the Caspian Sea

Introduction. The article discusses the measures taken in Russia and other Caspian littoral states to protect the environment of the Caspian Sea. Theoretical analysis. The author explores measures to develop an eco-network approach to the protection of water and biological resources of the Caspian Sea, problems of biodiversity conservation, the importance of protecting the Caspian ecosystems in the strategy of transition to sustainable development, as well as environmental threats due to sea level changes. Results. The conducted research proves that environmental protection of the Caspian Sea can only be of a complex nature, which requires further development of the doctrinal and normative eco-network approach, which is now at the beginning of its formation and implementation. This approach involves taking comprehensive measures to protect the aquatic ecosystems of the Caspian Sea together with the protection of other natural resources (mainly aquatic bioresources), as well as measures to improve the ecological condition of the land (coastal) territories and water bodies adjacent to the Caspian Sea, including improving the ecological condition of the Volga. The development and implementation of such measures will make it possible to take another step towards achieving the Sustainable Development Goals in Russia, which presuppose the balance of economic, environmental and social interests, including in local territories.