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  • Bacterial starter cultures as a basis for the development of probiotic fish products

    Lavrukhina, E.V.; Zarubin, N.Yu.; Bredikhina, O.V.; Grinevich, A.I. (Russian Federal Research Institute of Fisheries and Oceanography (VNIRO), 2022)
    In food biotechnology, special attention is paid to biotransformation of bacterial starter cultures by promising strains for obtaining food products with improved quality characteristics and functionality. Bacterial starters can be used in biotransformation to increase the storage life of fish products, improving their organoleptic characteristics and increasing their nutritional value due to the formation of their life activity metabolites, which are the main factor of bioconservation and synthesis of vitamins and other biologically active substances. Probiotic characteristics of bacterial starter cultures have a significant impact on optimization of the microbiological status of the human digestive tract, which helps to stimulate the immune system and maintain a healthy lifestyle. The use of industrially valuable strains of bioprotective probiotic microorganisms is a promising biotechnological trend. This trend is related to the interest of the population of the Russian Federation in probiotic products.
  • On the justification of sub-freezing temperatures for fish

    Bindyukova, E.D.; Arkhipov, L.O. (Russian Federal Research Institute of Fisheries and Oceanography (VNIRO), 2022)
    The article presents data obtained as a result of experimental work to determine the cryoscopic temperatures of the studied fish species and temperature regimes of frozen fish storage, calculated with the requirements of TR EAEU 040/2016 taken into account.
  • Assessment of the surface water quality of the Bolshoy and Maly Vilyui lakes in 2021-2022

    Pokhodina, M.A. (Russian Federal Research Institute of Fisheries and Oceanography (VNIRO), 2022)
    The study of the hydrochemical regime of a water body is a prerequisite for its monitoring. Hydrochemical indicators indicate water quality and dynamics of intrabasin processes. Among the main hydrochemical characteristics are: oxygen regime, the concentration of biogenic elements and organic substances in water.
  • Updating approaches to the stock assessment and calculation of recommended catch of brine shrimp and brine shrimp at the cyst stage (species of the genus Artemia)

    Maznikova, O.A.; Lukerina, G.V.; Parshin-Chudin, A.V.; Kutsanov, K.V. (Russian Federal Research Institute of Fisheries and Oceanography (VNIRO), 2022)
    The proposed recommendations are seen as a logical development of research aimed at assessing the state of the resource base and catch forecasting for brine shrimp and brine shrimp at the stage of cysts for different timing. Their special feature is the use of a unified methodical approach which takes into account the qualitative composition of populations and the background conditions of their habitat.
  • Current state of the resource base and fisheries of invertebrates in inland water bodies

    Maznikova, O.A. (Russian Federal Research Institute of Fisheries and Oceanography (VNIRO), 2022)
    The article provides with the up-to-date data characterizing the current state of commercial invertebrates in inland waters and the level of its exploitation. The author briefly outlines the issues of regulation of industrial fishing.
  • Assessment of the spawning efficiency of river perch (Perca fluviatilis L.) in the Kuibyshev Reservoir

    Telezhnikova, T.A.; Severov, Yu.A. (Russian Federal Research Institute of Fisheries and Oceanography (VNIRO), 2022)
    This article identifies the factors affecting the efficiency of its spawning in modern conditions of the Kuibyshev Reservoir, based on data on the number of perch larvae.
  • Characteristics of amateur fishing catches in the Cheboksary Reservoir within the boundaries of the Nizhny Novgorod Region

    Smetanina, A.V.; Kataev, R.K. (Russian Federal Research Institute of Fisheries and Oceanography (VNIRO), 2022)
    The paper analyzes the amateur fishing catches in the Cheboksary Reservoir within the boundaries of the Nizhny Novgorod Region. The seasonal dynamics of catch, species and size composition of captured aquatic biological resources are considered. Information on the number of visits to the water body and the fishing gear used is also provided.
  • Features of distribution and daily vertical migrations of Pacific salmon in the Aleutian waters of the Pacific Ocean in the winter 2022 according to hydro acoustic measurements

    Polyanichko, V.V.; Somov, A.A. (Russian Federal Research Institute of Fisheries and Oceanography (VNIRO), 2022)
    The article provides the acoustic assessments of the population and biomass of Pacific salmon in the Aleutian waters of the Pacific Ocean in the winter 2022. Spatial distributions of the main salmon species were obtained, daily vertical migrations were considered.
  • Assessment of intraspecific composition of regional groups of juvenile chum salmon (Oncorhynchus keta) in the Sea of Okhotsk in the autumn of 2019

    Denisenko, A.D.; Pilganchuk, O.A.; Zikunova, O.V.; Muravskaya, U.O.; Savenkov, V.V.; Shpigalskaya, N.Yu. (Russian Federal Research Institute of Fisheries and Oceanography (VNIRO), 2022)
    The population and genetic structure of chum salmon in the main reproduction regions of the Russian Far East is presented based on the variability of eight microsatellite loci (Ssa20.19, One101, Oke3, Oki1b, Oki23, Ogo2G, Oke11, Ots102). Four main regional groups have been identified for the purposes of genetic identification. The accuracy of the estimates obtained is calculated for each of the four groups. The authors present the results of genetic identification according to the autumn trawl survey in the Sea of Okhotsk in 2019.
  • Assessment of the influence of temperature on the formation of the Eastern and Western Kamchatka pink salmon population in different life periods

    Dederer, N.A.; Shevlyakov, E.A. (Russian Federal Research Institute of Fisheries and Oceanography (VNIRO), 2022)
    The article presents the results of a comparative analysis of some databases describing SST (sea surface temperature) along the coast of Western Kamchatka with data from domestic weather stations carried out in the villages of Bolsheretsk, Icha, Sobolevo and Ozernovsky. These weather stations monitored air temperature and, in some years, water temperature in adjacent coastal areas. Databases ("10-days-SST", "MGDSST", "HIMSST") that adequately describe the actual curves of water temperature in the coastal area and air temperature in the area of concentration of the main spawning water basins and watercourses (ECMWF V5) have been identified. The selected databases were used to develop long-term series of temperature characteristics in the Kamchatka mainland and some areas of the Bering and Okhotsk Seas used by Western and Northeastern Kamchatka pink salmon at different stages of its life cycle.
  • Comparative analysis of fish-farming and biological indicators of male Siberian sturgeon in the second stage of sexual maturity

    Vorobiev, A.P. (Russian Federal Research Institute of Fisheries and Oceanography (VNIRO), 2022)
    The article presents the comparative results of two-year experimental works on obtaining sexual products from male Siberian sturgeons in conditions of a straight-flow basin industrial enterprise with annual total amount of 5500 degree-days are presented. The fish-farming, biological and morphological characteristics of the producers, their comparative indicators of the quality of sexual products, histological characteristics of the initial state of the gonads are given. It has been noted that the body weight and sperm movement time in Siberian sturgeon increase with age by 41.1 and 12.0 %, more ejaculate is produced by 21.8 %, the visual quality of sperm improves by 27.0 %, but the relative fecundity decreases by 11.6 %.
  • Assessment of the effect of absence of spawning on the fish-farming and biological characteristics of Siberian sturgeon Acipenser baerii (Brandt, 1869) offspring

    Vorobiev, A.P. (Russian Federal Research Institute of Fisheries and Oceanography (VNIRO), 2022)
    The article presents the results of studies on the effect of spawning season absence of female Siberian sturgeon of the Lena population on the fish-biological characteristics of the experimental group, as well as the grown-up juveniles in the conditions of industrial farms. The offspring of experimental females that underwent the resorption process, despite the lowest weight of embryos at hatching, maintained a high growth rate throughout the entire rearing period, comparable with juveniles of control groups.
  • Species diversity and relative number of the fingerlings in the Meshinsky Bay of the Kuibyshev Reservoir

    Kuzyuk, A.V.; Maidanov, K.V. (Russian Federal Research Institute of Fisheries and Oceanography (VNIRO), 2022)
    The article provides data analysis on the species composition and relative number of the fingerlings in the Meshinsky Bay of the Volga-Kama Reach of the Kuibyshev Reservoir during the research period from 2019 to 2021. The total number of species in the studied years was 19, among them the bleak, the Black Sea puffy-cheeked needle-fish, roach and the Black Sea-Caspian seal were dominant. The highest value of the Shannon Diversity index was noted in 2020.
  • The state of amateur fishing in the Gorky Reservoir within the boundaries of the Nizhny Novgorod Region

    Kataev, R.K. (Russian Federal Research Institute of Fisheries and Oceanography (VNIRO), 2022)
    The article presents materials on the assessment of the current state of amateur fishing in the Gorky Reservoir within the boundaries of the Nizhny Novgorod Region for 2018-2022. The seasonal dynamics of visits to the reservoir, the fishing gear used, the volume and structure of amateur fishing catches are considered.