TY JOUR TI THEORETICAL AND METHODOLOGICAL FOUNDATIONS OF THE COMPETITIVENESS OF THE FISHING INDUSTRY AND THE PRACTICE OF THEIR APPLICATION KW competitiveness KW fishing industry KW aquaculture KW sustainable development KW digitalization KW international trade KW environmental certification JO MOSCOW ECONOMIC JOURNAL AU Yalunina, E.N. AU Matveeva, A.I. AU Potys'ev, O.I. PY 2025 IS 10 PB Electronic science