n October of this year, as part of the implementation of the applied topic "Complex ichthyological and hydrobiological studies of the main freshwater ecosystems of the Volga-Caspian basin in order to assess their receiving capacity" on the reservoirs of the Volga-Don shipping canal (Karpovskoye, Bereslavskoye and Varvarovskoye reservoirs), employees of the Volgograd branch of the State Research Center of the Russian Federation "All-Russian Research Institute of Fisheries and Oceanography" (VNIRO) conducted planned autumn hydrobiological studies to collect material from the main groups of hydrobionts that form the food base of fish (phytoplankton, zooplankton and zoobenthos). The material was collected along an established grid of stations, which included 27 sampling points. During the work, the branch's specialists collected 81 hydrobiological samples. At the same time, measurements of some hydrochemical and hydrological characteristics of water bodies (depth, temperature and transparency of water, oxygen content, electrical conductivity, etc.) were carried out in order to assess anthropogenic factors affecting the functioning of the reservoirs of the Volga-Don Shipping Canal.

On October 18, a Kazakh delegation headed by Vice Minister of Agriculture Amangali Berdalin visited the Astrakhan Region to fulfill the assignment of the Head of the Republic of Kazakhstan to develop design and estimate documentation for the project "Updating the Atyrau Sturgeon Farm", part of which took place at the Volga-Caspian branch of the State Research Center of the Russian Federation "All-Russian Research Institute of Fisheries and Oceanography" (VNIRO).

The employees of the laboratory of commercial invertebrates of the Tyumen branch of the State Research Center of the Russian Federation "All-Russian Research Institute of Fisheries and Oceanography" (VNIRO) conducted the final research this year in the reservoirs of the south of the Tyumen region. The two-week expedition covered seven lakes of the Tyumen and Nizhnetavdinsky districts.

From October 1 to 13, specialists from the Ural branch of the Russian State Research Center “All-Russian Research Institute of Fisheries and Oceanography” (VNIRO) conducted field work on the lakes of the Chelyabinsk region.

The format of events in the form of excursions to industry institutions is considered the most effective for senior students of specialized universities, since it allows them to get as close as possible to the specialty of interest and see the future profession "from the inside".

In October, at the height of the autumn fishing season, the Volga-Caspian branch of the Russian State Research Center "All-Russian Research Institute of Fisheries and Oceanography" (VNIRO) continues monitoring the fishery conducted in the watercourses and reservoirs of the Astrakhan region.

On October 14-15, employees of the Nizhny Novgorod branch of the State Research Center of the Russian Federation "All-Russian Research Institute of Fisheries and Oceanography" (VNIRO) took part in the First All-Russian Forum "Great Rivers of Russia through the Eyes of Children", held at the cultural and educational center "Academy "Mayak"" in Nizhny Novgorod.

Currently, the state of sturgeon populations and the problems of their conservation are particularly relevant, since due to excessive exploitation and loss of natural spawning grounds, sturgeons are almost on the verge of extinction.

Lake Ak-Gyol is located in the south-eastern part of the city of Makhachkala in the Republic of Dagestan in the Reduktorny settlement microdistrict, 1 km from the shore of the Caspian Sea and is completely surrounded by urban development.

In the first half of October, ichthyologists of the Magadan branch of the Russian State Research Center “All-Russian Research Institute of Fisheries and Oceanography” (VNIRO), during expeditions to the upper reaches of the rivers of the Taui Bay, examined the spawning grounds of chum salmon and coho salmon. The work was carried out using unmanned aerial vehicles (UAVs).