Translation. Region: Russian Federal
Source: Rosneft – An important disclaimer is at the bottom of this article.
A Rosneft expedition to study valuable fish species in the Yenisei River estuary has departed from Dudinka. Leading specialists from the Lomonosov Moscow State University Marine Research Center, the Murmansk Marine Biological Institute of the Russian Academy of Sciences, and the company's Arctic Research Center are participating in the fieldwork. The expedition is part of the company's Tamura corporate environmental program.
The Tamura project, which launched in 2024, aims to update information on the status of key animal species in the Far North. Scientists are studying the Kara subpopulation of polar bears and wild reindeer, as well as valuable bird and fish species, in western Taimyr. The program will run until 2027.
The first stage of research into the ichthyofauna of the Yenisei estuary includes a comprehensive set of studies, including an assessment of the population status of the most valuable fish species, as well as the environmental conditions of their habitats and spawning grounds.
Scientists will also study the fish's food supply—phytoplankton, zooplankton, and macrozoobenthos. The research vessel will navigate the entire estuary of the Yenisei River from Dudinka to the port of Tanalau, including the Yenisei's largest tributaries: the Bolshaya Kheta, Pelyatka, Dudinka, Tanalau, and Muksunikha rivers.
The second phase of the fish study is planned for 2026. It will assess the status of the region's ichthyofauna populations at various stages of their life cycle, including feeding and spawning. The research will also include biological analysis—measuring the weight, size, and feeding habits of the Yenisei's most abundant and valuable fish species, such as muksun, broad whitefish, and nelma.
Samples obtained during the expedition work will be studied in specialized laboratories of the project participants.
Rosneft places special emphasis on preserving biodiversity and is implementing the largest comprehensive Arctic exploration program since Soviet times. Over the past 13 years, nearly 60 expeditions have been conducted, during which scientists have studied the region's hydrometeorological, geological, and biological features. This has allowed them to collect a unique array of information on the Arctic's climate, natural environment, and wildlife.
Department of Information and Advertising of PJSC NK Rosneft September 30, 2025
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