Problems of fisheries最新文献_第7页

Growth and commercial size of the Silver crucian carp Carassius gibelio, (Cyprinidae) Amur river 阿穆尔河鲫鱼(鲤科)的生长和商业规模

Problems of fisheries Pub Date : 2022-12-13 DOI: 10.36038/0234-2774-2022-23-4-164-185

N. N. Semenchenko, E. Ostrovskaya

{"title":"Growth and commercial size of the Silver crucian carp Carassius gibelio, (Cyprinidae) Amur river","authors":"N. N. Semenchenko, E. Ostrovskaya","doi":"10.36038/0234-2774-2022-23-4-164-185","DOIUrl":"https://doi.org/10.36038/0234-2774-2022-23-4-164-185","url":null,"abstract":"This paper informs about characteristic of linear and weight growth of Amur silver crucian carp on the basis of the L. von Bertalanffy and I. I. Schmalhausen’s growth equations. For this description, the material collected in the period from 1997 to 2022 on the territory of two districts of the Amur River – in the watercourses of the Sredneamurskaya floodplain system and in the lower part of the Lower Amur was used. The main characteristics of the growth of the silver crucian carp is sexual dimorphism and compensatory growth. The maximum observed body length (Ad) of the Amur River silver crucian carp is 40 cm, body weight 2,1 kg. Differences were found in the indicators of linear, weight growth and growth rate of silver crucian carp living in the watercourses of the Middle Amur Lowland and in the lower part of the Lower Amur. Based on the coefficients of the growth equations, the coefficients of natural mortality for each year of life of females and males of silver crucian carp are calculated. The age of sexual maturity of females is 6 years. The commercial length of female silver crucian carp of the Middle Amur lowland, consistent with the age of mass maturation and the maximum biomass of generations should be equal to 20 cm, in the lower part of the Lower Amur – 23 cm.","PeriodicalId":129863,"journal":{"name":"Problems of fisheries","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125058862","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

Preliminary assessment of the number and commercial stock of Yellowcheck Elopichthys bambusa (Richardson, 1845) (Cypriniformes, Cyprinidae) Amur river 阿穆尔河黄鳝(鲤形，鲤科)数量和商业资源的初步评价

Problems of fisheries Pub Date : 2022-12-13 DOI: 10.36038/0234-2774-2022-23-4-209-220

N. N. Semenchenko, E. Ostrovskaya, A. Kasatkina, E. V. Ershova, S. Sirotin

{"title":"Preliminary assessment of the number and commercial stock of Yellowcheck Elopichthys bambusa (Richardson, 1845) (Cypriniformes, Cyprinidae) Amur river","authors":"N. N. Semenchenko, E. Ostrovskaya, A. Kasatkina, E. V. Ershova, S. Sirotin","doi":"10.36038/0234-2774-2022-23-4-209-220","DOIUrl":"https://doi.org/10.36038/0234-2774-2022-23-4-209-220","url":null,"abstract":"Yellowcheck Elopichthys bambusa (Richardson, 1845) is a valuable commercial species. In 2020, after more than twenty years of a ban on fishing, the yellowcheck removed from the list of fish in the Red Book of Russia. Based on the data of scientific research surveys by nets (2437 catches) of 2010–2021, an increase in its number in recent years in the Russian part of the Amur River basin, compared with the end of the XX century, is shown. This is confirmed by the expansion of the species’ range both up and down the Amur, as well as by the occurrence of yellowcheck migrants in the coastal waters of northwestern Sakhalin. At the same time, in absolute terms, the number of this predator is small. In order to solve the issue of introducing yellowcheck into the fishery, it is necessary to conduct studies to research many aspects of its biology, and, above all, growth, age structure, age of mass maturation, as well as to research the influence of Chinese fishing the current state of its biological resources. The obtained preliminary estimates of the commercial stock’s biomass of yellowcheck (9,2 tons) and its minimal possible catch (1,7 tons) allows starting these works.","PeriodicalId":129863,"journal":{"name":"Problems of fisheries","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131158850","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

Аbout the influence of the use of «zaezdok» type nets on the passing of the Рacific salmon producers to the springing territories in the Аmur and Аmur liman Аbout使用“zaezdok”型渔网对Рacific鲑鱼生产者向Аmur和Аmur里曼的春季地区转移的影响

Problems of fisheries Pub Date : 2022-12-13 DOI: 10.36038/0234-2774-2022-23-4-230-239

E. A. Zakharov, D. Shabelsky, N. L. Vacker, V. Polyanichko, V. S. Krasnov, V. Shevtsov, M. Mizyurkin, O. Kruchinin, V. Volotov

引用次数: 0

Macrozoobenthos of the Sakhalin bay of the Sea of Okhotsk in the zone of influence of Amur river waters 黑龙江水域影响区内鄂霍次克海库页湾大型底栖动物

Problems of fisheries Pub Date : 2022-12-13 DOI: 10.36038/0234-2774-2022-23-4-67-88

V. S. Labay, G. Shevchenko, D. Galanin, V. Chastikov, T. S. Shpilko, N. V. Troitzkaya

{"title":"Macrozoobenthos of the Sakhalin bay of the Sea of Okhotsk in the zone of influence of Amur river waters","authors":"V. S. Labay, G. Shevchenko, D. Galanin, V. Chastikov, T. S. Shpilko, N. V. Troitzkaya","doi":"10.36038/0234-2774-2022-23-4-67-88","DOIUrl":"https://doi.org/10.36038/0234-2774-2022-23-4-67-88","url":null,"abstract":"Structure, quantitative indicators, distribution features and main communities of macrozoobenthos of Sakhalin Bay (the Sea of Okhotsk) are described. Mollusks (mainly bivalves), crustaceans and sea urchins determined the total macrozoobenthos biomass. The main regularities of the macrozoobenthos distribution in the bay are given. Two zones are distinguished by hydrological characteristics, distribution of the composition and quantitative characteristics of macrozoobenthos, benthic communities, and according to the data of ordination analysis: the zone of localization of the runoff lens of the Amur River with a water salinity of less than 26 psu and the zone of distribution of typical marine waters. 9 benthic communities are described: the »estuarine-lagoonal» communities of Archaeomysis grebnitzkii + Haustorioides magnus + Potamocorbula amurensis, Potamocorbula amurensis, Macoma balthica + Cyrtodaria kurriana, Siliqua alta, the typically »marine» communities of Nephtys caeca, Serripes groenlandicus, Balanus crenatus and the communities of transitional type Saduria entomon and Echinarachnius parma, which are found in both hydrological zones. Predominantly filter feeders, with a significant role of detritus feeders and detritus feeders – filter feeders, form the trophic structure of macrozoobenthos. Trophic communities dominated by filter feeders - detritus feeders and detritus feeders are represented in the coastal area of the western part of the water area, the group of filter-feeders is localized seaward. Trophic communities with a predominance of filter feeders - detritus feeders and detritus feeders are represented in the entire depth range of the eastern part of the water area. Water salinity, soil type and depth are the main factors affecting the distribution and abundance of macrozoobenthos.","PeriodicalId":129863,"journal":{"name":"Problems of fisheries","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128824207","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

Researches of freshwater commercial fish species of the Amur river basin in 2018–2020 (biological state, abundance, distribution, and prospective targets of the fishery) 2018-2020年阿穆尔河流域淡水商业鱼类种类研究(生物状况、丰度、分布及渔业发展目标)

Problems of fisheries Pub Date : 2022-12-13 DOI: 10.36038/0234-2774-2022-23-4-186-208

E. Ostrovskaya, N. N. Semenchenko

引用次数: 0

Biological structure and abundance dynamics of Pacific rainbow smelt Osmerus dentex (Osmeridae) of the Amur river 阿穆尔河太平洋彩虹鱼的生物结构及丰度动态

Problems of fisheries Pub Date : 2022-12-13 DOI: 10.36038/0234-2774-2022-23-4-113-133

O. V. Vilkina

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Morphological differentiation of Amur fall Chum salmon juveniles Oncorhynchus keta (Salmonidae) of natural and hatchery origin 天然来源和孵育来源的秋鲑幼鱼形态分化

Problems of fisheries Pub Date : 2022-12-13 DOI: 10.36038/0234-2774-2022-23-4-221-229

P. Mikheev, M. D. Polygalova, A. Pomelova, N. V. Kostitsyna, E. V. Podorozhniuk

引用次数: 0

Biological structure and abundance dynamics of Pacific rainbow smelt Osmerus dentex (Osmeridae) of the Amur river 阿穆尔河太平洋彩虹鱼的生物结构及丰度动态

Problems of fisheries Pub Date : 2022-12-13 DOI: 10.36038/0234-2774-2022-23-4-134-163

E. Ostrovskaya

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Regularities of reproduction for fall Chum salmon Oncorhynchys keta from the Аmur river Аmur河秋鲑繁殖规律研究

Problems of fisheries Pub Date : 2022-12-13 DOI: 10.36038/0234-2774-2022-23-4-44-56

V. Ostrovsky, E. Podorozhnyuk, A. Shmigirilov

引用次数: 1

Size and age structure and population of the kaluga Huso dauricus and the Amur sturgeon Acipenser schrenckii (Acipenseridae) in the Amur river 阿穆尔河达乌尔鲟和黑龙江鲟(鲟科)的大小、年龄结构和种群分布

Problems of fisheries Pub Date : 2022-12-12 DOI: 10.36038/0234-2774-2022-23-4-33-43

V. N. Koshelev, D. V. Kotsyuk, N. V. Kolpakov

{"title":"Size and age structure and population of the kaluga Huso dauricus and the Amur sturgeon Acipenser schrenckii (Acipenseridae) in the Amur river","authors":"V. N. Koshelev, D. V. Kotsyuk, N. V. Kolpakov","doi":"10.36038/0234-2774-2022-23-4-33-43","DOIUrl":"https://doi.org/10.36038/0234-2774-2022-23-4-33-43","url":null,"abstract":"Based on research findings from 1963–2021 the analysis of size-age indicators, qualitative structure of populations and changes in the number of kaluga Huso dauricus and Amur sturgeon Acipenser schrenckii in the river was carried out. Amur. It is established that in the period from the 60s. last century to 2008–2011 in the kaluga and the Amur sturgeon in the Amur River, there was a reduction in the size range and number of age groups, the proportion of mature individuals, the level of replenishment of populations with juveniles and abundance. The main reason for these changes is INN fishing (illegal, unreported and unregulated). According to the results of research in 2021, it was revealed that the modern number of kaluga exceeded the figures of the 60s. last century. In the Amur sturgeon, the process of population growth has not yet reached the historical values noted in the 1960s–1970s, but exceeded the indicators of the 1980s and subsequent years. Despite the noted positive points, at present, the population of kaluga in the river. Amur is characterized by the smallest average size and age over 60 years of study. The situation is better for the Amur sturgeon, which is due to the lower interest of fishermen in this species and the large volume of release of its juveniles from sturgeon hatcheries (ORZ). The reason for the positive dynamics is the artificial reproduction that has been developing on the Amur over the past decade, as well as the introduced set of restrictions on the Pacific salmon fishery. To further increase the number of Kaluga and Amur sturgeon in the river. Amur, it is proposed to maintain the current volumes of artificial reproduction of sturgeons and extend the restrictive measures in the salmon fishery for at least the next 10 years.","PeriodicalId":129863,"journal":{"name":"Problems of fisheries","volume":"165 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":"115437877","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