“…calliantha is a geographically widespread species (Lundholm et al, 2003;Quijano-Scheggia et al, 2008;Churro et al, 2009), and according to recent investigations and to this study, is a permanent constituent of phytoplankton assemblages in Adriatic Sea (Caroppo et al, 2005;Burić et al, 2008). Blooming events in both the warmer and colder parts of the year indicate its tolerance to a wide range of temperatures (Caroppo et al, 2005;Quiroga, 2006;Burić et al, 2008;Quijano-Scheggia et al, 2008). P. calliantha has been found to produce DA in several areas around the world as well as in cultures (Martin et al, 1990;Lundholm et al, 1997;Lundholm et al, 2003;Besiktepe et al, 2008;Sahraoui et al, 2009).…”