Ecological monitoring of aquatic and terrestrial ecosystems based on the distribution of model groups of living organismsSergey Kozminov, Elena Krapivina, Anzor Paritov, Svetlana Khadzegova and Zuleikha LukyaevaE3S Web of Conf., 524 (2024) 02011DOI: https://doi.org/10.1051/e3sconf/202452402011