The article reveals the role and influence of academic science on the development of the fisheries industry.

According to the participants of the conference “Ship Repair, modernization, components”, one of the problematic issues in the relationship between a shipowner and a domestic ship repair company remains a transparent and understandable pricing system in ship repair.The conducted research has shown that there is no simple solution to this issue, although it largely depends on the rules of organizational relationships between participants in this type of business. The authors concluded that in order to solve the problem, it is necessary to consider the integration of ship-owning companies and domestic ship repair enterprises.
Various scientific approaches, such as systematic, complex, situational, and targeted, were used to conduct qualitative research. The article suggests several options for solving the issue of a transparent and understandable pricing system in ship repair, which can lead to further integration of shipowners and ship repair companies.

The article discusses the problems of assessing environmental debt using the example of industrial fishing in the coastal seas of Russia. The conceptual essence of this process is revealed. The definition of “hot spots” is given in application to the assessment of ecological debt and services of marine ecosystems. The necessity of using the concept of ecological development, which enshrines the concept of ecological debt, as the basis for all programs and projects of integrated management of marine activities in the coastal seas of Russia, is substantiated. It is shown that when making decisions related to new investments in industrial fisheries, it is necessary to develop long-term strategies and programs for integrated marine management. When developing them, it is important to avoid a topical problem that is called “discounting discrimination” among environmental economists.

In the area of the village. At the end of October 2020, there was a massive release of bivalve mollusks in a coastal strip 1.2-1.5 km long, 1.5-15 m wide. To determine the causes of this phenomenon, anthropogenic (presence of a landfill located near the area of mollusk releases) and natural (strong storm, spring tide and elevated temperature) occurred water) factors. On the entire coast, only two species of bivalve mollusks Spisula voyi and Siliqua alta were found in the ratio of the number and mass of species 0.59:0.41 and 0.65:0.35, respectively. The size, age and number of commercial shellfish washed ashore are considered. On the surveyed section of the coast (S = 6075 m2), the total amount of Siliqua alta, aged from 2 to 9 years, was estimated at 16.6 tons, Spisula voyi, aged from 2 to 10 years, was estimated at 31.2 tons.

Long-term abundance dynamics of Atlantic salmon in the Tuloma River were analyzed. It was an opinion given that the Nizhne-Tulomskaya and Verkhne-Tulomskaya hydropower plants have no significant impact on the reproductive capacity in the river. Ulcerative dermal necrosis causing spawners mortality and illegal fisheries were also considered to have an impact on the abundance dynamics. It was concluded that all these cumulatively have recently had a negative impact on the stock. Being the cause of mass mortality of juveniles in Norwegian rivers and in the Keret’ River (Russia), monogenean Gyrodactylus salaris was detected and identified as a risk factor. A number of practical measures were suggested to restore the stock abundance up to the long-term means.

The characteristics of the state of stocks and dynamics of herring fishing in the Far Eastern fisheries basin according to the data of 1935-2025 are presented, and the prospects for their fishing are assessed. The results obtained will improve the efficiency of using the reserves of Far Eastern herrings.

During the history of monitoring fishing and population parameters of the Black Sea-Azov pontic shad, researchers have identified 9 periods of structural organization of the population, mainly due to anthropogenic transformation of the reservoir. The paper presents updated results of an assessment of stock dynamics, fishing mortality, and an analysis of the specifics of fishing organization in the Kerch Strait and the Don river in 2020-2024. The results of stock assessment showed that the biomass of the commercial pontic shad stock was partially determined by the level of fishing mortality, and continues its downward trend starting since 2021, with signs of overfishing. Commercial catches in the Kerch Strait and the The Don had a uniform proportion in the period 2020-2022, in 2023 the main part of the catch volume was recorded in the Kerch Strait, in 2024 – in the Don River. The peak of fishing efficiency was recorded in May of each year (with the exception of 2023), due to the high efficiency of fishing in the lower reaches of the Don River during spawning migration. The lenght structure of the pontic shad population, estimated from the results of bottom trawling in the autumn period, indicates a deterioration in the structure of the commercial population (its abundance and structural diversity) in 2021 and the subsequent restoration of the structure of the commercial population in 2022-2024.

The paper presents the results of an analysis of satellite images obtained by the Landsat-7, Landsat-8 and Sentinel-2B satellites on the water surface area of Kulundinskoe Lake in the Altai Territory in 2005-2024. The lake area varied within 15% (609-720 km2). The fluctuation of the water surface area depends on the degree of moisture in the previous 2-4 years and causes interannual changes in water salinity (r xy = –0,645). The salinity of Kulundinskoe Lake has intra- and interannual fluctuations in the range of 35% and 55%, respectively. The lake area and water salinity have a close to linear relationship (y=–0,7082x+747,61). The data set allowed us to identify high-water years with low salinity (2005-2008, 2010-2011, 2018-2021, 2024) and a dry period with high salinity (2009, 2012-2017, 2022-2023). The hydrochemical regime determines the state of the biota of Kulundinskoe Lake, which belongs to commercial reservoirs for commercial fishing of artemia (at the stage of cysts).

The article analyzes the dynamics of the water level and water content of the Ivankovo reservoir for the period from 1951 to 2022 and their impact on commercial fish stocks. It has been established that the reservoir is characterized by high interannual variability of water content and significant fluctuations in water level, especially during the spawning period. A decrease in stocks of most fish species was revealed in the early 2000s, with subsequent stabilization and partial recovery to date. There was a negative correlation between the water level response and fish stocks in the period from 1999 to 2007, which changed to a positive correlation after the closure of the fishery in 2007. It is assumed that the decrease in the maximum water level utilization in recent years, associated with a change in the reservoir regulation regime, contributes to the restoration of the number of some fish species. In general, the water level regulation regime in the Ivankovo reservoir has a significant impact on the state of its ecosystem and requires further study to develop optimal measures for the conservation and rational use of fish resources.

3D phase portraits of the dynamics of the Yenisei sturgeon are presented and their connection with Kondratiev Waves is shown. Morphometric features are considered – the proportions of the heads and the types of coloring. The photo of Chelbash is given. The dependence of the proportion of the snout on the length and age for Amur, Ob and Yenisei sturgeons is constructed. An estimate of the proportion of sturgeons of extreme size is given. The Pennet table for the Yenisei sturgeon is given , matrix of fitness functions of the Costicin system λ.

The article describes a simple procedure for the rapid tagging of sturgeon producers during spawning season. Tagging is performed by punching holes in the pectoral fins using veterinary forceps.

The possibility of long-term storage of sperm from sex-reversed males of rainbow trout with preservation of sperm activity and their fertilizing ability is shown. The assessment was carried out by the method of diallelic crosses of individual females with individual males. The fertilization rate was higher when eggs were inseminated in buffer solution than in water, especially with a long shelf life of sperm.

Due to the sanctions policy of the United States and EU countries, domestic fishing companies were forced to abandon the previously prevailing business conditions. Currently, companies are focusing on the domestic coast and onshore infrastructure enterprises that support their maritime activities.The effective functioning of the fishing fleet, according to the authors, depends on the availability of attractive business conditions within the framework of domestic coastal infrastructure enterprises, which include ship repair companies.
Various scientific approaches, such as systematic, integrated, situational, and targeted, were used to conduct qualitative research. The article summarizes the opinions of experts on the prospects for the development of ship repair in the coastal regions of the Arctic zone of Russia using the example of the Murmansk region.

The paper examines the characteristics of ropes used to make edges and identifies their important parameters, and also proposes simple methods for selecting effective ropes by fishing companies and manufacturers of fishing gear. The factors influencing the efficiency of edges are shown, and the optimal ranges of rope characteristics are given based on the data from catchability studies.

The aim of the scientific research was to develop a sous vide technology for a fish product and study its quality. The objects of the study were: Far Eastern salmon, vegetables, citrus fruits, spicy and aromatic greens, spices, sauces and fat-containing components. To prepare semi-finished products of a high degree of readiness, plastic bags were used in which samples were vacuumed and subjected to low-temperature sous vide processing. Combinations of fish with other components of the recipe were selected experimentally and during tastings, ensuring the production of juicy and aromatic products. The developed samples: salmon with thyme, aromatic salmon, salmon with greens and tartar sauce and tender salmon have high quality indicators. The average score is 4.7–4.8. Short-term heat treatment from 30 to 45 minutes at 50-65 °C and keeping the processed product in a closed airless space made it possible to reduce the loss of mass and nutrients into the environment and obtain a product with a rich aroma, rich in high-quality proteins, ω-3 PUFAs, polyphenols, vitamins and antioxidants.

To preserve the genetic diversity of sturgeon during artificial reproduction, the use of cryopreserved sperm samples stored in cryobanks is becoming increasingly important. The observed trend towards a decrease in the quality of seed material from fish farms determines the need to improve cryopreservation technologies. Based on the results of experiments conducted over six years on ejaculates of varying quality, the basic technology for cryopreservation of sturgeon sperm that we had previously developed was optimized. The use of optimized technology will allow for the highly efficient freezing of large volumes of sperm for reproductive and biodiversity conservation purposes.