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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Dubovskaya O.P., Gladyshev M.I., Makhutova O.N.
Заглавие : Limnetic zooplankton passing through a high-head dam and their fate in a river with high current velocity (Case of the Krasnoyarsk hydroelectric power station on the Yenisey river)
Место публикации : Zhurnal Obshchei Biologii. - 2004. - Vol. 65, Is. 1. - С. 92-93. - ISSN 00444596 (ISSN)
Ключевые слова (''Своб.индексиров.''): copepoda--heterocope
Аннотация: The vertical distribution of net zooplankton in head-water of Krasnoyarsk hydroelectric power station and its horizontal distribution in the tail-water were studied during two years in winter and summer seasons. In order to distinguish living and dead individuals the special staining was used. It was revealed that on average 77% of living plankton pass through high-head dam with deep water scoop to the tailwater. While passing through dam aggregates some individuals of the reservoir plankton are traumatized and die, that results in some increase of portion of dead individuals in the tail water near dam (from 3 to 6%). Alive zooplankton passed through the dam aggregates is eliminated under the Upper Yenisey highly turbulent conditions. There is approximately 10% of it in 32 km from the dam if compare with biomass in 20-40 m layer of reservoir, the portion of dead increases to 11%. The biomass of zooplankton suspended in the water column of the tail-water sometimes increases (till > 1 g/m3) due to large Copepoda Heterocope borealis, which inhabits near-bottom and near-shore river zones and can be found in the central part of the river during reproductive period. Limnetic zooplankton from the reservoir cannot be considered as important food for planktivores in the tail-water.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Dubovskaia O.P., Gladyshev M.I., Makhutova O.N.
Заглавие : Limnetic zooplankton run-off a high-head dam and their fate in a river with high current velocity (case of the Krasnoiarsk hydroelectric power station on the Yenisei river
Место публикации : Zhurnal obshchei biologii. - 2004. - Vol. 65, Is. 1. - С. 81-93. - ISSN 00444596 (ISSN)
Ключевые слова (''Своб.индексиров.''): fresh water--animal--article--biomass--electric power plant--physiology--russian federation--season--zooplankton--animals--biomass--fresh water--power plants--seasons--siberia--zooplankton
Аннотация: The vertical distribution of net zooplankton in head-water of Krasnoyarsk hydroelectric power station and its horizontal distribution in the tail-water were studied during two years in winter and summer seasons. In order to distinguish living and dead individuals the special staining was used. It was revealed that on average 77% of living plankton pass through high-head dam with deep water scoop to the tailwater. While passing through dam aggregates some individuals of the reservoir plankton are traumatized and die, that results in some increase of portion of dead individuals in the tail water near dam (from 3 to 6%). Alive zooplankton passed through the dam aggregates is eliminated under the Upper Yenisei highly turbulent conditions. There is approximately 10% of it in 32 km from the dam if compare with biomass in 20-40 m layer of reservoir, the portion of dead increases to 11%. The biomass of zooplankton suspended in the water column of the tail-water sometimes increases (till 1 g/m3) due to large Copepoda Heteroscope borealis, which inhabits near-bottom and near-shore river zones and can be found in the central part of the river during reproductive period. Limnetic zooplankton from the reservoir cannot be considered as important food for planktivores in the tail-water.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Ushakova S., Tikhomirov A., Shikhov V., Kudenko Yu., Anischenko O., Gros J.-B., Lasseur Ch.
Заглавие : Increased BLSS closure using mineralized human waste in plant cultivation on a neutral substrate
Место публикации : Advances in Space Research. - 2009. - Vol. 44, Is. 8. - С. 971-978. - ISSN 02731177 (ISSN) , DOI 10.1016/j.asr.2009.06.003
Ключевые слова (''Своб.индексиров.''): biological life support system--crops--human waste recycling--hydroponics--biological life support system--biological life support systems--biological productivity--control experiments--control plants--environmental conditions--expanded clay--human waste--human waste recycling--hydroponics--in-plants--macro element--mineral element--neutral solution--nutrient solution--photosynthetic apparatus--pisum sativum--plant growth--scale potential--spring wheat--triticum aestivum--vegetation periods--water extracts--wheat straws--clay minerals--crops--minerals--mining--nutrients--pilot plants--plant life extension--potassium--productivity--recycling--solvent extraction--vegetation--water content--plant shutdowns
Аннотация: The purpose of this work was to study the full-scale potential use of human mineralized waste (feces and urine) as a source of mineral elements for plant cultivation in a biological life support system (BLSS). Plants that are potential candidates for a photosynthesizing link were grown on a neutral solution containing human mineralized waste. Spring wheat Triticum aestivum L., peas Pisum sativum L. Ambrosia cultivar and leaf lettuce Lactuca sativa L., Vitaminny variety, were used. The plants were grown hydroponically on expanded clay aggregates in a vegetation chamber in constant environmental conditions. During plant growth, a determined amount of human mineralized waste was added daily to the nutrient solution. The nutrient solution remained unchanged throughout the vegetation period. Estimated plant requirements for macro-elements were based on a total biological productivity of 0.04 kg day-1 m-2. As the plant requirements for potassium exceeded the potassium content of human waste, a water extract of wheat straw containing the required amount of potassium was added to the nutrient solution. The Knop's solution was used in the control experiments. The experimental and control plants showed no significant differences in state or productivity of their photosynthetic apparatus. A small decrease in total productivity of the experimental plants was observed, which might result in some reduction of O{cyrillic}2 production in a BLSS. В© 2009 COSPAR.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Tang K.W., Gladyshev M.I., Dubovskaya O.P., Kirillin G..., Grossart H.P.
Заглавие : Zooplankton carcasses and non-predatory mortality in freshwater and inland sea environments
Колич.характеристики :16 с
Коллективы : Humboldt Foundation; Ministry of Education and Science of Russian Federation (Siberian Federal University) [B-15]; Leibniz-Association [SAW-2011-IGB-2]; German Science foundation [KI-853/7-1, GR1540/20-1]
Место публикации : J. Plankton Res.: OXFORD UNIV PRESS, 2014. - Vol. 36, Is. 3. - С. 597-612. - ISSN 0142-7873, DOI 10.1093/plankt/fbu014. - ISSN 1464-3774
Примечания : Cited References: 168. - This work was supported by the Humboldt Foundation (Fellowship for Experienced Researchers to K. W. T.); Siberian Branch of Russian Academy of Science (Partner Project No. 8 to M. I. G. and O.P.D.); Federal Tasks of Ministry of Education and Science of Russian Federation (project B-15 of Siberian Federal University to M. I. G.); the Leibniz-Association (SAW-2011-IGB-2 to G. K.); and the German Science foundation (KI-853/7-1 to G. K., GR1540/20-1 to H. P. G.). The manuscript benefited from the constructive comments from three reviewers.
Предметные рубрики: SMALL-SCALE TURBULENCE
NON-CALANOID COPEPODS
AGGREGATES LAKE SNOW
DAPHNIA-GALEATA
MIDSUMMER DECLINE
NONCONSUMPTIVE MORTALITY
CRUSTACEAN ZOOPLANKTON
CLIMATE-CHANGE
VERTICAL-DISTRIBUTION
POPULATION-GROWTH
Ключевые слова (''Своб.индексиров.''): carbon flux--inland waters--lakes--live--dead sorting--non-predatory mortality--zooplankton carcasses
Аннотация: Zooplankton carcasses are ubiquitous in marine and freshwater systems, implicating the importance of non-predatory mortality, but both are often overlooked in ecological studies compared with predatory mortality. The development of several microscopic methods allows the distinction between live and dead zooplankton in field samples, and the reported percentages of dead zooplankton average 11.6 (minimum) to 59.8 (maximum) in marine environments, and 7.4 (minimum) to 47.6 (maximum) in fresh and inland waters. Common causes of non-predatory mortality among zooplankton include senescence, temperature change, physical and chemical stresses, parasitism and food-related factors. Carcasses resulting from non-predatory mortality may undergo decomposition leading to an increase in microbial production and a shift in microbial composition in the water column. Alternatively, sinking carcasses may contribute significantly to vertical carbon flux especially outside the phytoplankton growth seasons, and become a food source for the benthos. Global climate change is already altering freshwater ecosystems on multiple levels, and likely will have significant positive or negative effects on zooplankton non-predatory mortality. Better spatial and temporal studies of zooplankton carcasses and non-predatory mortality rates will improve our understanding of this important but under-appreciated topic.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : PRIMAKOVA G.A., KUZNETSOV A.M.
Заглавие : LUMINESCENT PLANKTON BACTERIA FROM THE CORAL REEFS AND LITTORAL WATERS OF THE TROPICAL REGIONS OF THE INDIAN-OCEAN AND THE SOUTH CHINA SEA
Колич.характеристики :8 с
Место публикации : Microbiology: MAIK NAUKA/INTERPERIODICA, 1990. - Vol. 59, Is. 5. - P630-637. - ISSN 0026-2617
Примечания : Cited References: 19
Предметные рубрики: LUMINOUS BACTERIA
SPECIES COMPOSITION
MEDITERRANEAN SEA
ESTUARY
GULF
ELAT
Аннотация: Luminescent bacteria were regularly encountered on the coral reefs of both the Indian Ocean and the South China Sea. Their counts in these regions amounted to 10(2) to 10(4) colony-forming units (CFU)/liter, and their proportion of the total numbers of saprophytic bacteria was 0.1-6.0%. Up to 85% of the luminescent bacteria occurred in the sea water in the form of aggregates ranging in size from 3-8-mu-m, to below 200-mu-m. The predominant species amongst the luminescent bacteria of these regions was Vibrio harvevi, comprising [4], with only 8.8% represented by Photobacterium leiognathi.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Gurevich Y.L., Teremova M.I., Latyntseva A.V.
Заглавие : Flocculation of bacterial cells in a culture with protozoans
Колич.характеристики :5 с
Место публикации : Izv. Akad. Nauk Ser. Biol.: MEZHDUNARODNAYA KNIGA, 1998. - Is. 3. - P351-355. - ISSN 0002-3329
Примечания : Cited References: 13
Аннотация: The initial phase of formation of the biogenic suspension was studied in experimental communities of bacteria and protozoans that simulate degradation of the phenol technogenic flows. Protozoans were shown to initiate formation of bacterial aggregates and increase the size of bacterial flocules several hundred times. Factors were found by the methods of mathematical planning, which markedly affect the size and amount of flocules. Unlike natural water bodies, in the sample communites, the presence of abiogenic substrate was not essential for aggregation of the bacteria, The aggregated bacterial cells make an important contribution to degradation of organic compounds.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Dubovskaya O.P., Gladyshev M.I., Makhutova O.N.
Заглавие : Linmetic zooplankton passing through a high-head dam and their fate in a river with high current velocity (case of the Krasnoyarsk Hydroelectric Power Station on the Yenisey River)
Колич.характеристики :13 с
Место публикации : Zhurnal Obshchei Biol.: MEZHDUNARODNAYA KNIGA, 2004. - Vol. 65, Is. 1. - P81-93. - ISSN 0044-4596
Примечания : Cited References: 15
Предметные рубрики: MORTALITY
Аннотация: The vertical distribution of net zooplankton in head-water of Krasnoyarsk hydroelectric power station and its horizontal distribution in the tail-water were studied during two years in winter and summer seasons. In order to distinguish living and dead individuals the special staining was used. It was revealed that on average 77% of living plankton pass through high-head dam with deep water scoop to the tailwater. While passing through dam aggregates some individuals of the reservoir plankton are traumatized and die, that results in some increase of portion of dead individuals in the tail water near dam (from 3 to 6%). Alive zooplankton passed through the darn aggregates is eliminated under the Upper Yenisey highly turbulent conditions. There is approximately 10% of it in 32 km from the dam if compare with biomass in 20-40 m layer of reservoir; the portion of dead increases to I M. The biomass of zooplankton suspended in the water column of the tail-water sometimes increases (till 1 g/m(3)) due to large Copepoda Heterocope borealis, which inhabits near-bottom and near-shore river zones and can be found in the central part of the river during reproductive period. Limnetic zooplankton from the reservoir cannot be considered as important food for planktivores in the tail-water.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Bolshedvorskii S. V., Vorobyov V. V., Soshenko V. V., Shershulin V. A., Javadzade J., Zeleneev A. I., Komrakova S. A., Sorokin V. N., Belobrov P. I., Smolyaninov A. N., Akimov A. V.
Заглавие : Single bright NV centers in aggregates of detonation nanodiamonds
Место публикации : Opt. Mater. Express: OSA - The Optical Society, 2017. - Vol. 7, Is. 11. - ISSN 21593930 (ISSN) , DOI 10.1364/OME.7.004038
Ключевые слова (''Своб.индексиров.''): aggregates--detonation--detonation nanodiamonds--nv center--spin properties--nanodiamonds
Аннотация: In this paper, we experimentally investigate optical and spin properties of NV centers in aggregates of detonation nanodiamonds. We show that despite the small size of nanodiamonds forming the aggregate, the NV centers in these aggregates exhibit spin properties comparable to similar size nanodiamonds grown by other methods, but with brightness enhanced by a factor of 2. © 2017 Optical Society of America.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Tikhomirov A., Ushakova S., Tikhomirova N., Velichko V., Trifonov S., Anishchenko O.
Заглавие : Establishing cycling processes in an experimental model of a closed ecosystem
Место публикации :. - 2018. - ISSN 00945765 (ISSN) , DOI 10.1016/j.actaastro.2018.08.023
Ключевые слова (''Своб.индексиров.''): cycling--experimental model of the closed ecosystem--oxidation of human and plant wastes--plant productivity--carbon dioxide--cultivation--ecosystems--life support systems (spacecraft)--closed ecological systems--cycling--expanded clay aggregates--experimental modeling--photosynthetic activity--plant productivity--plant wastes--terrestrial application--plant shutdowns
Аннотация: The purpose of this study was to investigate mass exchange processes in the experimental model of a closed ecological system intended for an estimated portion of a human in the long-duration (several-month) experiment. The diversity of the vegetable crop community in the system was increased, human wastes were involved in mass exchange processes, and human respiration was periodically connected to the system. The system has been designed to test different prospective technologies for future closed life support systems intended for prolonged autonomous operation in space and terrestrial applications. Three methods of plant cultivation in the conveyer mode have been used: hydroponics on expanded clay aggregate, growing plants on the soil-like substrate, and plant cultivation in aquaculture. The technology of more effective oxidation of organic wastes in a physicochemical processing reactor has been developed. A human exhaled the air into the system and consumed the air from the system. O2 concentration did not drop below 20.8% and did not rise above 22.6%. CO2 concentration varied between 800 ppm and 2500 ppm. Plants growing under this CO2 range at a preset light irradiance showed optimal photosynthetic activity. The closure coefficients for Ca, Mg, S, N, K and P were above 90%. However, compared with the inflow, only 55% Ca, about 80% Mg, and 75% Na and P were removed from the system. The technological processes developed in this study will need to be modified and improved before they can be used in a full-scale closed biotechnical life support system intended for prolonged operation. © 2018 IAA
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