Under Ice Bloom of Phytoplankton in Southern Baikal in 2013
Keywords:
Lake Baikal, Phytoplankton, Under-ice bloomAbstract
The results of observation of under-ice phytoplankton at Baikal Point #1 in February-April of 2013 are discussed. The under-ice bloom (decrease of transparency from 24 m to 10.5 m) took place. There were 35 forms of phytoplankton belonging to 7 orders: Bacillariophyta, Chlorophyta, Chrysophyta, Dinophyta, Cryptophyta, Ochrophyta, Cyanophyta. All endemic for Baikal species of diatoms, dinophytes and cyanophyta Synechocystis limnetica were present. Despite high diversity, number of diatoms was low, while Synechocystis limnetica, Koliella longiseta, Rhodomonas pusilla demonstrated really mass development as well as Gymnodinium baicalense. 2013 can be counted as “gymnodinium year”, not “melosira year”.
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