Planktonic Heterotrophic Nanoflagellate Abundance Along a Trophic Gradient in Subtropical Reservoirs: Influence of a Bottom-up or Top-down Control Mechanism. Acta Sci. Biol. Sci. 2014, 36 (2), 155-163. https://doi.org/10.4025/actascibiolsci.v36i2.19084.