TY JOUR TI Productivity of Phaeodactylum Tricornutum culture in natural light conditions KW microalgae KW influx of solar radiation KW night biomass loss JO Russian Journal of Biological Physics and Chemisrty AU Chekushkin, A.A. AU Lelekov, A.S. PY 2021 IS 6 PB Federal State Educational Institution of Higher Education Sevastopol State University