Problems of fisheries最新文献_第8页

Тhe second Аmur complex ichthyological expedition – prerequisites and first results Тhe第二次Аmur复杂鱼类学考察-先决条件和初步结果

Problems of fisheries Pub Date : 2022-12-12 DOI: 10.36038/0234-2774-2022-23-4-16-32

D. V. Kotsyuk, N. V. Kolpakov

{"title":"Тhe second Аmur complex ichthyological expedition – prerequisites and first results","authors":"D. V. Kotsyuk, N. V. Kolpakov","doi":"10.36038/0234-2774-2022-23-4-16-32","DOIUrl":"https://doi.org/10.36038/0234-2774-2022-23-4-16-32","url":null,"abstract":"In 2018–2019 the second Amur ichthyological expedition has been prepared and is being conducted since 2020. The impetus for its organization was a sharp drop in the catches of Pacific salmons in the basin of the Amur River in 2017 and 2018, when after the maximum catch in 2016 (65,2 thousand tons), their catch decreased to 26,9 and 21,6 thousand tons, respectively. This required the adoption of urgent management decisions to preserve their reserves, as well as the expansion of the study of the Amur aquatic biological resources. The expedition has a complex character; the research covers the channel and accessory system of the middle and lower Amur, as well as Khanka Lake. Totally completed: about 5 thousand stations, more than 1,1 thousand hydrobiological samples were taken, about 40 thousand fish were subjected to bioanalysis. New data on the biology of Pacific salmon, smelts, freshwater and sturgeon fish species have been obtained and partially published (70 papers). A number of modern innovative research methods have also been introduced (the use of UAVs and GIS systems to account for Pacific salmon spawners, microchemical analysis of otoliths to assess the effectiveness of their artificial reproduction). The results obtained are of wide practical importance: they are used in the development of measures to regulate the fishing of various aquatic biological resources, including when amending the Fishing Rules.","PeriodicalId":129863,"journal":{"name":"Problems of fisheries","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115091670","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}

引用次数: 0

The current state of stocks and artificial reproduction of Sterlet in Russia 俄罗斯小鱼种群现状及人工繁殖情况

Problems of fisheries Pub Date : 2022-09-30 DOI: 10.36038/0234-2774-2022-23-3-5-30

A. Bykov, S. Brazhnik

引用次数: 2

Sockeye salmon Oncorhynchus nerka (Salmoniformes, Salmonidae) of continental coast of the Sea of Okhotsk 鄂霍次克海大陆海岸的红鲑(鲑科，鲑科)

Problems of fisheries Pub Date : 2022-09-30 DOI: 10.36038/0234-2774-2022-23-2-102-121

S. Marchenko

引用次数: 0

Modern commercial and biological characteristics of zander Sander lucioperca (L) of the Kuibyshev reservoir 古比雪夫水库潜蝇的现代商业特征和生物学特征

Problems of fisheries Pub Date : 2022-09-30 DOI: 10.36038/0234-2774-2022-23-3-91-101

F. M. Shakirova, O. Anokhina, A. Smirnov, G. D. Valieva

{"title":"Modern commercial and biological characteristics of zander Sander lucioperca (L) of the Kuibyshev reservoir","authors":"F. M. Shakirova, O. Anokhina, A. Smirnov, G. D. Valieva","doi":"10.36038/0234-2774-2022-23-3-91-101","DOIUrl":"https://doi.org/10.36038/0234-2774-2022-23-3-91-101","url":null,"abstract":" The article presents the research materials of pike perch r. Volga and the Kuibyshev reservoir and noted the changes that have occurred in its population. Prior to the creation of the reservoir in the conditions of the Middle Volga, male zander matured at the age of 5–6 years, females at 6–7 years. In the Kuibyshev reservoir, pike perch becomes sexually mature at the age of 4–5 years, and a small part of it matures at the age of three. In the reservoir, due to ecological plasticity and the ability to lay eggs in a wide temperature range, regardless of the level regime of the reservoir and the spawning substrate, a gradual increase in its biological indicators, abundance and reserves began to be noted. Improving the feeding conditions of zander in the reservoir contributed to earlier puberty, an increase in the absolute fecundity of fish and its abundance in the reservoir. This contributed to an increase in zander catches since 1974, which in 1985 reached a maximum of 517 tons (9,2% of the total fish catch in the reservoir). Sufficiently high catches of zander over the past 10–15 years indicate the stability of its stocks in the Kuibyshev reservoir, which currently tend to increase. The multi-age sizeweight composition of zander in the Kuibyshev reservoir is represented by both young and older individuals, and confirms that the population is in good condition. ","PeriodicalId":129863,"journal":{"name":"Problems of fisheries","volume":"60 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132850993","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}

引用次数: 3

Characteristics of fishery in open sea and conventional areas of the World ocean in 2020 according to satellite monitoring data and prospects for the development of the Russian fishery in these areas 根据卫星监测数据，2020年世界海洋公海和常规海域渔业的特点以及俄罗斯在这些地区渔业发展的前景

Problems of fisheries Pub Date : 2022-09-30 DOI: 10.36038/0234-2774-2022-23-3-70-90

M. M. Dubishchuk

{"title":"Characteristics of fishery in open sea and conventional areas of the World ocean in 2020 according to satellite monitoring data and prospects for the development of the Russian fishery in these areas","authors":"M. M. Dubishchuk","doi":"10.36038/0234-2774-2022-23-3-70-90","DOIUrl":"https://doi.org/10.36038/0234-2774-2022-23-3-70-90","url":null,"abstract":"One of the strategic goals of the Russian fishing industry in modern conditions is to expand the activities of the fishing fleet to the open ocean areas. Based on modern data from satellite monitoring of fishing vessels in the World Ocean for 2020, the paper provides a characteristic of the state of oceanic fisheries. The most active fishing zones in the open part of the World Ocean outside the exclusive economic zones of coastal states, which may be of interest for the development of domestic oceanic fishing, have been identified and described. The most active fishing takes place in the open areas of the World Ocean, which are not covered by the regulation of regional fisheries organizations, and especially active is the fishing for species that are not regulated by them. First of all, squid are such commercial species. Tunas and other pelagic predators are also promising species in open areas of the World Ocean. The main types of fishing vessels in the open ocean are longline fishing vessels, jigging vessels and purse seiners. The information provided will be in demand when organizing the fishing of biological resources in areas beyond national jurisdiction, as well as preparing exploratory research expeditions to promising fishing areas.","PeriodicalId":129863,"journal":{"name":"Problems of fisheries","volume":"97 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133301727","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}

引用次数: 0

Condition of Аmur sturgeon female gonads Аcipenser schrenckii Brandt from Аmur river in connection with evaluation of reproducibility Аmur河Аmur鲟鱼雌性腺Аcipenser schrenckii Brandt状况与可繁殖性评价

Problems of fisheries Pub Date : 2022-09-30 DOI: 10.36038/0234-2774-2022-23-3-122-130

V. Belyaev, K. E. Fedorov, A. Novosadova

引用次数: 0

Beaked redfish Sebastes mentella of the Irminger Sea – current view on the stock structure, its status and management measures 额明格尔海喙红鱼的种群结构、现状及管理措施

Problems of fisheries Pub Date : 2022-09-30 DOI: 10.36038/0234-2774-2022-23-3-56-69

A. Y. Rolskii

引用次数: 1

Guidance for the assessment of the megabenthos bycatch in the bottom trawl in the course of research surveys 海底拖网研究调查过程中巨型副渔获物评估指南

Problems of fisheries Pub Date : 2022-09-30 DOI: 10.36038/0234-2774-2022-23-3-179-192

D. Zakharov, I. Manushin, N. Strelkova, O. Zimina, K. S. Khacheturova, D. J. Blinova, L. Jørgensen

引用次数: 0

The brief results of the research of antarctic crabs in the Pacific sector of Antarctic 南极太平洋板块南极蟹类研究简述

Problems of fisheries Pub Date : 2022-09-30 DOI: 10.36038/0234-2774-2022-23-3-48-55

S. E. Anosov, N. N. Kukharev, V. Kirichenko

{"title":"The brief results of the research of antarctic crabs in the Pacific sector of Antarctic","authors":"S. E. Anosov, N. N. Kukharev, V. Kirichenko","doi":"10.36038/0234-2774-2022-23-3-48-55","DOIUrl":"https://doi.org/10.36038/0234-2774-2022-23-3-48-55","url":null,"abstract":"Russian research into the possibility for fishing of Antarctic crabs was started in 2010 in the South part of Atlantic Ocean (Anosov, 2012). Subsequently appeared the idea to study the possibility of crab fishing in the Pacific sector of Antarctica, where no one had previously conducted such studies, but it was known about by-catch of potentially commercial species of crabs to the longline (Anosov, 2015). The realization is came in the season of 2018/2019, when the first stage of the research program was completed. The purpose was to establish the species composition and the primary determination of the distribution of crabs in the area 88.2 and in the area 88.3. Crab fishing was carried out with the help of conical pots, which were set in 120 pieces in order. The average stagnation time was 32 hours 42 minutes. 3 species of crabs were occurred. Only one can be considered as potentially commercial species – Neolithodes yaldwini. As a result of these studies, data on the species composition, morphological parameters, bathymetric and spatial distribution of Antarctic species of crabs of the family Lithodidae were obtained for the first time.","PeriodicalId":129863,"journal":{"name":"Problems of fisheries","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117232614","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}

引用次数: 0

Fishery and the state of the Barents and Norwegian Seas cod stock 巴伦支海和挪威海鳕鱼种群的渔业和状况

Problems of fisheries Pub Date : 2022-09-30 DOI: 10.36038/0234-2774-2022-23-3-31-47

O. A. Bulatov, D. Vasilyev, Yury Kovalev, A. Chetyrkin

{"title":"Fishery and the state of the Barents and Norwegian Seas cod stock","authors":"O. A. Bulatov, D. Vasilyev, Yury Kovalev, A. Chetyrkin","doi":"10.36038/0234-2774-2022-23-3-31-47","DOIUrl":"https://doi.org/10.36038/0234-2774-2022-23-3-31-47","url":null,"abstract":"The assessment of the stock status and prospects for the fishery of the Barents Sea cod is characterized by significant uncertainty caused by the peculiarities of the age structure, which often led to significant differences in the results obtained using different models. As a result, this caused intense discussions both within the framework of the International Council for the Exploration of the Sea (ICES) and at the meetings of the Joint Norwegian-Russian Fisheries Commission. In 2021, at a specialized ICES workshop («benchmark» group), the input data and configuration of the main assessment model - SAM, were refined, related to the inclusion of additional information on older age groups. As a result, two models currently used by the ICES working group to estimate cod stock (SAM and TISVPA), which are very different in their approaches, showed that the number of generations born in 2004–2005 significantly decreased, which led to a decrease in cod biomass. An assessment of the prospects for the state of the stock, performed both on the basis of calculations using the SAM model and on the basis of an alternative approach using the AMO (Atlantic Multidecadal Oscillation Index), showed a high probability of further decline and stabilization of the spawning stock biomass (and catches) in the next 2–3 years, after which restoration of spawning stock biomass is likely due to sufficiently abumdante generations born in 2011 and 2014.","PeriodicalId":129863,"journal":{"name":"Problems of fisheries","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122097849","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}

引用次数: 0