Multiannual patterns of genetic structure and mating type ratios highlight the complex bloom dynamics of a marine planktonic diatom oleh Maria Valeria Ruggiero, Marina Buffoli, Klara K. E. Wolf, Domenico D’Alelio, Viviana Di Tuccio, Ernestina Lombardi, Francesco Manfellotto, Laura Vitale, Francesca Margiotta, Diana Sarno, Uwe John, Maria Immacolata Ferrante, Marina Montresor