@article{massaro_negreiros_rocha_2013,  title={A search for predators and food selectivity of two native species of <i>Hydra</i> (Cnidaria: Hydrozoa) from Brazil},  volume={13},  ISSN={1676-0603},  url={https://doi.org/10.1590/S1676-06032013000200003},  DOI={10.1590/S1676-06032013000200003},  number={2},  journal={Biota Neotropica},  publisher={Instituto Virtual da Biodiversidade | BIOTA - FAPESP},  author={Massaro, Fernanda Cristina and Negreiros, Natalia Felix and Rocha, Odete},  year={2013},  month={Apr},  pages={35–40} }