Bacterioplankton of the Kola Bay, Barents Sea, (Micro- and Nanoforms) Based on 2002-2003 Monitoring Data

摘要

Hydrochemical and microbiological investigation in the Kola Bay in 2002-2003 demonstrated that the distribution of bacteria is notably influenced by biogeochemical barriers formed by mixing fresh and sea water. Seasonal changes in the appearance of filterable bacteria, considerable quantities of gram-positive bacteria with thick cell walls, dwarf bacteria, spheroplasts, elementary bodies, and cells with abnormal cell walls during the polar night have been revealed. Cultured bacterial colonies were represented by polymorphic cells. The data obtained refine our knowledge about organotrophic activity of bacterioplankton during the polar night.