«Scientific Journal of the Far Eastern State Technical Fisheries University». Vol. 76. No 2. 2026
FOOD SYSTEMS
Original article
The effect of carbon dioxide on the quality of rabbit meat during cooling
Nursultan E. Aldamatov
Russian Timiryazev State Agrarian University – Moscow Timiryazev Agricultural Academy, Moscow, Russia,
Postgraduate of the Department of Processes and Devices of Processing Industries
e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it., ORCID: 0009-0005-1492-4508
Sergey A. Bredihin
Russian Timiryazev State Agrarian University – Moscow Timiryazev Agricultural Academy, Moscow, Russia,
Doctor of Technical Sciences, Professor of the Department of Processes and Devices of Processing Industries
e-mail:This email address is being protected from spambots. You need JavaScript enabled to view it., ORCID: 0000-0002-6898-0389
Alexander Yu. Nuzhdenko
Kriofrost Engineering LLC, Moscow, Russia,
Engineer-designer
e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
Abstract. Rabbit meat is a valuable dietary product; however, its short shelf life in a chilled state limits the possibilities of its distribution. The aim of this work was to develop and evaluate the efficiency of refrigeration technology for rabbit carcasses of the «Soviet Chinchilla» breed using gaseous carbon dioxide to extend shelf life. The objects of the study were rabbit carcasses weighing 1.3 ± 0.15 kg, selected after completion of the processing stage on the production line. The test samples were cooled with gaseous CO₂ obtained by sublimation of dry ice in a specially designed apparatus with a closed recirculation scheme of gas-air medium movement, while control samples were cooled by the conventional air method at 0 °C until the temperature in the muscle core reached the range of 0÷4 °C. The apparatus can also be used without CO₂ supply, which makes it suitable for standard air cooling. A comprehensive quality assessment of the meat was carried out based on the dynamics of active acidity and water-holding capacity throughout the entire period of refrigerated storage. It was established that CO₂ treatment promotes a more pronounced decrease in pH during the first day of storage, slowing down glycolytic processes and the rigor mortis phase. The dynamics of water-holding capacity correlated with changes in acidity, which confirms the retardation of autolytic changes in muscle tissue. The experimental data obtained indicate that the proposed method ensures the preservation of high organoleptic characteristics of the product over a longer period compared to air cooling. The obtained results substantiate the prospects of implementing the developed technology under industrial conditions to extend the shelf life of chilled rabbit meat while preserving its high quality characteristics and dietary properties.
Keywords: rabbit meat, chilled meat, shelf life, carbon dioxide, active acidity (pH), water-holding capacity, meat quality
© Aldamatov N. E., Bredihin S. A., Nuzhdenko A. Yu., 2026
For citation: Aldamatov N. E., Bredihin S. A., Nuzhdenko A. Yu. The effect of carbon dioxide on the quality of rabbit meat during cooling. Scientific Journal of the Far Eastern State Technical Fisheries University. 2026; 76(2):8–15. (In Russ.).
The article was submitted 12.05.2026; approved after reviewing 21.05.2026; accepted for publication 21.05.2026.
Review article
Appraisal of food safety culture assessment methods in the fishery processing industry: results and methodological conclusions
Elena V. Glebova
Far Eastern State Technical Fisheries University, Vladivostok, Russia,
PhD in Engineering Sciences, Associate Professor, Associate Professor of the Department of Technical Systems Management, 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 presents the results of a pilot testing of the author's food safety culture (FSC) assessment methodology developed based on the five key GFSI elements. The study was conducted at three fish processing enterprises in Primorsky Krai (conventional names: Enterprise 1, Enterprise 2, Enterprise 3). A mixed-methods design was employed: 5-point Likert scale survey (n=127), focus groups (6 groups, 42 participants), structured observation using a checklist (12 production zones, 48 measurements), and document analysis. The obtained data allowed verification of the methodology's operational feasibility, identification of industry-specific perceptions of FSC elements, and formulation of recommendations for adapting assessment tools. It was found that the most vulnerable FSC elements at the pilot sites were "Adaptability" (mean score 2.8) and "Risk Awareness" (3.1), while "Mission and Values" demonstrated the highest maturity (4.2). A revised version of the methodology is proposed, featuring a streamlined survey module (7 questions) and integrated monitoring of behavioral indicators.
Keywords: food safety culture, fish processing industry, GFSI, GOST R ISO 22000-2019, elements of food safety culture, maturity level assessment, pilot study
© Glebova E. V., 2026
For citation: Glebova E. V. Appraisal of food safety culture assessment methods in the fishery processing industry: results and methodological conclusions. Scientific Journal of the Far Eastern State Technical Fisheries University. 2026; 76(2):16–24. (In Russ.).
The article was submitted 06.04.2026; approved after reviewing 12.05.2026; accepted for publication 12.05.2026.
Original article
Application of the Harrington desirability function for comprehensive quality assessment of tonic beverage formulations
Vladimir A. Goldenkov
Russian Biotechnological University (ROSBIOTECH), Moscow, Russia,
Postgraduate student of 4.3.3 Food Systems, SPIN-code: 6697-3268, AuthorID: 1252638
e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it., ORCID: 0009-0005-7467-1602
Elizaveta V. Kryukova
Russian Biotechnological University (ROSBIOTECH), Moscow, Russia,
Doctor of Technical Sciences, Professor of the Department of Food Safety, SPIN-code: 4208-7580, AuthorID: 357878
e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it., ORCID: 0000-0001-6858-3618
Abstract. It was established that the development of tonic beverages with reduced sugar content belongs to the class of multicriteria problems, since sugar reduction must be accompanied by the preservation of organoleptic acceptability and compliance with requirements for the content of tonic components (primarily caffeine). It is shown that the application of the Harrington desirability function makes it possible to formalize beverage quality by converting heterogeneous indicators to a unified dimensionless scale and calculating an integral quality index based on weighted overall desirability. For the first time, a mathematical model for the comprehensive quality assessment of reduced-sugar tonic beverages is proposed, including: formalization of beverage quality through a system of partial responses; determination of weighting coefficients for quality indicators using the Analytic Hierarchy Process; and calculation of the integral quality index as a weighted geometric mean of partial desirabilities.
Keywords: tonic beverages, energy drinks, reduced sugar content, Harrington desirability function, weighting coefficients, AHP, integral quality index, multicriteria optimization
© Goldenkov V. A., Kyukova E. V., 2026
For citation: Goldenkov V. A., Kyukova E. V. Application of the Harrington desirability function for comprehensive quality assessment of tonic beverage formulations. Scientific Journal of the Far Eastern State Technical Fisheries University. 2026; 76(2):25–35. (In Russ.).
The article was submitted 18.05.2026; approved after reviewing 28.05.2026; accepted for publication 28.05.2026.
Original article
Development of a technology for homemade noodles with the added Pteridium aquilinun use in the school meal system
Elena A. Guz
Ministry of Education of Primorsky Krai, Vladivostok, Russia,
Department of Food Science and Technology Advanced Engineering School «Institute of Biotechnologies, bioengineering and food systems» Far Eastern Federal University, Vladivostok, Russia
Specialist, Ministry of Education, Primorsky Krai, graduate student
e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it., ORCIDID: 0000-0003-3700-2360
Natalia Yu. Chesnokova
Department of Food Science and Technology Advanced Engineering School «Institute of Biotechnologies, bioengineering and food systems» Far Eastern Federal University, Vladivostok, Russia,
Doctor of Engineering Sciences, Associate Professor, Professor of the Department of Food and Cell Engineering, SPIN-code: 2014-4031, Author ID: 833120
e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it., ORCIDID: 0000-0003-3713-8831
Alla A. Kuznetsova
Department of Food Science and Technology Advanced Engineering School «Institute of Biotechnologies, bioengineering and food systems» Far Eastern Federal University, Vladivostok, Russia,
PhD in Engineering Sciences, Associate Professor, Associate Professor of the Department of Food and Cell Engineering, SPIN-code: 6625-3799, Author ID: 641061
e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it., ORCIDID: 0000-0001-5972-6904
Abstract. This article examines the current problem of the low nutritional value of traditional pasta products made from wheat flour and substantiates the need to enrich them with biologically valuable components. Particular attention is given to the significance of this issue in the context of school nutrition, where the diet must provide growing children with all the necessary nutrients for proper development and health. In the first stage of the study, preferences for side dishes served in school cafeterias were analyzed through a questionnaire administered to students. The survey results showed that pasta ranks second in popularity (52 %), second only to mashed potatoes (61 %). This confirms the potential of using pasta as a base product for nutrient modification – the introduction of additional beneficial components without significantly altering the traditional taste characteristics. As part of the study, an original recipe for homemade noodles with Pteridium aquilinum puree was developed. Experiments were conducted to determine the optimal level of egg mixture replacement with Pteridium aquilinum puree, amounting to up to 40 %. A comprehensive quality assessment of the fortified samples was conducted, including organoleptic analysis and physicochemical testing (acidity, dry matter content transferred to the cooking medium, and weight gain coefficient during cooking). The results showed that the cooked noodle samples were yellow with a faint green tint and a smooth surface. Their taste characteristics were consistent with traditional pasta, complemented by a light, unobtrusive flavor and aroma of Pteridium aquilinum. All physicochemical parameters tested met established standards. This study confirms the feasibility of effectively fortifying pasta by adding Pteridium aquilinum puree, opening up new possibilities for improving school nutrition.
Keywords: pasta, food fortification, school meals, Pteridium aquilinum, nutrient modification, recipe, organoleptic characteristics, physicochemical indicators
© Guz E. A., Chesnokova N. Yu., Kuznetsova A. A., 2026
For citation: Guz E. A., Chesnokova N. Yu., Kuznetsova A. A. Development of a technology for homemade noodles with the added Pteridium aquilinun use in the school meal system. Scientific Journal of the Far Eastern State Technical Fisheries University. 2026; 76(2):36–52. (in Russ.).
The article was submitted 26.05.2026; approved after reviewing 02.06.2026; accepted for publication 02.06.2026.
Original article
Dry matter accumulation kinetics and mineral profile of Saccharina japonica decoctions
Svetlana V. Zhuravleva
Admiral G. I. Nevelskoy Maritime State University, Vladivostok, Russia
PhD in Engineering Sciences, Associate Professor of the Department of Natural Sciences and Life Safety, SPIN-code: 3527-3728, AuthorID: 623521
e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it., ORCID: 0009-0009-2183-0429
Tatyana M. Boytsova
Far Eastern State Technical Fisheries University, Vladivostok, Russia,
Doctor of Engineering Sciences, Professor, Professor of the Department of Industrial Fisheries, SPIN-code: 2275-3434, AuthorID: 277337
e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it., ORCID: 0000-0002-1717-0626
Elena G. Novitskaya
Far Eastern Federal University, Vladivostok, Russia,
PhD in Engineering Sciences, Associate Professor of the Basic Department of Food and Cell Engineering, SPIN-code: 4828-2518, Author ID: 744709
e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it., ORCID: 0009-0000-8873-4583
Anna V. Pankina
Admiral G. I. Nevelskoy Maritime State University, Vladivostok, Russia,
PhD in Engineering Sciences, Associate Professor, Associate Professor of the Department of Natural Sciences and Life Safety, SPIN-code: 6118-6210, AuthorID: 1052623
e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it., ORCID: 0009-0000-6757-7443
Abstract. The article presents the results of a comprehensive study on Japanese kelp (Saccharina japonica) water extracts. The authors investigated the dynamics of dry matter accumulation, changes in foaming capacity and foam stability, as well as shifts in the mineral profile of the boiling medium within a time interval of 15 to 90 minutes. Using mathematical modeling, extraction rate constants were determined and a theoretical limit for nutrient saturation of the system was established. A linear dependence between the concentration of dry matter and foaming capacity was identified. The study of mineral extraction dynamics showed that sodium and potassium cations reach maximum concentration in the solution by the 60th minute, while the extraction of calcium and iron cations requires prolonged boiling due to their binding with the organic matrix. Based on the obtained data, processing regimes for various applications were justified. It was demonstrated that extracts from short-term processing (up to 45 min) can be used as electrolyte bases. Prolonged boiling of the raw material (90 min) promotes the enrichment of extracts with divalent metal cations. Such extracts can be used for the production of functional concentrates. Thus, Saccharina japonica extracts can be considered a promising secondary raw material for the food industry, biotechnology, agriculture, and other fields.
Keywords: Saccharina japonica, water extracts, extraction dynamics, mathematical modeling, dry matter concentration, foaming capacity, mineral profile, secondary raw materials
© Zhuravleva S. V., Boitsova T. M., Novitskaya E. G., Pankina A. V., 2026
For citation: Zhuravleva S. V., Boitsova T. M., Novitskaya E. G., Pankina A. V. Kinetics of dry matter accumulation and mineral profile of Saccharina japonica decoctions. Scientific Journal of the Far Eastern State Technical Fisheries University. 2026; 76(2): 53–65. (in Russ.).
The article was submitted 27.04.2026; approved after reviewing 04.05.2026; accepted for publication 12.05.2026.
Original article
Exploring the technological potential of Pacific salmon hearts
Nikita E. Kotov
Far Eastern State Technical Fisheries University, Vladivostok, Russia
Postgraduate student, Assistant of the Department of Food Technology, SPIN-code: 9752-2657
e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it., ORCID: 0009-0001-1290-1346
Denis V. Poleshchuk
Far Eastern State Technical Fisheries University, Vladivostok, Russia,
PhD in Technical Sciences, Associate Professor, Associate Professor of the Department of Food Technology, SPIN-code: 7061-7970
e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it., ORCID: 0000-0002-0818-1542
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
Lyubov Yu. Lazhenceva
Far Eastern State Technical Fisheries University, Vladivostok, Russia,
PhD in Biological Sciences, Associate Professor, Associate Professor of the Department of Food Biotechnology, SPIN-code: 2880-2585
e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it., ORCID: 0009-0007-1338-3900
Abstract. The article presents the results of experimental studies on the technological potential of Pacific salmon hearts using the example of chum salmon, which has high consumer demand, commercial importance, and nutritional value. The following characteristics of the secondary food raw materials of salmon (hearts) have been studied: size and mass composition, physical parameters, general chemical composition, biological value of proteins, biological activity of fats, relative biological value. The availability of technological potential in salmon hearts is confirmed by the resource sufficiency – 105.16 tons per year (using the example of 2025), the total chemical composition, the analysis of which allows us to classify this secondary raw material as medium-protein. The protein fraction contains 42.35 % of essential amino acids, while fat contains 44.84 % of polyunsaturated fatty acids. These results, including the relative biological value, indicate the high technological potential of salmon hearts.
Keywords: hearts, pacific salmon, technological potential, physical characteristics, chemical composition, biological value
© Kotov N. E., Poleshchuk D. V., Maksimova S. N., Lazhenceva L. Yu., 2026
For citation: Kotov N. E., Poleshchuk D. V., Maksimova S. N., Lazhenceva L. Yu. Exploring the technological potential of Pacific salmon hearts. Scientific Journal of the Far Eastern State Technical Fisheries University. 2026; 76(2): 66–76. (in Russ.).
The article was submitted 27.05.2026; approved after reviewing 02.06.2026; accepted for publication 02.06.2026.
Original article
Study of the nutritional value and preservation of the developed flour products "Multigrain crispbread", enriched with iodine in kelp
Kseniya N. Savkina
Murmansk Arctic University, Murmansk, Russia
Junior Researcher of the Research Laboratory Chemistry and Technology of Marine Bioresources, an assistant of the Department of Food Production Technologies, SPIN-code: 4380-6887, AuthorID: 1125632
e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it., ORCID: 0000-0003-4723-2522
Abstract. The article presents the results of studies on the nutritional value and preservation of the developed flour products enriched with iodine in dried kelp "Multigrain crispbread". The experimentally determined content of the main food substances in the developed flour products was: protein – 9 %, fat – 13 %, carbohydrates – 70 %. The iodine content in 100 g of crispbread was 202.3 micrograms, which makes it possible to recommend the use of about 40 g of products to meet 50% of the daily physiological iodine requirement in adults and children in accordance with the requirements of Methodological recommendations 2.3.1.0253-21 "Norms of physiological energy and nutritional requirements for various population groups of the Russian Federation". The conducted study of the preservation of the developed flour products allowed us to recommend a shelf life of 90 days with a storage regime of (19±3) °C, relative humidity – no more than 75 %..
Keywords: fortified flour products, crispbread, kelp, nutritional value, shelf life
Acknowledgments: the author expresses gratitude to the World-class Scientific and Educational Center "Russian Arctic: new materials, technologies and research methods" for financing research within the framework of the research project "Development and production of food products enriched with iodine of kelp White Sea" No. D-1357 dated 10/15/24, the results of which were used in the preparation of the article
© Savkina K. N., 2026
For citation: Savkina K. N. Study of the nutritional value and preservation of the developed flour products "Multigrain crispbread", enriched with iodine in kelp. Scientific Journal of the Far Eastern State Technical Fisheries University. 2026; 76(2):77–85. (In Russ.).
The article was submitted 30.04.2026; approved after reviewing 11.05.2026; accepted for publication 11.05.2026.
Original article
Оptimization of the technological flow of fodder fish flour production
Tatyana I. Tkachenko
Far Eastern State Technical Fisheries University, Vladivostok, Russia
PhD in Engineering Sciences, Associate Professor, Associate Professor of the Department of Technological Machines and Equipment, SPIN-code: 5932-9472, AuthorID: 214372
e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it., ORCID: 0000-0002-9210-2172
Anastasia E. Kunyakina
Far Eastern State Technical Fisheries University, Vladivostok, Russia
Postgraduate student of the Department of Technological Machines and Equipment, SPIN-code: 8531-8012, AuthorID: 1240838
e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it., ORCID: 0009-0000-1811-1890
Valeriy V. Chuprin
Far Eastern State Technical Fisheries University, Vladivostok, Russia
Associate Professor 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.
Abstract. The production of fish meal, as a product in demand in animal husbandry and poultry farming, is an actual direction, as it allows to effectively solve the problem of processing fish waste, ensuring the rational use of natural resources. In the process of cooking raw materials, carried out in the production of fish meal by the pressing-drying method, it is necessary to reduce the oxidation processes that negatively affect the quality of the finished product. In order to reduce the total acidity of fish meal, which is largely dependent on the temperature of the fish waste cooking process, the Russian Pollock LLC upgraded its cooking boiler to allow for control of steam pressure, as well as the speed and temperature of cooking, which ultimately led to a significant reduction in the acidity of the final product, fish meal. As a result of optimizing the cooking process, the stability of the C2 and A subsystems increased. Consequently, the overall integrity of the technological process was improved.
Keywords: fish meal, fish waste, cooking, cooking pot, optimization, acidity, quality of finished products
© Tkachenko T. I., Kunyakina A. E., Chuprin V. V., 2026
For citation: Tkachenko T. I., Kunyakina A. E., Chuprin V. V. Оptimization of the technological flow of fodder fish flour production. Scientific Journal of the Far Eastern State Technical Fisheries University. 2026; 76(2): 86–93. (in Russ.).
The article was submitted 11.03.2026; approved after reviewing 24.04.2026; accepted for publication 12.05.2026.
Original article
Assessing consumer expectations for expanding the range of rolls and sushi
Ivan V. Tsibizov
Astrakhan State Technical University, Astrakhan, Russia
Postgraduate student of the Department of Technology of Goods and Commodity Research, SPIN-code: 4458-0700
e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it., ORCID: 0000-0002-8559-1307
Svetlana V. Zolotokopova
Astrakhan State Technical University, Astrakhan, Russia
Doctor of Technical Sciences, Professor, Professor of the Department of Technology of Goods and Commodity Research, SPIN-code: 8742-7193, AuthorID: 327853
e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it., ORCID: 0000-0002-2146-5443
Abstract. A study of consumer preferences for rolls and sushi offered by catering establishments in the Astrakhan Region and throughout the Russian Federation was conducted, with the aim of expanding their product range and improving their nutritional value. It was found that the most active consumers of these products are individuals aged 18 to 24 (33%), followed by those aged 25 to 44 (29%). Therefore, the opinions of these population groups, who are interested in Japanese cuisine and include rolls and sushi in their diets, are key to studying the possibility of expanding the range of these products. A study of the frequency of including rolls and sushi as a snack in the respondents' diets was conducted, and it was found that 65% of respondents purchased rolls and sushi weekly, 27% purchased them two to four times a month, and the remainder included rolls and sushi in their diets up to twice every three months. Research has shown that expanding the range of baked and signature rolls is relevant, with 43 and 35 % of respondents favoring them. Consumer preferences are determined by the location of roll and sushi production and sales, which must be taken into account when conducting research on expanding the product range. Regarding organoleptic quality indicators, taste (89 %) and product integrity (78 %) are the top priorities. Respondents rated smell (34 %) as less important, but this is offset by the sauces used in roll and sushi production.
Keywords: rolls and sushi, marketing research, surveys, organoleptic quality indicators
© Tsibizov I. V., Zolotokopova S. V., 2026
For citation: Tsibizov I. V., Zolotokopova S. V. Assessing consumer expectations for expanding the range of rolls and sushi. Scientific Journal of the Far Eastern State Technical Fisheries University. 2026; 76(2):94–101. (In Russ.).
The article was submitted 10.04.2026; approved after reviewing 20.04.2026; accepted for publication 11.05.2026.
Original article
Highly concentrated scar-protected choline chloride (60 %): development of a microcapsulated form, biological efficacy and impact on the quality of bull meat
Pavel A. Shinkaruk
Far Eastern Federal University, Vladivostok, Russia
Assistant of the Basic Department of Biological and Biochemical Engineering, Advanced Engineering School “Institute of Biotechnology, Bioengineering and Food Systems”
e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it., ORCID: 0009-0001-7653-6819
Lyudmila A. Tekutyeva
Far Eastern Federal University, Vladivostok, Russia
PhD in Engineering Sciences, Associate Professor, Director of the Advanced Engineering School “Institute of Biotechnology, Bioengineering and Food Systems”, AuthorID: 699929
e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it., ORCID: 0000-0001-3663-1365
Abstract. Choline is an essential feed component involved in phospholipid synthesis and the regulation of lipid metabolism. In ruminants, free choline is degraded in the rumen, necessitating protected forms. This study focuses on the development of a high‑concentration microencapsulated form of choline chloride containing 60 % active substance and the evaluation of its effects on growth performance, carcass morphology, and technological properties of beef cattle. The study included selection of the carrier and polymer coating, optimization of the fluidized‑bed microencapsulation process, determination of technological characteristics of the preparation, and a production trial on Simmental bulls (n=30). The resulting preparation contained 60±1.2 % choline chloride, moisture 4.7±0.3 %, granule size 0.8–1.5 mm, heat stability at 85°C (96 %), and an in vitro rumen bypass of 84–88 %. Daily administration of 15 g of microencapsulated choline increased average daily gain, improved feed conversion, and increased slaughter yield, accompanied by a greater proportion of muscle tissue and improved pH24, water holding capacity, and oxidative stability of meat. The study demonstrates the technological and biological efficiency of this domestically produced preparation and its potential for industrial feedlot systems.
Keywords: choline chloride 60 %, microencapsulation, rumen protection, meat productivity, water-holding capacity, lipid metabolism, fluidized bed
© Shinkaruk P. A., Tekutyeva L. A., 2026
For citation: Shinkaruk P. A., Tekutyeva L. A. Highly concentrated scar-protected choline chloride (60 %): development of a microcapsulated form, biological efficacy and impact on the quality of bull meat. Scientific Journal of the Far Eastern State Technical Fisheries University. 2026; 76(2):102–108. (In Russ.).
The article was submitted 03.03.2026; approved after reviewing 07.04.2026; accepted for publication 21.04.2026.
Original article
Influence of storage duration on rheological properties of frozen semi-finished bakery products
Marina A. Yanova
Krasnoyarsk State Agrarian University, Krasnoyarsk, Russia
Doctor of Technical Sciences, Professor of the Department of Baking, Confectionery and Macaroni Production Technology, SPIN-code: 8788-9580
e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it., ORCID: 0000-0003-4262-7015
Alena V. Onikienko
Krasnoyarsk State Agrarian University, Krasnoyarsk, Russia
Graduate student
e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
Abstract. Current trends in the baking industry are characterized by the introduction of low-temperature preservation technologies, which make it possible to level out the seasonality of production and ensure uniform capacity utilization. However, long-term storage of frozen semi-finished products carries the risk of destructive changes in their structural and mechanical properties, which directly affects the quality of the final product. This paper presents the results of a study on the influence of refrigerated storage periods on a range of rheological and organoleptic parameters of rich bun semi-finished products made using an innovative recipe (with the addition of rolled oats). The samples were frozen to -18°C and subsequently stored for 1, 3, and 4 months. The control group consisted of samples examined immediately after freezing. It was found that a critical decrease in elastic-plastic characteristics and a deterioration in organoleptic properties are observed after 3 months of storage. The obtained data allow us to recommend limiting the shelf life of the studied semi-finished products at -18°C to three months to guarantee stable quality of the baked goods.
Keywords: frozen bakery semi-finished products, storage periods, rheological properties, elasticity, shape recovery, quick freezing, quality
© Yanova M. A., Onikienko A. V., 2026
For citation: Yanova M. A., Onikienko A. V. Influence of storage duration on rheological properties of frozen semi-finished bakery products. Scientific Journal of the Far Eastern State Technical Fisheries University. 2026; 76(2): 109–115. (in Russ.).
The article was submitted 08.05.2026; approved after reviewing 12.05.2026; accepted for publication 19.05.2026.
FISHERIES, AQUACULTURE AND INDUSTRIAL FISHERIES
Original article
Fertility and reproductive capacity of Siberian vendace Coregonus sardinella (Coregonidae) of the Indigirka River (East Siberian Sea basin)
Evgeniy V. Burmistrov
Institute for Biological Problems of Cryolithozone Siberian Branch of the Russian Academy of Sciences (IBPC SB RAS), Yakutsk, Russia
Junior Researcher, SPIN-code: 8997-8307, AuthorID: 853664
e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
Alexander F. Kirillov
Yakutsk Branch of the Russian Federal Research Institute of Fisheries and Oceanography (“YakutskNIRO”), Yakutsk, Russia
PhD in Biological Sciences, Associate Professor, Leading Researcher, SPIN-code: 6437-6364, AuthorID: 856924
e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
Abstract. The Siberian vendace is one of the main commercial species in the Indigirka River. Its average long-term catch in the period from 1942 to 2025 is 241.8 tons, which is 25.9 % of the total average long-term fish catch in the river. Over the past 10 years, the average vendace catch was 78.4 tons, or 10.8 % of the average catch in the same period. In the context of declining catch volumes, a study of the reproductive capacity of vendace may be important for predicting the state of its stocks. Based on the material collected in 2017–2019 during the spawning run of the Siberian vendace in the Indigirka River delta, the age composition of the spawning stock, individual absolute fecundity, and the reproductive capacity per 1000 females were analyzed. The absolute fecundity of the Siberian vendace is 8.0–114.7 thousand eggs (on average 29.0 thousand eggs) and increases with age, length and weight of the fish. A gradual rejuvenation of the spawning stock was revealed. Fish aged 3+ to 10+ years with SL 193–393 mm and weight 66–857 g take part in reproduction. During the spawning migration, age groups of female vendace aged five to seven years dominate (69.6 %). The range of variability of individual absolute fecundity is very wide even among individuals of the same size and age. The reproductive capacity of the Indigirka River vendace has been calculated at 24.7 million eggs per 1,000 mature females.
Keywords: East Siberian Sea basin, Indigirka River, Siberian vendace Coregonus sardinella, spawning stock, reproduction, individual absolute fecundity, reproductive capacity
© Burmistrov E. V., Kirillov A. F., 2026
For citation: Burmistrov E. V., Kirillov A. F. Fertility and reproductive capacity of Siberian vendace Coregonus sardinella (Coregonidae) of the Indigirka River (East Siberian Sea basin). Scientific Journal of the Far Eastern State Technical Fisheries University. 2026; 76(2):116–123. (In Russ.).
The article was submitted 27.04.2026; approved after reviewing 11.05.2026; accepted for publication 11.05.2026.
Original article
Patterns of microplastic bioaccumulation by filtering hydrobionts using the example of Unio pictorum in Lake Velje, Valdaysky National Park
Zlata G. Kaurova
Saint Petersburg State University of Veterinary Medicine, Saint Petersburg, Russia
PhD in Biological Sciences, Associate Professor of the Department of Biology, Ecology and Histology
e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
Ulyana R. Sycheva
Saint Petersburg State University of Veterinary Medicine, Saint Petersburg, Russia
3rd year student
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Abstract. Microplastic pollution of freshwater ecosystems poses a threat to biota and requires the development of effective bioindication methods. Bivalve filter-feeders, particularly the painter's mussel (Unio pictorum), are considered promising objects for assessing the selectivity of particle accumulation of various morphologies. The aim of this work is to determine the selectivity of microplastic bioaccumulation of different morphotypes in U. pictorum through a comparative analysis of enrichment factors. The study was conducted in 2025 in the waters of Lake Velje (Valdaysky National Park), which experiences low anthropogenic pressure. Water samples (Jeddy plankton net) and 20 mussel specimens were analyzed. Microplastic extraction was performed by filtration followed by microscopy, with identification carried out in accordance with contamination control protocols. The dominance of filamentous particles was established both in water (71,6 %) and in mussel organisms (63,4 %). The color distribution (predominance of black, red and blue fibers) indicates anthropogenic sources of input (textile wear, degradation of packaging and fishing gear). Based on the calculation of enrichment factors (EF), accumulation selectivity was revealed: maximum values were observed for fragments (EF=1,06), while for fibers (EF=0,62) and films (EF=0,28) they were lower. A dependence of fiber retention on their length was shown: the proportion of fibers ≥1,5 mm in mussels is only 32,2 %. A high correlation of the color distribution of fibers in water and mussels (r=0.97; p<0.05) confirms the representativeness of U. pictorum as a bioindicator. The obtained data are important for assessing the trophic transfer of microplastics, environmental risks, and the hygienic safety of freshwater fishery products. The species can be recommended for environmental monitoring programs.
Keywords: microplastics, painter's mussel, Unio pictorum, bioaccumulation, enrichment factor, selective accumulation, freshwater ecosystems, bioindication
Acknowledgments: we express our special gratitude to the Valdaysky National Park for providing the study site and assistance in the research
© Kaurova Z. G., Sycheva U. R., 2026
For citation: Kaurova Z. G., Sycheva U. R. Patterns of microplastic bioaccumulation by filtering hydrobionts using the example of Unio pictorum in Lake Velje, Valdaysky National Park. Scientific Journal of the Far Eastern State Technical Fisheries University. 2026; 76(2):124–130. (In Russ.).
The article was submitted 11.03.2026; approved after reviewing 21.04.2026; accepted for publication 11.05.2026.
Original article
Benthic communities and the food supply of the Lena River basin lakes
Alexander F. Kirillov
Yakutsk Branch of the Russian Federal Research Institute of Fisheries and Oceanography (“YakutskNIRO”), Yakutsk, Russia
PhD in Biological Sciences, Associate Professor, Leading Researcher, SPIN-code: 6437-6364, AuthorID: 856924
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Elena S. Gorohova
Yakutsk Branch of the Russian Federal Research Institute of Fisheries and Oceanography (“YakutskNIRO”), Yakutsk, Russia
Head of the laboratory, SPIN-code: 5618-8807, AuthorID: 927560
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Abstract. There are 205,295 lakes in the Lena River basin (excluding the river delta) with a total water area of 37,655 km², which is 1.5 % of the total area of its basin. Of these, 15,766 lakes are in the upper reaches, with a total area of 14,600 km² (83.3 % of the lakes are located in the Vitim basin), 176,691 lakes with an area of 9,462 km² in the middle reaches (67.7 % of the lakes are located in the Aldan and Vilyuy Rivers’ basins), and 12,838 lakes with an area of 7,693 km² in the lower reaches. There are more than 30,000 lakes in the Lena Delta, the absolute majority (at least 80 %) of which have a small surface area (up to 0.001 km²). In the lakes, roach, silver and Yakut crucian carp, bream, pike, peled, arctic char, and perch are caught by industrial and amateur fisheries. The industrial catch is 1.24 thousand tons (about 60% of the river catch). The benthocenosis of the upper reaches of the lakes is represented by 13 systematic groups. The abundance and biomass of zoobenthos in the tributary lakes are: in Vitim – 22.66 g/m² and 2828 specimens/m², in Kirenga – 16.10 g/m² and 8017 individuals/m² (average for tributaries: 19.38 g/m² and 5422 individuals/m²); in the lakes of the Lena channel - 1.70 g/m² and 233 individuals/m². In total, for the lakes of the upper reaches of the Lena: 3693 individuals/ m² and 13.49 g/m². In the lakes of the Lena middle reaches, the benthic community is represented by 17 systematic groups. The highest biomass is recorded in the lake ecosystems of the Vilyuy basin, where it is (average for all lakes) 10.23 g/m² and 3289 individuals/m². In the lakes of the lower reaches and the Lena delta, the benthic community is represented by 9 systematic groups. Amphibiotic insects make up about 75 % of the benthic biomass, approximately 30 % being chironomid larvae. The abundance and biomass of zoobenthos are (average for all lakes of the lower reaches and the Lena delta) 9.40 g/m² and 1244 individuals/m². The average biomass of benthic organisms in the lakes of the Lena River basin is 12.63 g/m², with an average abundance of 2,044 individuals/m².
Keywords: Lena River basin, lakes, commercial fish, benthic community, abundance and biomass of zoobenthic organisms
© Kirillov A. F., Gorokhova E. S., 2026
For citation: Kirillov A. F., Gorokhova E. S. Benthic communities and the food supply of the Lena River basin lakes. Scientific Journal of the Far Eastern State Technical Fisheries University. 2026; 76(2):131–137. (In Russ.).
The article was submitted 18.03.2026; approved after reviewing 14.04.2026; accepted for publication 11.05.2026.
Original article
Development of a calculation methodology for the optimal layout of conical pots on a vessel's deck
Vasilii V. Kudakaev
Far Eastern State Technical Fisheries University, Vladivostok, Russia
PhD in Technical Sciences, Associate Professor, Associate Professor of the Department of Industrial Fisheries
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Abstract. This study is motivated by the need to formalize the problem of optimally placing pots on a fishing vessel's deck for subsequent algorithmization and process automation. The core issue lies in the absence of a comprehensive mathematical model that accounts for geometric constraints and the specifics of trap arrangement on the working deck during both vessel transit and fishing operations. The paper presents the development of a mathematical model for placing conical traps on a deck represented as a rectangular area. The shape of the working zone can be configured using obstacles of different form. The research methods involve the formalization of constraints, the development of objective functions, and the construction of geometric models for the obstacles. The results are presented as a system of equations and inequalities describing the conditions for correct placement. The proposed model adequately describes the practical problem and can serve as a basis for developing optimization algorithms.
Keywords: mathematical model, placement of conical pots, geometric constraints, objective function, collision constraints, deck space, pot fishing vessel, optimization problem
© Kudakaev V. V., 2026
For citation: Kudakaev V. V. Development of a calculation methodology for the optimal layout of conical pots on a vessel's deck. Scientific Journal of the Far Eastern State Technical Fisheries University. 2026; 76(2):138–144. (In Russ.).
The article was submitted 10.02.2026; approved after reviewing 28.03.2026; accepted for publication 11.05.2026.
Original article
A study of methods for controlling luminous flux by regulating voltage on fishing lights
Еlena P. Matafonova
Far Eastern State Technical Fisheries University, Vladivostok, Russia
PhD in Technical Sciences, Associate Professor, Associate Professor of the Department of Electric Power Engineering and Automation
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Abstract. A comparative analysis of voltage regulation methods for controlling the light output of fishing equipment should be conducted taking into account the energy efficiency of the ship's power supply system. Using control characteristics, mathematical analysis, and computer modeling, it is convenient to study physical processes and analyze various equipment operating modes, allowing the obtained data to be used to adjust the control system. Regulating the voltage of fishing equipment using semiconductor devices can significantly improve the efficiency of catching fish species that respond to light from surface and underwater sources.
Keywords: luminous flux regulation, synchronous generator, transformer, control characteristics, rectifiers, three-phase thyristor regulator, fishing lighting equipment
© Matafonova E. P., 2026
For citation: Matafonova E. P. A study of methods for controlling luminous flux by regulating voltage on fishing lights. Scientific Journal of the Far Eastern State Technical Fisheries University. 2026; 76(2):145–153. (In Russ.).
The article was submitted 20.02.2026; approved after reviewing 07.04.2026; accepted for publication 11.05.2026.
Original article
Rhodotorula yeast isolated from marine biotopes and algae of the Sea Japan
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
e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it., ORCID: 0000-0001-5316-4955
Ekaterina M. Panchishina
Far Eastern State Technical Fisheries University, Vladivostok, Russia
PhD in Technical Sciences, Associate Professor of the Department of Food Technology
e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it., ORCID: 0000-0002-5069-0316
Nadezhda L. Kornienko
Far Eastern State Technical Fisheries University, Vladivostok, Russia
PhD in Technical Sciences, Associate Professor of the Department of Food Technology
e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it., ORCID: 0000-0002-7161-622X
Anastasia A. Politaeva
Far Eastern State Technical Fisheries University, Vladivostok, Russia
Head of the Scientific and Production Department of Mariculture
e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it., ORCID: 0000-0002-8417-140X
Abstract. The search for new technical solutions to increase the efficiency of aquaculture reproduction by developing formulations of probiotic feed preparations with biologically active properties based on Rhodotorula yeast is an urgent task. Algae from the shallow coastal zone of the bays of the Sea of Japan were selected as a potential source of Rhodotorula yeast. The factors of distribution yeast communities in the studied marine biotopes were: sampling site, depth and type of algae. From 16 studied samples substrates of marine genesis (washings from glass with seawater, algae), cultures were isolated, based on the data obtained, an atlas was formed, including a description of cultural growth and a microscopic picture. The frequency of occurrence of yeast communities is 87.5 %, with 21 % of them being the desired species Rhodotorula spp. It has been shown that the most common sources of yeast release are Rhodotorula spp. They turned out to be: the gulfs of Slavyansky and Vostok, the Sea of Japan, and the algae of Ulva lactuca. There are some distinctive features in the nature of the cultural growth of the isolated yeast cultures, expressed in the variability color of the colonies (from pale pink to coral), the degree of their water content (slippery or dry), the shape (round or irregular), and the surface (smooth or wrinkled).
Keywords: yeast, Rhodotorula, algae, sources, morphology, and cultural growth
Funding: the work was carried out with financial support from Research Project No. 903/2026 "Probiotic Activity of Bacterial Communities in Coastal Sediments of the Sea of Japan as a Potential Source of Sustainable Reproduction of Hydrobionts".
© Matrosova I. V., Panchishina E. M., Kornienko N. L., Politaeva A. A., 2026
For citation: Matrosova I. V., Panchishina E. M., Kornienko N. L., Politaeva A. A. Rhodotorula yeast isolated from marine biotopes and algae of the Sea Japan. Scientific Journal of the Far Eastern State Technical Fisheries University. 2026; 76(2):154–163. (In Russ.).
The article was submitted 01.03.2026; approved after reviewing 17.03.2026; accepted for publication 11.05.2026.
Original article
Synergistic effect of phytohormones of different classes on growth and biochemical composition of Chaetoceros muelleri (Lemmermann, 1898)
Evgeny V. Mikheev
Far Eastern State Technical Fisheries University, Vladivostok, Russia
PhD in Technical Sciences, Head Researcher of Research Institute of Innovative Biotechnologies, SPIN-code in RSCI: 1244-4962
e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it., ORCID: 0000-0003-3433-5653
Svetlana E. Leskova
Far Eastern Federal University, Vladivostok, Russia
PhD in Biological Sciences, Associate Professor of the Department of Biodiversity and Marine Bioresources, SPIN-code in RSCI: 5124-2384
e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it., ORCID: 0000-0001-7058-3449
Nikolai N. Kovalev
Far Eastern State Technical Fisheries University, Vladivostok, Russia
Far Eastern Federal University, Vladivostok, Russia
Doctor of Biological Sciences, Chief Researcher of Research Institute of Innovative Biotechnologies, Professor, Author ID: 96894
e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it., ORCID: 0000-0001-7100-7208
Abstract. This article presents the results of the simultaneous introduction of two phytohormones - salicylic acid and indole-3-butyric acid - into the culture medium during cultivation of the microalga Chaetoceros muelleri. The study examined the effects of the hormones on the levels of key biochemical elements - protein, carbohydrates, lipids, and chlorophyll - in the microalgae culture. It was found that the introduction of the studied phytohormones did not result in increased cell proliferation compared to the control group. The study demonstrated that the simultaneous application of two phytohormones resulted in both an increase and a decrease in the levels of the biochemical components examined in the Chaetoceros muelleri culture. Stimulation of carbohydrate synthesis was observed on the third day of cultivation. Further cultivation resulted in a decrease in carbohydrate content in the experimental group compared to the control. It was found that the addition of a phytohormone mixture resulted in a 1.7-fold increase in lipid content in the microalgae culture after 7 days of cultivation, compared to the control group. Furthermore, lipid content in the experimental group exceeded that in the control group throughout the entire experiment. The addition of phytohormones inhibited protein and chlorophyll accumulation throughout the entire cultivation period. The article also compares the effects of both a mixture of the hormones examined and each hormone individually on the growth and productivity of the microalgae culture Chaetoceros muelleri.
Keywords: Chaetoceros muelleri, biochemical composition, phytohormones, salicylic acid, indole-3-butyric acid
© Mikheev E. V., Leskova S. E., Kovalev N. N., 2026
For citation: Mikheev E. V., Leskova S. E., Kovalev N. N. Synergistic effect of phytohormones of different classes on growth and biochemical composition of Chaetoceros muelleri (Lemmermann, 1898). Scientific Journal of the Far Eastern State Technical Fisheries University. 2026; 76(2):164–175. (In Russ.).
The article was submitted 12.03.2026; approved after reviewing 04.04.2026; accepted for publication 11.05.2026.
Original article
Intelligent control system for maneuvering and operation of purse seine based on the integration of autonomous auxiliary vessels
Alexander A. Nedostup
Kaliningrad State Technical University, Kaliningrad, Russia
PhD in Technical Sciences, Associate Professor, Head of the Department of Commercial Fishery
e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it., ORCID: 0000-0002-3851-0984
David V. Gmyrin
Kaliningrad State Technical University, Kaliningrad, Russia
Employee of the shipping company "Global-Flot" LLC
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Abstract. The article is devoted to the theoretical justification of a cyber-physical concept for solving the problem of reduced efficiency in purse seine fishing for pelagic fish. This problem is caused by the premature escape of the school due to the fish's reaction to the hydroacoustic noise of traditional diesel vessels, as well as the deformation of the fishing gear by underwater currents. The paper proposes the concept of an intelligent control system (ACS) "Autopurse", which coordinates the joint maneuvers of the main seiner (mother ship) and an autonomous auxiliary vessel (AVS) – an unmanned electric catamaran based on the standard place of a lifeboat. Based on the continuous analysis of the fish school parameters (velocity vectors, migration, and reaction to stimulus), the artificial intelligence (AI) of the system automatically selects the fishing mode and forms the optimal navigational setting trajectory using the Line-of-Sight (LOS) algorithm. The work is theoretical in nature and is aimed at integrating advanced navigation algorithms with the biological parameters of the target species and the operational characteristics of unmanned vessels.
Keywords: automated control systems, navigation, purse seine fishing, school migration, stimulus influence, artificial intelligence (AI), Line-of-Sight algorithm, unmanned vessel
© Nedostup A. A., Gmyrin D. V., 2026
For citation: Nedostup A. A., Gmyrin D. V. Intelligent control system for maneuvering and operation of purse seine based on the integration of autonomous auxiliary vessels. Scientific Journal of the Far Eastern State Technical Fisheries University. 2026;76(2):176–187. (In Russ.).
The article was submitted 24.05.2026; approved after reviewing 02.06.2026; accepted for publication 02.06.2026.
Original article
Modeling of pollock fishing processes on large-capacity vessels
Evgeny V. Osipov
Far Eastern State Technical Fisheries University, Vladivostok, Russia
PhD in Technical Sciences, Associate Professor, Associate Professor of the Department of Industrial Fisheries
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Ivan A. Soshin
JSC «Okeanrybflot», Vladivostok, Russia
Captain, JSC Okeanrybflot
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Svetlana V. Sukhorukova
Far Eastern State Technical Fisheries University, Vladivostok, Russia
Senior Lecturer of the Department of Industrial Fisheries
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Abstract. The work is based on a study of pollock fishing processes in the 6105 area.1 taking into account the fishing situation by the nature of pollock records in 2025, a model for calculating the fishing of a vessel has been developed. The vessel of the ST-191L project was taken as objects, the daily catch for processing was determined to be 500 tons/day, 100 tons of fillet production, 2312 tons of hold, the Atlantic 1580 trawl was used, a bag for 200 tons. The simulation of 31 voyages of the CT-191L project vessel was carried out with three variants of fillet production (100 tons, 200 tons, 300 tons), which showed, with soft modeling, the average values of output per voyage of 42077.26 tons (±387.52), 17 overloads correspond to the actual work of CT-191L vessels in the pollock fishery, The characteristics of the trawl system are sufficient to master possible catches in the area up to 92-95%. The use of the Atlantic 1660 trawl with a 250-ton bag compared to the Atlantic 1580 trawl with a 200-ton bag increased the catch by an average of 12.9%. At the same time, the catch for the Atlantic 1580 trawl with a 250-ton bag decreased by 1.7%. Increasing the bag to 300 tons resulted in a lower production per trip for the Atlantic 1660 trawl compared to the 250-ton bag. Thus, the modeling results, taking into account all processes, showed an objective picture of the fishery, where there are no linear approaches to the selection of trawl and bag sizes, characteristics of daily aquatic organism aggregations, trawl system selection processes, and its setting, all of which affect daily fishery performance. In actual planning, it is necessary to take into account that all random factors, primarily related to changes in the fishing situation, may not be taken into account, therefore, when planning fishing activities, it is necessary to focus on the lower indicators of the output per trip.
Keywords: fish products, modeling of fishing processes, fishing vessels, pollock accumulations
© Osipov E. V., Soshin I. A., Sukhorukova S. V., 2026
For citation: Osipov E. V., Soshin I. A., Sukhorukova S. V. Modeling of pollock fishing processes on large-capacity vessels. Scientific Journal of the Far Eastern State Technical Fisheries University. 2026; 76(2):188–199. (In Russ.).
The article was submitted 05.03.2026; approved after reviewing 09.04.2026; accepted for publication 11.05.2026.
Original article
Distribution of fish assemblages in the autumn-winter period of 2025 in the coastal areas of Crimea and the Caucasus according to the results of hydroacoustic research under the influence of the temperature factor
Tatiana V. Pomogaeva
A. O. Kovalevsky Institute of Biology of the Southern Seas of the Russian Academy of Sciences, Sevastopol, Russia
PhD in Agricultural Sciences, Junior Researcher of the Department of Radiation and Chemical Biology
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Yuri G. Artyomov
A. O. Kovalevsky Institute of Biology of the Southern Seas of the Russian Academy of Sciences, Sevastopol, Russia
PhD in Geographical Sciences, Senior Researcher of the Department of Radiation and Chemical Biology
Evgeny G. Sakhon
A. O. Kovalevsky Institute of Biology of the Southern Seas of the Russian Academy of Sciences, Sevastopol, Russia
Junior Researcher of the Laboratory of Microplankton, Department of Plankton
Abstract. Research in the 138th voyage of the CKP NIS "Professor Vodyanitsky", which took place in November-December 2025, was carried out according to the monitoring research program of the A.O. Kovalevsky Institute of Biology of the Southern Seas of the Russian Academy of Sciences. Hydroacoustic studies were conducted using a Simrad EK-500 hydroacoustic scientific echo sounder with stationary antennas at 38 and 120 kHz. The purpose of the studies was to assess the impact of temperature on the distribution of fish aggregations during the transitional autumn-winter season. Fish echoes were recorded both in the pelagic zone and in the bottom layer. The heterogeneous nature of the observed aggregations can be attributed to the influence of temperature. Temperature measurements indicated that the study area was in the phase of active autumn transformation.
Keywords: Black Sea, CPC NIS "Professor Vodyanitsky", hydroacoustic research, Simrad EK-500, echogram, echo intensity, density of clusters, temperature, and hamsa
Funding: the work was carried out within the framework of the state assignment of the FITZ INBYUM on the topic "Study of biogeochemical patterns of radioecological and chemoecological processes in ecosystems of reservoirs of the Azov-Black Sea basin in comparison with other water areas of the World Ocean and individual aquatic ecosystems of their catchment areas to ensure sustainable development in the southern seas of Russia" (No. 124030100127-7) and "Transformation of structure and functions marine pelagic ecosystems under conditions of anthropogenic impact and climate change" (No. 124030400057-4)"
Acknowledgements: the authors express their gratitude to the entire crew of the Central Research Laboratory of the NIS "Professor Vodianitsky", as well as special thanks for their research assistance to the captain's science assistant V. V. Davydov
© Pomogaeva T. V., Artyomov Yu. G., Sakhon E. G., 2026
For citation: Pomogaeva T. V., Artyomov Yu. G., Sakhon E. G. Distribution of fish assemblages in the autumn-winter period of 2025 in the coastal areas of Crimea and the Caucasus according to the results of hydroacoustic research under the influence of the temperature factor. Scientific Journal of the Far Eastern State Technical Fisheries University. 2026; 76(2):200–209. (In Russ.).
The article was submitted 07.05.2026; approved after reviewing 13.05.2026; accepted for publication 19.05.2026.
Original article
Some biological indicators of Schrenk's flounder of Amur Bay (Sea of Japan) in the spring period of 2023, 2024, 2025
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. In Primorye waters, Schrenk's flounder is of little commercial value and is primarily a target for recreational fishing. This paper examines the biological parameters of Schrenk's flounder in Amur Bay based on data from 2023, 2024, and 2025. No significant interannual differences in size or weight were found. In Amur Bay, the average length of Schrenk's flounder was 33.3±0.26 cm in 2023, 32.8±0.25 cm in 2024, and 33.8±0.21 cm in 2025, with average weights of 363±11 g, 363±21 g, and 377±0.7 g, respectively. Females were larger than males. The sex ratio in 2023 and 2024 was 0.5±0.5 was 1.5:1, with a predominance of females. In 2025, it was 1:1, with a slight predominance of males. Schrenk's flounder were encountered with gonads at stages IV and V of maturity.
Keywords: Schrenk's flounder, Amur Bay, size-weight characteristics, length-weight relationship, sex, gonad maturity
© Sergeeva M. M., 2026
For citation: Sergeeva M. M. Some biological indicators of Schrenk's flounder of Amur Bay (Sea of Japan) in the spring period of 2023, 2024, 2025. Scientific Journal of the Far Eastern State Technical Fisheries University. 2026; 76(2):210–216. (In Russ.).
The article was submitted 23.03.2026; approved after reviewing 13.04.2026; accepted for publication 11.05.2026.
Original article
Analysis of the distribution of the volume of production (catch) quotas for the Opilio cuttlefish by users in the Far Eastern Fisheries Basin for 2019–2025
Svetlana V. Sukhorukova
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.
Abstract. The present study analyses the dynamics of the distribution of total allowable catches (TAC) of the snow crab (Chionoecetes opilio) by quota categories within the Far Eastern Fisheries Basin for the forecast period of 2019–2025. The work includes an analysis of key indicators, such as TAC volumes and the structure of quota allocation among users of aquatic biological resources.
Keywords: Far Eastern Fishery Basin, crabs, total allowable catch (TAC), catch, quotas, investment quotas
© Sukhorukova S. V., 2026
For citation: Sukhorukova S. V. Analysis of the distribution of the volume of production (catch) quotas for the Opilio cuttlefish by users in the Far Eastern Fisheries Basin for 2019–2025. Scientific Journal of the Far Eastern State Technical Fisheries University. 2026; 76(2):217–229. (In Russ.).
The article was submitted 27.03.2026; approved after reviewing 13.04.2026; accepted for publication 11.05.2026.
SHIP POWER PLANTS AND THEIR ELEMENTS (MAIN AND AUXILIARY)
Original article
On the necessity to train ship crews to switch to alternative fuels as part of the IMO strategy to reduce greenhouse gas emissions
Vitalii V. Gannesen
Far Eastern State Technical Fisheries University, Vladivostok, Russia
Associate Professor, Associate Professor of the Department of Navigation, AuthorID: 812731
e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
Ekaterina E. Petrova
Far Eastern State Technical Fisheries University, Vladivostok, Russia
PhD in Technical Sciences, Associate Professor of the Department of Navigation, AuthorID: 1108787
e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
Abstract. The international maritime community has recognized the importance of preparing shipping industry for switching to green technologies. The relevant policy set out in the IMO 2023 Strategy to Reduce Greenhouse Gas Emissions from Ships sets the overall goal of achieving zero greenhouse gas emissions from international shipping by 2050. This strategy is to implement zero- or near-zero-emission technologies and energy sources. It is supposed that by 2030 the share of such technologies should amount to between 5% and 10% of the total energy consumed by international shipping. The work of future seafarers is likely to become significantly more difficult, as new fuels and technologies will require increased immersion in digital and automated work environments which will likely impact the upcoming revision of the International Convention on Standards of Training, Certification and Watchkeeping for Seafarers (STCW). Seafarers will have to be appropriately trained when shipping companies implement alternative fuel technologies. The purpose of this research was to review the issues related to readiness of ship crews to implement "green" technologies in maritime shipping. The article observes the challenges caused by switching to alternative fuels that can reduce global greenhouse gas emissions. It is noted that switching ships to alternative fuels requires not only new technical solutions but also crew special training. Furthermore, the lack of regulations establishing requirements to competency of maritime specialists operating the ships powered by alternative fuels prevents from active implementation of relevant training programs for maritime specialists.
Keywords: decarbonization, alternative fuels, eco-friendly transport, simulator training of crews
© Gannesen V. V., Petrova E. E., 2026
For citation: Gannesen V. V., Petrova E. E. On the necessity to train ship crews to switch to alternative fuels as part of the IMO strategy to reduce greenhouse gas emissions. Scientific Journal of the Far Eastern State Technical Fisheries University. 2026; 76(2):230–237. (In Russ.).
The article was submitted 23.03.2026; approved after reviewing 21.04.2026; accepted for publication 11.05.2026.
Original article
The dynamics of the "vessel-deep-sea trawl" system during trawl bottom engagement
Stanislav V. Terlych
Kherson State Maritime Academy, Kherson, Russia
PhD in Technical Sciences, Dean of the Faculty of Navigation and Ship Power Engineering, SPIN-codе: 3390-8260
e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it., ORCID: 0000-0002-6044-3087
Abstract. The dynamic system "trawler vessel" together with a deep-sea trawl in conditions of the trawl (trawl board) engagement with the bottom is considered. The problem of solution using Laplace transformations in time is formulated. Analytical dependences are obtained for determining the forces in the vaer and studying the dynamics of the vessel.
Keywords: trawler vessel, warp, dynamics of flexible connections
© Terlych S. V., 2026
For citation: Terlych S. V. The dynamics of the "vessel-deep-sea trawl" system during trawl bottom engagement. Scientific Journal of the Far Eastern State Technical Fisheries University. 2026; 76(2):238–242. (In Russ.).
The article was submitted 28.04.2026; approved after reviewing 12.05.2026; accepted for publication 26.05.2026.