{"title":"Pink salmon fishery Oncorhynchus gorbusha in Terpeniya Bay (Eastern Sakhalin)","authors":"A. A. Makoedov, A. A. Zhivoglyadov","doi":"10.36038/0234-2774-2023-24-4-81-92","DOIUrl":"https://doi.org/10.36038/0234-2774-2023-24-4-81-92","url":null,"abstract":"The significance of Terpeniya Bay in the salmon economy of the Sakhalin оblast is considered. The dynamics of pink salmon catches in this area for the period from 1978 to the present day is reflected. The circumstances of the organization of pink salmon fishery in Terpeniya Bay are considered. The variants for the decision of the questions connected with the optimum organization of fishing of one of the mass kinds of fishing are offered.","PeriodicalId":129863,"journal":{"name":"Problems of fisheries","volume":"52 9","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139527596","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
M. M. Piatinskii, A. I. Milovanov, U. N. Alexandrova
{"title":"Modeling of the dynamics of the stock and fishing of gobies (Gobiidae) in the sea of Azov in the conditions of ecological changes in the habitat","authors":"M. M. Piatinskii, A. I. Milovanov, U. N. Alexandrova","doi":"10.36038/0234-2774-2023-24-4-57-71","DOIUrl":"https://doi.org/10.36038/0234-2774-2023-24-4-57-71","url":null,"abstract":"The combined stock assessment approach to estimate and forecast the biomass and fisheries of the gobies population in Azov Sea are presented. Biomass stock assessment during the period 2015–2022 performed based on Pella-Tomlinson surplus production model within aprior parametrization by JABBA package. In terms of change the control parameter (from fisheries to environmental conditions) biomass forecasting done by main biological process modelling: spawning process by Ricker’s stock-recruitment model, instant natural mortality by Charnov approximation method, population annual weight gain by relative weight assumption. The current state of gobies stock biomass in Azov Sea during 2022 is depleted, estimated on level of B2022 = 12,5 ths. t., lower that limit reference point value Blim = 14,9 ths. t. Such depleted stock status can be just partial explained by overfishing during the 2016–2019. During the forecast period, 2023–2024, there is no scenarios exists to gobies population recovery, even in total fishery prohibition.","PeriodicalId":129863,"journal":{"name":"Problems of fisheries","volume":" 14","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139620142","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Zonal distribution of the stock of blue whiting (Micromesistius poutassou) in the North-East Atlantic in 2010–2020","authors":"A. A. Pronyuk","doi":"10.36038/0234-2774-2023-24-4-7-17","DOIUrl":"https://doi.org/10.36038/0234-2774-2023-24-4-7-17","url":null,"abstract":"In the management of the blue whiting fishery, the problem of exceeding the scientifically justified catch remains due to the lack of an agreement on national shares between Coastal States. In order to obtain additional data necessary to reach an agreement, a NEAFC Working Group was established by the Coastal States to form a report on the zonal distribution of the reserve. Until March 2022, a Russian specialist took part in the work of the group. The article analyzes the main results of the distribution of both international catches of blue whiting and biomass of the stock in accordance with the data of the international survey, according to the NEA economic, fishing zones and international waters for the period 2010–2020 was conducted. It was found out that during this period the largest part of the blue whiting of the stock was distributed in the fishing zone of the Faroe Islands, exclusive economic zones of the EU, Great Britain and economic zone of the Norway. The economic zones of Ireland (EU) and Great Britain were the main «holders» of the spawning stock with the most active fishing in the spring, while the Faroese fishing zone is the most significant zone through which the main migrations of a significant part of the stock pass throughout the year. The waters of the Norwegian economic zone were the main habitat of immature juveniles and feeding fish, to a somewhat lesser extent this applied to the waters of the Iceland economic zone. The results of this work can be used as a basis for dividing the total available catch of the blue whiting into national shares and can accelerate the achievement of an agreement between the Coastal States.","PeriodicalId":129863,"journal":{"name":"Problems of fisheries","volume":" 10","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139619737","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Assessment of the bream Abramis brama (cyprinidae) stock of the Nizhnekamsk reservoir with limited data available","authors":"Yu. A. Severov, K. V. Maidanov, K. A. Shevchuk","doi":"10.36038/0234-2774-2023-24-4-45-56","DOIUrl":"https://doi.org/10.36038/0234-2774-2023-24-4-45-56","url":null,"abstract":"An analytical assessment of the state of the bream stock in the Nizhnekamsk reservoir was carried out using the method for stocks with limited data – CMSY (Catch-based method). The results obtained indicate sufficient reliability of the use of this model for the bream stock, based on data from official catch statistics of this species. The calculations showed that during the history of exploitation of this population, fishing was carried out mainly in a zone biologically safe for the stock. Since 2017, the catch of bream has increased sharply and currently the fishing volumes are at their maximum values for all the years of the reservoir’s existence. The indicators of current estimates of the stock biomass and fishing mortality exceed their target guidelines and indicate that at the moment the biomass of the bream stock of the Nizhnekamsk reservoir is already in a biologically unsafe zone, and fishing mortality is twice the level of target exploitation.","PeriodicalId":129863,"journal":{"name":"Problems of fisheries","volume":" 5","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139620676","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
S. M. Goncharov, S. B. Popov, V. Peterfeld, N. Klyuchareva
{"title":"Assessment the state of the omul stock Coregonus migratorius in the waters of Northen Baikal according to hydroacoustic investigations","authors":"S. M. Goncharov, S. B. Popov, V. Peterfeld, N. Klyuchareva","doi":"10.36038/0234-2774-2023-24-4-72-80","DOIUrl":"https://doi.org/10.36038/0234-2774-2023-24-4-72-80","url":null,"abstract":"Recently in Lake Baikal there was observed decrease in population of the most abundant species among commercial fish – Baikal omul (Coregonus migratorius). That is why restrictive measures have been imposed on its catches. A hydroacoustic method based on hydroacoustic surveys was used to assess the evolution of the Omul population during the period of restrictive measures in one of the most productive fishery areas – the Northen Baikal. This work represented the results of three-year hydroacoustic research (2021, 2022 and 2023) in the first decade of June. Taking into account the confidence intervals for estimating the number and biomass of Omul, the stock in Northen Baikal is quite stable. The omul spatial distribution on the investigated areas is also stable.","PeriodicalId":129863,"journal":{"name":"Problems of fisheries","volume":"38 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139528421","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Features spawning of pollock Gadus chalcogrammus in the northern part of the sea of Okhotsk in the 2010s","authors":"A. Y. Sheibak","doi":"10.36038/0234-2774-2023-24-4-18-33","DOIUrl":"https://doi.org/10.36038/0234-2774-2023-24-4-18-33","url":null,"abstract":"A significant amount of data collected during spring complex surveys in the northern part of the Sea of Okhotsk allowed us to characterize pollock spawning in the period 2011–2020. It was found that, on average, during the period under review, caviar accumulations of various densities occupied up to 90% of the surveyed water area. In the spring period caviar on the early stages of development was found on a larger area of the studied landfill, with the exception of some marine stations, where it was absent from catches. At the same time accumulations of caviar on the late stages of development occupied a smaller area, and the densest concentrations indicating the beginning of spawning were noted in the waters off southwestern Kamchatka and above the Swan Hill. In the waters off the West Kamchatka coast 75% of the caviar was located above depths of 50–150 m and only 22% – outside the shelf. A similar distribution of caviar was noted in the North Okhotomorsky district – 76% developed within the shelf and 31% – over the deep-water part of the district. In the Shelikhov Bay the densest concentrations of caviar were located above the deep-water trough during all years of research.","PeriodicalId":129863,"journal":{"name":"Problems of fisheries","volume":"52 44","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139527585","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Conceptual vision of the development prospects of the organizational and economic mechanism of development freshwater aquaculture in Russia","authors":"Концептуальное Видение, Перспективы Развития","doi":"10.36038/0234-2774-2023-24-2-183-188","DOIUrl":"https://doi.org/10.36038/0234-2774-2023-24-2-183-188","url":null,"abstract":"Against the background of depletion of reserves of aquatic biological resources of inland water bodies, the freshwater aquaculture industry is gaining increasing importance in ensuring the country’s population. Its development should be manageable in nature, which is achieved through the action of the organizational and economic mechanism. The author outlined the tasks of the development of the industry and proposed directions for improving the organizational and economic mechanism of development, which will contribute to their most effective solution. Among them are financial measures with updated criteria for subsidizing resource support and information support for the aquabusiness. Together with measures to improve the efficiency of production of freshwater aquaculture products, this will increase the reliability of the implementation of strategies and the general concept of industry development.","PeriodicalId":129863,"journal":{"name":"Problems of fisheries","volume":"50 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114977212","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Trends and specifics of fish products prices in Russia","authors":"A. Mnatsakanyan, A. Karlov, A. Kharin","doi":"10.36038/0234-2774-2023-24-2-189-195","DOIUrl":"https://doi.org/10.36038/0234-2774-2023-24-2-189-195","url":null,"abstract":"The purpose of the paper is to describe the patterns of price formation for fish products, which are basic food products. Our analysis uses the method of decomposing price dynamics into two components: a trend that is explained by long-term factors and short-term volatility. It is desirable to conclude that the rise in prices for fish products, which in recent years has outpaced general food inflation, has led to a marked reduction in the consumption of fish products. Price growth not only outpaced general food inflation, but was highly volatile. Our study of the dynamics of prices for the most popular fish product – frozen cut fish revealed a cyclical change in prices against the background of its exponential growth and an increase in the spread of price changes relative to the trend. These features pose a threat to food security, since the domestic fish industry as a whole, having achieved self-sufficiency in the country with fish products, has not yet solved the problem of its low availability for consumers.","PeriodicalId":129863,"journal":{"name":"Problems of fisheries","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115050380","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
A. V. Zhigin, M. V. Sytova, Y. Esavkin, S. Grikshas, A. S. Petrov
{"title":"The effect of the feed additive «Kormogran selen-3» on fish breeding, morphometric indicators and marketable qualities of Rainbow trout","authors":"A. V. Zhigin, M. V. Sytova, Y. Esavkin, S. Grikshas, A. S. Petrov","doi":"10.36038/0234-2774-2023-24-2-154-172","DOIUrl":"https://doi.org/10.36038/0234-2774-2023-24-2-154-172","url":null,"abstract":"An experimental cultivation of rainbow trout was carried out using the selenium-containing feed additive «Kormogran Selen-3». According to a number of morphometric parameters, there were no significant true differences between the experimental and control groups, however, an intensification of fat metabolism in the trout of the experimental group was established, which slowed down the process of accumulation of intracavitary fat by individuals. This caused some lag in the process of total mass accumulation and some decrease in fish-breeding and biological indicators. At the same time, there was no decrease in the rate of linear growth and overall development of fish. The main accumulation of selenium occurred in the liver, where its content increased by 613,9 times (from 1112 to 15363 μg/kg). At the same time, the content of this element in white muscles increased by 5,2 times, and in red – by 2 times, which indicates the possibility of intravital enrichment of muscle tissue of rainbow trout with selenium. The analysis of the quality of commercial fish and its nutritional value showed the advantages of the experimental batch in comparison with the control of the yield of edible parts, organoleptic evaluation of smoked products, which at the same time can be attributed to a functional product as a source of selenium.","PeriodicalId":129863,"journal":{"name":"Problems of fisheries","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129220986","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
B. I. Pokrovskiy, D. L. Shabelskiy, M. E. Shapovalov, A. M. Kaiko
{"title":"Development investigation of the terms of sustainable activity for the enterprise of fishing and processing of under exploited freshwater fish resources of Russia","authors":"B. I. Pokrovskiy, D. L. Shabelskiy, M. E. Shapovalov, A. M. Kaiko","doi":"10.36038/0234-2774-2023-24-2-196-202","DOIUrl":"https://doi.org/10.36038/0234-2774-2023-24-2-196-202","url":null,"abstract":"Small fishering companies sustainable developments towards main figures of the Strategy 2030 are the actual research problem because of the next essential reasons: – necessity of effective and allowable catching of Russian Federation fresh water assimilated and under-assimilated fish resources; allowable catching of the mentioned fish resources could reach, according skilled expert estimations, up to one million tons; and this fishering stocks’d produce effective business income for local small fishering business and also produce healthy food products for local and regional food markets; sustainable development of the small local fisheries companies towards aims of Strategy 2030 could get Govenmental sources financial and consulting support.","PeriodicalId":129863,"journal":{"name":"Problems of fisheries","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128818865","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}