title: Using diversity indices to assess the dynamics of commercial fish populations in Lake Ladoga
abstract: The article discusses the topical issue of assessing the dynamics of biological diversity through the case study of commercial fish populations of Lake Ladoga. Changes in the structure of fish community in the lake were traced using fishery statistics for the period 1946–2023. For the mathematical and statistical analysis, the primary dataset on industrial fish catches was divided into five-year periods, excluding the period 2016–2023 period. Despite the selectivity of harvesting, the structure 
journal: Proceedings of the Karelian Research Centre of the Russian Academy of Sciences