Probabilistic assessment of the trophic status of lake Bienda-Stemme (Western Spitsbergen)

Among the modern problems of aquatic ecology, the central place is occupied by the problem of eutrophication. The developed classifications of the trophic status of water bodies are focused on different indicators and their complexes. The relevance of the study is due to the fact that the trophic status of the lake Bienda-Stemme was not previously studied, which did not allow to correctly determine the suitability of the lake water for drinking and household purposes for the inhabitants of the village of Barentsburg. The purpose of this work is to assess the probability of the trophic status of Lake Bienda-Stemme (Western Svalbard). To assess the trophic status of the lake, mathematical and statistical models were used, in which the average annual concentrations of total phosphorus were used as the main descriptor. For the first time, the trophic status of the lake was calculated for the period 2002-2022. It has been established that, in general, the trophic status of the lake is characterized as oligotrophic-mesotrophic.