@article{santos_novaes_2008,  title={Population structure of two Astyanax Baird & Girard, 1854 (Teleostei, Characidae) species from upper Paraguaçu river},  volume={51},  ISSN={1516-8913},  url={https://doi.org/10.1590/S1516-89132008000100013},  DOI={10.1590/S1516-89132008000100013},  number={1},  journal={Brazilian Archives of Biology and Technology},  publisher={Instituto de Tecnologia do Paraná - Tecpar},  author={Santos, Alexandre Clistenes de Alcântara and Novaes, José Luís Costa},  year={2008},  month={Jan},  pages={105–112} }