In this regard it will be necessary to consider measures to mitigate the adverse effects of phytoplankton increments, particularly those related to water purification, for example, by adjusting the time scale of the monitoring programs on the coast especially during the most favorable development times for cyanobacteria. Considering with special emphasis the neutral and La Nina periods (dry periods), which may enhance the further development of M. aeruginosa (Giannuzzi et al., 2012; Sathicq et al., 2014) during such periods to prevent the presence of cyanotoxins in the drinking water.