«Scientific Journal of the Far Eastern State Technical Fisheries University». Vol. 75. No 1. 2026
FOOD SYSTEMS
Original article
Extracts from walnut partitions and shells
Anna V. Bukleshova
Astrakhan State Technical University, Astrakhan, Russia,
Postgraduate student of the Department of Technology of Goods and Commodity Research
e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it., ORCID: 0009-0003-5138-4104
Maria E. Tsibizova
Astrakhan State Technical University, Astrakhan, Russia,
Doctor of Technical Sciences, Professor, Professor of the Department of Technology of Goods and Commodity Research, SPIN-code: 6444-7526, AuthorID: 469592
e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it., ORCID: 0000-0002-3918-7402
Abstract. Research was conducted to obtain extracts from walnut waste. Walnut partitions and shells, taken in natural proportions, were used for extraction. To fully extract biologically active substances from walnut partitions and shells, taken in natural proportions, a two-stage extraction was tested. In the first stage of extract production, water, 70% alcohol, 2% acetic acid solution, and sunflower oil were used at a plant material: extractant ratio of 1:20, an extraction temperature of 60 °C, and a process duration of 45 minutes. To further extract fat-soluble biologically active substances from the meal, a second extraction stage was carried out after the first stage. During the second stage of extraction, the choice of vegetable oil from the following types was justified: sunflower, rapeseed, corn, and unrefined amaranth. The second-stage extraction temperature was 70°C for 120 minutes at a plant material to extractant ratio of 1:20. Based on the results of a study of the organoleptic quality indicators of the extracts obtained in the first stage of extraction and the influence of extractants on the recovery of extractive and tannin substances, organic acids, and ascorbic acid, it was recommended to use water instead of 70 % alcohol. A profilogram of the comprehensive organoleptic evaluation of model extract samples from a mixture of walnut partitions and shells obtained using vegetable oils showed that the use of sunflower oil as an extractant yielded higher scores for taste, aroma, transparency, and color, compared to extracts obtained using rapeseed, corn, and amaranth oils. In terms of physicochemical properties, aqueous and oil extracts differ in dry matter content, refractive index, density, optical density, and slightly in pH value.
Keywords: walnut partitions and shells, extraction methods, extraction stages and modes, experimental extract samples, organoleptic properties, physicochemical properties
© Bukleshova A. V., Tsibizova M. E., 2026
For citation: Bukleshova A. V., Tsibizova M. E. Extracts from walnut partitions and shells. Scientific Journal of the Far Eastern State Technical Fisheries University. 2026; 75(1):8–18. (In Russ.).
The article was submitted 02.03.2026, approved after reviewing 10.03.2026, accepted for publication 16.03.2026.
Review article
Food safety culture as a key factor in ensuring the quality and safety of food products in food industry enterprises
Elena V. Glebova
Far Eastern State Technical Fisheries University, Vladivostok, Russia,
PhD in Engineering Sciences, Associate Professor, Associate Professor of the Department of Control of Technical Systems, SPIN-code: 9540-4656, AuthorID: 740901
e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it., ORCID: 0000-0003-4366-3819
Abstract. The article discusses the concept of food safety culture as an integral part of corporate culture and existing quality and safety management systems in food production enterprises. The formation and development of a mature food safety culture based on the five key elements (GFSI) and integrated into the enterprise's processes is a crucial factor in ensuring not only formal compliance with international initiatives and national food safety standards but also a genuine improvement in product quality and safety through changes in staff behavior and mindset. The development of a methodology for assessing food safety culture allows us to translate its "abstract" concept into a practical tool for managing food safety.
Keywords: food safety culture, GFSI, GOST R ISO 22000-2019, elements of food safety culture, assessment of the level of maturity of food safety culture
© Glebova E. V., 2026
For citation: Glebova E. V. Food safety culture as a key factor in ensuring the quality and safety of food products in food industry enterprises. Scientific Journal of the Far Eastern State Technical Fisheries University. 2026; 75(1):19–28. (In Russ.).
The article was submitted 18.11.2025; approved after reviewing 10.12.2025; accepted for publication 15.12.2025.
Original article
Kinetic regularities of extraction of bioactive compounds from fresh spinach and dried chlorella microalgae
Nikita D. Davydov
Astrakhan State Technical University, Astrakhan, Russia,
Postgraduate student of the Department of Technological Machines and Equipment
e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it., ORCID: 0009-0008-5401-9141
Sergey A. Bredikhin
Russian State Agrarian University – Moscow Timiryazev Agricultural Academy (RSAU – MTAA), Moscow, Russia,
Doctor of Technical Sciences, Professor, Professor of the Department of Processes and Apparatuses of Processing Industries, SPIN code: 1267-3480, AuthorID: 176859
e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it., ORCID: 0000-0002-6898-0389
Albert H.–H. Nugmanov
Russian State Agrarian University – Moscow Timiryazev Agricultural Academy (RSAU – MTAA), Moscow, Russia,
Doctor of Technical Sciences, Professor, Professor of the Department of Тechnologies of Storage and Processing of Fruit and Vegetable and Crop Products, SPIN-code: 5934-7548, AuthorID: 561824
e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it., ORCID: org/0000-0002-4093-9982
Pavel D. Osmolovskiy
Russian State Agrarian University – Moscow Timiryazev Agricultural Academy (RSAU – MTAA), Moscow, Russia,
PhD in Agricultural Sciences, Associate Professor of the Department of Тechnologies of Storage and Processing of Fruit and Vegetable and Crop Products, SPIN-code: 5809-7289, AuthorID: 932977
e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it., ORCID: org/0000-0003-1131-1552
Alexey V. Zhevnerov
Russian State Agrarian University – Moscow Timiryazev Agricultural Academy (RSAU – MTAA), Moscow, Russia,
PhD in Chemical Sciences, Associate Professor, Associate Professor of the Department of Chemistry, SPIN code: 2395-1929, AuthorID: 321184
e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it., ORCID: 0000-0003-1658-762X
Abstract. Natural pigments chlorophylls and pheophytins are in demand in the food and pharmaceutical industries as safe dyes and biologically active additives. The aim of the work was a comparative experimental study of the kinetic patterns of chlorophyll extraction from crushed fresh spinach leaves (Spinacia oleracea) and pheophytin from dry chlorella powder (Chlorella vulgaris). The extraction was carried out with ethyl alcohol under static conditions at room temperature. The dependences of the optical density of extracts on time were obtained by photometry, on the basis of which the extraction curves C=f(τ) were constructed. The extraction rate curves in the coordinates dC/dt=f(C) were obtained by graphical differentiation. Characteristic periods on kinetic curves for both types of raw materials have been identified and analyzed. It is shown that the mechanism of mass transfer varies significantly depending on the nature of the object and the form of its pretreatment. The data obtained can be used to optimize the technological modes of obtaining natural pigments from various types of plant raw materials and for mathematical modeling of extraction processes.
Keywords: fresh spinach, dry chlorella, chlorophyll, pheophytin, extraction, kinetics, extraction curve, extraction rate
© Davydov N. D., Bredikhin S. A., Nugmanov A. H.-H., Osmolovsky P. D., Zhevnerov A. V., 2026
For citation: Davydov N. D., Bredikhin S. A., Nugmanov A. H.-H., Osmolovsky P. D., Zhevnerov A. V. Kinetic regularities of extraction of bioactive compounds from fresh spinach and dried chlorella microalgae. Scientific Journal of the Far Eastern State Technical Fisheries University. 2026; 75(1):29–38. (In Russ.).
The article was submitted 09.03.2026; approved after reviewing 17.03.2026; accepted for publication 17.03.2026.
Original article
Assessment of the applicability of mixtures based on organic acids and fructose as natural solvents for the production of extracts of Chamaenérion angustifolium L. (Scop.)
Alena A. Koigerova
Federal Research Center Kola Scientific Center of the Russian Academy of Sciences, Research Center for Human Adaptation in the Arctic, Laboratory of Medical and Biological Technologies, Murmansk region, Apatity, Russia,
Researcher of Laboratory of Medical and Biological of Research Center for Human Adaptation in the Arctic, SPIN-code: 6702-2124, AuthorID: 1021247
e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it., ORCID: 0000-0002-8843-0122
Nikita S. Tsvetov
Federal Research Center Kola Scientific Center of the Russian Academy of Sciences, Research Center for Human Adaptation in the Arctic, Laboratory of Medical and Biological Technologies, Murmansk region, Apatity, Russia,
Head of Laboratory of Medical and Biological of Research Center for Human Adaptation in the Arctic, PhD in Chemical Sciences, SPIN-code: 3617-2826, AuthorID: 36172826
e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it., ORCID: 0000-0003-1356-2259
Yulia V. Shokina
RuMurmansk Arctic University, Murmansk, Russia,
Doctor of Technical Sciences, Professor of the Department of Food Production Technologies of the Institute of Natural Technology, SPIN-code: 2456-9909, AuthorID: 78078
e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it., ORCID: 0000-0002-6513-1912
Abstract. The study compares the effectiveness of three different mixtures based on organic acids (malonic, malic and citric) and fructose for the extraction of phenolic compounds from the leaves of willow tea growing on the Kola Peninsula. Optimal extraction conditions were obtained using the Box-Behnken design. The obtained extracts can be used to enrich functional drinks.
Keywords: deep eutectic solvents, functional foods, flavonoids, Arctic, ultrasonic extraction, Chamaenérion angustifolium L. (Scop.)
Funding: the work was carried out within the framework of the research topic FMEZ-2025-0064.
© Koigerova A. A., Tsvetov N. S., Shokina Yu. V., 2026
For citation: Koigerova A. A., Tsvetov N. S., Shokina Yu. V. Assessment of the applicability of mixtures based on organic acids and fructose as natural solvents for the production of extracts of Chamaenérion angustifolium L. (Scop.). Scientific Journal of the Far Eastern State Technical Fisheries University. 2026; 75(1):39–51. (In Russ.).
The article was submitted 17.02.2026; approved after reviewing 02.03.2026; accepted for publication 10.03.2026.
Original article
A pilot plant for producing a feed additive "Feed smoothie" for productive animals from vegetable and fruit waste
Kirill I. Koptelov
Russian Biotechnological University (ROSBIOTECH), Moscow, Russia,
Postgraduate student of the Department of Food Safety, SPIN-code: 9355-4280
e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it., ORCID: 0000-0001-8111-463Х
Abstract. Currently, the bulk of fruit and vegetable waste is eliminated from circulation by dumping it in landfills, which negatively affects the environment and is not economically beneficial. To eliminate these problems, a method for recycling vegetable and fruit waste to produce a feed additive for productive animals has been developed and tested in production conditions. To increase the scale of the experiment and move from laboratory research to industrial implementation, a pilot plant was designed to solve a number of important practical tasks. Limitations were taken into account during the design: a complete technological scheme for future production should be implemented at the pilot plant, all equipment should be of domestic production, and line productivity may vary by increasing or decreasing the productivity of individual equipment items. Calculations carried out during the business planning of the pilot plant showed that the payback period for investments in the pilot plant is one year. An assessment of the prospects of the technology of recycling food waste into secondary feed products using the statistical approximation method has shown that in the next five years it is advisable to use this technology in the national economy to increase the proportion of fruit and vegetable waste returning to the food chain and reduce the negative impact of waste on the environment.
Keywords: waste of fruit and vegetable products, design, technological and auxiliary equipment, information monitoring, resource potential
© Koptelov K. I. 2026
For citation: Koptelov K. I. A pilot plant for producing a feed additive "Feed smoothie" for productive animals from vegetable and fruit waste. Scientific Journal of the Far Eastern State Technical Fisheries University. 2026; 75(1):52–59. (In Russ.).
The article was submitted 13.01.2026, approved after reviewing 29.01.2026, accepted for publication 06.02.2026.
Original article
Assessment of technological risks associated with the use of inulin-containing raw materials in bakery products technology
Vladimir A. Lyakh
Far Eastern Federal University, Vladivostok, Russia,
PhD in Technical Sciences, Dean of the Faculty of Agro-Food Biotechnologies and Food Engineering at Advanced Engineering School «Institute of Biotechnology, Bioengineering and Food Systems», Senior Researcher at Youth Scientific Research Laboratory for Functional, Therapeutic and Sports Nutrition, SPIN code: 3803-9538, AuthorID: 633650
e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it., ORCID: 0000-0001-6999-2210
Aina D. Khasieva
Far Eastern Federal University, Vladivostok, Russia,
Postgraduate student at Advanced Engineering School «Institute of Biotechnology, Bioengineering and Food Systems», Vice-Rector for Educational Work, SPIN code: 1358-6440, AuthorID: 1334929
e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it., ORCID: 0009-0005-2858-0814
Lydmila N. Fedyanina
Far Eastern Federal University, Vladivostok, Russia,
Doctor of Medical Sciences, Professor, Professor at Department of Fundamental Medicine of School of Medicine and Life Sciences, SPIN code: 9803-6837, AuthorID: 251971
e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it., ORCID: 0000-0002-9849-8358
Elena S. Smertina
Far Eastern Federal University, Vladivostok, Russia,
PhD in Technical Sciences, Associate Professor, Associate Professor at Base Department Bioeconomy and Food Security of Faculty of Bioeconomics and Biosafety at Advanced Engineering School «Institute of Biotechnology, Bioengineering and Food Systems», SPIN code: 3932-3561, AuthorID: 438335
e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it., ORCID: 0000-0002-2519-9170
Abstract. The article presents an assessment of technological risks and benefits associated with the application of inulin-containing raw material derived from tubers of topinambur (Helianthus tuberosus L.) cultivated in Primorsky Krai region, in the production process of wheat bread. The research included studying the influence of topinambur tuber powder on key technological parameters of bread, including indicators of gluten quality, leavening capacity of baker's yeast, quantity of yeast cells, organoleptic and physico-chemical quality indices. Changes in these parameters towards negative values may indicate the emergence of technological risks. Conducted experiments allowed determining the optimal content of topinambur tuber powder in wheat bread (mass share of 3%) ensuring improvement of taste qualities and potential increase in nutritional value of the product, as well as confirming safety of the obtained product according to current norms and technical regulations.
Keywords: wheat bread, topinambur, technological risks, gluten, baker’s yeast, organoleptic properties, physicochemical properties, safety indicators
Funding: this work was supported by a government assignment from the Ministry of Science and Higher Education of the Russian Federation (Project No. FZNS-2025-0008, "Development of Domestic Nutraceutical Compositions and Nutraceutical Products Using New Types of Biological Resources and Evaluation of Their Applicability in Food Systems").
© Lyakh V. A., Khasieva A. D., Fedyanina L. N., Smertina E. S., 2026
For citation: Lyakh V. A., Khasieva A. D., Fedyanina L. N., Smertina E. S. Assessment of technological risks associated with the use of inulin-containing raw materials in bakery products technology. Scientific Journal of the Far Eastern State Technical Fisheries University. 2026; 75(1): 60–69. (In Russ.).
Original article
Assessment of functional properties of plant materials used in the production of wild berry beverages
Elena V. Makarevich
Murmansk Artic University, Murmansk, Russia,
PhD in Biological Sciences, Associate Professor, Head of the Department of Microbiology and Biochemistry at the Institute of Medicine and Biology
e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it., ORCID: 0000-0003-1987-275X
Ekaterina V. Kozhukhova
Murmansk Artic University, Murmansk, Russia,
Senior lecturer of the Department Microbiology and Biochemistry of the Medical and Biological Institute
e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it., ORCID: 0000-0003-0994-9805
Olesya V. Mikhnyuk
Murmansk Artic University, Murmansk, Russia,
Senior Lecturer at the Department of Microbiology and Biochemistry of the Institute of Medicine and Biology
e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it., ORCID: 0009-0001-6837-7651
Ekaterina O. Dronina
Murmansk Artic University; Center for Hygiene and Epidemiology in the Murmansk Region, Murmansk, Russia,
student of the 06.04.01 Biology, Microbiology and Biochemistry (Master's degree) Department of Microbiology and Biochemistry of the Institute of Medicine and Biology; laboratory assistant at the bacteriological laboratory
e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it., ORCID: 0009-0009-5377-5866
Abstract. In the context of growing interest in a healthy lifestyle and functional nutrition, consumers are seeking products that help boost immunity and prevent various diseases. A research team from Murmansk Arctic University has developed a technological scheme for producing a functional non-alcoholic beverage based on wild berries and has analyzed some functional properties of the components of the finished product. As a result of the conducted research, it was established that the antimicrobial activity of an extract from narrow-leaved fireweed (Chamaenerion angustifolium) herb, obtained using deep eutectic solvents, against the bacterial strains Staphylococcus aureus wood 46 and Salmonella enteritidis ATCC 6633, as well as a consortium of probiotic microorganisms of the genus Lactobacillus, was determined to be at the level of 100%. The study results also showed that the antibacterial and prebiotic effects of blueberry juice were dose-dependent and species-specific. The juice exhibited 100% inhibitory activity against S. aureus, while at concentrations of 10 and 15 %, it demonstrated pronounced prebiotic properties, stimulating the growth of a consortium of probiotic lactobacilli by 290 and 223 %, respectively. At the same time, all samples of fruit drinks, regardless of the presence of narrow-leaved fireweed extract, possessed high antibacterial activity against the entire spectrum of tested microorganisms. The microbiological parameters of the finished product complied with regulatory requirements, ensuring its stability and safety during 30 days of storage.
Keywords: functional beverage, berry drink, bilberry (Vaccinium myrtillus), fireweed (Chamaenerion angustifolium), Staphylococcus aureus, Salmonella enteritidis, Lactic acid bacteria (LAB), Lactobacillus spp., Gut microbiome
© Makarevich E. V., Kozhukhova E. V., Mikhnyuk O. V., Dronina E. O., 2026
For citation: Makarevich E. V., Kozhukhova E. V., Mikhnyuk O. V., Dronina E. O. Assessment of functional properties of plant materials used in the production of wild berry beverages. Scientific Journal of the Far Eastern State Technical Fisheries University. 2026; 75(1): 70–82. (In Russ.).
The article was submitted 09.03.2026; approved after reviewing 17.03.2026; accepted for publication 17.03.2026.
Original article
Comparative evaluation of organoleptic and structural-mechanical properties of two types of food chitosan for use in food systems
Svetlana N. Maksimova
Far Eastern State Technical Fisheries University, Vladivostok, Russia,
Doctor of Technical Sciences, Professor, Head of the Department of Food Technology, SPIN-code: 4857-2135
e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it., ORCID: 0000-0001-9654-1044
Elena V. Surovtseva
Far Eastern State Technical Fisheries University, Vladivostok, Russia,
PhD of Technical Sciences, Associate Professor, Associate Professor of the Department of Food Technology, SPIN-code: 6588-6658
e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it., ORCID: 0000-0002-0658-943Х
Ksenia S. Kuznetsova
Russian Biotechnology University, Moscow, Russia,
Senior Lecturer, Associate Professor of the Department of Food Safety, SPIN-code: 7524-1847
e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it., ORCID: 0009-0007-2344-4025
Abstract. The paper presents experimentally obtained data on the study of organoleptic (appearance, color, taste) and structural-mechanical characteristics of acetic acid and water-soluble chitosans with the aim of effectively using biopolymers in food technology as a technological additive and physiological ingredient. Acetic acid and aqueous solutions of chitosan of varying concentrations were obtained. The intensity of the astringent taste of the resulting solutions and their kinematic viscosity, which have the greatest impact on the functional and technological properties of the finished product, were studied. Recommendations for the production and storage of chitosan solutions and its water-soluble derivative for use in food processing are provided. The microbiological parameters of the finished product complied with regulatory requirements, ensuring its stability and safety during 30 days of storage.
Keywords: chitosan, acetic acid, water-soluble, astringent taste, organoleptic properties
© Maksimova S. N., Surovtseva E. V., Kuznetsova K. S., 2026
For citation: Maksimova S. N., Surovtseva E. V., Kuznetsova K. S. Comparative evaluation of organoleptic and structural-mechanical properties of two types of food chitosan for use in food systems. Scientific Journal of the Far Eastern State Technical Fisheries University. 2026; 75(1):83–89. (In Russ.).
The article was submitted 02.03.2026, approved after reviewing 10.03.2026, accepted for publication 16.03.2026.
Original article
Evaluation of the biotechnological potential of fish head oils
Olga Ya. Mezenova
Kaliningrad State Technical University, Kaliningrad, Russia,
Doctor of Technical Sciences, Professor, Head of the Department of Food Biotechnology, Honored Worker of the Fisheries of the Russian Federation, Honored Worker of the Higher School of Russia, Academician of the International Academy of Refrigeration
e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it., ORCID: 0000-0002-4716-2571
Svetlana V. Agafonova
Kaliningrad State Technical University, Kaliningrad, Russia,
PhD, Associate Professor of the Department of Food Biotechnology, Corresponding Member of the International Academy of Refrigeration
e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it., ORCID: 0000-0002-5992-414X
Natalya O. Zhila
Institute of Biophysics, Siberian Branch of the Russian Academy of Sciences, Krasnoyarsk, Russia,
PhD (вiol.), Associate Professor, Senior Researcher of the Laboratory of Biotechnology of New Biomaterials
e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it., ORCID: 0000-0002-6256-00258
Natalya Yu. Romanenko
Kaliningrad State Technical University, Kaliningrad, Russia,
PhD, Associate Professor of the Department of Food Biotechnology, Corresponding Member of the International Academy of Refrigeration
e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it., ORCID: 0000-0002-7433-7189
Natalya S. Kalinina
Kaliningrad State Technical University, Kaliningrad, Russia,
Head of Laboratories of the Department of Food Biotechnology
e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it., ORCID: 0000-0003-0942-5411
Vladimir V. Volkov
Kaliningrad State Technical University, Kaliningrad, Russia,
Director of the Center for Advanced Technologies for the Use of Proteins, Department of Food Biotechnology
e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it., ORCID: 0000-0001-5560-7131
Abstract. A promising method for utilizing fats from fish waste is microbiological bioconversion by autotrophic bacteria synthesizing biodegradable polyhydroxyalkanoates. The aim of this study was to evaluate the biotechnological potential of lipids extracted by different methods from the heads of smoked sprat and mackerel, based on the composition of fatty acids and biogenic mineral elements utilized by microorganisms in substrate nutrition. Fat was extracted from the raw material by thermal and enzymatic methods using alcalase, protosubtilin, and protozyme. The greatest lipid extraction was achieved by enzymolysis using alcalase (82.9% from smoked sprat heads; 67.8% from mackerel heads). In terms of acid and peroxide values, the obtained fats did not meet food safety requirements. The results of fatty acid analysis showed their high biological value based on the content of essential acids important for the microbial synthesis of polymers. No effect of the extraction method on the fatty acid composition was found. In both batches of fats, the largest amounts were docosahexaenoic acid (mackerel: 16.0-16.2%; sprat: 13.8-14.2%) and eicosapentaenoic acid (mackerel: 9.3-9.6%; sprat: 10.3-10.5%). The high substrate potential of all fats was evidenced by the total content of the main groups of fatty acids: unsaturated (68.0-75.9%), polyene (31.5-35.0%) and long-chain (28.3-47.0%). The studied fats contained 18 types of minerals in total quantities of 73,85 mg/kg (sprat) and 0.17 mg/kg (mackerel). The main minerals were calcium, phosphorus, and sodium, with mackerel fat containing 1.5 to 13.2 times more of these elements than sprat fat. At the Institute of Biophysics of the Siberian Branch of the Russian Academy of Sciences, using these fats as a carbon source with the Cupriavidus necator B-10646 strain, copolymers of polyhydroxyalkanoates were obtained - poly(3-hydroxybutyrate-co-4-hydroxybutyrate) with thermodynamic properties that meet the requirements for plastics for food and medical purposes.
Keywords: biopolymers, polyhydroxyalkanoates, fish oil, biotechnological potential, extraction, enzymolysis, fatty acids, mineral elements
Funding: the study was supported by the Russian Science Foundation grant No. 23-64-10007, https://rscf.ru/project/23-64-10007/.
© Mezenova O. Ya., Agafonova S. V., Zhila N. O., Romanenko N. Yu., Kalinina N. S., Volkov V. V., 2026
For citation: Mezenova O. Ya., Agafonova S. V., Zhila N. O., Romanenko N. Yu., Kalinina N. S., Volkov V. V. Evaluation of the biotechnological potential of fish head oils. Scientific Journal of the Far Eastern State Technical Fisheries University. 2026; 75(1):90–101. (In Russ.).
Original article
Investigation of the preservation of food waste from cutting Atlantic cod into fillets of the highest category, depending on technological factors
Yulia V. Shokina
Murmansk Arctic University, Murmansk, Russia,
Doctor of Technical Sciences, Professor, Professor of the Department of Food Production Technologies
e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it., ORCID: 0000-0002-6513-1912
Marina Yu. Litvinova
Murmansk Arctic University, Murmansk, Russia,
PhD in Biological Sciences, Associate Professor of the Department of Microbiology and Biochemistry
e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it., ORCID: 0000-0003-2795-013Х
Yulia D. Shkodina
Murmansk Arctic University, Murmansk, Russia,
Training master
e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it., ORCID: 0009-0002-8702-8200
Pavel V. Antonov
Murmansk Arctic University, Murmansk, Russia,
Postgraduate student 2-year of study at the Department of Food Production Technologies
e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it., ORCID: 0000-0001-5047-7243
Abstract. The article presents the results of a study of the quality and safety of food waste from cutting Atlantic cod into fillets of the highest category (chilled cod shoulders are the bones of the shoulder girdle of fish with a cut of meat and skin, separated by a mechanized method from the head and spine of the fish) during storage under two temperature conditions: mainly from 0 to minus 4 ° C (average the temperature is minus 2 °C) and the engraved temperature is from 0 to 4 °C (the average temperature is 2 °C). Chilled cod shoulder girdle are a highly demanded raw material for the manufacture of frozen fish semi–finished products - dumplings and cutlets. The critical dependence of a comprehensive assessment of the quality and safety of raw materials on the temperature and duration of storage has been established, and the conclusion that it is necessary to adjust the shelf life down to 24 hours at a storage temperature from 0 to minus 4 °C has been substantiated.
Keywords: food fish waste, Atlantic cod shoulder girdle, preservation, comprehensive quality assessment, safety, shelf life
Acknowledgments: this study was conducted with financial support from Murman-Fish LLC (Murmansk, Russia).
© Shokina Yu. V., Litvinova M. Yu., Shkodina Yu. D., Antonov P. V., 2026
For citation: Shokina Yu. V., Litvinova M. Yu., Shkodina Yu. D., Antonov P. V. Investigation of the preservation of food waste from cutting Atlantic cod into fillets of the highest category, depending on technological factors. Scientific Journal of the Far Eastern State Technical Fisheries University. 2026; 75(1):102–117. (In Russ.).
The article was submitted 27.02.2026; approved after reviewing 10.03.2026; accepted for publication 16.03.2026.
FISHERIES, AQUACULTURE AND INDUSTRIAL FISHERIES
Original article
Study of the helminth fauna of some hydrobionts in Gornostay Bay (Sea of Japan)
Konstantin A. Afanasyev
Far Eastern State Technical Fisheries University, Vladivostok, Russia,
Student of the Department of Aquatic Bioresources and Aquaculture, Chairman of the Student Scientific Society; SPIN-code: 9271-4762, AuthorID: 1290474
e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it., ORCID: 0009-0002-5009-727X
Konstantin S. Vainutis
Far Eastern State Technical Fisheries University; A. V. Zhirmunsky National Scientific Center of Marine Biology FEB RAS, Vladivostok, Russia,
PhD, Associate Professor of the Department of Aquatic Bioresources and Aquaculture, Chairman of the Council of Young Scientists at FESTFU, Member of the Parasitological Society of the Russian Academy of Sciences, Member of the Vladivostok public foundation for development of genetics, SPIN-code: 5855-6028, AuthorID: 1025933, ScopusID: 57201490910, ResearcherID: E-2919-2018, ColabID: R-38611-0C78A-ON34E
e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it., ORCID: 0000-0002-0650-6374
Alexey A. Bukhovets
Far Eastern State Technical Fisheries University, Vladivostok, Russia,
Student of the Department of Aquatic Bioresources and Aquaculture, Member of the Student Scientific Society
e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it., ORCID: 0009-0007-6817-943X
Abstract. The helminth fauna of some hydrobionts of the Gornostay Bay was studied. The study revealed a diverse parasitic composition in the studied fish species. In M. brandti, cestodes Eubothrium sp., nematodes Anisakis simplex, Hysterothylacium gadi aduncum, acanthocephalans Echinorhynchus gadi, and trematodes Derogenes sp. were diagnosed. In T. chalcogramma, nematodes A. simplex, cestodes Nybelinia surmenicola, trematodes Allonematobothrium megalaspi, and acanthocephalans E. gadi and Corynosoma strumosum were detected. In C. pallasii, the nematodes Skrjabinisakis schupakovi and A. simplex were identified. In immature individuals of Pholis dolichogaster, trematodes were detected, which could not be classified due to significant tissue damage and will be referred to as Trematoda sp. The highest diversity of helminth species is observed in H. sanguineus: metacercariae of the trematode C. fluviocinguli II, larval stages of the nematode Heliconema anguillae, and possibly juvenile individuals of the nematode family Anisakidae.
Keywords: hydrobiont helminths, helminth fauna, parasit fauna, Sea of Japan, Bukh Горностай, Nematoda, Cestoda, Trematoda, Acanthocephala, Cercaria fluviocinguli II
Acknowledgments: express our deep gratitude to the students of the Far Eastern State Technical Fisheries University, Vladimir S. Fominov, for exceptional assistance in identifying fish helminths, and to Ivan V. Borushevsky for his invaluable help in collecting and processing the material.
Funding: the study was carried out within the framework of research project No. 896/2025 «Investigation of the parasite fauna of hydrobionts of the Gornostay Bay of the Sea of Japan », funded by a student grant from the Far Eastern State Technical Fisheries University.
© Afanasyev K. A., Vainutis K. S., Bukhovets A. A., 2026
For citation: Afanasyev K. A., Vainutis K. S., Bukhovets A. A. Study of the helminth fauna of some hydrobionts in Gornostay Bay (Sea of Japan). Scientific Journal of the Far Eastern State Technical Fisheries University. 2026; 75(1):118–127. (In Russ.).
The article was submitted 24.11.2025; approved after reviewing 11.12.2025; accepted for publication 20.12.2025.
Original article
Feeding characteristics of young ship sturgeon (Acipenser nudiventris) in the early stages of development when raised under controlled conditions
Victoria Bekbergenova
Don State Technical University, Rostov-on-Don, Russia,
Senior Lecturer of the Department of Technical Means of Aquaculture
e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it., ORCID: 00000-0001-8595-3545
Alexey A. Vasiliev
Moscow State Academy of Veterinary Medicine and Biotechnology – MBA named after K. I. Scriabin, Moscow, Russia,
Doctor of Agricultural Sciences, Professor, Dean of the Faculty of Zootechnics and Agribusiness, Head of the Department of Feeding and Feed Production, SPIN code: 7833-2852, AuthorID: 683295
e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it., ORCID: 0000-0003-0067-7719
Elena I. Shilo
Moscow State Academy of Veterinary Medicine and Biotechnology – MBA named after K. I. Scriabin, Moscow, Russia,
PhD in Biological Sciences, Associate Professor of the Department of Feeding and Feed Production, SPIN code: 8363-2802, AuthorID: 794932
e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
Yulia A. Guseva
Moscow State Academy of Veterinary Medicine and Biotechnology – MBA named after K. I. Scriabin, Moscow, Russia,
Doctor of Agricultural Sciences, Associate Professor, Professor of the Department of Feeding and Feed Production, SPIN code: 4091-2052, AuthorID: 717272
e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it., ORCID: 0000-0002-9604-4280
Dinara S. Paliy
Southern Scientific Center of the Russian Academy of Sciences, Rostov-on-Don, Russia,
Researcher at the Laboratory of Integrated Aquaculture Technologies
e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
Abstract. The paper presents data on the behavioral characteristics of the pre-larvae of the ship sturgeon, as well as a new scheme for transitioning to active feeding, which has increased survival rates to 97%. The article presents a method for comprehensive assessment of the condition and behavior of pre-larvae for timely initiation of feeding. The high food plasticity of juveniles has been experimentally confirmed. The effectiveness of a modified feeding regimen using frozen chironomid larvae and intensive feeding has been demonstrated, which has reduced the time required to reach a weight of 3 g from 60 to 30 days. Given the changing temperature regime of water bodies in southern Russia and the high gonadosomatic index, the North Caspian population of the ship sturgeon is recommended for introduction into aquaculture. Due to its high food plasticity, the ship sturgeon can be used as a bio-meliorator in pond polyculture (as an alternative to black carp) with subsequent commercial production.
Keywords: ship sturgeon, dietary plasticity, aquaculture, biomelioration, live foods, temperature tolerance
© Bekbergenova V., Vasiliev A. A., Shilo E. I., Guseva Yu. A., Paliy D. S. , 2026
For citation: Bekbergenova V., Vasiliev A. A., Shilo E. I., Guseva Yu. A., Paliy D. S. Feeding characteristics of young ship sturgeon (Acipenser nudiventris) in the early stages of development when raised under controlled conditions. Scientific Journal of the Far Eastern State Technical Fisheries University. 2026; 75(1):128–138. (In Russ.)..
The article was submitted 17.02.2026; approved after reviewing 24.02.2026; accepted for publication 06.03.2026.
Original article
Use of imported and domestic feed for growing juvenile chum salmon at the «Ai SFF» (Sakhalin Island)
Konstantin O. Burdinsky
LLC Okean, SFBP «Ai», Sakhalin Region, Dolinsky District, Sovetskoye Village, Russia
Director of SFBP «Ai».
Inga V. Matrosova
Far Eastern State Technical Fisheries University, Vladivostok, Russia,
PhD in Biological Sciences, Associate Professor, Head of the Department of Water Bioresources and Aquaculture, ORCID: 0000-0001-5316-4955, Scopus AuthorID: 14025605900
e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
Abstract. Currently, the development of competitive domestic compound feed that meets the nutritional needs of fish in various nutrients, macro- and microelements, which determine the survival rate of individuals in the early stages of ontogenesis and their subsequent vitality, is an urgent task. The object of this study was juvenile chum salmon. The aim of this study was to compare the main fisheries and biological indicators of juvenile chum salmon grown in the conditions of the «SFBP Ai» using domestic and imported compound feed. The juveniles were fed with Aller Aqua (Denmark) and Aquatech (Russia) starter feeds. The Russian and imported feed mixtures proved to be effective in the cultivation of chum salmon in the conditions of the SFBP «Ai», as evidenced by high growth rates, survival rates (99-99.7%) and low feed coefficients (0.6-0.8). The conducted studies will allow to specify the biometric standards and optimize the process of chum salmon cultivation in the conditions of the SFBP «Ai».
Keywords: chum salmon, Sakhalin Island, SFBP «Ai», compound feed, weight gain, feed coefficient, Aller Aqua, Aquatech
© Burdinsky K. O., Matrosova I. V., 2026
For citation: Burdinsky K. O., Matrosova I. V. Use of imported and domestic feed in the cultivation of juvenile chum salmon in the conditions of the «SFF Ai» (Sakhalin Island). Scientific Journal of the Far Eastern State Technical Fisheries University. 2026; 75(1):139–146. (In Russ.).
The article was submitted 18.02.2026; approved after reviewing 21.02.2026; accepted for publication 06.03.2026.
Original article
Studies of long-term cyclic strength of polypropylene-polyethylene composite yarns
Ksenia A. Gribova
Far Eastern State Technical Fisheries University, Vladivostok, Russia,
Senior Lecturer of the Department of Industrial Fisheries
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Evgeny V. Osipov
Far Eastern State Technical Fisheries University, Vladivostok, Russia,
PhD, Associate Professor, Associate Professor of the Department of Industrial Fisheries
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Abstract. This paper presents the results of a study comparing the long-term strength of different polypropylene-ethylene (PP/PE) composite fibers with nylon (PA) under cyclic loading. The results show that the long-term strength of PP/PE fibers is higher than that of nylon at 50 %, but the strength at 75 % is influenced by die characteristics. Single 0.54 mm and 0,28 mm filaments have three to three and a half times the strength of complex yarns consisting of four filaments, but the long-time strength at 50 % is virtually the same for all PP/PE types.
Keywords: long-term cyclic strength, composites, fishing gear, aquaculture structures
© Gribova K. A., Osipov E. V., 2026
For citation: Gribova K. A., Osipov E. V. Studies of long-term cyclic strength of polypropylene-polyethylene composite yarns. Scientific Journal of the Far Eastern State Technical Fisheries University. 2026; 75(1):147–153. (In Russ.).
The article was submitted 18.02.2026; approved after reviewing 03.03.2026; accepted for publication 11.03.2026.
Original article
Assessment of fish catch during amateur fishing in the sea waters of Primorsky Krai in 2025
Denis V. Izmyatinsky
Russian Federal Research Institute of Fisheries and Oceanography (VNIRO), Pacific Branch (TINRO), Vladivostok, Russia
PhD in Biological Sciences, Leading Researcher at the Laboratory of Biological Resources of the Far Eastern and Arctic Seas, ORCID: 0000-0001-5167-330X
e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it., ORCID: 0000-0001-5167-330X
Nadezhda L. Aseeva
Russian Federal Research Institute of Fisheries and Oceanography (VNIRO), Pacific Branch (TINRO), Vladivostok, Russia
PhD in Biological Sciences, Leading Researcher at the Laboratory of Biological Resources of the Far Eastern and Arctic Seas, ORCID: 0009-0007-0633-6110
e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it., ORCID: 0009-0007-0633-6110
Abstract. The work is based on data from amateur fishing carried out with fishing gear from stationary locations (without using the effect of moving watercraft). There are 235 amateur fishing points in Primorsky Krai: 190 in Peter the Great Bay and 45 in northern Primorye. The number of amateurs varied by season: 3,717 in winter, 674 in spring, 2,361 in summer, and 462 in autumn. The total amateur catch of marine fish for the year amounted to 1.8 thousand tons. By biomass, in the annual amateur catch flounders (42.7%), pacific herring (14.7%), walleye pollock (13.5%) and saffron cod (11.5%) were dominated.
Keywords: amateur fishing, Primorsky Krai, amateur fisherman, fishing gear, sea waters, fishing point, fishing season, catch biomass
© Izmyatinsky D. V., Aseeva N. L. , 2026
For citation: Izmyatinsky D. V., Aseeva N. L. Assessment of fish catch during amateur fishing in the sea waters of Primorsky Krai in 2025. Scientific Journal of the Far Eastern State Technical Fisheries University. 2026; 75(1):154–165. (In Russ.).
The article was submitted 16.02.2026; approved after reviewing 03.03.2026; accepted for publication 11.03.2026.
Original article
Ichthyofauna, production of zooplankton and zoobenthos of the Aldan river system
Alexander F. Kirillov
Russian Federal Research Institute of Fisheries and Oceanography (VNIRO), Yakut Branch (YakutskNIRO), Yakutsk, Russia
PhD in Biological Sciences, leading Researcher, SPIN-code: 6437-6364, AuthorID: 856924
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Elena S. Gorokhova
Russian Federal Research Institute of Fisheries and Oceanography (VNIRO), Yakut Branch (YakutskNIRO), Yakutsk, Russia
Head of the laboratory, SPIN-код: 5618-8807, AuthorID: 927560
e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
Abstract. The ichthyofauna of the Aldan basin comprises 8 orders, 12 families, and 30 species with subspecies, including: high value (Siberian sturgeon) and value species (muksun, Arctic omul, nelma, cisco and broad whitefish). The species composition of fish in the upper reaches of the Aldan basin is quantitatively predominated by the representatives of the boreal foothill and boreal plain faunistic complexes. Grayling and lenok predominate in the ichthyofauna (more than 90%). The middle and lower reaches are predominated by the fish species of the boreal plain faunistic complex, primarily cypriniformes. Salmonids representatives of the ichthyofauna lead through rare and limited representatives of the Arctic freshwater complex - nelma, omul, muksun, broad whitefish, vendace, and chum salmon. In the Aldan basin, 44 species of zooplankton organisms were recorded; in addition, copepods were represented by immature individuals. Rotifers have the greatest species diversity, determining the maximum values of abundance. Cladocera (Bosmina longispina and Bosmina longirostris) make a significant share of the biomass (41%). Copepods account for 16% of the total biomass and are represented exclusively by immature copepod stages and larval nauplii. The number of organisms and their biomass increase from upstream to downstream, with the lowest values in the channel part of the river. The distribution of zooplankton in the Aldan basin is primarily related to the drift of organisms, which increases during the spring and summer-fall floods. Zoobenthos is represented by 13 groups of organisms. The greatest number of species was found among dipterans (27), followed by caddisflies (14), mayflies (13), and stoneflies (6). Dipteran larvae, which accounted for 66% of the total abundance, were dominant in numbers in the lower and middle reaches. Oligochaetes dominated in biomass, accounting for 64% of the total biomass. In the upper reaches, chironomid larvae dominated in numbers, accounting for up to 43.2%. Caddisflies and mayflies dominated in biomass, accounting for up to 53.6% of the total biomass. Zoobenthos organisms predominate in the middle reaches’ basin in numbers and biomass, especially in biomass. The distribution of zoobenthos is largely related to the size of their habitats; in this regard, the length, and thus the area, of the middle reaches (1131 km) is 1.54 times greater than that of the upper reaches (735 km) and 2.78 times greater than that of the lower reaches (407 km). The biomass and abundance of zooplankton and benthos organisms in the Aldan basin is 24.12 mg/m3 – 1359 specimens/m3 and 8.88 g/m2 – 634 specimens/ m2 on average for all watercourses.
Keywords: Aldan River basin, ichthyofauna, zooplankton, zoobenthos, species diversity, abundance, biomass
© Kirillov A. F., Gorokhova E. S., 2026
For citation: Kirillov A. F., Gorokhova E. S. Ichthyofauna, production of zooplankton and zoobenthos of the Aldan river system. Scientific Journal of the Far Eastern State Technical Fisheries University. 2026; 75(1):166–175. (In Russ.).
The article was submitted 09.02.2026; approved after reviewing 25.02.2026; accepted for publication 03.03.2026.
Original article
Study of hydrodynamics and shape of Trawl Cod-end
Danil A. Krasauskas
Kaliningrad State Technical University, Kaliningrad, Russia
Student of the Department of Industrial Fisheries
Gleb A. Eremeev
Kaliningrad State Technical University, Kaliningrad, Russia
Student of the Department of Industrial Fisheries
Aleksandr A. Nedostup
Kaliningrad State Technical University, Kaliningrad, Russia
PhD in Technical Sciences, Associate Professor, Head of the Department of Industrial Fisheries
e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
Karina V. Konovalova
Kaliningrad State Technical University, Kaliningrad, Russia
Specialist of the Department of Industrial Fisheries
Pavel V. Nasenkov
Kaliningrad State Technical University, Kaliningrad, Russia
Specialist of the Department of Industrial Fisheries
Abstract. The paper presents the results of a comprehensive study of the influence of the geometric shape of a trawl cod-end on its hydrodynamic characteristics. The research included both theoretical analysis and experimental tests in the Fishiring Service hydrocanal (Kaliningrad) using strain gauges.
The object of the study was a trawl cod-end of various geometric configurations. The subject of the research was the relationships between the geometric parameters of the cod-end and its hydrodynamic resistance.
During the experiments conducted under controlled conditions, quantitative dependencies were established between the main design parameters and the resistance of the cod-end in the water flow. Particular attention was paid to the analysis of the influence of the cod-end shape (cylindrical and pear-shaped) on its performance characteristics.
Keywords: cod-end, hydrodynamics, cod-end, hydrocanal, experiment
Funding: the study was carried out as part of the state assignment on the topic «Development of a wireless system for monitoring trawl parameters with elements of artificial intelligence «Autotrawl».
© Krasauskas D. A., Eremeev G. A., Nedostup A. A., Konovalova K. V., Nasenkov P. V., 2026
For citation: Krasauskas D. A., Eremeev G. A., Nedostup A. A., Konovalova K. V., Nasenkov P. V. Study of hydrodynamics and shape of trawl cod-end. Scientific Journal of the Far Eastern State Technical Fisheries University. 2026; 75(1):176–185. (In Russ.).
The article was submitted 08.12.2025; approved after reviewing 20.01.2026; accepted for publication 20.01.2026.
Original article
Analysis of the impact of stock and catch dynamics of the Japanese sardine on Russia's food security in 2020–2025
Vasilii V. Kudakaev
Far Eastern State Technical Fisheries University, Vladivostok, Russia
PhD, Associate Professor, Associate Professor of the Department of Industrial Fisheries
e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
Abstract. This article analyzes the impact of stock dynamics and catch of the Japanese sardine (Sardinops melanostictus) on the state of food security of the Russian Federation for the period 2020–2025. Based on official catch statistics (Form No. 1-P) and scientific recommendations, actual harvest trends were investigated, including operational data as of December 8, 2025. The work assesses the contribution of this species to achieving the strategic indicators of the Food Security Doctrine. It is shown that the active stock recovery phase (2020–2024), marked by record catches, directly contributed to meeting the target for self-sufficiency in fish. The situation as of December 8, 2025, characterized by a sharp catch decline to 56 880 tons against a record recommended volume, clearly confirms the materialization of the climatic and oceanological risks outlined in the Doctrine. Conclusions are drawn on the need to develop a system for operational monitoring and flexible planning to enhance the resilience of the food system.
Keywords: food security, Food security doctrine, Japanese sardine, Sardinops melanostictus, recommended catch, catch dynamics, catch statistics, fishing situation
© Kudakaev V. V. , 2026
For citation: Kudakaev V. V. Analysis of the impact of stock and catch dynamics of the Japanese sardine on Russia's food security in 2020–2025. Scientific Journal of the Far Eastern State Technical Fisheries University. 2026; 75(1):186–193. (In Russ.).
The article was submitted 24.01.2026; approved after reviewing 10.02.2026; accepted for publication 10.02.2026.
Original article
On the cultivation of Nile tilapia (Oreochromis niloticus) in an aquaponic system
Inga V. Matrosova
Far Eastern State Technical Fisheries University, Vladivostok, Russia
PhD in Biological Sciences, Associate Professor, Head of the Department of Aquatic Bioresources and Aquaculture, ORCID: 0000-0001-5316-4955
e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
Olga V. Linnic
Border Department of the Federal Security Service of Russia in Primorsky Krai, Nakhodka, Russia
State Inspector of the Russian Federation for State Control in the Field of Protection of Marine Biological Resources of the Service in Nakhodka
Abstract. The main objective of aquaponics in Russia is to ensure food security, which involves the year-round production of fish and plant products on a single site. The purpose of this study was to consider the possibility of creating a facility for growing Nile tilapia (Oreochromis niloticus) using an aquaponic system in the Republic of Tatarstan. The literature on the biology and breeding of tilapia was studied. The results of the work of fish farms were taken into account. The fisheries and biological justification and hydraulic engineering constructions for the creation of an UZW in the research area were carried out based on existing guidelines and instructions. A fisheries calculation, equipment calculation, water flow calculation, and a review of the biological efficiency of artificial breeding using an aquaponic system were performed. Growing tilapia using an aquaponic system will allow for the production of environmentally friendly fish and plant products, which is a step towards sustainable, environmentally friendly, and technologically independent agriculture. The results of this work will be useful for aquaculture specialists in planning and organizing fish farming.
Keywords: Nile tilapia, Lactuca sativa L., 1753 (leaf lettuce), biotechnical standards, fish farming calculation, production plan, Tatarstan, UZV, aquaponics, floating platforms
© Matrosova I. V., Linnic O. V., 2026
For citation: Matrosova I. V., Linnic O. V. On the cultivation of Nile tilapia (Oreochromis niloticus) in an aquaponic system. Scientific Journal of the Far Eastern State Technical Fisheries University. 2026; 75 (1):194–203. (In Russ.).
The article was submitted 19.02.2026; approved after reviewing 03.03.2026; accepted for publication 10.03.2026.
Original article
The influence of the exclusion of marine mammals on the catchability of a two-trap fixed seine in the Pacific salmon (Oncorhynchus) fishery in the area of Cape Okno, Korfa Bay, Bering Sea
Dmitry G. Naumov
Association of Coastal Fisheries and Mariculture «PRIMA», Vladivostok, Russia
Сonsultant on Intensification of Fisheries
e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
Artur A. Maiss
Association of Coastal Fisheries and Mariculture «PRIMA»; Far Eastern State Technical Fisheries University, Vladivostok, Russia
Senior Lecturer of the Department of Industrial Fisheries
e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it., ORCID: 0009-0004-5432-397X
Roman O. Shcuratov
Far Eastern State Technical Fisheries University, Vladivostok, Russia
Student of the Department of Industrial Fisheries
Abstract. This article presents a study based on data collected by the authors during marine mammal exclusion operations in the Pacific salmon (Oncorhynchus) fishery using a two-trap fixed seine near Cape Okno in Korfa Bay, Bering Sea. The ratio of catches between the experimental and control traps demonstrates that marine mammal exclusion operations can significantly improve the catchability of fixed seines in the Pacific salmon fishery. The marine mammal exclusion zone should primarily encompass the critical area near the flaps of the fixed seine and the trap itself, and may not include the entire wing.
Keywords: Phoca largha, spotted seal, marine mammal parasitism, marine mammal predation, marine mammal exclusion operations, marine mammal activity, Pacific salmon fishery, fixed sea seine
© Naumov D. G., Maiss A. A., Shkuratov R. O. , 2026
For citation: Naumov D. G., Maiss A. A., Shkuratov R. O. The influence of the exclusion of marine mammals on the catchability of a two-trap fixed seine in the Pacific salmon (Oncorhynchus) fishery in the area of Cape Okno, Korfa Bay, Bering Sea. Scientific Journal of the Far Eastern State Technical Fisheries University. 2026; 75(1):204–213. (In Russ.).
The article was submitted 13.12.2025; approved after reviewing 20.02.2026; accepted for publication 03.03.2026.
Original article
Studies of thrust characteristics of the «electric motor–transmission–propeller» system for a commercial catamaran
Aleksandr A. Nedostup
Kaliningrad State Technical University, Kaliningrad, Russia
PhD, Associate Professor, Head of the Department of Commercial Fisheries
e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
Egor I. Sergeev
Kaliningrad State Technical University, Kaliningrad, Russia
Postgraduate student of the Department of Commercial Fisheries
e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
Pavel V. Nasenkov
Kaliningrad State Technical University, Kaliningrad, Russia
Senior Lecturer of the Department of Commercial Fisheries
e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
Karina V. Konovalova
Kaliningrad State Technical University, Kaliningrad, Russia
Leading Engineer of the laboratories of the Department of Commercial Fisheries
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Alexey O. Razhev
Kaliningrad State Technical University, Kaliningrad, Russia
PhD, Leading Researcher of R&D Department of Research Management
e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
Artur A. Voloshin
Kaliningrad State Technical University, Kaliningrad, Russia
Postgraduate student of the Department of Commercial Fisheries
e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
Abstract. The article focuses on the use of an electric drive for a fishing catamaran. The thrust characteristic of the «electric motor-transmission-propeller» system for a fishing catamaran is a set of dependencies showing traction power, speed, battery capacity consumption and other system parameters depending on the thrust force. This is a graphical representation that is used to evaluate the operational qualities of fishing vessels, and also helps to choose an effective model depending on the operating conditions of industrial fishing gear. The traction characteristic of the «electric motor-transmission-propeller system» system shows how the traction force changes depending on the speed of movement. Maximum thrust is required on moored fishing vessels, and the thrust on moored vessels is Z0. The dependence graph is presented as Z0=f(ηЭД,ηпер,η,NЭД,NЭ,γ,ζ,ξ), where ηЭД – is the power efficiency of the electric motor; ηтр – power efficiency of the transmission; η – efficiency of the system «electric motor–transmission–propeller system»; NЭД – is the power of the electric motor; NЭ – electrical in circuit power; γ – is a dimensionless indicator of the characteristics of the propeller; ζ – is a dimensionless indicator of the power use of an electric motor; ξ=nх/nн – is the dimensionless ratio of the number of revolutions of an electric motor without load nх to the number of revolutions of an electric motor with load nн. To study the thrust characteristics of the «electric motor–transmission–propeller» system of a commercial catamaran, a system of direct inclusion of a propeller motor in the shaft was used. The thrust characteristic of the «electric motor-transmission-propeller system» helps determine how effectively an electric powered fishing catamaran will work in specific conditions with commercial fishing gear, and allows you to select an effective model or adjust it for maximum performance. This indicator was calculated and determined experimentally during thrust tests of an experimental platform developed at the FSBEI of HE «KSTU». Experiments with self-made experimental platform staff and students were conducted in two experimental pools of the FSBEI of HE «KSTU».
Keywords: thrust, electric motor–shaft–propeller, experiment, pool, experimental platform
Funding: the study was carried out as part of the state assignment on the topic «Development of wireless system of trawl parameters control with elements of artificial intelligence «Autotrawl».
© Nedostup A. A., Sergeev E. I., Nasenkov P. V., Konovalova K. V., Razhev A. O., Voloshin A. A., 2026
For citation: Nedostup A. A., Sergeev E. I., Nasenkov P. V., Konovalova K. V., Razhev A. O., Voloshin A. A. Studies of thrust characteristics of the «electric motor–transmission–propeller» system for a commercial catamaran. Scientific Journal of the Far Eastern State Technical Fisheries University. 2026; 75(1):214–229. (In Russ.).
The article was submitted 11.02.2026; approved after reviewing 25.02.2026; accepted for publication 03.03.2026.
Original article
Modulation of intestinal microbiota and fish-biological indicators of rainbow trout (Oncorhynchus Mykiss) with the use of the probiotic «Celobacterin+» in recirculating aquaculture systems
Layth M. R. Rashid
St. Petersburg State Agrarian University, St. Petersburg, Russia,
postgraduate student of the Department of Aquatic Bioresources and Aquaculture
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Vladimir S. Turitsin
St. Petersburg State Agrarian University, St. Petersburg, Russia,
PhD in Biological Sciences, Associate Professor of the Department of Aquatic Bioresources and Aquaculture
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Abstract. In intensive aquaculture, especially in the cultivation of valuable species such as rainbow trout (Oncorhynchus mykiss), there is a growing need for effective and safe methods to maintain fish health and increase productivity. Probiotics are a promising alternative to antibiotics for modulating the intestinal microbiota, stimulating immunity, and improving fish-biological performance. This study evaluated the effect of the domestic probiotic preparation "Celobacterin+" based on the Enterococcus faecium strain on the growth, survival, feed conversion ratio, and intestinal microbiota composition of rainbow trout reared in a recirculating aquaculture system (RAS). The inclusion of the probiotic in the feed at a dosage of 1.0 g/kg contributed to a significant increase in the average weight of fish by 15.7%, an improvement in the feed conversion ratio by 12.5%, and an increase in survival to 98%. Microbiological analysis showed an increase in the number of lactic acid bacteria and the suppression of the growth of opportunistic enterobacteria, which indicates a positive modulation of the intestinal microbiocenosis. The results obtained confirm the high efficiency and prospects of using the preparation "Celobacterin+" in industrial trout farming..
Keywords: rainbow trout, Oncorhynchus mykiss, aquaculture, probiotics, Enterococcus faecium, Celobacterin+, intestinal microbiota, fish-biological indicators, recirculating aquaculture systems
© Rashid L. M. R., Turitsin V. S., 2026
For citation: Rashid L. M. R., Turitsin V. S. Modulation of intestinal microbiota and fish-biological indicators of rainbow trout (Oncorhynchus Mykiss) with the use of the probiotic «Celobacterin+» in recirculating aquaculture systems. Scientific Journal of the Far Easter State Technical Fisheries University. 2026; 75(1):230–236. (In Russ.).
The article was submitted 28.02.2026; approved after reviewing 11.03.2026; accepted for publication 17.03.2026.
Original article
Some biological indicators of the gray sea urchin Strongylocentrotus intermedius in the Aleut Bay (Sea of Japan)
Marina M. Sergeeva
Far Eastern State Technical Fisheries University, Vladivostok, Russia,
Senior Lecturer of the Department of Water Bioresources and Aquaculture
e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it., ORCID: 0000-0001-8675-9138
Abstract. There are approximately 940 species of sea urchins in the world. Of these, 20 occur in the Russian seas and coastal ocean waters. The grey sea urchin Strongylocentrotus intermedius (Agassiz, 1863) is an inhabitant of almost all seas. The paper presents data on some features of the biology of the gray sea urchin of the Aleutian Bay in 2024. Information on the size, mass, age composition, and sex ratio of this species of echinoderms is presented.
Keywords: gray sea urchin, Aleut Bay, Sea of Japan, size, mass, age composition, and sex ratio
© Sergeeva M. M., 2026
For citation: Sergeeva M. M. Some biological indicators of the gray sea urchin Strongylocentrotus intermedius in the Aleut Bay (Sea of Japan). Scientific Journal of the Far Eastern State Technical Fisheries University. 2026; 75(1):237–241. (In Russ.).
The article was submitted 17.02.2026; approved after reviewing 03.03.2026; accepted for publication 03.03.2026
SHIP POWER PLANTS AND THEIR ELEMENTS (MAIN AND AUXILIARY)
Original article
Development of an algorithm for identifying a malfunction of a temperature information-measuring channel
Aleksandr A. Zhitnikov
Kamchatka State Technical University, Petropavlovsk-Kamchatsky, Russia,
Graduate student of the Department of Control Systems
e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it., ORCID: 0009-0004-5002-8279
Alexey A. Marchenko
Kamchatka State Technical University, Petropavlovsk-Kamchatsky, Russia,
PhD in Engineering Sciences, Head of the Department of Control Systems
e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
Svetlana V. Chebanyuk
Kamchatka State Technical University, Petropavlovsk-Kamchatsky, Russia,
Associate Professor of the Department of Control Systems
e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
Abstract. This article presents the development and implementation of a fault identification algorithm for a temperature data channel. The reliability of automated control systems on ships critically depends on the integrity of sensor data. Temperature readings define safe operating limits for diesel generators, boilers, turbines, and auxiliary systems. However, measurement channels are exposed to harsh marine conditions, including vibration, humidity, and salt fog. This can lead to various faults, such as signal distortion, contact bounce, cable abrasion, moisture ingress, or partial line breaks. These anomalies can lead to false trips or, conversely, to missed detection of real faults. This creates significant operational and safety risks. To address this problem, the author presents an algorithm that uses a physical approach and analyzes the transient response of the temperature measurement instrument. Specifically, it calculates the maximum allowable rate of temperature change per second. The algorithm continuously compares the absolute difference of successive temperature readings with this dynamic threshold. The solution implemented in CODESYS 2.3 requires no hardware redundancy and places minimal computational load on programmable logic controllers. Simulation verification using a linearly increasing temperature profile demonstrates the algorithm's ability to reliably distinguish normal operating transients from abnormal signal behavior. When a threshold is exceeded, an "ALARM" flag is activated, which can be used to notify the operator or prevent spurious shutdown commands.
Keywords: temperature sensor, information-measuring system, control system, algorithm, emergency stop, technological process
© Zhitnikov A. A., Marchenko A. A., Chebnyuk S. V., 2026
For citation: Zhitnikov A. A., Marchenko A. A., Chebnyuk S. V. Development of an algorithm for identifying a malfunction of a temperature information-measuring channel. Scientific Journal of the Far Eastern State Technical Fisheries University. 2026; 75(1):242–252. (In Russ.).
The article was submitted 21.01.2026; approved after reviewing 13.02.2026; accepted for publication 20.02.2026.
Original article
Functional-modular architecture of the self-diagnostics unit for a ship power plant and the principles of its integration into the control system
Denis V. Kaitan
Far Eastern Federal University, Vladivostok, Russia,
Рostgraduate student, scientific specialty: Ship power plants and their elements (main and auxiliary)
e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
Alexandr N. Minaev
Far Eastern Federal University, Vladivostok, Russia,
Doctor of Technical Sciences, Professor, Professor of the Department of Mechanical Engineering, Marine Engineering and Transport of the Polytechnic Institute
e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
Abstract. Enhancing the autonomy and reliability of ship power plants (MPP) is a critically important task in modern shipbuilding. This article presents the results of developing a functional-modular architecture for a specialized self-diagnostics unit (SDU) designed for integration into an existing MPP control system. A three-level SDU architecture is proposed, comprising a data acquisition and primary processing module, an intelligent analysis module, and a decision-making and reporting module. The principles of integrating the unit with the control system based on standard industrial networks (CAN, Ethernet) and protocols (OPC UA) are described in detail. Calculations of the load capacity of the network interface and an algorithm for diagnostic data compression are provided. A mathematical model for assessing the credibility of diagnostic signals using reliability theory has been developed. The results of simulation modeling implemented in the MATLAB/Simulink environment demonstrate the effectiveness of the proposed architecture in diagnosing a turbocharger malfunction, showing a 25% reduction in the time to detect a defect compared to a traditional alarm system. The proposed solutions allow for the creation of a scalable and fault-tolerant SDU capable of operating in real-time conditions.
Keywords: ship power plant, self-diagnostics, functional-modular architecture, control system, integration, industrial networks, signal credibility
© Kaitan D. V., Minaev A. N., 2026
For citation: Kaitan D. V., Minaev A. N. Functional-modular architecture of the self-diagnostics unit for a ship power plant and the principles of its integration into the control system. Scientific Journal of the Far Eastern State Technical Fisheries University. 2026; 75(1):253–261. (In Russ.).
The article was submitted 11.12.2025; approved after reviewing 20.01.2026; accepted for publication 27.01.2026.