DYNAMICS AND SPECIES COMPOSITION OF PHYTOPLANKTON IN SOUTHERN BAIKAL PELAGIC ZONE
The article is considered the seasonal dynamics and composition of phytoplankton in Southern Baikal pelagic zone in 1996-2000, 2005 and 2008. According to phytoplankton biomass highly productive years were 1997 and 2000, ordinary productive - 1998 and 1999, low productive - 1996, 2005 and 2008. The dynamics of phytoplankton biomass (except in 2005) was characterized by well-defined peak during spring homothermy caused by vegetation of diatoms. It is shown that the structural complexity of the pelagic phytoplankton of Lake Baikal is high, there is no plainly dominant group of species, successional cycles are diverse. The nature of seasonal succession of phytoplankton unchanged compare to previous years.