Diatoms as biomarker in changes of the Lake Zapovednoye state (Evenkia, Russia)

  • Bolobanshchikova G.N. 1
  • Rogozin D.Yu. 1, 2
  • 1 Federal Research Center “Krasnoyarsk science Center” Siberian Branch of the Russian Academy of Sciences (KSC SB RAS, FRC KSC SB RAS), “Institute of Biophysics Siberian Branch of the Russian Academy of Sciences” (IBP SB RAS) 50/50. Akademgorodok, Krasnoyarsk, 660036, Russia
    2 Siberian Federal University (SibFU) 79 Svobodny, Krasnoyarsk, 660041, Russia
Keywords: paleoclimate, paleoindicators, bioindicators, proxy, bottom sediments, diatoms.


As part of a multidisciplinary study aimed at paleoclimatic reconstruction in March 2015 and June 2018 cores of bottom sediments of Lake Zapovednoye (Evenkia, Russia) were obtained. Analysis of samples of bottom sediments by the diatoms composition - one of the main biomarkers or proxy of changes in a state of the lake, showed that, in addition to short-term changes, long-term changes in the species composition of diatoms at least twice occurred. It may be associated with changes in water inflow and level of Lake Zapovednoye. It is most likely these events could occur due to climate change.