Saint Petersburg

SafronovaI.N.Komarov Botanical Institute, Russian Academy of Sciences, 2 Professor Popov Str., Saint Petersburg 197376, Russiairasafronova@yandex.ru

BazhoraA.I.Institute of Limnology, Russian Academy of Sciences, 9 Sevastyanov Str., Saint Petersburg 196105, Russiabazhora_spb@mail.ru

BelyakovV.P.Institute of Limnology, Russian Academy of Sciences, 9 Sevastyanov Str., Saint Petersburg 196105, Russiavictor_beliakov@mail.ru