Oliveira, C.Y.B. et al. 2019. Phytoplankton responses to an extreme drought season: A case study at two reservoirs from a semiarid region, Northeastern Brazil: Phytoplankton during extreme drought season. Journal of Limnology. 78, 2 (Feb. 2019). DOI:https://doi.org/10.4081/jlimnol.2019.1869.