Abstract
The purpose of the work is to study the institutional environment that ensures the sustainable development of the Russian fisheries complex and the changes that contribute to the intensification of fish and seafood trade between the EAEU countries The methods used: monographic, statistical, scientific abstraction, logical analysis allowed us to explore the theoretical foundations of the creation of institutions and changes in the institutional environment under the influence of external factors. Novelty: the methodological aspects of the formation of the institutional environment have been clarified and the systematization of institutional changes aimed at ensuring the sustainable development of the Russian fisheries complex and increasing the volume of fish and seafood trade with the EAEU countries has been carried out on the basis of the Technical Regulation “On the Safety of Fish and Fish Products No. (EAEU TR 040/2016), which provides for appropriate requirements for the safety and quality of products. Practical significance: High-level use of the potential of the Russian fisheries complex and increasing the efficiency of control of trade operations with the EAEU countries in the digital environment, minimizing risks and transaction costs caused by changes in the institutional environment to ensure mutually beneficial trade in fish and seafood.