«Scientific Journal of the Far Eastern State Technical Fisheries University». Vol. 68. No 2. 2024
BIOTECHNOLOGY OF FOOD AND BIOLOGICALLY ACTIVE SUBSTANCES
Original article
DOI: doi.org/10.48612/dalrybvtuz/2024-68-02
The influence of sonification on the fractional composition, physicochemical properties and antioxidant activity of functional fucus algae gels
Tatyana N. Pivnenko
Far Eastern State Technical Fisheries University, Russia, Vladivostok,
Doctor Biological sciences, Professor, Professor of the Department of food biotechnology, SPIN-code: 7443-7095, AuthorID: 817526, http://orcid.org/ 0000-0002-0330-489X
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Yulia M. Pozdnyakova
Far Eastern State Technical Fisheries University, Russia, Vladivostok,
PhD in Technical Sciences, Director of Research Institute of Innovative biotechnology, https://orcid.org/ 0000-0002-9078-0850,
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Roman V. Esipenko
Far Eastern State Technical Fisheries University, Russia, Vladivostok,
PhD in Technical Sciences, Research Assistant of Research Institute of Innovative Biotechnology, https://orcid.org/0000-0002-8263-6939,
e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
Abstract. The effect of sonification of functional gel-like products obtained from the brown algae Fucus evanescens on the fractional composition, physico-chemical properties and antioxidant activity was considered. A significant effect of ultrasound on the rheological properties of gels containing fucoyan was shown associated with changes in the structure of polysaccharides and their complexes and the formation of viscous paste. The dynamic viscosity of the gels increased from 65 to 207 times depending on the sonation power. At the same time, an increase of the gels strength and the transformation from a completely elastic material into an almost completely viscous one were observed. The redistribution of fucoidan between the water-soluble fraction and polysaccharide gels showed that the aqueous fraction contains about 3% fucoidan of dry weight, and the sonification of gels allows to increase its content from 17 to 24% of the total mass. The highest value of antioxidant activity was established for the water-soluble fraction, which corresponds to the transition of polyphenolic compounds into it. Ultrasound treatment allowed increasing the antioxidant activity of the gels from 7 to 64% in terms of dry weight. The resulting gels meet the requirements of the concept of natural dietary fibers with antioxidant properties and can be used in food technologies.
Keywords: fucus, fucoidan, ultrasound, antioxidant activity, rheology
© Pivnenko T. N., Pozdnyakova Yu. M., Esipenko R. V., 2024
The article was submitted 03.06.2024; approved after reviewing 10.06.2024; accepted for publication 11.06.2024.
FOOD SYSTEMS
Original article
DOI: doi.org/10.48612/dalrybvtuz/2024-68-02
Enrichment of the protein-lipid complex for meat products with natural antioxidants
Bayana A. Bazhenova
East Siberian State University of Technology and Management, Ulan-Ude, Russia,
Doctor of Technical Sciences, Professor of the Department "Technology of animal products. Commodity Science", SPIN code: 9246-6785, AuthorID: 598376, http://orcid.org/0000-0001-7380-5959
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Svetlana Yu. Leskova
East Siberian State University of Technology and Management, Ulan-Ude, Russia,
PhD in Technical Sciences, Associate Professor of the Department "Technology of animal products. Commodity Science", SPIN code: 6226-1059, AuthorID: 367415, http://orcid.org/0000-0002-2938-4752
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Anastasia G. Burkhanova
East Siberian State University of Technology and Management, Ulan-Ude, Russia,
Lecturer of the Department "Technology of animal products. Commodity Science", SPIN code: 8995-9400, AuthorID: 969037, http://orcid.org/0000-0000-3404-7002
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Evgeniya I. Baimeeva
East Siberian State University of Technology and Management, Ulan-Ude, Russia,
Postgraduate student of the Department "Technology of animal products. Commodity Science", SPIN code: 1513-6447, AuthorID: 1177010, http://orcid.org/0009-0003-0074-0762
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Vladimir Ts. Gomboev
East Siberian State University of Technology and Management, Ulan-Ude, Russia,
Master of the Department "Technology of animal products. Commodity science", http://orcid.org/0009-0002-8203-2497
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Ekaterina V. Shushurikhina
East Siberian State University of Technology and Management, Ulan-Ude, Russia,
Master of the Department "Technology of animal products. Commodity science", http://orcid.org/0009-0007-8314-3750
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Abstract. This article presents the results of research on the potential of antioxidant properties of blueberry leaf extract (vaccinium myrtíllus), which grows in the Trans-Baikal region. Blueberry (vaccinium myrtíllus) is a low shrub 20-30 cm, actively growing in the taiga zone of the Trans-Baikal region. Fruits that have a bluish-black color, rich in tannins, anthocyanins, tannins, flavonols and other substances are used for food. In addition to fruits, blueberry leaves and shoots are used as medicines, which also contain various biologically active substances and are recommended for use in diseases of the eyes, gastrointestinal tract, diabetes mellitus, in gerontology, in the treatment of burns, stomatitis, etc. The introduction of a 5% extract from blueberry leaves, rich in biologically active substances with antioxidant properties, into the composition of the protein-lipid complex is proposed. This dose provides an antioxidant content of 3,72% and helps to inhibit oxidative processes during storage of the protein-lipid complex. Heat treatment slightly reduces the total amount of antioxidants in the protein-lipid complex. Further use of BLK with extract from blueberry leaves as part of minced meat products can participate in the processes of inhibition of oxidative processes in the finished product and contribute to the enrichment of meat products with natural antioxidants.
Keywords: blueberry leaves, extract, total antioxidant content, protein-lipid complex
Financing Support: The work was carried out with the support of the grant Young Scientists of VSGUTU-2024.
© Bazhenova B. A., Leskova S. Yu, Burkhanova A. G., Baimeeva E. I., Gomboev V. Ts., Shushurikhina C. V., 2024
The article was submitted 03.05.2024; approved after reviewing 31.05.2024; accepted for publication 10.06.2024
Original article
DOI: doi.org/10.48612/dalrybvtuz/2024-67-03
Recombinant protein: gene synthesis and prospects for use as biologically active substances in food systems
Sholpan S. Valieva
South Ural State Agrarian University, Troitsk, Russia,
Graduate Student, http://orcid.org/0009-0006-8660-3456
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Sergey L. Tikhonov
Ural State Agrarian University, Ural State Forestry Engineering University, Yekaterinburg, Russia,
Doctor of Technical Sciences, Professor, Director of the Research Center «Applied Nanobiotechnology», http://orcid.org/0000-0003-4863-9834
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Natalia V. Tikhonova
Ural State Agrarian University, Yekaterinburg, Russia,
Doctor of Technical Sciences, Professor, Head of the Department of Food Engineering of Agricultural Production, http://orcid.org/0000-0001-5841-1791
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Abstract. A promising scientific direction for the synthesis of protein molecules is the development of the technology of recombinant DNA. One of the recombinant human proteins being studied today is the GDF-11 protein. The aim of the work is to synthesize genes expressing the recombinant DNA of the GDF-11 protein in E. coli and to consider the prospects for its use as a dietary supplement in personalized nutrition products. Research on gene synthesis was carried out at Eurogen CJSC (Moscow, Russia). The GDF-11 protein was encoded by a synthetic gene optimized for expression in E. coli. Sequences encoding GDF-11 were cloned into the eukaryotic expression vector pET-25b. oligonucleotides complementary to either one or the other chain of the gene, overlapping with sections of 20-30 base pairs, were synthesized. Then, with the help of DNA polymerase, chains were completed to fill the gaps between the oligonucleotides. At the last stage, the constructed gene was amplified by standard PCR. A bacterial vector for the expression of GDF-11 protein b in E. coli has been obtained, contributing to the high expression of the embedded transgene in E. coli. The research results will contribute to understanding the molecular mechanisms underlying the biotransformation and metabolism of BAS, which is important for the development of safe and effective operating principles and personalized nutrition products.
Keywords: recombinant proteins, GDF-11 protein, pET-25b expression vector, biotransformation, metabolism, biologically active substances
© Valieva S. S., Tikhonov S. L., Tikhonova N. V., 2024
The article was submitted 03.05.2024; approved after reviewing 23.05.2024; accepted for publication 10.06.2024
Original article
DOI: doi.org/10.48612/dalrybvtuz/2024-68-04
Practical experience in organization of traceability system at 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, http://orcid.org/0000-0003-4366-3819
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Abstract. In accordance with the requirements of the food legislation of the Russian Federation, food industry enterprises must organize the functioning of the caking system in order to ensure the safety of food products. The organization of the traceability system usually raises many questions and problems related to the lack of clear order and procedures, loss or errors in records, the absence of a number of identification of raw materials, semi-finished products and finished products, as well as a lack of a comprehensive understanding of traceability. The best practices for food industry enterprises in order to operate the traceability system is the use of labeling to ensure identity, however, in order to ensure a transparent connection between the finished products produced by the enterprise and the batch of raw materials that went to its production, as well as evidence of the use of food components and the correctness of its composition, an internal labeling system should be developed at the enterprise in accordance with the specifics of technological processes.
Keywords: food production, traceability, labeling, identification, records, data register, data logs
© Glebova E. V., 2024
The article was submitted 09.02.2024 approved after reviewing 28.04.2024, accepted for publication 10.06.2024.
Original article
DOI: doi.org/10.48612/dalrybvtuz/2024-68-05
Assessment of the quality and safety of canned «Sprats in oil» from fish of the Far Eastern basin
Evgeny A. Zayats
Far Eastern State Technical Fisheries University, Vladivostok, Russia,
postgraduate student of the PSa-312 group of the Department of Food Technology. SPIN code: 2429-7668, AuthorID: 1080142, http://orcid.org/0000-0003-4935-0872
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Tatyana N. Slutskaya
Far Eastern State Technical Fisheries University, Vladivostok, Russia,
Doctor of Technical Sciences, Professor, Professor of the Department of Food Technology. SPIN code: 2811-7091, AuthorID: 801938, http://orcid.org/0000-0002-3228-3047
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Abstract. The study examined the nutritional and energy value of canned food, which, depending on the assortment of canned food, amounted to 12,2-30 % of the daily protein intake, 24,4-66,7 % of lipids and 9,2-23,4 % of energy requirements. The determination of the safety indicators of canned food «Sprats in oil» made it possible to establish compliance with the requirements of industrial sterility for canned food of group «A» and compliance of canned food with the requirements of TR CU 021/2011 and TR EAEU 040/2016. The high quality of experimental products was established by determining a generalized organoleptic assessment (81-100 %), as well as safety indicators.
Keywords: sprats in oil, Far Eastern fish species, quality, safety, nutritional value, energy value, organoleptic assessment, small-mouthed sea smelt, Pacific capelin, Japanese anchovy
© Zayats E. A., Slutskaya T. N., 2024
The article was submitted 24.05.2024; approved after reviewing 05.06.2024; accepted for publication 11.06.2024.
Original article
DOI: doi.org/10.48612/dalrybvtuz/2024-68-06
Processing of crabs secondary raw materials: prospects and risks
Svetlana N. Maksimova
Far Eastern State Technical Fisheries University, Vladivostok, Russia,
Doctor of Technical Sciences, Professor, Head of the Department of Food Technology of the Far Eastern State Technical Fisheries University, SPIN-code: 4857-2135, http://orcid.org/0000-0001-9654-1044
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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 of the Far Eastern State Technical Fisheries University, SPIN-code:7061-7970, http://orcid.org/0000-0002-0818-1542
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Artyom A. Mirgorodov
Russian Crab Company Group, Vladivostok, Russia,
Director of Production, http://orcid.org/0009-0006-5566-6960
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Abstract. The article presents data confirming the high technological potential of secondary crab raw materials generated during industrial processing of crabs. The catch volumes of various types of crabs in recent years, primarily in the Far East, are shown. The amount of waste that accumulates and is not used by producers of crab food products is calculated using the example of the Russian Crab Group of Companies. In this work described the difficulties and risks of processing secondary crab raw materials in marine conditions and the prospects for organizing such work on shore, taking into account the focus of crab mining enterprises on the export of live crab. A scheme for the complex processing of crabs is presented, which makes it possible to obtain biologically valuable products: chitinous materials, protein products, lipids, enzyme preparations. Particular attention is paid to the issue of using shell-containing waste to produce chitin, chitosan and its derivatives. Work gives аn assessment of the market for chitinous materials for the next decade and shows the leading countries in the field of production and use of chitinous materials/ A list of scientific organizations in the world engaged in research on chitin, chitosan and their derivatives is presented, including the Russian Chitin Society, which every two years presents the results obtained in this field at international scientific and practical conferences. Shows the contribution of Far Eastern State Technical Fisheries University scientists in the development and improvement of the technology of food products from aquatic biological resources, focused on the production of high-quality safe and healthy products through the use of chitinous materials. A conclusion is drawn about the prospects for processing recycled crab raw materials, which will simultaneously solve social (population health), environmental (environmental protection) and economic problems.
Keywords: crabs, secondary raw materials, biological value, chitinous materials, prospects
© Maksimova S. N., Poleshchuk D. V., Mirgorodov A. A., 2024
The article was submitted 31.05.2024; approved after reviewing 10.06.2024; accepted for publication 13.06.2024.
Original article
DOI: doi.org/10.48612/dalrybvtuz/2024-68-07
Assessment of the protein potential of promising raw material sources for feed purposes
Olga Ya. Mezenova
Kaliningrad State Technical University, Kaliningrad, Russia,
Doctor of Technical Sciences, Professor, Head of the Department of Food Bio-Technology, Honored Worker of the Fisheries of the Russian Federation, Honored Worker of the Higher School of Russia, Academician of the International Academy of Refrigeration, http://orcid.org/0000-0002-4716-2571
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Svetlana V. Agafonova
Kaliningrad State Technical University, Kaliningrad, Russia,
PhD in Technical Sciences, Associate Professor of the Department of Food Biotechnology, Corresponding Member of the International Academy of Refrigeration, http://orcid.org/0000-0002-5992-414X
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Natalia Yu. Romanenko
Kaliningrad State Technical University, Kaliningrad, Russia,
PhD in Technical Sciences, Associate Professor of the Department of Food Biotechnology, corresponding member of the International Academy of Refrigeration, http://orcid.org/0000-0002-7433-7189
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Natalia S. Kalinina
Kaliningrad State Technical University, Kaliningrad, Russia,
Head of Laboratories of the Department of Food Biotechnology, http://orcid.org/0000-0003-0942-5411
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Vladimir V. Volkov
Kaliningrad State Technical University, Kaliningrad, Russia,
Director of the Protein Center of the Department of Food Biotechnology, http://orcid.org/0000-0001-5560-7131
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Abstract. The problem of high-quality feed protein is holding back the intensive development of livestock farming, poultry farming, and aquaculture. Modern feed production uses fish, meat and bone, feather feed meal, and vegetable proteins as a source of protein. Hydrolysates of under-demanded secondary fish and chitin-containing raw materials are becoming a promising source of protein. The purpose of the study was to evaluate the protein potential of the products of deep hydrolysis of this raw material for use in feed for fish farming. The objects of the study were waste from fish cutting (scales, heads of smoked sprat), cephalothorax of Kamchatka crabs, northern and whiteleg shrimp. Due to their high mineralization, smoking components and chitin content, these raw materials are practically not processed into feed products using traditional methods. In the work, the raw materials were subjected to enzymatic and high-temperature hydrolysis in an aqueous environment under pressure. After fractionation of the hydrolysates and their drying, two protein-containing additives were obtained, which were water-soluble and water-insoluble powder dispersions. The general chemical composition, fractional-molecular distribution and amino acid composition of proteins in the resulting supplements were studied. The protein content in the water-soluble additive ranged from 63.8% to 97.7% depending on the type of raw material and method of hydrolysis, while the molecular weight of 92-95% of the peptide molecules in the additive ranged from 5-10 kDa. In comparative biological experiments on the introduction of water-soluble additives into the feed composition of juvenile whitefish and rainbow trout in an amount of 5% instead of fish meal, a significant increase in the morphobiological parameters of experimental fish relative to control ones was obtained. The results obtained indicate the high protein potential of the studied raw material sources and the rationality of its use in feed technologies.
Keywords: proteins, secondary fish raw materials, chitin-containing waste, hydrolysis, peptide-protein additive, feed, aquaculture
Acknowledgments. The study were carried out within the framework of the State Assignment of Roskomry-bolovstvo on the topic: “Obtaining biologically active substances from by-products and under-demanded aquatic biological resources for fish farming and technical purposes” (Reg. No. 122030900082-3). We thank the Director of the UBF Consulting and Research Laboratory (Germany), Dr. Thomas Mоerzel for his assistance with analytical studies, as well as Ph.D. Shakhov E.V. for assistance in biological testing.
© Mezenova O. Ya., Agafonova S. V., Romanenko N. Yu., Kalinina N. S., Volkov V. V., 2024
The article was submitted 03.05.2024; approved after reviewing 22.05.2024; accepted for publication 10.06.2024.
Original article
DOI: doi.org/10.48612/dalrybvtuz/2024-68-08
Investigation of the possibility of using low-temperature salting for pollock salting
Anton V. Tabakaev
Far Eastern State Technical Fisheries University, Vladivostok, Russia,
Senior Researcher at the Scientific Department, http://orcid.org/0000-0001-5658-5069
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Oksana V. Tabakaeva
Far Eastern Federal University, Vladivostok, Russia,
Doctor of Technical Sciences, Professor of the Department of Food Sciences and Technologies of the School of Medicine and Life Sciences FEFU, http://orcid.org/0000-0002-7068-911X
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Ivan A. Sytnik
Far Eastern State Technical Fisheries University, Vladivostok, Russia,
Assistant, http://orcid.org/0000-0003-1499-0634
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Andrey A. Simdyankin
Far Eastern State Technical Fisheries University, Vladivostok, Russia,
Senior lecturer, http://orcid.org/0000-0001-7242-5356
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Abstract. In the course of the presented study, the possibility of using low-temperature dry salting of pollock fillets to obtain a lightly salted semi-finished product for further use in the technology of dried and dried products was proved. It has been experimentally proven that the process of salting pollock muscle tissue with low–temperature dry salting is influenced by the following factors - the mass fraction of salt, temperature and duration of the process. The maximum salt content in pollock muscle tissue is 5.55-6.50% with a salting duration of 24 hours. Lower salting temperatures change the salting rate in the direction of slowing down the process. An increase in the mass fraction of salt during the salting process leads to a significant increase in its content in the muscle tissue of pollock The yield of the salted semi-finished product depends on the mass fraction of salt (maximum at 5%), temperature (maximum at minus 10 0C). An increase in the duration of the low-temperature salting process leads to a decrease in the yield of the salted semi-finished product. The dependences of changes in the humidity of salted semi-finished pollock in the process of low-temperature salting on various factors (temperature, duration of the process and mass concentration of salt) have been established, which allows us to assert the possibility of obtaining salted semi-finished pollock of different humidity by changing the temperature, duration of the process and mass concentration of salt. The maximum humidity is characterized by a salty semi-finished pollock at a mass salt concentration of 5% and a temperature of minus 10 0C.
Keywords: pollock, low-temperature ambassador, salty semi-finished product
Financial Support: the work was carried out within the framework of the state assignment of the Far Eastern State Technical Fisheries University on the topic of research work № 823/2023 "Improving the technology of minced fish from re-frozen raw materials using cryoprotectors."
© Tabakaev A. V., Tabakaeva O. V., Sytnik I. A., Simdyankin A. A., 2024
The article was submitted 22.05.2024; approved after reviewing 23.01.2024; accepted for publication 10.06.2024.
Original article
DOI: doi.org/10.48612/dalrybvtuz/2024-68-09
Justification of new raw materials for smoke generation in the production of smoked fish products
Egor G. Timchuk
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 8836-6556, AuthorID: 987987, http://orcid.org/0000-0003-2473-2081
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Abstract. Such valuable types of wood as oak, beech, alder, maple, linden, apple, cherry and others are traditionally used as raw materials for smoke generation in the implementation of smoke smoking of food products. The author has proposed a new source of smoke generation in the form of vine clippings.
Vine pruning is the main waste of viticulture. Traditionally, vine clippings are burned for disposal, which damages the ecological condition of the region. One of the possible ways to solve this problem is to use vine clippings as raw materials for smoke smoking of fish.
Therefore, this article is devoted to the evaluation of the crushed vine of the Amur grape Vítis amurénsis as a raw material for smoke formation during hot smoking of Pacific herring. For this purpose, the analysis of the organoleptic parameters of the Pacific hot-smoked herring produced by the smoke method using crushed grapevine and beech chips was carried out, the analysis of the chemical parameters of the samples of the Pacific hot-smoked herring was carried out and a comparative assessment of the quality of the samples of the Pacific hot-smoked herring was carried out.
In the experimental work, pruning vines of the Amur grape Vítis amurénsis were used to generate smoke during hot smoking of Pacific herring. Hot-smoked Pacific herring made using beech chips was used as an object of comparison.
Keywords: grapevine, food smoking fish, raw materials for smoke generation
© Timchuk E. G., 2024
The article was submitted 08.04.2024; approved after reviewing 17.05.2024; accepted for publication 10.06.2024.
FISHERIES, AQUACULTURE AND INDUSTRIAL FISHERIES
Original article
DOI: doi.org/10.48612/dalrybvtuz/2024-68-10
Analysis of Berryteuthis magister production in 2023
Nina S. Ivanko
Far Eastern State Technical Fisheries University, Vladivostok, Russia,
Senior Lecturer of the Department of Applied Mathematics and Informatics, SPIN-code: 6882-7377, AuthorID: 814886,
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Svetlana V. Lisienko
Far Eastern State Technical Fisheries University, Vladivostok, Russia,
Doctor of Technical Sciences, Associate Professor, Head of the Department of Industrial Fisheries, SPIN-code: 6437-6364, AuthorID: 371990,
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Abstract. The results of a study of the work of the mining fleet in the Berryteuthis magister fishery in the commercial zones of the Far Eastern Fisheries Basin are presented. The research was carried out for the Berryteuthis magister fishing facility. The study period is 2023.
Keywords: Berryteuthis magister, fishing availability period, average daily catch, mining fleet
© Ivanko N. S., Lisienko S. V. , 2024
The article was submitted 24.05.2023; approved after reviewing 10.06.2024; accepted for publication 11.06.2024.
Original article
DOI: doi.org/10.48612/dalrybvtuz/2024-68-11
Industrial development of cod in the Kamchatka-Kuril subzone from 2020 to 2023
Svetlana V. Lisienko
Far Eastern State Technical Fisheries University, Vladivostok, Russia,
Doctor of Technical Sciences, Associate Professor, Head of the Department of Industrial Fisheries, SPIN-code: 6437-6364, AuthorID: 371990,
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Abstract. The article presents the results of an analysis of the industrial development of cod: the volume of TAC and catch, the distribution of TAC by type of quota and by miners in the Kamchatka-Kuril subzone from 2020 to 2023.
Keywords: catch quotas, fisheries, Kamchatka-Kuril subzone, general allowable catch, organizations - users of VBR
© Lisienko S. V. , 2024
The article was submitted 03.05.2024; approved after reviewing 28.05.2024; accepted for publication 11.06.2024.
Original article
DOI: doi.org/10.48612/dalrybvtuz/2024-68-12
Multiphysical similarity in the closed system "RAS - hydrobiont"
Aleksandr A. Nedostup
Kaliningrad State Technical University, Kaliningrad, Russia,
PhD, Associate Professor, head Department of Commercial Fisheries, SPIN-code: 7035-5279, AuthorID: 393895, http://orcid.org/0000-0002-3851-0984
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Alexey O. Razhev
Kaliningrad State Technical University, DigiTech Laboratory, Kaliningrad, Russia,
PhD, General Director, Chief Engineer of DigiTech Laboratory; Leading Researcher of Kaliningrad State Technical University, SPIN-code: 4535-5888, AuthorID: 723215, http://orcid.org/0000-0002-0983-834X
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Daniil V. Sukonnov
DigiTech Laboratory, Kaliningrad, Russia,
Engineer of DigiTech Laboratory, http://orcid.org/0009-0005-1795-7196
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Abstract. The article presents the implementation of the theory of the multiphysical similarity of recirculating aquaculture system (RAS) and hydrobionts. In the RAS, fish are grown in a confined space where all living conditions are controlled and optimized to achieve maximum productivity. In such systems, fish receive food automatically, and the water quality is regulated by special filtration and purification systems. This allows you to increase the growth rate of fish and get high quality products. However, for effective management of the RAS, it is necessary to have information about the condition of fish and their conditions of detention. To do this, various monitoring methods are used, such as measuring water parameters, observing fish behavior, analyzing the composition of food, etc. One of the main tasks of the RAS is to manage the fish population. This includes controlling the growth and reproduction of fish, as well as preventing the occurrence of diseases and other problems. Various methods are used for this, including genetic research, vaccination and the use of antibiotics. The development of new technologies and methods of fish cultivation is also an important part of the work in the RAS. This may include the use of new feed mixtures, optimization of fish keeping conditions, as well as the introduction of new technologies, such as the use of artificial intelligence and machine learning. In general, the development of fish farming and aquaculture is an important direction for the development of agriculture and the food industry. It allows meeting the growing demand for fish products, as well as reducing the negative impact on natural resources. Scientific research and technological developments play a key role in this process, which make it possible to improve the conditions of fish keeping and increase their productivity. The study of the parameters of ultrasound and the growth of hydrobionts to control them is possible using the theory of multiphysical similarity. The article presents the results of the multiphysical similarity of the recirculating aquaculture system and carp grown in RAS model and in kind.
Keywords: multiphysical similarity, RAS, recirculating aquaculture system, hydrobiont, carp
Funding: The research was carried out in DigiTech Laboratory at the expense of a grant from the Russian Science Foundation (project No. 23-21-00010), https://rscf.ru/project/23-21-00010/.
© Nedostup A. A., Razhev A.O., Sukonnov D.V., 2024
The article was submitted 06.03.2024; approved after reviewing 24.05.2024; accepted for publication 10.06.2024.
Original article
DOI: doi.org/10.48612/dalrybvtuz/2024-68-13
Analysis of the dynamics of the slope of juvenile pink salmon of the Lesnaya River (Sakhalin Island) in 2020, 2022
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.
Abstract. The object of the study was a sloping juvenile pink salmon in the Lesnaya River. In the course of the work, the timing of the ramp, the factors affecting the slope of juveniles were analyzed, the number of rolling juveniles by year, as well as its size and mass characteristics were determined. In 2020, 2022, the main determining factor affecting the dynamics of the pink salmon stingray was the water temperature. The stingray of juveniles during the observation period began in mid-May. The number of rolled juveniles from the Lesnaya river in 2020 amounted to 20 million 557 thousand 999 units, in 2022 – 6 million 433 thousand 943 units.
Keywords: pink salmon, Lesnaya River, sloping juveniles, sloping juveniles, temperature, water level, length, mass
© Sergeeva M. M., 2024
The article was submitted 13.05.2024; approved after reviewing 05.06.2024; accepted for publication 11.06.2024.
Original article
DOI: doi.org/10.48612/dalrybvtuz/2024-68-14
Size and weight characteristics of Lena population of Acipenser baerii Brandt, 1869
Lena I. Sidorova
Yakut branch of All-Russian Federal Research Institute of Fisheries and oceanography («YakutskNIRO»), Yakutsk, Russia,
Head of the Laboratory of Aquatic Bioresources, SPIN-code:5096-7558, AuthorID:856888
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Alexander F. Kirillov
Yakut branch of All-Russian Federal Research Institute of Fisheries and oceanography («YakutskNIRO»), Yakutsk, Russia,
PhD of Biological Sciences, Associate Professor, leading researcher, SPIN-code: 3948-6848, AuthorID: 856924
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Mikhail M. Ksenofontov
Yakut branch of All-Russian Federal Research Institute of Fisheries and oceanography («YakutskNIRO»), Yakutsk, Russia,
Chief Specialist of the Laboratory of Aquatic Bioresources
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Abstract. Industrial and recreational fishing of the Acipenser baerii in its habitat is permitted only in the Lena River basin; the remaining populations are included in the Red Book of Russia. The largest sturgeon fishery is developed in the lower reaches and in the river delta. Lena. Being an endemic form adapted to living in the harsh climatic conditions of Siberia, the Lena population of Acipenser baerii is of high scientific interest. The Acipenser baerii is a particularly valuable fish species and occupies an important place as an object of reproduction during compensatory measures and is in high demand in aquaculture. The study was carried out in the middle, lower and delta of the Lena River. The purpose of the work was to clarify the average weight of the commercial size of Acipenser baerii for use in calculating compensatory measures to restore the disturbed state of aquatic biological resources as a result of economic activities. The methods used to determine the size and age status of Acipenser baerii are generally accepted - the body length was measured from the end of the snout to the projection of the end of the middle rays of the caudal fin (fishing length). Age was determined by cuttings of the marginal ray of the pectoral fin. As a result of research, Acipenser baerii in control catches of 2016-2023. represented by ages 1+-27+ years with a length of 18.5-111.0 cm and a weight of 29-6960 g. Commercial size Acipenser baerii in the Lena river is found at the age of 14+-27+ years with a body length of 62.0-111.0 cm (73.56±1.97). The average weight of Acipenser baerii of commercial size in the river was determined. Lena, which amounted to 2856.5 g. When compensating measures, it is recommended to use the average weight, rounded to 3 kg.
Keywords: river Lena, middle course of the Lena river, lower course of the Lena river, acipenser baerii, fishing size, weight, age, acipenser baerii catch, average weight of acipenser baerii, endemic form
© Sidorova L. I., Kirillov A. F., Ksenofontov M. M., 2024
The article was submitted 10.04.2024, approved after reviewing 23.04.2024 accepted for publication 10.06.2024.
MARINE POWER PLANTS AND THEIR ELEMENTS (MAIN AND AUXILIARY)
Original article
DOI: doi.org/10.48612/dalrybvtuz/2024-68-15
Analysis of the features of the working cycle of marine dual-fuel low-speed diesels
Dmitry K. Glazyk
Far Eastern State Technical Fisheries University, Vladivostok, Russia,
PhD in Engineering Sciences, head of department "Ship Power Plants", Associate Professor
e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
Abstract. The author considers the tanker fleet as the most promising in ensuring energy independence and competitive trade on world markets. Important information is provided about energy sources both traditional in marine power plants and gaining popularity. The theoretical cycles of low-speed dual-fuel diesels using different energy sources are considered. The paper also presents the results of an analysis of the operating cycles of marine low-speed diesels based on the experience of operating a series of dual-fuel diesels X50DF and X72DF.
Keywords: low-speed diesel engines, dual-fuel diesel engines, marine diesel duty cycle
© Glazyk D. K., 2024
The article was submitted 01.06.2024, approved after reviewing 13.06.2024 accepted for publication 14.06.2024.
Original article
DOI: doi.org/10.48612/dalrybvtuz/2024-68-16
Low level of crew training is a prerequisite for ship equipment failure
Boris I. Rudnev
Far Eastern State Technical Fisheries University, Vladivostok, Russia,
Doctor of Technical Sciences, Professor, Professor of Department of refrigeration equipment, condition and heat transfer, Honored Worker of Fisheries of Russia, W-3274-2017, SPIN-code: 2797-1790, AuthorID: 423385
e-mail: роvаliсhinа@mаil.ru
Abstract. The development of merchant shipping activities, carried out under existing conditions by ships flying the Russian flag, places new demands on the quality of operation of their ship technical equipment. In this work, using the example of a specific emergency case, we examine shortcomings in some aspects of the training and labor discipline of the crews of sea vessels, which led to the accident in this particular case. Separate organizational and legal measures are proposed to increase the accident-free ship power plants usage.
Keywords: merchant shipping, human factor, ergatic element, ship technical equipment, competence
© Rudnev B. I., 2024
The article was submitted 01.06.2024, approved after reviewing 14.06.2024 accepted for publication 20.06.2024.