Spatial heterogeneity and seasonal succession of phytoplankton functional groups along the vertical gradient in a mesotrophic reservoirTuğba Ongun Sevindik, Kemal Çelik and Luigi Naselli-FloresAnn. Limnol. - Int. J. Lim., 53 (2017) 129-141DOI: https://doi.org/10.1051/limn/2016040