Stelmakh Lyudmyla Vasilievna, Leading Researcher, Head of the Department of Ecological Physiology of Algae, IBSS, and Doctor of Biological Sciences since 2018. Author of about 150 scientific papers. Main works in the last two years: Stelmakh L. V. Features of the Structural and Functional Characteristics of the Diatom Alga Pseudosolenia calcar-avis // Inland Water Biology. 2022. Vol. 15, no. 3. P. 315-323. Yunev O., Carstensen J., Stelmakh L., Belokopytov V., Suslin V. Temporal changes of phytoplankton biomass in the western Black Sea shelf waters: Evaluation by satellite data (1998–2018) // Estuarine, Coastal and Shelf Science. 2022. Vol. 271. Article no. 107865 (11 p.) Stelmakh L., Kovrigina N. Phytoplankton Growth Rate and Microzooplankton Grazing under Conditions of Climatic Changes and Anthropogenic Pollution in the Coastal Waters of the Black Sea (Sevastopol Region) // Water. 2021. Vol. 13, iss. 22. Article no. 3230 (13 p.). Yunev O. A., Carstensen J., Stelmakh L. V., Belokopytov V. N., Suslin V. V. Reconsideration of the phytoplankton seasonality in the open Black Sea // Limnology and Oceanography Letters. 2021. Vol. 6, iss. 1. P. 51-59. Participated in a number of international and Russian grants as a performer and leader. Main interests: primary production, phytoplankton, its structural and functional characteristics under different physical and chemical conditions, and the influence of abiotic and biotic factors on microalgae, including viruses.