The Tsimlyansk Reservoir is one of the most important inland freshwater bodies of water in the Russian Federation, which continues to provide an annual catch of aquatic bioresources of up to 8–10 thousand tons, which is 5–7 % of the fish caught in freshwater bodies of water in the country. The Tsimlyansk Reservoir, for more than 70 years of history from the moment of its formation to the present day, remains one of the most fish-productive among inland water bodies with commercial fish productivity of 45–50 kg / ha in previous years, maintaining a fairly high commercial and economic importance for a long time. Multi-species fishing is carried out on the reservoir, the total catch consists of bioresources of seventeen fish species. In this regard, the targets and corresponding biological reference points for stock assessment and exploitation vary among fish species.

   The generalized information on the hydrological regime and the level of development of hydrobionts of the lower section of the Oka River is presented. The structure of the fish population of the riparian and medial zones, reservoirs of the lateral system according to scientific research surveys is given. An assessment of the ichthyomass in the area under consideration was carried out with the allocation of the species structure. The features and changes in commercial fishing, catch volumes and catch structure are considered. Recommendations are given for the rational exploitation of aquatic biological resources.

   The results of calculations on the contribution of generations to the size composition of catches of black halibut Reinhardtius hippoglossoides are presented. By calculating the deviations of the proportion of the size class of a particular generation from the average annual share in catches, this contribution can be traced in high-yielding and low-yielding over several years. The interannual dynamics of the generation’s contribution was manifested due to the presence of a dominant age group in the size class. The results obtained allow us to speak about the validity of age estimates from 4 to 11 years old.

   Information provided on the occurrence of Japanese anchovy in Sakhalin waters in 2000–2023, its size composition, and biological condition. We found that on the western and eastern coasts of the island the trend in size composition currently has the opposite direction. Data on stranding of the Japanese anchovy on Sakhalin coast in 2007–2023 is presented, and assumptions are made about their causes.

   Arctic cisco is a valuable commercial species. It is one of the main fishing objects in the lower reaches of the Yenisei River. Since the beginning of the 2000^s, there has been a decrease in biological indicators and the number of spawning stocks of this species in the Yenisei River, in connection with which, since 2019, restrictions have been established on the harvest of the Yenisei population of Arctic cisco for all types of fishing with the exception of fishing for research and aquaculture purposes. The research analyzes changes in the main biological indicators of the spawning stock of Arctic cisco in the Yenisei River (age and size composition, standard length, weight, absolute fertility) in the period from 1986 to 2023. Particular attention is paid to the connection between the biological parameters of the herd and the intensity and specificity of fishing for this species in different years. A significant decrease in the average values of fecundity, standard length, body weight and age of fish in the spawning stock was noted in the period 2008–2018, in comparison with data for 1986–2007, which is associated with the reorientation of fishing from the feeding part of the population to the spawning one and, as consequence, an increase in fishing mortality of sexually mature individuals. Based on materials collected in 2019–2023, there is an increase in the average values of standard length and weight of fish in the spawning stock; however, these indicators are still lower than the values of 1986–2007.

   The qualitative and quantitative composition of fish catches during amateur fishing in Peter the Great Bay in the winter-spring period of 2024 – from January 1 to April 30 is considered. There are 2 fishing seasons: the closed-water fishing season, when there was ice in part of the coastal areas of Peter the Great Bay, and the open-water fishing season – from March 15 to April 30. The number of places for amateur fishing has been determined. The number of fishermen is calculated within sight (on ice – on an area of 300 m² and in open water – on an area of one nautical mile). The total catch of each species by amateur fishermen has been determined. Based on the data of amateur fishing, an attempt was made to assess the abundance of fish in the covered water area.

   The paper considers the history of the Russian fishery of Greenland halibut (Reinhardtius hippoglossoides) from the Barents Sea from the mid-1960s to the present. Based on the statistical analysis of the database of ship’s daily reports, the series of abundance indices at various stages of fishing development are reconstructed. The efficiency of various fishing complexes is compared and the catch is adjusted for effort, taking into account the productivity growth factor. The problems of applying size-structured models of population dynamics to the assessment of the stock status of Greenland halibut are discussed. It is shown that the current state of halibut stocks allows for the harvest of up to 28 thousand tons without damage to the reproduction of the population.

   The harvest control rule for northeast Arctic cod has been clarified. It is shown that the transition from a linear reduction in recommended fishing mortality as a function of spawning stock biomass at spawning stock biomass values below Bpa to a reduction according to an S-shaped function leads to advantages over the current HCR and can be recommended as an alternative.

   Comparison of the spawning stock biomass, calculated using the SAM model, with the volume of catch indicates a multiple underestimation of biomass estimates. During 1946–2023, the excess of catch volumes over the spawning stock amounted to 18 million tons. Correlation analysis of comparison of the spawning stock biomass of cod in the period 1980–2020 and the number of cod recruitment at the age of 3 years with a lag of 3 years ago showed the absence of any relationship between these phenomena (r = 0,03). The modern Harvest control rule for cod fisheries in the Barents and Norwegian Seas is based on the dependence of fishing mortality on the spawning stock biomass. However, significantly underestimated estimates of the spawning stock lead to low estimates of the TAC, which explains the prevalence of catch over the spawning stock biomass. A way out of this situation may be to replace the spawning stock biomass with the fishable stock in the Harvest control rule.

   The new approach to cohort modeling of fish populations in conditions of artificial reproduction, taking into account the possibilities of the reservoir’s food supply, was presented. The combined modeling approach includes the advantages of traditional cohort modeling of population dynamics and a hydrobiological approach to assessing the carrying capacity of a reservoir. The approbation of the presented approach was carried out by the Russian sturgeon Acipenser gueldenstaedtii population data in the Sea of Azov during the period 1985–2003. Results approbation of the presented model made it possible to reliably describe the dynamics of the commercial stock of the Russian sturgeon population in retrospective and has a significant advantage (R² was 0,1 higher, the mean absolute error was lower on 6,2%) relative to the previously presented DAP model.

   The article analyzes the issues of organizing trade in the domestic fish products market and determines the mechanisms for market saturation.

   The results of a number of studies by Russian scientists on the state and problems of economic development of the Russian Agricultural Complex are summarized. The macroeconomical dynamics in the form of linear regression of fish catch and extraction of other aquatic biological resources in the primorsky subjects of the Russian Federation for 2005‒2022 is analyzed. The features of the dynamics with the allocation of regions where an increase or decrease in catches of RBB was carried out in 2005-2022 were revealed. The parameters of the average annual dynamics of the reduction in the catch of RBF in the subjects of the Russian Federation with a decrease in the production rate and growth in the subjects of the Russian Federation with an increase in the production rate are calculated. An insignificant coefficient of production determination by year was revealed for the total volume in all subjects of the Russian Federation with a decrease in production (0,3452). In general, for all subjects of the Russian Federation, with an increase in the catch of VBR, the coefficient of determination by year is 0,745. There is a general significant correlation between the production of VBR and the created GRP per inhabitant in all the coastal regions of the country, which characterizes the significant impact of the fishing industry on the created GRP in specific coastal regions of the Russian Federation. The average annual dynamics of GRP growth per inhabitant in the primorsky regions of the Russian Federation is analyzed. The special importance of the industry, the extraction of UBR for the Far Eastern regions of the country, in which the main fish stocks for the country are extracted, is noted. The features of the interrelationships of GRP and fish catches (and other aquatic biological resources) for the use of analytical results in scientific and applied forms of regulation of fisheries management in the coastal regions of the country are revealed.

   The article is devoted to the study of the possibilities of improving the economic policy in the fisheries complex of Kamchatka Krai through an integrated approach. In the context of increasing global demand for fish products and limited natural resources, the author proposes a set of measures aimed at optimizing resource management, improving infrastructure and strengthening international cooperation. To overcome the limitations associated with the methods and tools of management used, a comprehensive model was developed aimed at improving the economic policy of the fisheries complex of Kamchatka Krai. The advantages and disadvantages of the model, as well as solutions for eliminating the identified deficiencies, are described. Indicators for all blocks of the model are defined and conclusions are made.

   The North Pacific Marine Science Organization (PICES) Review Report was presented by the External Review Committee at the 33rd Annual Conference of organization in October-November 2024. This report evaluates the PICES activities and contains a number of recommendations to improve its functioning in accordance with modern requirements imposed by both contracting countries and the international community as a whole. One of the key report recommendations is the transition from pure science to practical (actionable) science. At present, the content of this term, as applied to the PICES activities, has not been finally determined. It is necessary to clarify the terminology and organize a discussion on the PICES transition to providing actionable scientific information in order to shape a national position regarding this issue in the relevant bodies of the organization.