title: Dynamics of the Structure and Diversity of Fish Communities in Mountain Rivers of the Crimea Based on the Example of the Alma River
abstract: Spatial and temporal changes in the species composition and structure of the fish community in one of the typical small rivers of Crimea have been evaluated. It is noted that the economic activity and changes in the water regime, which are mainly due to anthropogenic factors, have led to a more than fivefold increase in the number of fish species, the succession of dominant complexes, a decrease in the species similarity with native communities, and an increase in species diversity indices; the 
journal: Russian Journal of Ecology