База данных: Электронная библиотека
Страница 2, Результатов: 15
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11.
Подробнее
K23
Katugin, O.N.
Validation of Statistical Significance for the Influence of Climatic Factors on the Schoolmaster Gonate Squid (Berryteuthis magister) Fishery Capacity off the Kuril Islands [Электронный ресурс] / Katugin, O.N., Kulik, V.V., Mikhaylov, A.I. // Modern aspects of quantitative analysis of the fishing raw material base: VNIRO proceedings. - M.: VNIRO Publishing, 2014. - V. 151. P. 81-86. - 2014
~РУБ Article
Рубрики: Statistics
Climate
Commander's squid
Kuril Islands
Fishery
Reproduction
Аннотация: There was no statistical significant relationship between catches of the schoolmaster gonate squid per unit of effort off the Kuril Islands and changes in the North Pacific Index (NPla, Aleutian Low). Such a relationship has been studied earlier, but here we analyze it using a more detailed time series and more powerful statistical methods, such as Generalized Additive Mixed Models. The inclusion of the Aleutian Low index in the calculation of abundance index based on fishery statistics has improved the model only slightly; however, this could be due to the use of relatively short time series of 15 years for catch data.
Доп.точки доступа:
Kulik, V.V.
Mikhaylov, A.I.
K23
Katugin, O.N.
Validation of Statistical Significance for the Influence of Climatic Factors on the Schoolmaster Gonate Squid (Berryteuthis magister) Fishery Capacity off the Kuril Islands [Электронный ресурс] / Katugin, O.N., Kulik, V.V., Mikhaylov, A.I. // Modern aspects of quantitative analysis of the fishing raw material base: VNIRO proceedings. - M.: VNIRO Publishing, 2014. - V. 151. P. 81-86. - 2014
Рубрики: Statistics
Climate
Commander's squid
Kuril Islands
Fishery
Reproduction
Аннотация: There was no statistical significant relationship between catches of the schoolmaster gonate squid per unit of effort off the Kuril Islands and changes in the North Pacific Index (NPla, Aleutian Low). Such a relationship has been studied earlier, but here we analyze it using a more detailed time series and more powerful statistical methods, such as Generalized Additive Mixed Models. The inclusion of the Aleutian Low index in the calculation of abundance index based on fishery statistics has improved the model only slightly; however, this could be due to the use of relatively short time series of 15 years for catch data.
Доп.точки доступа:
Kulik, V.V.
Mikhaylov, A.I.
12.
Подробнее
L29
Lapina, N.M.
Biochemical Monitoring of the Russian Arctic Seas under the Climate Change [Электронный ресурс] / Lapina, N.M., Torgunova, N.I., Agatova, A.I. // 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. 101-117. - 2014
~РУБ Article
Рубрики: Biochemistry
Monitoring
Climate
Hydrobionts
Ecosystems
Calculations
Аннотация: Quantities and biochemical composition of dissolved and particulate organic matter (OM) as well as rates of the OM transformation in the Russian Arctic seas are analyzed. There is a significant variability in the OM concentrations with the maximum concentrations of dissolved and particulate OM in the White and Kara seas, while the minimum ones were observed in the East-Siberian Sea. Rates of the OM oxidation were maximum in various frontal zones formed with water masses of different origin as well as the seasonal ice melting. It is shown that despite low temperatures in the Arctic marine ecosystems, there is an intensive transformation of both autochthonous, and allochthonous OM, because local phsycrophils expend low activation energies on oxidation and hydrolytic splitting of OM. In the Arctic seas, the main biochemical components of the dissolved OM are carbohydrates and lipids, while proteins and carbohydrates dominate in the particulate OM.
Доп.точки доступа:
Torgunova, N.I.
Agatova, A.I.
L29
Lapina, N.M.
Biochemical Monitoring of the Russian Arctic Seas under the Climate Change [Электронный ресурс] / Lapina, N.M., Torgunova, N.I., Agatova, A.I. // 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. 101-117. - 2014
Рубрики: Biochemistry
Monitoring
Climate
Hydrobionts
Ecosystems
Calculations
Аннотация: Quantities and biochemical composition of dissolved and particulate organic matter (OM) as well as rates of the OM transformation in the Russian Arctic seas are analyzed. There is a significant variability in the OM concentrations with the maximum concentrations of dissolved and particulate OM in the White and Kara seas, while the minimum ones were observed in the East-Siberian Sea. Rates of the OM oxidation were maximum in various frontal zones formed with water masses of different origin as well as the seasonal ice melting. It is shown that despite low temperatures in the Arctic marine ecosystems, there is an intensive transformation of both autochthonous, and allochthonous OM, because local phsycrophils expend low activation energies on oxidation and hydrolytic splitting of OM. In the Arctic seas, the main biochemical components of the dissolved OM are carbohydrates and lipids, while proteins and carbohydrates dominate in the particulate OM.
Доп.точки доступа:
Torgunova, N.I.
Agatova, A.I.
13.
Подробнее
M37
Maslennikov, V.V.
Temporal and Spatial Variability of Total Productivity of the Antarctic Waters [Электронный ресурс] / Maslennikov, V.V., Artamonova, K.V., Dukhova, L.A. // 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. 133-145. - 2014
~РУБ Article
Рубрики: Bioproductivity
Circulation
Climate
Krill
Calculations
Temperature
Аннотация: Temporal and spatial variability of total productivity in Antarctic water depending on climatic conditions is considered. Favorable and unfavorable periods of commercial Antarctic krill concentration are established. The Antarctic krill is a most valuable fishing object in the Antarctic waters. It makes a basic part of feeding ration for numerous consumers. A spatial inhomogeneity of the Antarctic krill distribution is shown. Chemical indices of the high-productivity areas of the Antarctic water are established. It is shown the chemical indices of the dense Antarctic Shelf waters in the Slope areas intensified the Antarctic Slope front that is a most high-fish capacity area in Antarctic.
Доп.точки доступа:
Artamonova, K.V.
Dukhova, L.A.
M37
Maslennikov, V.V.
Temporal and Spatial Variability of Total Productivity of the Antarctic Waters [Электронный ресурс] / Maslennikov, V.V., Artamonova, K.V., Dukhova, L.A. // 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. 133-145. - 2014
Рубрики: Bioproductivity
Circulation
Climate
Krill
Calculations
Temperature
Аннотация: Temporal and spatial variability of total productivity in Antarctic water depending on climatic conditions is considered. Favorable and unfavorable periods of commercial Antarctic krill concentration are established. The Antarctic krill is a most valuable fishing object in the Antarctic waters. It makes a basic part of feeding ration for numerous consumers. A spatial inhomogeneity of the Antarctic krill distribution is shown. Chemical indices of the high-productivity areas of the Antarctic water are established. It is shown the chemical indices of the dense Antarctic Shelf waters in the Slope areas intensified the Antarctic Slope front that is a most high-fish capacity area in Antarctic.
Доп.точки доступа:
Artamonova, K.V.
Dukhova, L.A.
14.
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.
15.
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.
Страница 2, Результатов: 15