From April 30 to May 14, specialists from the Kamchatka branch of the Russian State Research Center “All-Russian Research Institute of Fisheries and Oceanography” (VNIRO) Semyon Veselov and Anton Biryukov conducted aerial surveys to assess the resources of Korfo-Karaginskaya herring in the Karaginskaya subzone.

From May 19 to 25, specialists from the Saratov branch of the Russian State Research Center “All-Russian Research Institute of Fisheries and Oceanography” (VNIRO) conducted field research on the Iriklinskoye Reservoir and the Ural River in the Orenburg Region.

According to the Sakhalin-Kuril Territorial Administration of the Federal Agency for Fishery, as of May 26, the catch of masu salmon in the framework of amateur fishing amounted to 1,231 tons, and the catches are concentrated in the Aniva District.

The survey work on studying the dynamics and conditions of downstream migration of young Pacific salmon on the northeastern coast of Sakhalin Island will be carried out from May 22 to July 7 by joint efforts of scientists from the Department of Anadromous Fish of Russia of the Russian State Research Center “All-Russian Research Institute of Fisheries and Oceanography” (VNIRO) and the Laboratory of Salmon Fish of the Sakhalin Branch.

At the end of April 2025, a team of scientists from the Azov-Black Sea branch of the Russian State Research Center “All-Russian Research Institute of Fisheries and Oceanography” (VNIRO) conducted a specialized hydrological voyage along the Sea of ​​Azov on the research vessel “Oleg Betin”.

On May 20, a meeting on the interim results of the spring flood was held at the residence of the Governor of the Astrakhan Region Igor Babushkin, in which the head of the Volga-Caspian branch of the State Research Center of the Russian Federation "All-Russian Research Institute of Fisheries and Oceanography" (VNIRO) Anatoly Bogachev made a report on the state of the flood situation in the Astrakhan Region in 2025.

Specialists from the fisheries ecology laboratory of the Tyumen branch of the Russian State Research Center of Fisheries and Oceanography (VNIRO) have completed long-term research in the Ob Bay. The scientific group was based in the area of ​​the village of Novy Port, a traditional place for monitoring the wintering of northern ichthyofauna.

From May 12 to 16, specialists from the Azov-Black Sea branch of the Russian State Research Center of Fisheries and Oceanography (VNIRO) conducted an expedition as part of state monitoring of the activities of enterprises for the artificial reproduction of pike perch and roach.

Successful artificial reproduction of valuable fish populations begins with the correct maintenance of broodstock. All fish farming processes are seasonal and subject to the life cycle of the fish.

Specialists from the Altai branch of the Russian State Research Center “All-Russian Research Institute of Fisheries and Oceanography” (VNIRO) conducted research on the Ob River within the Pervomaysky and Shelabolikha districts of the Altai Territory.