, M. N.},  year={2000},  month={Aug},  pages={493–501} }