DISTRIBUTION OF SUSPENDED MATTER AND ITS ORGANIC CARBON IN THE TREKHTSVETNOYE LAKE: (the Kandalaksha Bay, Coast of the Rugozerskaya Gulf). Proc. YSU C: Geol. Geogr. Sci. 2026, No. Special Issue N1 (270), 57. https://doi.org/10.46991/PYSUC.2026.SI1.057.