База данных: Электронная библиотека
Страница 9, Результатов: 88
Отмеченные записи: 0
81.
Подробнее
S21
Sapozhnikov, V.V.
Hydrochemical Methods of the Bioproductivity Assessment in Fishing Grounds of the World Ocean [Электронный ресурс] / Sapozhnikov, V.V. // Modern methods for assessing the biological productivity of waters in industrial areas of the World ocean: VNIRO proceedings. - M.: VNIRO Publishing, 2014. - V. 152. - P. 3-14. - 2014
~РУБ Article
Рубрики: Hydrochemistry
Bioproductivity
Fishery
World ocean
Calculations
Stocks
Аннотация: The article presents not only theoretical background for the primary production (PP) assessment based on hydrochemical indices, but also numerous examples of the PP assessment for polar waters, upwelling zones, and ultraoligotrophic tropical waters. All advantages of the PP assessment based on hydrochemical parameters are shown, including a better representation and a more thorough assessment of PP in the Wordld ocean.
S21
Sapozhnikov, V.V.
Hydrochemical Methods of the Bioproductivity Assessment in Fishing Grounds of the World Ocean [Электронный ресурс] / Sapozhnikov, V.V. // Modern methods for assessing the biological productivity of waters in industrial areas of the World ocean: VNIRO proceedings. - M.: VNIRO Publishing, 2014. - V. 152. - P. 3-14. - 2014
Рубрики: Hydrochemistry
Bioproductivity
Fishery
World ocean
Calculations
Stocks
Аннотация: The article presents not only theoretical background for the primary production (PP) assessment based on hydrochemical indices, but also numerous examples of the PP assessment for polar waters, upwelling zones, and ultraoligotrophic tropical waters. All advantages of the PP assessment based on hydrochemical parameters are shown, including a better representation and a more thorough assessment of PP in the Wordld ocean.
82.
Подробнее
K77
Kotenev, B.N.
On Future State of Mass Hydrobiont Populations in Highly-Productive Areas of the World Ocean [Электронный ресурс] / Kotenev, B.N., Krovnin, A.S., Maslennikov, V.V., Mordasova, N.V. // Modern methods for assessing the biological productivity of waters in industrial areas of the World ocean: VNIRO proceedings. - M.: VNIRO Publishing, 2014. - V. 152. - P. 209-248. - 2014
~РУБ Article
Рубрики: World ocean
Bioproductivity
Hydrobionts
Climate
Stocks
Fishery
Аннотация: The long-term linkages between climatic and oceanic processes in the North Atlantic, North Pacific, South Pacific (SP), and Antarctic waters for the 1950-2012 period have been studied. Based on the revealed relationships between year class strength of mass hydrobiont populations in these regions and climate variations, their state for the next few decades was assessed. In the Northeast Atlantic (NEA), the population of Norwegian spring-spawning herring (NSSH) will possibly be recruited with some strong year classes until the mid-2020s. However, the tendency toward decrease in stock biomass will continue. The biomass of Northeast Arctic cod (NEA cod) will increase, owing to appearance of strong year classes. In the Northwest Pacific, after 2017-2020 there will be two- or threeford (even four- or fivefold, under the present level of poaching) decline of the Asian salmon stocks. The main walleye pollock stocks will increase after 2017 due to appearance of stronger year classes. In the South Pacific, the oceanic horse mackerel population will remain at a low level during the next 15-20 years. The Antarctic krill stocks will grow and become more available for commercial exploitation.
Доп.точки доступа:
Krovnin, A.S.
Maslennikov, V.V.
Mordasova, N.V.
K77
Kotenev, B.N.
On Future State of Mass Hydrobiont Populations in Highly-Productive Areas of the World Ocean [Электронный ресурс] / Kotenev, B.N., Krovnin, A.S., Maslennikov, V.V., Mordasova, N.V. // Modern methods for assessing the biological productivity of waters in industrial areas of the World ocean: VNIRO proceedings. - M.: VNIRO Publishing, 2014. - V. 152. - P. 209-248. - 2014
Рубрики: World ocean
Bioproductivity
Hydrobionts
Climate
Stocks
Fishery
Аннотация: The long-term linkages between climatic and oceanic processes in the North Atlantic, North Pacific, South Pacific (SP), and Antarctic waters for the 1950-2012 period have been studied. Based on the revealed relationships between year class strength of mass hydrobiont populations in these regions and climate variations, their state for the next few decades was assessed. In the Northeast Atlantic (NEA), the population of Norwegian spring-spawning herring (NSSH) will possibly be recruited with some strong year classes until the mid-2020s. However, the tendency toward decrease in stock biomass will continue. The biomass of Northeast Arctic cod (NEA cod) will increase, owing to appearance of strong year classes. In the Northwest Pacific, after 2017-2020 there will be two- or threeford (even four- or fivefold, under the present level of poaching) decline of the Asian salmon stocks. The main walleye pollock stocks will increase after 2017 due to appearance of stronger year classes. In the South Pacific, the oceanic horse mackerel population will remain at a low level during the next 15-20 years. The Antarctic krill stocks will grow and become more available for commercial exploitation.
Доп.точки доступа:
Krovnin, A.S.
Maslennikov, V.V.
Mordasova, N.V.
83.
Подробнее
S49
Sergieva, Z.M.
The Main Stages of Development of Restocking of Natural Fish Resources in Russia [Электронный ресурс] / Sergieva, Z.M., Burlachenko, I.V., Nikolaev, A.I., Yakhontova, I.V. // Artificial reproduction and aquaculture: VNIRO proceedings. - M.: VNIRO Publishing, 2015. - V. 153. - P. 3-25. - 2015
~РУБ Article
Рубрики: Bioresources
Reproduction
Russia
Hydraulic engineering
History
Stocks
Аннотация: History of the development of restocking of aquatic biological resources in Russian Federation is reviewed in the article. Main negative factors affecting on populations of valuable fish and their natural reproduction are specified. It is shown the fundamental role of science in the development of this direction of the fishery. It is given a description of the modern level of artificial reproduction, its forms in the different regions of the country, its problems and prospects of development.
Доп.точки доступа:
Burlachenko, I.V.
Nikolaev, A.I.
Yakhontova, I.V.
S49
Sergieva, Z.M.
The Main Stages of Development of Restocking of Natural Fish Resources in Russia [Электронный ресурс] / Sergieva, Z.M., Burlachenko, I.V., Nikolaev, A.I., Yakhontova, I.V. // Artificial reproduction and aquaculture: VNIRO proceedings. - M.: VNIRO Publishing, 2015. - V. 153. - P. 3-25. - 2015
Рубрики: Bioresources
Reproduction
Russia
Hydraulic engineering
History
Stocks
Аннотация: History of the development of restocking of aquatic biological resources in Russian Federation is reviewed in the article. Main negative factors affecting on populations of valuable fish and their natural reproduction are specified. It is shown the fundamental role of science in the development of this direction of the fishery. It is given a description of the modern level of artificial reproduction, its forms in the different regions of the country, its problems and prospects of development.
Доп.точки доступа:
Burlachenko, I.V.
Nikolaev, A.I.
Yakhontova, I.V.
84.
Подробнее
S56
Shumilina, A.K.
Artificial Reproduction of Fishes in the Northwest of Russia [Электронный ресурс] / Shumilina, A.K., Ostroumova, I.N., Kostuynichev, V.V., Bogdanova, V.A. // Artificial reproduction and aquaculture: VNIRO proceedings. - M.: VNIRO Publishing, 2015. - V. 153. - P. 26-41. - 2015
~РУБ Article
Рубрики: North-West of Russia
Fishes
Reproduction
Biotechnologies
Stocks
Fishery
Аннотация: In the article are represented the data about the history of the formation of artificial reproduction in the northwest of Russia, the brief characteristic of the basic objects of breeding, development of the biotechnology of the cultivation of young fish and new methods of artificial reproduction is given. The revue of the function of the reproductiv complex of region, its role in preservation and increase of store of valuable commercial fishes, the existing problems and the methods of their solution is represented.
Доп.точки доступа:
Ostroumova, I.N.
Kostuynichev, V.V.
Bogdanova, V.A.
S56
Shumilina, A.K.
Artificial Reproduction of Fishes in the Northwest of Russia [Электронный ресурс] / Shumilina, A.K., Ostroumova, I.N., Kostuynichev, V.V., Bogdanova, V.A. // Artificial reproduction and aquaculture: VNIRO proceedings. - M.: VNIRO Publishing, 2015. - V. 153. - P. 26-41. - 2015
Рубрики: North-West of Russia
Fishes
Reproduction
Biotechnologies
Stocks
Fishery
Аннотация: In the article are represented the data about the history of the formation of artificial reproduction in the northwest of Russia, the brief characteristic of the basic objects of breeding, development of the biotechnology of the cultivation of young fish and new methods of artificial reproduction is given. The revue of the function of the reproductiv complex of region, its role in preservation and increase of store of valuable commercial fishes, the existing problems and the methods of their solution is represented.
Доп.точки доступа:
Ostroumova, I.N.
Kostuynichev, V.V.
Bogdanova, V.A.
85.
Подробнее
L81
Litvinenko, A.I.
Artificial reproduction of the valuable fish species of Ural and Siberia: current status, problems and perspectives [Электронный ресурс] / Litvinenko, A.I., Semenchenko, S.M., Kapustina, Ya.A. // Artificial reproduction and aquaculture: VNIRO proceedings - M.: VNIRO Publishing, 2015. - V. 153. - P. 74-84. - 2015
~РУБ Article
Рубрики: Fishes
Ural
Siberia
Reproduction
Stocks
Pisciculture
Аннотация: The article presents an analysis of the state of artificial reproduction of valuable fish species of the Urals and Siberia. There have been two consistent trends: decrease in production larval and juvenile in water bodies in the region and the reduction stocks of valuable fish species. Gosrybtsentr presents innovative initiative to intensify the development of artificial reproduction technologies.
Доп.точки доступа:
Semenchenko, S.M.
Kapustina, Ya.A.
L81
Litvinenko, A.I.
Artificial reproduction of the valuable fish species of Ural and Siberia: current status, problems and perspectives [Электронный ресурс] / Litvinenko, A.I., Semenchenko, S.M., Kapustina, Ya.A. // Artificial reproduction and aquaculture: VNIRO proceedings - M.: VNIRO Publishing, 2015. - V. 153. - P. 74-84. - 2015
Рубрики: Fishes
Ural
Siberia
Reproduction
Stocks
Pisciculture
Аннотация: The article presents an analysis of the state of artificial reproduction of valuable fish species of the Urals and Siberia. There have been two consistent trends: decrease in production larval and juvenile in water bodies in the region and the reduction stocks of valuable fish species. Gosrybtsentr presents innovative initiative to intensify the development of artificial reproduction technologies.
Доп.точки доступа:
Semenchenko, S.M.
Kapustina, Ya.A.
86.
Подробнее
B96
Burtsev, I.A.
Recommendations on Improving the Efficiency of Industrial Sturgeon Reproduction [Электронный ресурс] / Burtsev, I.A. // Artificial reproduction and aquaculture: VNIRO proceedings - M.: VNIRO Publishing, 2015. - V. 153. - P. 165-174. - 2015
~РУБ Article
Рубрики: Sturgeons
Reproduction
Efficiency
Hatcheries
Stocks
Fishery
Аннотация: Work on the artificial reproduction of sturgeons began in Russia for almost a century and a half ago which resulted in a certain success. But in the recent two decades after the disintegration of the USSR, followed by the weakening of comprehensive measures on conservation and rational use of sturgeons, they found themselves as endangered species as a consequence of the effect of anthropogenic factors. Their commercial reproduction does not compensate the decline in natural reprodudtion, much less the intensive poaching. Recovery of stugeon stocks up to a level allowed their commercial fishery to be made, provided that the poaching could be eliminated, is only possible through a significant increase in efficiency of industrial sturgeon reproduction. It can be achieved owing to the implementation of the proposed methods which would provide better quality and viability of released juveniles.
B96
Burtsev, I.A.
Recommendations on Improving the Efficiency of Industrial Sturgeon Reproduction [Электронный ресурс] / Burtsev, I.A. // Artificial reproduction and aquaculture: VNIRO proceedings - M.: VNIRO Publishing, 2015. - V. 153. - P. 165-174. - 2015
Рубрики: Sturgeons
Reproduction
Efficiency
Hatcheries
Stocks
Fishery
Аннотация: Work on the artificial reproduction of sturgeons began in Russia for almost a century and a half ago which resulted in a certain success. But in the recent two decades after the disintegration of the USSR, followed by the weakening of comprehensive measures on conservation and rational use of sturgeons, they found themselves as endangered species as a consequence of the effect of anthropogenic factors. Their commercial reproduction does not compensate the decline in natural reprodudtion, much less the intensive poaching. Recovery of stugeon stocks up to a level allowed their commercial fishery to be made, provided that the poaching could be eliminated, is only possible through a significant increase in efficiency of industrial sturgeon reproduction. It can be achieved owing to the implementation of the proposed methods which would provide better quality and viability of released juveniles.
87.
Подробнее
S70
Sologub, D.
Distribution and Age Structure of Euphausiids Larvae at the Western Antarctic Peninsula (Subarea 48.1) [Электронный ресурс] / Sologub, D. // Commercial species and their biology: VNIRO proceedings. - M.: VNIRO Publishing, 2015. - V. 154. - P. 3-15. - 2015
~РУБ Article
Рубрики: Krill
Distribution
Stocks
Antarctic
Climate
Ecosystems
Аннотация: Euphausiids (Euphausiacea) are the key species in the trophic structure of ecosystems of the Southern Ocean. The data on the distribution and age structure of Euphausiids larvae were collected during R/V "Polarstern" expedition in January 2011 in the West Antarctic Peninsula region. Three types of distribution were found out among the four Euphausiids species: offshore (T. macrura and E. frigida), inshore (E. crystallorophias) and distribution at the shelf slope (E. superba). The densities of E. superba larvae in 2011 were higher than the results of previous studies in the 70's and 80's. This indicates a high recruitment rates in spite of rapid climatic changes in the Antarctic Peninsula region.
S70
Sologub, D.
Distribution and Age Structure of Euphausiids Larvae at the Western Antarctic Peninsula (Subarea 48.1) [Электронный ресурс] / Sologub, D. // Commercial species and their biology: VNIRO proceedings. - M.: VNIRO Publishing, 2015. - V. 154. - P. 3-15. - 2015
Рубрики: Krill
Distribution
Stocks
Antarctic
Climate
Ecosystems
Аннотация: Euphausiids (Euphausiacea) are the key species in the trophic structure of ecosystems of the Southern Ocean. The data on the distribution and age structure of Euphausiids larvae were collected during R/V "Polarstern" expedition in January 2011 in the West Antarctic Peninsula region. Three types of distribution were found out among the four Euphausiids species: offshore (T. macrura and E. frigida), inshore (E. crystallorophias) and distribution at the shelf slope (E. superba). The densities of E. superba larvae in 2011 were higher than the results of previous studies in the 70's and 80's. This indicates a high recruitment rates in spite of rapid climatic changes in the Antarctic Peninsula region.
88.
Подробнее
B78
Borisov, V.M.
Dynamics of Stock and the Existing Harvest Control Rule of NEA Cod [Электронный ресурс] / Borisov, V.M. // Commercial species and their biology: VNIRO proceedings. - M.: VNIRO Publishing, 2015. - V. 155. - P. 20-30. - 2015
~РУБ Article
Рубрики: The Barents Sea
Cod
Stocks
Fishery
Regulation
Spawning
Аннотация: The setae of the mouthparts of juveniles and adults of the giant freshwater prawn Macrobrachium rosenbergii and the australian red claw crayfish Cherax quadricarinatus was examined. Prawn M. rosenbergii and crayfish C. quadricarinatus are important objects of world freshwater aquaculture. Main types of setae and its distribution on the mouthparts were determined. The interpretation of setae with relation to intensity and direction of mechanical impacts is given. The structures on the setae surface vary in dependence of mechanical load intensity. The following sequence of structures types as long thin setulas, short setulas, denticles, the absence of external elements combined with thick shorten setaes, have direct correlation with intensity of the mechanical impact. The presence of denticles and ordering short setulas indicates that only one side of setae is under the mechanical action. The fact of impact of significant body size transformation during ontogenesis on the setae distribution on the mouthparts was established. The tendency of length reduction and/or disappearance of setulas and denticles was observed. Lenth of setae decreases against the body size. The increase of number of setae takes place and tight grouping of main types of setae occurs. An assumption made that with increase of body size the efficiency of separate setulas decreases and, for adult individual, groups of setae should be considered as functional units.
B78
Borisov, V.M.
Dynamics of Stock and the Existing Harvest Control Rule of NEA Cod [Электронный ресурс] / Borisov, V.M. // Commercial species and their biology: VNIRO proceedings. - M.: VNIRO Publishing, 2015. - V. 155. - P. 20-30. - 2015
Рубрики: The Barents Sea
Cod
Stocks
Fishery
Regulation
Spawning
Аннотация: The setae of the mouthparts of juveniles and adults of the giant freshwater prawn Macrobrachium rosenbergii and the australian red claw crayfish Cherax quadricarinatus was examined. Prawn M. rosenbergii and crayfish C. quadricarinatus are important objects of world freshwater aquaculture. Main types of setae and its distribution on the mouthparts were determined. The interpretation of setae with relation to intensity and direction of mechanical impacts is given. The structures on the setae surface vary in dependence of mechanical load intensity. The following sequence of structures types as long thin setulas, short setulas, denticles, the absence of external elements combined with thick shorten setaes, have direct correlation with intensity of the mechanical impact. The presence of denticles and ordering short setulas indicates that only one side of setae is under the mechanical action. The fact of impact of significant body size transformation during ontogenesis on the setae distribution on the mouthparts was established. The tendency of length reduction and/or disappearance of setulas and denticles was observed. Lenth of setae decreases against the body size. The increase of number of setae takes place and tight grouping of main types of setae occurs. An assumption made that with increase of body size the efficiency of separate setulas decreases and, for adult individual, groups of setae should be considered as functional units.
Страница 9, Результатов: 88