Библиотека института биофизики СО РАН

Главная

Базы данных

Труды сотрудников ИБФ СО РАН - результаты поиска

Вид поиска

Каталог книг и продолжающихся изданий библиотеки Института биофизики СО РАН

Иностранные журналы библиотеки Института биофизики СО РАН

Отечественные журналы библиотеки Института биофизики СО РАН

Каталог диссертаций ИБФ СО РАН

Труды сотрудников ИБФ СО РАН

Область поиска

в найденном

Найдено в других БД:

Каталог книг и продолжающихся изданий библиотеки Института биофизики СО РАН (1)

Формат представления найденных документов:
полный	информационный	краткий

Отсортировать найденные документы по:
автору	заглавию	году издания	типу документа

Поисковый запрос: (<.>K=Phosphorus<.>)

Общее количество найденных документов : 50
Показаны документы с 1 по 20

1-20 21-40 41-50

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Diaz-De-Quijano D., Vladimirovich Ageev A., Anatolevna Ivanova E., Valerevna Anishchenko O.
Заглавие : Winter atmospheric nutrient and pollutant deposition on Western Sayan Mountain lakes (Siberia)
Место публикации : Biogeosciences: Copernicus GmbH, 2021. - Vol. 18, Is. 5. - С. 1601-1618. - ISSN 17264170 (ISSN), DOI 10.5194/bg-18-1601-2021
Аннотация: The world map of anthropogenic atmospheric nitrogen deposition and its effects on natural ecosystems is not described with equal precision everywhere. In this paper, we report atmospheric nutrient, sulfate and spheroidal carbonaceous particle (SCP) deposition rates, based on snowpack analyses of a formerly unexplored Siberian mountain region. Then, we discuss their potential effects on lake phytoplankton biomass limitation. We estimate that the nutrient depositions observed in the late-season snowpack (4016 mgNO3-Nm2 and 0.580.13 mg TP-Pm2; TP for total phosphorous) would correspond to yearly depositions lower than 11971 mgNO3-Nm2 yr1 and higher than 1.710.91 mg TP-Pm2 yr1. These yearly deposition estimates would approximately fit the predictions of global deposition models and correspond to the very low nutrient deposition range, although they are still higher than world background values. In spite of the fact that such a low atmospheric nitrogen deposition rate would be enough to induce nitrogen limitation in unproductive mountain lakes, phosphorus deposition was also extremely low, and the resulting lake water N: P ratio was unaffected by atmospheric nutrient deposition. In the end, the studied lakes' phytoplankton appeared to be split between phosphorus and nitrogen limitation. We conclude that these pristine lakes are fragile sensitive systems exposed to the predicted climate warming, increased winter precipitation, enhanced forest fires and shifts in anthropogenic nitrogen emissions that could finally couple their water chemistry to that of atmospheric nutrient deposition and unlock temperature-inhibited responses of phytoplankton to nutrient shifts. © Author(s) 2021. This work is distributed under the Creative Commons Attribution 4.0 License.
Scopus
Найти похожие

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Diaz A. V., Ageev, Aleksander Vladimirovich, Ivanova, Elena Anatolevna, Anishchenko, Olesia Valerevna
Заглавие : Winter atmospheric nutrient and pollutant deposition on Western Sayan Mountain lakes (Siberia)
Колич.характеристики :18 с
Коллективы : Russian Foundation for Basic ResearchRussian Foundation for Basic Research (RFBR) [20-04-00960]; Ministry of Science and Higher Education of the Russian Federation [5-100, FSRZ-2020-0014]
Место публикации : Biogeosciences: COPERNICUS GESELLSCHAFT MBH, 2021. - Vol. 18, Is. 5. - С. 1601-1618. - ISSN 1726-4170, DOI 10.5194/bg-18-1601-2021. - ISSN 1726-4189(eISSN)
Примечания : Cited References:86. - This research has been supported by the Russian Foundation for Basic Research (grant no. 20-04-00960) and the Ministry of Science and Higher Education of the Russian Federation (postdoctoral program project no. 5-100, grant no. FSRZ-2020-0014).
Предметные рубрики: FLY-ASH PARTICLES
NITROGEN DEPOSITION
PHOSPHORUS DEPOSITION
Аннотация: The world map of anthropogenic atmospheric nitrogen deposition and its effects on natural ecosystems is not described with equal precision everywhere. In this paper, we report atmospheric nutrient, sulfate and spheroidal carbonaceous particle (SCP) deposition rates, based on snowpack analyses of a formerly unexplored Siberian mountain region. Then, we discuss their potential effects on lake phytoplankton biomass limitation. We estimate that the nutrient depositions observed in the late-season snowpack (40 +/- 16 mgNO(3)-Nm(-2) and 0.58 +/- 0.13 mg TP-Pm-2; TP for total phosphorous) would correspond to yearly depositions lower than 119 +/- 71 mgNO(3)-Nm(-2) yr(-1) and higher than 1.71 +/- 0.91 mg TP-Pm-2 yr(-1). These yearly deposition estimates would approximately fit the predictions of global deposition models and correspond to the very low nutrient deposition range, although they are still higher than world background values. In spite of the fact that such a low atmospheric nitrogen deposition rate would be enough to induce nitrogen limitation in unproductive mountain lakes, phosphorus deposition was also extremely low, and the resulting lake water N: P ratio was unaffected by atmospheric nutrient deposition. In the end, the studied lakes' phytoplankton appeared to be split between phosphorus and nitrogen limitation. We conclude that these pristine lakes are fragile sensitive systems exposed to the predicted climate warming, increased winter precipitation, enhanced forest fires and shifts in anthropogenic nitrogen emissions that could finally couple their water chemistry to that of atmospheric nutrient deposition and unlock temperature-inhibited responses of phytoplankton to nutrient shifts.
WOS
Найти похожие

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Manukovsky N.S., Kovalev V.S., Gribovskaya I.V.
Заглавие : Utilization of substrate when growing oyster mushroom Pleurotus florida Fovose
Колич.характеристики :4 с
Место публикации : Mikol. Fitopatol.: MEZHDUNARODNAYA KNIGA, 1998. - Vol. 32, Is. 6. - P43-46. - ISSN 0026-3648
Примечания : Cited References: 8
Аннотация: Content of biogenic elements in the residual substrate after growing of oyster mushroom Pleurotus florida Fovose on wheat straw was studied. It was calculated, that masses of sulphur, calcium and magnesium in the residual substrate were more than 90 % of their initial masses in wheat straw used for growing. Therefore the accumulation of these elements in the substrate under its repeated recycling for mushroom growing is possible. On the contrary the lack of phosphorus is expected. After washing content of all biogenic elements tested in residual substrate, except for calcium, was lower than their content in wheat straw. The decreasing of mushroom yield under increasing rate of residual substrate in its mixture with wheat straw was shown. Washing of residual substrate did not lead to decreasing of yield.
WOS
Найти похожие

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Karpowicz, Maciej, Feniova, Irina, Gladyshev, Michail I., Ejsmont-Karabin, Jolanta, Gorniak, Andrzej, Sushchik, Nadezhda N., Anishchenko, Olesya V., Dzialowski, Andrew R.
Заглавие : Transfer efficiency of carbon, nutrients, and polyunsaturated fatty acids in planktonic food webs under different environmental conditions
Колич.характеристики :14 с
Коллективы : Polish National Science Centre [2016/21/B/NZ8/00434]; Federal Tasks for Institute of Biophysics SB RAS [51.1.1]; Federal Tasks for Siberian Federal University [FSRG-2020-0019]
Место публикации : Ecol. Evol.: WILEY, 2021. - Article in press. - ISSN 2045-7758, DOI 10.1002/ece3.7651
Примечания : Cited References:62. - This research was supported by the Polish National Science Centre (2016/21/B/NZ8/00434). The research was also supported by Federal Tasks for Institute of Biophysics SB RAS No. 51.1.1 and Federal Tasks for Siberian Federal University No. FSRG-2020-0019. The authors are thankful to Joanna Kozowska for her help in the collection of samples.
Предметные рубрики: PHOSPHORUS STOICHIOMETRY
LIGHT-INTENSITY
ZOOPLANKTON
TEMPERATURE
Аннотация: The trophic transfer efficiency (TTE) is an important indicator of ecosystem functioning. However, TTE data from freshwater food webs are ambiguous due to differences in time scales and methods. We investigated the transfer of essential substances (carbon, nutrients, and polyunsaturated fatty acids) through plankton communities in 30 Polish lakes with different trophic status in the middle of summer. The results of our study revealed that different essential substances were transferred from phytoplankton to zooplankton with varying efficiencies. The average TTE of C, N, P, and the sum of omega-3 PUFA were 6.55%, 9.82%, 15.82%, and 20.90%, respectively. Our results also show a large mismatch between the elemental and biochemical compositions of zooplankton and their food during the peak of the summer stagnation, which may further promote the accumulation of essential substances. There were also large differences in TTEs between trophic conditions, with the highest efficiencies in oligotrophic lakes and the lowest in dystrophic and eutrophic lakes. Therefore, our study indicates that disturbances like eutrophication and dystrophication similarly decrease the TTE of essential substances between phytoplankton and zooplankton in freshwater food webs.
WOS
Найти похожие

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Karpowicz M., Feniova I., Gladyshev M. I., Ejsmont-Karabin J., Gorniak A., Zielinski P., Dawidowicz P., Kolmakova A. A., Dzialowski A. R.
Заглавие : The stoichiometric ratios (C:N:P) in a pelagic food web under experimental conditions
Место публикации : Limnologica: Elsevier GmbH, 2019. - Vol. 77. - Ст.125690. - ISSN 00759511 (ISSN) , DOI 10.1016/j.limno.2019.125690
Аннотация: Interactions between phytoplankton and zooplankton affect the overall functioning of lakes. Herbivores are habitually confronted with food of inferior quality, usually a result of low nutrient concentrations in plant material. Large-bodied cladocerans are better competitors for food than small-bodied species but they are more vulnerable to low food quality. Understanding the effects of food quality on zooplankton structure and competition between small - large bodied herbivorous is of considerable interest. We want to find out how differences in C:N:P ratios between phytoplankton and zooplankton communities affect their abundances in a freshwater food web. We want also to assess the role of phytoplankton and zooplankton as sinks of the phosphorus and nitrogen. Therefore, we conducted a 31-day mesocosms experiment with water from a mesotrophic and a eutrophic lake (with natural plankton communities). To simulate changes in the plankton communities large-bodied Daphnia magna and Daphnia pulicaria were added. Samples for zooplankton, phytoplankton and water chemistry were taken every 10 days. Samples for elemental analysis (C:N:P) of seston and zooplankton were collected on the first, and on the final day of the experiment. Our mesocosms experiment showed mismatch in C:P between seston (high) and zooplankton (low), which suggests that most of the phosphorus is incorporated in zooplankton biomass. This evidenced that zooplankton is an effective sink of phosphorus, while nitrogen is accumulated mainly by primary producers. Our results also indicated more stability in stoichiometry with increasing trophic levels of organisms. However, there were significant changes in the zooplankton structure. The increasing dominance of large Daphnia resulted in reduction of C:P ratio in zooplankton. Low food quality (C:P) did not limit the growth of large Daphnia in the experimental conditions, which competed effectively with small planktonic cladocerans and with Rotifera. Over time, inedible algae began to dominate resulting in increase of relative biomass of periphyton grazers, which suggests that plankton community is transformed into littoral system in mesocosms for about 30 days. © 2019
Scopus,
Смотреть статью,
WOS
Найти похожие

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Iskhakov R.S., Fish G.I., Khlebopros R.G.
Заглавие : Temperature dependence of exchange inhomogeneity characteristics in amorphous CoP alloys
Место публикации : Solid State Communications. - 1983. - Vol. 45, Is. 11. - С. 961-962. - ISSN 00381098 (ISSN)
Ключевые слова (''Своб.индексиров.''): cobalt phosphorus alloys
Аннотация: It has been first shown experimentally that stochastical characteristics of exchange fluctuation in amorphous alloy CoP (P = 9-12 at.%) are mainly caused by compositional (chemical) disorder, i.e. by the degree of supersaturation of solid solution but not by the type of structural state. В© 1983.
Scopus
Найти похожие

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Buseva, Zhanna F., Farahani, Shabnam Bahman Gazerani, Veras, Yulia K., Kolmakova, Anzhelika A., Sushchik, Nadezhda N.
Заглавие : STOICHIOMETRIC COMPOSITION OF SESTON IN LITTORAL AND PELAGIAL ZONES OF SHALLOW LAKE OBSTERNO (BELARUS)
Колич.характеристики :7 с
Коллективы : BRFFR [17-037]
Место публикации : Dokl. Nat. Akad. Nauk Belarusi: BELARUSKAYA NAVUKA, 2018. - Vol. 62, Is. 3. - С. 304-310. - ISSN 1561-8323, DOI 10.29235/1561-8323-2018-62-3-304-310. - ISSN 2524-2431(eISSN)
Примечания : Cited References:15. - This work was partially supported by the BRFFR (grant No. (sic)17-037). We thank for the collaboration with Narach Biological Station of Belarusian State University and thank it's Director Dr. T. V. Zhukova, scientific and technological staff -E. I. Lapitskaja and E. A. Zhuravliova for their fruitfull help.
Предметные рубрики: NUTRIENT LIMITATION
PHOSPHORUS
NITROGEN
ZOOPLANKTON
CARBON
MARINE
Ключевые слова (''Своб.индексиров.''): seston--carbon--nitrogen--phosphorus--stoichiometry--littoral--pelagial--macrophyte beds
Аннотация: We estimated the seston elemental composition (C, N, P) and its ratio in pelagic and littoral zones of mesotrophic shallow Lake Obsterno during two contrasting seasons, as well as the influence of macrophyte beds on the seston stoichiometry. In the both pelagial and littoral zones in summer the C : N ratio was small, 4.62 and 7.05 respectively. But it increased slightly during autumn to 5.66 in pelagic samples against 8.33 in littoral ones. The large N : P ratio and the small phosphorus content specially in the macrophyte covered littoral zone equal to 57.7 in July against 22.47 in September suggest a high level of phosphorus limitation in the littoral locations as a possible mediated reason suppressing zooplankton abundance in summer. Our results in the both pelagial and littoral habitat showed a highly P limited situation in which the N : P ratio was larger in littoral with macrophyte than in pelagial zones. The obtained data of littoral seston stoichiometry were recorded for the first time and exceeded the classical Redfield ratio. The elemental imbalance between macrophyte covered littoral and pelagial suggest that nutrients, especially P, are more limiting in macrophyte beds in summer due to the resource competition between phytoplankton and macrophytes for nutrients, a poor food quality, low zooplankton abundance, as well as its poor taxon-specific elemental ratio in summer.
WOS,
Смотреть статью
Найти похожие

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Huser B. J., Futter M. N., Bogan D., Brittain J. E., Culp J. M., Goedkoop W., Gribovskaya I., Karlsson J., Lau D. C.P., Ruhland K. M., Schartau A. K., Shaftel R., Smol J. P., Vrede T., Lento J.
Заглавие : Spatial and temporal variation in Arctic freshwater chemistry—Reflecting climate-induced landscape alterations and a changing template for biodiversity
Место публикации : Freshw. Biol.: Blackwell Publishing Ltd, 2020. - Article in press. - ISSN 00465070 (ISSN), DOI 10.1111/fwb.13645
Аннотация: Freshwater chemistry across the circumpolar region was characterised using a pan-Arctic data set from 1,032 lake and 482 river stations. Temporal trends were estimated for Early (1970–1985), Middle (1986–2000), and Late (2001–2015) periods. Spatial patterns were assessed using data collected since 2001. Alkalinity, pH, conductivity, sulfate, chloride, sodium, calcium, and magnesium (major ions) were generally higher in the northern-most Arctic regions than in the Near Arctic (southern-most) region. In particular, spatial patterns in pH, alkalinity, calcium, and magnesium appeared to reflect underlying geology, with more alkaline waters in the High Arctic and Sub Arctic, where sedimentary bedrock dominated. Carbon and nutrients displayed latitudinal trends, with lower levels of dissolved organic carbon (DOC), total nitrogen, and (to a lesser extent) total phosphorus (TP) in the High and Low Arctic than at lower latitudes. Significantly higher nutrient levels were observed in systems impacted by permafrost thaw slumps. Bulk temporal trends indicated that TP was higher during the Late period in the High Arctic, whereas it was lower in the Near Arctic. In contrast, DOC and total nitrogen were both lower during the Late period in the High Arctic sites. Major ion concentrations were higher in the Near, Sub, and Low Arctic during the Late period, but the opposite bulk trend was found in the High Arctic. Significant pan-Arctic temporal trends were detected for all variables, with the most prevalent being negative TP trends in the Near and Sub Arctic, and positive trends in the High and Low Arctic (mean trends ranged from +0.57%/year in the High/Low Arctic to ?2.2%/year in the Near Arctic), indicating widespread nutrient enrichment at higher latitudes and oligotrophication at lower latitudes. The divergent P trends across regions may be explained by changes in deposition and climate, causing decreased catchment transport of P in the south (e.g. increased soil binding and trapping in terrestrial vegetation) and increased P availability in the north (deepening of the active layer of the permafrost and soil/sediment sloughing). Other changes in concentrations of major ions and DOC were consistent with projected effects of ongoing climate change. Given the ongoing warming across the Arctic, these region-specific changes are likely to have even greater effects on Arctic water quality, biota, ecosystem function and services, and human well-being in the future. © 2020 The Authors. Freshwater Biology published by John Wiley & Sons Ltd.
Scopus
Найти похожие

10.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Huser, Brian J., Futter, Martyn N., Bogan, Daniel, Brittain, John E., Culp, Joseph M., Goedkoop, Willem, Gribovskaya, Iliada, Karlsson, Jan, Lau, Danny C. P., Ruhland, Kathleen M., Schartau, Ann Kristin, Shaftel, Rebecca, Smol, John P., Vrede, Tobias, Lento, Jennifer
Заглавие : Spatial and temporal variation in Arctic freshwater chemistry-Reflecting climate-induced landscape alterations and a changing template for biodiversity
Колич.характеристики :16 с
Коллективы : Environment and Climate Change Canada; Cumulative Impact Monitoring Program, Government of Northwest Territories
Место публикации : Freshw. Biol.: WILEY, 2020. - Article in press. - ISSN 0046-5070, DOI 10.1111/fwb.13645. - ISSN 1365-2427(eISSN)
Примечания : Cited References:98. - Environment and Climate Change Canada; Cumulative Impact Monitoring Program, Government of Northwest Territories
Предметные рубрики: DISSOLVED ORGANIC-CARBON
PERMAFROST THAW
CHEMICAL LIMNOLOGY
Аннотация: Freshwater chemistry across the circumpolar region was characterised using a pan-Arctic data set from 1,032 lake and 482 river stations. Temporal trends were estimated for Early (1970-1985), Middle (1986-2000), and Late (2001-2015) periods. Spatial patterns were assessed using data collected since 2001. Alkalinity, pH, conductivity, sulfate, chloride, sodium, calcium, and magnesium (major ions) were generally higher in the northern-most Arctic regions than in the Near Arctic (southern-most) region. In particular, spatial patterns in pH, alkalinity, calcium, and magnesium appeared to reflect underlying geology, with more alkaline waters in the High Arctic and Sub Arctic, where sedimentary bedrock dominated. Carbon and nutrients displayed latitudinal trends, with lower levels of dissolved organic carbon (DOC), total nitrogen, and (to a lesser extent) total phosphorus (TP) in the High and Low Arctic than at lower latitudes. Significantly higher nutrient levels were observed in systems impacted by permafrost thaw slumps. Bulk temporal trends indicated that TP was higher during the Late period in the High Arctic, whereas it was lower in the Near Arctic. In contrast, DOC and total nitrogen were both lower during the Late period in the High Arctic sites. Major ion concentrations were higher in the Near, Sub, and Low Arctic during the Late period, but the opposite bulk trend was found in the High Arctic. Significant pan-Arctic temporal trends were detected for all variables, with the most prevalent being negative TP trends in the Near and Sub Arctic, and positive trends in the High and Low Arctic (mean trends ranged from +0.57%/year in the High/Low Arctic to -2.2%/year in the Near Arctic), indicating widespread nutrient enrichment at higher latitudes and oligotrophication at lower latitudes. The divergent P trends across regions may be explained by changes in deposition and climate, causing decreased catchment transport of P in the south (e.g. increased soil binding and trapping in terrestrial vegetation) and increased P availability in the north (deepening of the active layer of the permafrost and soil/sediment sloughing). Other changes in concentrations of major ions and DOC were consistent with projected effects of ongoing climate change. Given the ongoing warming across the Arctic, these region-specific changes are likely to have even greater effects on Arctic water quality, biota, ecosystem function and services, and human well-being in the future.
WOS
Найти похожие

11.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Kravchuk E.S., Ivanova E.A., Gladyshev M.I.
Заглавие : Seasonal dynamics of akinetes of Anabaena flos-aquae in bottom sediments and water column of small Siberian reservoir
Место публикации : Aquatic Ecology. - 2006. - Vol. 40, Is. 3. - С. 325-336. - ISSN 13862588 (ISSN) , DOI 10.1007/s10452-006-9031-9
Ключевые слова (''Своб.индексиров.''): akinetes--cyanobacteria--cyanobacterial blooms--resting stages--abundance--alga--intertidal environment--open water--population dynamics--reservoir--sediment--water column--eurasia--siberia--anabaena--anabaena flos-aquae--cyanobacteria
Аннотация: Seasonal dynamics of Anabaena flos-aquae (Lyngb.) Breb., including vegetative cells, akinetes and akinete envelopes, in bottom sediments and water column at both littoral and deeper central stations of a small Siberian reservoir was studied. Two types of akinetes were observed: in the first half of summer Anabaena formed akinetes, which served for vegetative reproduction and germinated in water column soon after differentiation, while in the second half of summer the akinetes produced served as a resting stages, which were deposited to bottom sediments. Canonical correlation analyses revealed that decrease of water temperature was the main environmental factor that stimulated the akinete formation. In contrast to the general opinion, concentration of inorganic phosphorus slightly, but positively influenced the akinete formation. Thus, akinetes formed in response to the temperature decrease, needs a certain level of this nutrient. At littoral and open-water stations abundance and seasonal dynamics of akinetes in water column and their sinking pattern were very similar. However, seasonal dynamics of abundance of akinetes in sediments in these two reservoir locations differed: whereas the abundance of akinetes in open water increased permanently during the summer, that in the littoral decreased soon after their sedimentation. The cause for decrease in abundance of akinetes in bottom sediments in winter is unknown. В© Springer 2006.
Scopus
Найти похожие

12.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Gladyshev M.I., Sushchik N.N., Kolmakova A.A., Kalachova G.S., Kravchuk E.S., Ivanova E.A., Makhutova O.N.
Заглавие : Seasonal correlations of elemental and ?3 PUFA composition of seston and dominant phytoplankton species in a eutrophic Siberian Reservoir
Место публикации : Aquatic Ecology. - 2007. - Vol. 41, Is. 1. - С. 9-23. - ISSN 13862588 (ISSN) , DOI 10.1007/s10452-006-9040-8
Ключевые слова (''Своб.индексиров.''): elemental stoichiometry--phytoplankton--polyunsaturated fatty acids--seston--carbon--dominance--eutrophic environment--fatty acid--nitrogen--nutritional requirement--nutritive value--phosphorus--phytoplankton--seasonal variation--seston--zooplankton--eurasia--siberia--anabaena--bacillariophyta--cyanobacteria--gomphosphaeria--peridinium--planktothrix--stephanodiscus
Аннотация: The elemental and fatty acid composition of seston was studied for 3 years, from May to October, in a small Reservoir. Under comparatively low C:P ratio, multivariate canonical analysis revealed no straightforward simple correlations between phosphorus and single ?3 PUFA species, but complex significant interaction between elemental composition (stoichiometry) of seston and total sestonic ?3 PUFA as a whole. Since sestonic C, P and N were found to originate mostly from phytoplankton, the contents of particulate elements and PUFA were attributed to single species in periods of their pronounced dominance. Phytoplankton species of genera of Stephanodiscus, Peridinium, Gomphosphaeria, Planktothrix and Anabaena in periods of their pronounced dominance had relatively constant species-specific elemental and PUFA composition. Phytoplankton species significantly differed in their elemental and PUFA composition, as well as in ratios of C:N, N:P, PUFA:P and partly C:P that indicate food quality for zooplankton. Hence, there were no phytoplankton species of clearly high or low nutritional value. All of phytoplankters, or at least detritus, that originated from them, may meet specific elemental and biochemical requirements of specific groups of zooplankton. Dividing phytoplankton on basis of their elemental and biochemical composition, i.e., nutrition quality, into large taxa (cyanobacteria, diatoms, etc.) appeared to be too coarse for assessing nutritional value for zooplankton. В© Springer Science+Business Media B.V. 2006.
Scopus
Найти похожие

13.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Gros J.B., Poughon L., Lasseur C., Tikhomirov A.A.
Заглавие : Recycling efficiencies of C,H,O,N,S, and P elements in a biological life support system based on micro-organisms and higher plants
Место публикации : Advances in Space Research. - 2003. - Vol. 31, Is. 1. - С. 195-199. - ISSN 02731177 (ISSN) , DOI 10.1016/S0273-1177(02)00739-1
Ключевые слова (''Своб.индексиров.''): biomass--biosynthesis--chemical elements--earth atmosphere--ecosystems--life support systems (spacecraft)--manned space flight--microorganisms--plants (botany)--wastes--compartments--space research--carbon--carbon dioxide--hydrogen--nitrogen--oxygen--phosphorus--sulfur--space technology--article--biological model--biomass--chemistry--comparative study--computer simulation--growth, development and aging--metabolism--methodology--microbiology--microclimate--plant--waste management--biomass--carbon--carbon dioxide--computer simulation--ecological systems, closed--environmental microbiology--hydrogen--life support systems--models, biological--nitrogen--oxygen--phosphorus--plants, edible--sulfur--waste management
Аннотация: MELiSSA is a microorganism based artificial ecosystem conceived as a tool for understanding the behavior of ecosystems and developing the technology for future Manned Space Missions. MELiSSA is composed of four compartments colonized by the microorganisms required by the function of this ecosystem : breakdown of waste produced by men, regeneration of atmosphere and biosynthesis of edible biomass. This paper reports the mass balance description of a Biological Life Support System composed of the MELiSSA loop and of a Higher Plant Compartment working in parallel with the photosynthetic Spirulina compartment producing edible biomass. The recycling efficiencies of the system are determined and compared for various working conditions of the MELiSSA loop with or without the HPC. В© 2002 Published by Elsevier Science Ltd on behalf of COSPAR.
Scopus
Найти похожие

14.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Bolsunovsky A.Y., Dement'ev D.V.
Заглавие : Rates of 32P accumulation by aquatic plants in the Yenisei river
Место публикации : Russian Journal of Ecology. - 2010. - Vol. 41, Is. 6. - С. 531-534. - ISSN 10674136 (ISSN) , DOI 10.1134/S1067413610060111
Ключевые слова (''Своб.индексиров.''): 32p--accumulation coefficient--aquatic plants--mining and chemical plant--the yenisei--aquatic plant--bioaccumulation--industrial waste--mine waste--phosphorus--river system--russian federation--yenisei river
Scopus
Найти похожие

15.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Gladyshev M. I.
Заглавие : Quality and Quantity of Biological Production in Water Bodies with Different Concentration of Phosphorus: Case Study of Eurasian Perch
Колич.характеристики :3 с
Коллективы : Russian Academy of Sciences [II.2P/VI.51-1]; State task of the Ministry of Education and Science of the Russian Federation [6.1504.2017/PCh]; Council for Grants of the President of the Russian Federation for State Support of Leading Scientific Schools [NSh-9249.2016.5]
Место публикации : Dokl. Biochem. Biophys.: MAIK NAUKA/INTERPERIODICA/SPRINGER, 2018. - Vol. 478, Is. 1. - С. 1-3. - ISSN 1607-6729, DOI 10.1134/S1607672918010015. - ISSN 1608-3091(eISSN)
Примечания : Cited References:15. - This work was supported by the project of the Russian Academy of Sciences no. II.2P/VI.51-1, the State task of the Ministry of Education and Science of the Russian Federation to the Siberian Federal University for research no. 6.1504.2017/PCh, and the Council for Grants of the President of the Russian Federation for State Support of Leading Scientific Schools (project no. NSh-9249.2016.5).
Предметные рубрики: POLYUNSATURATED FATTY-ACIDS
EPA
DHA
Аннотация: For the first time, the quantity of protectors of cardiovascular deceases-omega-3 polyunsaturated fatty acids, eicosapentaenoic (20:5n-3, EPA) and docosahexaenoic (22:6n-3, DHA), obtained through fish (Eurasian perch) catch in water bodies of different trophic status was determined. A formula was drawn to calculate the quantity of obtained EPA + DHA (kg km(-2) year(-1)) depending on the concentration of total phosphorus in water. It is found that the maximum quantity of EPA + DHA can be obtained by humans from fish caught in mesotrophic water bodies.
WOS,
Смотреть статью,
Scopus
Найти похожие

16.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Degermendzhi A.G., Kosolapova L.G., Belolipetskij V.M.
Заглавие : Predictive radioecological mathematical model of the Yenisei river
Место публикации : Radiatsionnaya Biologiya. Radioekologiya. - 2002. - Vol. 42, Is. 4. - С. 433-439. - ISSN 08698031 (ISSN)
Ключевые слова (''Своб.индексиров.''): cesium--contamination--mathematical models--phosphorus--radioisotopes--river pollution--cesium 137--phosphorus 32--radioecology--the yenisei river--ecosystems--bacteria (microorganisms)--fresh water--article--ecosystem--pollutant--russian federation--theoretical model--ecosystem--fresh water--models, theoretical--radioactive pollutants--russia
Аннотация: A one-dimensional mathematical model of the Yenisei river ecosystem including hydrological, ecosystem and radioecologicl blocks has been developed. The model was used to evaluate contribution of different processes (transfer by water masses, dilution, radioactive decay, bioaccumulation) into self-purification of the river water from a radiation pollution. The pollution density of ecosystem components (bacteria, phyto-, zooplankton, phyto-, zoobenthos, detritus) with 137Cs and 32P is calculated.
Scopus
Найти похожие

17.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Parfenova V.V., Shimaraev M.N., Kostornova T.Y., Domysheva V.M., Levin L.A., Dryukker V.V., Zhdanov A.A., Gnatovskii R.Y., Tsekhanovskii V.V., Logacheva N.F.
Заглавие : On the vertical distribution of microorganisms in Lake Baikal during spring deep-water renewal
Колич.характеристики :7 с
Место публикации : Microbiology: MAIK NAUKA/INTERPERIODICA, 2000. - Vol. 69, Is. 3. - P357-363. - ISSN 0026-2617
Примечания : Cited References: 21
Ключевые слова (''Своб.индексиров.''): bacterial population--phytoplankton and organic matter--deep-water renewal processes
Аннотация: The vertical distribution of microorganisms during spring deep-water renewal in Lake Baikal was studied. The downward advection of trophogenic waters was found to create conditions for the extensive growth of microorganisms capable of decomposing and mineralizing organic carbon, nitrogen, and phosphorus in deep water layers. These processes occur annually at spring thermal bars near the underwater slope of Lake Baikal, whereas in its pelagic zone. the deep intrusions of waters rich in organic material are observed only in the years when enhanced deep-water renewal is accompanied by a high spring yield of phytoplankton.
WOS
Найти похожие

18.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Galayda Ya.V., Pechurkin N.S., Shirobokova I.M., Pisman T.I.
Заглавие : Kinetic characteristics of the theoretical ecosystems with different extent of openness
Место публикации : Advances in Space Research. - 2005. - Vol. 35, Is. 9 SPEC. ISS. - С. 1516-1520. - ISSN 02731177 (ISSN) , DOI 10.1016/j.asr.2005.01.034
Ключевые слова (''Своб.индексиров.''): mathematic modeling--net primary production--residual concentration of biogenic limiting substances--trophic chain length--mathematic modeling--net primary production--residual concentration of biogenic limiting substances--trophic chain length--characterization--degradation--kinetic theory--mathematical models--nitrogen--phosphorus--recycling--surface waters--ecosystems--biological model--biomass--bioremediation--conference paper--ecosystem--food chain--microclimate--biodegradation, environmental--biomass--ecological systems, closed--ecosystem--food chain--life support systems--models, biological
Аннотация: In this paper, the influence of the extent of openness of ecosystem that is defined by the dilution rate, which characterizes the extent of flowage of the pond, on the intensity of the biotic circulation in ecosystems with different regulation types, number of trophic links and extent of closing has been investigated. We considered open systems, we took into account the return of the limiting substances, such as nitrogen and phosphorous, into the cycle by degradation of detritus and products of vital functions of consumers. It was shown by the numerical calculations that the increase of the dilution rate in without recycle ecosystems leads to increase of the net primary production up to the maximum value corresponding to the two-link trophic chain (biogenic substance and producer) and then, to gradually decrease. The residual concentration of biogenic limiting substances monotone increases. Net primary production and residual concentration of biogenic limiting substances in systems with recycle with even number of links behaves similarly to that in without recycle ecosystems. In the systems with recycle with the odd number of links that values lies on the stable level. We showed that in wide range of the dilution rate the recycling of the ecosystem can highly increase the net primary production and reduce residual concentration of biogenic limiting substances. The influence of the dilution rate on numbers of links that may exist in the system was analyzed. В© 2005 COSPAR. Published by Elsevier Ltd. All rights reserved.
Scopus
Найти похожие

19.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Gladyshev M. I., Glushchenko L. A., Kravchuk E. S., Anishchenko O. V., Kolmakova A. A., Kolobov M. Y., Razgoniaeva V. A., Sushchik N. N.
Заглавие : Isotope Composition of Nitrogen and Stoichiometric Ratios of Elements in Biomass ofSpirogyrain Lake Baikal
Колич.характеристики :3 с
Коллективы : En+ Group; Ecological Foundation of the Siberian Federal University; Russian FederationRussian Federation [51.1.1]
Место публикации : Dokl. Biochem. Biophys.: MAIK NAUKA/INTERPERIODICA/SPRINGER, 2020. - Vol. 491, Is. 1. - С. 70-72. - ISSN 1607-6729, DOI 10.1134/S1607672920020088. - ISSN 1608-3091(eISSN)
Примечания : Cited References:9. - The expedition was supported by the group of companies En+ Group and the Ecological Foundation of the Siberian Federal University. The study was performed under the State Assignment within the framework of the basic research program of the Russian Federation (topic no. 51.1.1).
Предметные рубрики: GREEN
ALGAE
TIDES
Аннотация: Using stable isotope analysis of nitrogen, for the first time the hypothesis on different sources of inorganic nutrients for two groups of littoral algae in Lake Baikal was confirmed. Strongly attached filamentous algae of genusUlothrix, which developed in the wave-braking zone at depth 0.5 m, and loosely attached filamentous algae of genusSpirogyra, which developed in deeper layers 3.0-5.0 m in a low-turbulence zone, get inorganic nutrients presumably from surface discharge and groundwater inputs, respectively. Besides, stoichiometric ratios C:N and N:P in biomass of the algae indicated that growth ofSpirogyrain Lake Baikal was likely limited by nitrogen, while growth ofUlothrixwas limited by phosphorus.
WOS
Найти похожие

20.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Gladyshev M. I., Glushchenko L. A., Kravchuk E. S., Anishchenko O. V., Kolmakova A. A., Kolobov M. Y., Razgoniaeva V. A., Sushchik N. N.
Заглавие : Isotope Composition of Nitrogen and Stoichiometric Ratios of Elements in Biomass of Spirogyra in Lake Baikal
Место публикации : Doklad. Biochem. Biophys.: Pleiades Publishing, 2020. - Vol. 491, Is. 1. - С. 70-72. - ISSN 16076729 (ISSN), DOI 10.1134/S1607672920020088
Аннотация: Abstract: Using stable isotope analysis of nitrogen, for the first time the hypothesis on different sources of inorganic nutrients for two groups of littoral algae in Lake Baikal was confirmed. Strongly attached filamentous algae of genus Ulothrix, which developed in the wave-braking zone at depth 0.5 m, and loosely attached filamentous algae of genus Spirogyra, which developed in deeper layers 3.0–5.0 m in a low-turbulence zone, get inorganic nutrients presumably from surface discharge and groundwater inputs, respectively. Besides, stoichiometric ratios C:N and N:P in biomass of the algae indicated that growth of Spirogyra in Lake Baikal was likely limited by nitrogen, while growth of Ulothrix was limited by phosphorus. © 2020, Pleiades Publishing, Ltd.
Scopus
Найти похожие