TY JOUR TI JUSTIFICATION OF DIRECTIONS FOR IMPROVING THE ECONOMIC EFFICIENCY OF FRESHWATER AQUACULTURE DEVELOPMENT KW aquaculture KW competitiveness KW innovative development KW fish planting material KW economic efficiency KW legal regulation JO Russian Journal of Management AU Truba, A.S. AU Truba, M.A. AU Akimov, E.B. PY 2026 IS 14 PB Publishing Center RIOR