Scientists from the All-Russian Research Institute of Fisheries and Oceanography have recommended closing the industrial fishing of blue bream in the Novgorod region's rivers until 2023 in order to protect aquatic resources. This ban is similar to the ban on roach fishing in the Astrakhan region, which was implemented in May and will also last until the end of 2023. Blue bream is a species of freshwater fish belonging to the carp family.