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The stoichiometric ratios (C:N:P) in a pelagic food web under experimental conditions / M. Karpowicz [et al.] // Limnologica. - 2019. - Vol. 77. - Ст. 125690, DOI 10.1016/j.limno.2019.125690 . - ISSN 0075-9511
Кл.слова (ненормированные):
Elemental and biochemical composition -- Food quality -- Lake nutrient stoichiometry -- Phytoplankton -- Trophic status -- Zooplankton -- algae -- Daphnia -- Daphnia magna -- Daphnia pulicaria -- Rotifera
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

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Держатели документа:
Department of Hydrobiology, Institute of Biology, University of Bialystok, Ciolkowskiego 1J, Bialystok, 15-245, Poland
Institute of Ecology and Evolution, Russian Academy of Sciences, Leninsky Prospect 33, Moscow, Russian Federation
Siberian Federal University, Svobodny av. 79, Krasnoyarsk, 660041, Russian Federation
Institute of Biophysics of Federal Research Centre, Krasnoyarsk Science Centre of Siberian Branch of Russian Academy of Sciences, Akademgorodok, Krasnoyarsk, 660036, Russian Federation
Research Station in Mikolajki, Nencki Institute of Experimental Biology, Poland Academy of Sciences, 3 Pasteur Street, Warsaw, 02-093, Poland
Department of Environmental Protection, Institute of Biology, University of Bialystok, Ciolkowskiego 1J, Bialystok, 15-245, Poland
Department of Hydrobiology, Faculty of Biology, Biological and Chemical Research Center, University of Warsaw, Zwirki i Wigury 101, Warsaw, 02-089, Poland
Department of Integrative Biology, Oklahoma State University, Stillwater, OK 74078, United States

Доп.точки доступа:
Karpowicz, M.; Feniova, I.; Gladyshev, M. I.; Ejsmont-Karabin, J.; Gorniak, A.; Zielinski, P.; Dawidowicz, P.; Kolmakova, A. A.; Dzialowski, A. R.

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Factors of Dynamics of Plankton Crustacean Communities under Eutrophic Conditions / I. Y. Feniova [et al.] // Russ. J. Ecol. - 2019. - Vol. 50, Is. 1. - P50-57, DOI 10.1134/S1067413619010028. - Cited References:35. - The experiments and collection of biological samples were carried out with support from the Polish National Science Center (UMO-506 2016/21/B/NZ8/00434). Phytoplankton samples were processed with support from the Russian Foundation for Basic Research (project no. 18-54-00002 Bel_a), zooplankton samples were processed with support from the Belarusian Republican Foundation for Basic Research (project nos. B18SRBG-007 and B18KI-007). Statistical analysis, interpretation of the results, literature review and preparation of publication were performed with support from the Russian Science Foundation (project no. 16-14-10323). . - ISSN 1067-4136. - ISSN 1608-3334

РУБ Ecology
Рубрики:
FOOD QUALITY
   STOICHIOMETRY
   LIMITATION
   GROWTH
   WATER
   NITROGEN
Кл.слова (ненормированные):
mesocosms -- nutrients -- chlorophyll -- biomass of crustaceans -- species -- structure of zooplankton -- food quality
Аннотация: It has been shown that the main drivers of the dynamics of cladoceran and copepod abundances can be predators (fish), the quantity and/or quality of food in terms of the contents of eicosapentaenoic acid, phosphorus and nitrogen in the seston under eutrophic conditions. In experimental mesocosms under eutrophic conditions, we found that, fish did not affect the quantity and quality of food resources for crustaceans. In the second half of experiments, however, dominance shifted from copepods to cladocerans. This was due to the improvement of the food quality for cladocerans in terms of the carbon-to-phosphorus ratio in the seston rather than to fish predation. Under eutrophic conditions, fish reduced the biomass of both cladocerans and copepods without changing the ratio between them.

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Russian Acad Sci, Severtsov Inst Ecol & Evolut, Moscow 119071, Russia.
Natl Acad Sci Belarus, Sci & Pract Ctr Bioresources, Minsk 220072, BELARUS.
Russian Acad Sci, Siberian Branch, Krasnoyarsk Sci Ctr, Inst Biophys, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, Krasnoyarsk 660041, Russia.
Univ Warsaw, Fac Biol, PL-02096 Warsaw, Poland.
Nencki Inst Expt Biol, Hydrobiol Stn, PL-11730 Mikolajki, Poland.
Russian Acad Sci, Obukhov Inst Atmospher Phys, Moscow 119017, Russia.

Доп.точки доступа:
Feniova, I. Yu.; Razlutskij, V. I.; Gladyshev, M. I.; Kostrzewska-Szlakowska, I.; Majsak, N. N.; Rzepecki, M.; Sushchik, N. N.; Zilitinkevich, N. S.; Polish National Science Center [UMO-506 2016/21/B/NZ8/00434]; Russian Foundation for Basic Research [18-54-00002 Bel_a]; Belarusian Republican Foundation for Basic Research [B18SRBG-007, B18KI-007]; Russian Science Foundation [16-14-10323]

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Diverse impacts of semiaquatic bird colonies on biochemical composition of seston, plankton, and fish fry in a plain reservoir / A. V. Krylov [и др.] // Zhurnal Obshchei Biol. - 2018. - Vol. 79, Is. 6. - С. 449-460, DOI 10.1134/S0044459618060052. - Cited References:47 . - ISSN 0044-4596

РУБ Biology
Рубрики:
FATTY-ACID-COMPOSITION
   GROWTH
   ZOOPLANKTON
   ECOSYSTEMS
   NITROGEN
Аннотация: Diverse, multidirectional changes in biochemical composition of seston, plankton, and fish fry are detected in the coastal zone of a plain reservoir in the vicinity of a semiaquatic bird colony during vegetation season with extra high water level. Under these conditions, specific patterns of phyto- and zooplankton structure and quantitative characteristics, that, as was found out earlier, result from the vital activity of birds belonging to the family Ardeidae (namely, raising the share of mixotrophic phytoflagellates and copepods in plankton species composition) are leveled out. The main role in this process belongs to decomposition of immersed vegetation in the coastal zone, development of littoral macrophytes, and trophic relationships between algae and invertebrates. However, increase in atmospheric precipitation leads to increase in copepods abundance, which seems to be related to fast and intensive inflow of nitrogen-rich products of birds' vital activity. Due to this, during the whole period of observations, the following tendencies are revealed in biochemical composition of seston, plankton, and fish fry in the vicinity of the bird colony: 1) concentrations of carbon, nitrogen, and phosphorus and their ratios turn out to be auspicious for predominance of diatoms and mixotrophic phytoflagellates, rich in docosahexaenoic acid (DSA); 2) the abundance of phytoplankton, rich in polyunsaturated essential fatty acids (PEFA), favors propagation of those planktonic crustaceans which contain significantly more DSA and are more valuable food items for fish; 3) predominance of zooplankters, rich in PEFA, leads to higher concentration of PEFA in fry fish tissues, which, in certain periods, turns out to be advantageous for successful development and growth of dominant species of fish fry,such as roach, bream, white bream, and perch, by comparison with the test site.

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RAS, Papanin Inst Biol Inland Waters, Borok 152742, Yaroslavl Regio, Russia.
SD RAS, Krasnoyarsk Sci Ctr, Fed Res Ctr, Inst Biophys, Academgorodok 50,Bldg 50, Krasnoyarsk 660036, Russia.
Syberian Fed Univ, Svobodny Prosp 79, Krasnoyarsk 660041, Russia.

Доп.точки доступа:
Krylov, A., V; Makhutova, N.; Sakharova, E. G.; Sushchik, N. N.; Pavlov, D. D.; Kolmakova, A. A.; Stolbunov, I. A.; Gladyshev, M., I; Sakharova, Ekaterina

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Isotope Composition of Nitrogen and Stoichiometric Ratios of Elements in Biomass of Spirogyra in Lake Baikal / M. I. Gladyshev, L. A. Glushchenko, E. S. Kravchuk [et al.] // Doklad. Biochem. Biophys. - 2020. - Vol. 491, Is. 1. - P70-72, DOI 10.1134/S1607672920020088 . - ISSN 1607-6729
Кл.слова (ненормированные):
C:N:P stoichiometry -- inorganic nutrients -- “green tide,” green filamentous algae
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.

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Держатели документа:
Institute of Biophysics, Krasnoyarsk Scientific Center of the Russian Academy of Sciences, Siberian Branch, Russian Academy of Sciences, Krasnoyarsk, 660036, Russian Federation
Siberian Federal University, Krasnoyarsk, 660041, Russian Federation
Moscow State University, Moscow, 119991, Russian Federation

Доп.точки доступа:
Gladyshev, M. I.; Glushchenko, L. A.; Kravchuk, E. S.; Anishchenko, O. V.; Kolmakova, A. A.; Kolobov, M. Y.; Razgoniaeva, V. A.; Sushchik, N. N.

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Effect of nanoparticles in growth of test - Bacteria / S. V. Stolyar, L. A. Chekanova, R. N. Yaroslavtsev [et al.] // Journal of Physics: Conference Series : Institute of Physics Publishing, 2019. - Vol. 1399: International Scientific Conference on Applied Physics, Information Technologies and Engineering 2019, APITECH 2019 (25 September 2019 through 27 September 2019, ) Conference code: 156053, Is. 2. - Ст. 022029, DOI 10.1088/1742-6596/1399/2/022029
Кл.слова (ненормированные):
Coefficient of performance -- Hematite -- Industrial water treatment -- Nanomagnetics -- Nanoparticles -- Nickel compounds -- Nickel-Phosphorus -- Silver compounds -- Testing -- Water conservation -- Anti-microbial properties -- Klebsiella pneumoniae -- Magnetic composites -- Magnetic nano-particles -- Magnetic particle -- Pseudomonas aeruginosa -- Staphylococcus aureus -- Water treatment facilities -- Bacteria
Аннотация: Confident effect of five magnetic composite nanoparticles (FeP@Ag, FeP@Pd, CoP, NiP, Fe2O3@A) on growth of test bacteria colonies (Acinetobacter baumannii, scherichia coli, Klebsiella pneumoniae, Pseudomonas aeruginosa, Staphylococcus aureus) in five replicates each is considered. Reliable inhibitors of colonies of all five test bacteria were nanoparticles FeP@Ag. CoP nanoparticles are reliable inhibitors of growth of 4 test bacteria (except for test bacteria Escherichia oli). NiP nanoparticles are reliable inhibitors of growth of 2 test bacteria: Escherichia oli and Klebsiella pneumoniae. Bacteria Escherichia oli were most sensitive to the effect of magnetic nanoparticles; and bacteria Pseudomonas aeruginosa and Staphylococcus aureus were most resistant to the effect of magnetic nanoparticles. The prospects of the method are in the possibility of multiple reuse of the magnetic particles with antimicrobial properties for bacterial decontamination of the studied sources of water and removal of magnetic nanoparticles from the treated liquids by electromagnet. The method can find use in water treatment facilities for household, Industrial and medical wastes. © Published under licence by IOP Publishing Ltd.

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Держатели документа:
Federal Research Center, Krasnoyarsk Science Center, Siberian Branch of the Russian Academy of Sciences, Akademgorodok, 50, Krasnoyarsk, Russian Federation
Siberian Federal University, Svobodnyi pr. 79, Krasnoyarsk, Russian Federation
Kirensky Institute of Physics, 50/38 Akademgorodok, Krasnoyarsk, Russian Federation
Institute of Biophysics of the Siberian Branch of the Russian Academy of Sciences, 50/12 Akademgorodok, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Stolyar, S. V.; Chekanova, L. A.; Yaroslavtsev, R. N.; Ladygina, V. P.; Tirranen, L. S.

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Direct and indirect impacts of fish on crustacean zooplankton in experimental mesocosms / I. Feniova [et al.] // Water. - 2019. - Vol. 11, Is. 10. - Ст. 2090, DOI 10.3390/w11102090 . - ISSN 2073-4441
Кл.слова (ненормированные):
Fish effects -- Mesocosm experiments -- Nutrients -- Phytoplankton -- Polyunsaturated fatty acids -- Population growth rate -- Small and large cladocerans -- Stoichiometric elemental composition -- Zooplankton -- Fish -- Lakes -- Nutrients -- Phosphorus -- Phytoplankton -- Plankton -- Polyunsaturated fatty acids -- Population statistics -- Elemental compositions -- Mesocosms -- Population growth rates -- Small and large cladocerans -- Zooplankton -- Meats -- algae -- Ceriodaphnia -- Crustacea -- Daphnia
Аннотация: Understanding the factors that regulate phytoplankton and zooplankton is an important goal of aquatic ecologists; however, much remains unknown because of complex interactions between phytoplankton, zooplankton, and fish. Zooplankton, in particular cladocerans, can be regulated by bottom-up factors either via food quantity or food quality in terms of polyunsaturated fatty acids (PUFA) or phosphorus (P) contents in phytoplankton. Fish can recycle nutrients and in turn change the PUFA and P contents of algal resources, thus modifying bottom-up regulation. Furthermore, fish can change phytoplankton structure through consumption of cladocerans which selectively graze phytoplankton. We conducted a mesocosm (300 L) experiment to determine how trophic state and fish affected crustacean dynamics. The mesocosms were filled with water containing natural plankton from the eutrophic Lake Jorzec and mesotrophic Lake Majcz (Northeastern Poland), and we manipulated fish presence/absence. We also conducted a complementary life-table experiment to determine how trophic state and fish nonconsumptively affected demographic parameters of the dominant cladocerans in the mesocosms. Small and large cladoceran species responded differently to food quantity and quality. Small-bodied Ceriodaphnia were regulated mainly by resource concentrations (i.e., food quantity), while large species were limited by PUFAs (i.e., food quality). Fish likely increased food quality in terms of PUFA, primarily eicosapentaenoic acids (EPA), thus providing conditions for more successful development of Daphnia than in the fish-free treatments. Phosphorus in the seston was likely limiting for zooplankton. However, food quality in terms of phosphorus was likely less important than PUFA because zooplankton can accumulate nutrients in their body. © 2019 by the authors.

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Держатели документа:
Institute of Ecology and Evolution, Russian Academy of Sciences, Leninsky Prospect 33, Moscow, 119071, Russian Federation
Papanin Institute for Biology of Inland Waters, Russian Academy of Sciences, Borok, 152742, Russian Federation
Department of Hydrobiology, Institute of Biology, University of Bialystok, Ciolkowskiego 1J, Bialystok, 15-245, Poland
Institute of Biophysics of Federal Research Centre, Krasnoyarsk Science Centre of Siberian Branch of Russian Academy of Sciences, Akademgorodok, Krasnoyarsk, 660036, Russian Federation
Siberian Federal University, Svobodny Av. 79, Krasnoyarsk, 660041, Russian Federation
Department of Hydrobiology, Faculty of Biology, Biological and Chemical Research Center, University of Warsaw, Zwirki i Wigury 101, Warsaw, 02-089, Poland
The Scientific and Practical Center for Bioresources, National Academy of Sciences of Belarus, Minsk, 220072, Belarus
Department of Integrative Biology, Oklahoma State University, Stillwater, OK 74078, United States

Доп.точки доступа:
Feniova, I.; Sakharova, E.; Karpowicz, M.; Gladyshev, M. I.; Sushchik, N. N.; Dawidowicz, P.; Gorelysheva, Z.; Gorniak, A.; Stroinov, Y.; Dzialowski, A.

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Quality and Quantity of Biological Production in Water Bodies with Different Concentration of Phosphorus: Case Study of Eurasian Perch / M. I. Gladyshev // Dokl. Biochem. Biophys. - 2018. - Vol. 478, Is. 1. - P1-3, DOI 10.1134/S1607672918010015. - 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). . - ISSN 1607-6729. - ISSN 1608-3091

РУБ Biochemistry & Molecular Biology + Biophysics
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.

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Держатели документа:
Russian Acad Sci, Krasnoyarsk Res Ctr, Inst Biophys, Siberian Branch, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, Krasnoyarsk 660041, Russia.

Доп.точки доступа:
Gladyshev, M. I.; 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]

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Experimental effects of large-bodied Daphnia, fish and zebra mussels on cladoceran community and size structure [Text] / I. Feniova [et al.] // J. Plankton Res. - 2015. - Vol. 37, Is. 3. - P611-625, DOI 10.1093/plankt/fbv022. - Cited References:66. - This research was supported by the Polish National Science Centre (2012/05/B/N28/02684). The work also was supported by grants of Belorussian Foundation for Basic Research ((sic)12P-98), Russian Foundation for Basic Research (14-04-00087), Siberian Federal University project, carried out according to Federal Tasks of Ministry of Education and Science of Russian Federation (6.1089.214/K) and by Russian Federal Tasks of Fundamental Research (51.1.1). . - ISSN 0142-7873. - ISSN 1464-3774

РУБ Marine & Freshwater Biology + Oceanography
Рубрики:
FRESH-WATER ZOOPLANKTON
POLYUNSATURATED FATTY-ACIDS
LAKE-ERIE
Кл.слова (ненормированные):
alien species -- large- and small-bodied cladocerans -- invasion mechanisms -- PUFA -- C:N:P ratios
Аннотация: Understanding the factors that regulate the abundance, size structure and community structure of cladocerans is an important goal of aquatic ecologists. While both top-down and bottom-up factors help to structure cladoceran communities, there may be interactions between these factors. We conducted a mesocosm study to determine how alien large-bodied Daphnia, zebra mussels and fish affected cladoceran community and size structure. We found that large-bodied Daphnia reduced algal resources and the fecundity of smaller bodied cladocerans. Fish removed the large-bodied Daphnia magna from the mesocosms and shifted the cladoceran community to a smaller body size. Fish also appeared to promote increases in cladoceran diversity through the coexistence of several smaller bodied taxa. In contrast, zebra mussels increased cyanobacteria and helped to promote the success of the alien Daphnia, but reduced the biomass of small-bodied cladocerans. Zebra mussels reduced the carbon (C):phosphorus (P) ratio of the phytoplankton in the mesocosms which may have favored the relatively P-limited Daphnia. Combined, our results highlight the complex interactions of multiple factors that help to regulate cladoceran community and size structure.

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Держатели документа:
Russian Acad Sci, AN Severtsov Inst Ecol & Evolut, Moscow 119071, Russia.
Univ Warsaw, Biol & Chem Res Ctr, Inst Zool, Dept Hydrobiol, PL-02089 Warsaw, Poland.
Russian Acad Sci, Inst Biophys, Siberian Branch, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, Krasnoyarsk 660041, Russia.
Polish Acad Sci, M Nencki Inst Expt Biol, PL-02093 Warsaw, Poland.
Natl Acad Sci Belarus, Sci & Pract Ctr Bioresources, Minsk 220072, Byelarus.
Oklahoma State Univ, Dept Integrat Biol, Stillwater, OK 74078 USA.

Доп.точки доступа:
Feniova, Irina; Dawidowicz, Piotr; Gladyshev, Michail I.; Kostrzewska-Szlakowska, Iwona; Rzepecki, Marek; Razlutskij, Vladimir; Sushchik, Nadezda N.; Majsak, Natalia; Dzialowski, Andrew R.; Polish National Science Centre [2012/05/B/N28/02684]; Belorussian Foundation for Basic Research [(sic)12P-98]; Russian Foundation for Basic Research [14-04-00087]; Siberian Federal University project; Russian Federal Tasks of Fundamental Research [51.1.1]

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Increase of atmospheric CO2: Response patterns of a simple terrestrial man-made ecosystem [Text] / L. A. Somova, N. S. Pechurkin, T. I. Pisman ; ed. M Nelson [et al.] // SPACE LIFE SCIENCES: CLOSED ARTIFICIAL ECOSYSTEMS AND LIFE SUPPORT SYSTEMS. Ser. ADVANCES IN SPACE RESEARCH : PERGAMON-ELSEVIER SCIENCE LTD, 2003. - Vol. 31: Meeting of F4 1 Session of the 34th Scientific Assembly of COSPAR (OCT, 2002, HOUSTON, TEXAS), Is. 7. - P. 1731-1735, DOI 10.1016/S0273-1177(03)00110-8. - Cited References: 22 . - ISBN 0273-1177

РУБ Engineering, Aerospace + Astronomy & Astrophysics + Ecology + Geosciences, Multidisciplinary + Meteorology & Atmospheric Sciences
Рубрики:
ELEVATED CARBON-DIOXIDE
   MATHEMATICAL-MODEL
   MICROORGANISMS
   NITROGEN
   LIMITATION
   ENRICHMENT
   DYNAMICS
   SYSTEM
Аннотация: Simple models of terrestrial ecosystems with a limited number of components are an efficient tool to study the main laws of functioning of populations, including microbial ones, and their communities, as components of natural ecosystems, under variable environmental conditions. Among other factors are the increase of carbon dioxide in the atmosphere and limitation of plants' growth by biogenic elements. The main types of ecosystems' responses to changes in environmental conditions (a change in CO2 concentration) have been demonstrated in a "plants - rhizospheric microorganisms - artificial soil" simple experimental system. The mathematical model of interactions between plants and microorganisms under normal and elevated atmospheric CO2 and limitation by nutrients (nitrogen and phosphorus) yielded a qualitative agreement between calculated and experimental values of limiting substances concentrations and release rates of exudates. (C) 2003 COSPAR. Published by Elsevier Science Ltd. All rights reserved.

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Держатели документа:
Russian Acad Sci, Inst Biophys, Krasnoyarsk 660036, Russia
ИБФ СО РАН : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Somova, L.A.; Pechurkin, N.S.; Pisman, T.I.; Nelson, M \ed.\; Pechurkin, NS \ed.\; Dempster, WF \ed.\; Somova, LA \ed.\; Somo, , LA \ed.\

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10.

Green Tides: New Consequences of the Eutrophication of Natural Waters (Invited Review) / M. I. Gladyshev, Y. I. Gubelit // Contemp. Probl. Ecol. - 2019. - Vol. 12, Is. 2. - P109-125, DOI 10.1134/S1995425519020057. - Cited References:134. - This study was supported by a state task as part of fundamental research program of the Russian Federation no. VI. 51.1.9, no. 6.1504.2017/PCh, and no. AAAA-A19-119020690091-0. . - ISSN 1995-4255. - ISSN 1995-4263

РУБ Ecology
Рубрики:
CLADOPHORA-GLOMERATA CHLOROPHYTA
BENTHIC ALGAL COMMUNITY
MACROALGAL
Кл.слова (ненормированные):
nuisance algal blooms -- Ulva -- Cladophora -- Spirogyra -- metaphyton -- benthification
Аннотация: In recent decades, alongside the comparatively well-studied bloom caused by phytoplankton, a bloom of marine and fresh waters caused by littoral benthic macroalgae of three generaUlva, Cladophora, and Spirogyrahave become a global phenomenon. In the present review, an attempt is made to gain an understanding of why it is these taxa of green filamentous algae that start to grow rapidly in the spring in many water bodies and streams, including oligotrophic waters, and then float up from the bottom, forming floating mats (metaphyton); then their decaying masses are washed ashore and cause substantial ecological and economical losses. Peculiar and common ecological and physiological features of Ulva, Cladophora, and Spirogyra favorable for the formation of green tides are considered. Although eutrophication (the supply of nitrogen and phosphorus from agricultural lands, industrial and domestic wastewaters, and aquaculture) is the evident cause of the increase in algal biomass, it is suggested that the location of external fluxes of inorganic nutrients (surface runoff or groundwater discharge), as well as the biogenic redirection of internal fluxes of nitrogen and phosphorus from pelagial to littoral (benthification), play a key role in the formation of green tides. Measures for controlling green tides are discussed. The necessity for detailed studies of the metaphytonic form of vegetation of benthic macroalgae is emphasized. Obviously, a revision of the present concept of oligotrophic/eutrophic waters which considers only the pelagic compartments of aquatic ecosystems is required.

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Держатели документа:
Siberian Fed Univ, Krasnoyarsk 660041, Russia.
Russian Acad Sci, Krasnoyarsk Sci Ctr, Siberian Branch, Inst Biophys, Krasnoyarsk 660036, Russia.
Russian Acad Sci, Zool Inst, St Petersburg 199034, Russia.

Доп.точки доступа:
Gladyshev, M. I.; Gubelit, Y. I.; state task as part of fundamental research program of the Russian Federation [51.1.9, 6.1504.2017/PCh, AAAA-A19-119020690091-0]

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11.

STOICHIOMETRIC COMPOSITION OF SESTON IN LITTORAL AND PELAGIAL ZONES OF SHALLOW LAKE OBSTERNO (BELARUS) / Z. F. Buseva [и др.] // Dokl. Nat. Akad. Nauk Belarusi. - 2018. - Vol. 62, Is. 3. - С. 304-310, DOI 10.29235/1561-8323-2018-62-3-304-310. - 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. . - ISSN 1561-8323. - ISSN 2524-2431

РУБ Multidisciplinary Sciences
Рубрики:
NUTRIENT LIMITATION
   PHOSPHORUS
   NITROGEN
   ZOOPLANKTON
   CARBON
   MARINE
Кл.слова (ненормированные):
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.

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Держатели документа:
Natl Acad Sci Belarus Bioresources, Sci & Pract Ctr, 27 Akad Skaya Str, Minsk 220072, BELARUS.
Naroch Biol Stn, Naroch, BELARUS.
Russian Acad Sci, Siberian Branch, Inst Biophys, 50-50 Akademgorodok Str, Krasnoyarsk 660036, Russia.
Naroch Biol Stn, Miadel Dist 220095, Minsk Region, BELARUS.

Доп.точки доступа:
Buseva, Zhanna F.; Farahani, Shabnam Bahman Gazerani; Veras, Yulia K.; Kolmakova, Anzhelika A.; Sushchik, Nadezhda N.; BRFFR [17-037]

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12.

Effects of zebra mussels on cladoceran communities under eutrophic conditions / I. Feniova [et al.] // Hydrobiologia. - 2018. - P1-18, DOI 10.1007/s10750-018-3699-4 . - ISSN 0018-8158
Кл.слова (ненормированные):
Chlorophyll -- Food quality -- Life-table experiments -- Phosphorus limitation -- Zooplankton
Аннотация: The purpose of this study was to determine how zebra mussels affected cladoceran community structure under eutrophic conditions. We conducted a mesocosm study where we manipulated the presence of zebra mussels and the presence of large-bodied Daphnia (Daphnia magna and Daphnia pulicaria). We also conducted a complimentary life-table experiment to determine how water from the zebra mussel treatment affected the life history characteristics of the cladoceran species. We anticipated that small- and large-bodied cladoceran species would respond differently to changes in algal quality and quantity under the effects of zebra mussels. Large-bodied Daphnia successfully established in the zebra mussel treatment but failed to grow in the control. We did not observe positive relationships between food concentrations and cladoceran abundances. However, the phosphorus content in the seston indicated that food quality was below the threshold level for large-bodied cladocerans at the beginning of the experiment. We believe that zebra mussels quickly enhanced the phosphorus content in the seston due to the excretion of inorganic phosphorus, thus facilitating the development of large-bodied Daphnia. In conclusion, our results suggest that zebra mussels can alter the phosphorus content of seston in lakes and this can affect the dynamics of crustacean zooplankton. © 2018 Springer International Publishing AG, part of Springer Nature

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Держатели документа:
Institute of Ecology and Evolution, Russian Academy of Sciences, Leninsky Prospect 33, Moscow, Russian Federation
Department of Hydrobiology, Faculty of Biology, Biological and Chemical Research Center, University of Warsaw, Zwirki i Wigury 101, Warsaw, Poland
Nencki Institute of Experimental Biology, Hydrobiological Station, Lesna 13, Mikolajki, Poland
Institute of Biophysics of Federal Research Centre, Krasnoyarsk Science Centre of Siberian Branch of Russian Academy of Sciences, Akademgorodok, Krasnoyarsk, Russian Federation
Siberian Federal University, Svobodny Av. 79, Krasnoyarsk, Russian Federation
Department of Lake Fisheries, Inland Fisheries Institute in Olsztyn, Rajska 2, Gizycko, Poland
Department of Hydrobiology, Institute of Biology, University of Bialystok, Ciolkowskiego 1J, Bialystok, Poland
Faculty of Biology, University of Warsaw, Miecznikowa 1, Warsaw, Poland
The Scientific and Practical Center for Bioresources, National Academy of Sciences of Belarus, Str. Akademicheskaya, 27, Minsk, Belarus
Department of Integrative Biology, Oklahoma State University, Stillwater, OK, United States

Доп.точки доступа:
Feniova, I.; Dawidowicz, P.; Ejsmont-Karabin, J.; Gladyshev, M.; Kalinowska, K.; Karpowicz, M.; Kostrzewska-Szlakowska, I.; Majsak, N.; Petrosyan, V.; Razlutskij, V.; Rzepecki, M.; Sushchik, N.; Dzialowski, A. R.

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13.

РУБ Biochemistry & Molecular Biology + Biophysics
Рубрики:
GREEN
ALGAE
TIDES
Кл.слова (ненормированные):
"green tide -- " green filamentous algae -- inorganic nutrients -- C -- N -- P -- stoichiometry
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.

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Держатели документа:
Russian Acad Sci, Inst Biophys, Krasnoyarsk Sci Ctr, Siberian Branch, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, Krasnoyarsk 660041, Russia.
Moscow MV Lomonosov State Univ, Moscow 119991, Russia.

Доп.точки доступа:
Gladyshev, M. I.; Glushchenko, L. A.; Kravchuk, E. S.; Anishchenko, O. V.; Kolmakova, A. A.; Kolobov, M. Y.; Razgoniaeva, V. A.; Sushchik, N. N.; En+ Group; Ecological Foundation of the Siberian Federal University; Russian FederationRussian Federation [51.1.1]

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14.

EFFECTS OF FISH ON THE TRANSFER EFFICIENCY OF CARBON, PUFA AND NUTRIENTS FROM PHYTOPLANKTON TO ZOOPLANKTON UNDER EUTROPHIC CONDITIONS / I. Y. Feniova, E. G. Sakharova, M. I. Gladyshev [и др.] // Zool. Zhurnal. - 2021. - Vol. 100, Is. 2. - С. 194-208, DOI 10.31857/S0044513421020215. - Cited References:49 . - ISSN 0044-5134

РУБ Zoology
Рубрики:
FATTY-ACIDS
   FOOD QUALITY
   FRESH-WATER
   ZEBRA MUSSELS
   PHOSPHORUS
Кл.слова (ненормированные):
primary and secondary production -- carbon -- nitrogen -- phosphorus -- phyto- -- and zooplankton -- fish -- eutrophic conditions -- efficiency of substance -- transfer -- mesocosm
Аннотация: The efficiency of the transfer of carbon, polyunsaturated fatty acids (PUFA), nitrogen and phosphorus from phytoplankton to zooplankton determines the functioning of the entire ecosystem. However, this parameter depends on environmental conditions. Fish as a very important factor to regulate planktonic communities are very likely to affect the efficiency of the transfer of basic elements and substances from phytoplankton to zoo plankton. In experimental mesocosms filled with water from an eutrophic lake and containing phyto- and zooplankton, we investigated how fish affect both primary and secondary production and the efficiency of transfer of carbon, nitrogen, phosphorus, PUFA and fatty acids (FA) from phytoplankton to zooplankton. Two treatments (control and fish treatment) were repeated in three replicates. The transfer efficiency of substances from phytoplankton to zooplankton was measured as the ratio of secondary to primary production, expressed in liters and per biomass unit in percent. The efficiency expressed per liter characterizes the productivity of the water body, while the efficiency expressed per biomass unit indicates the effectiveness of aquatic species to transfer biologically valuable substances from one trophic level to another. We found that phytoplankton-zooplankton-fish interactions are determined not only by predator-prey relationships, but also are affected by the quality of both phytoplankton and zooplankton, measured as the contents of phosphorus, nitrogen, PUFA and FA in their biomass. We showed that, in the presence of fish, the transfer efficiency of carbon, phosphorus, nitrogen, eicosapentaenoic acid (EPA), docosahexaenoic acid (DHA), FA per biomass unit from phytoplankton to zooplankton was increased two-fold, 12.4-fold, 2,5-fold, 12.4-fold, 7.4-fold, and 10-fold, respectively, relative to control. This provides the sustainability of the functioning of the ecosystem under fish pressure. Such a mechanism prevents zooplankton over-exploitation by fish and enables to prolong the food chain.

WOS
Держатели документа:
Russian Acad Sci, Inst Ecol & Evolut, Moscow 119071, Russia.
Russian Acad Sci, Papanin Inst Biol Inland Waters, Borok 152742, Russia.
Russian Acad Sci, Fed Res Ctr, Krasnoyarsk Sci Ctr, Inst Biophys, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, Krasnoyarsk 660041, Russia.
Natl Acad Sci Belarus, Sci & Pract Ctr Bioresources, Minsk 220072, BELARUS.
Univ Bialystok, Inst Biol, Dept Hydrobiol, PL-15245 Bialystok, Poland.

Доп.точки доступа:
Feniova, I. Yu; Sakharova, E. G.; Gladyshev, M., I; Sushchik, N. N.; Gorelysheva, Z., I; Karpowicz, M.

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15.

Transfer efficiency of carbon, nutrients, and polyunsaturated fatty acids in planktonic food webs under different environmental conditions / M. Karpowicz, I. Feniova, M. I. Gladyshev [et al.] // Ecol. Evol. - 2021, DOI 10.1002/ece3.7651. - 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. . - Article in press. - ISSN 2045-7758

РУБ Ecology + Evolutionary Biology
Рубрики:
PHOSPHORUS STOICHIOMETRY
   LIGHT-INTENSITY
   ZOOPLANKTON
   TEMPERATURE
Кл.слова (ненормированные):
biogeochemical cycle -- dystrophication -- essential substances -- eutrophication -- food quality -- phytoplankton -- zooplankton
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
Держатели документа:
Univ Bialystok, Dept Hydrobiol, Fac Biol, Ciolkowskiego 1J, PL-15245 Bialystok, Poland.
Russian Acad Sci, Inst Ecol & Evolut, Moscow, Russia.
Russian Acad Sci, Krasnoyarsk Sci Ctr, Siberian Branch, Inst Biophys,Fed Res Ctr, Krasnoyarsk, Russia.
Siberian Fed Univ, Krasnoyarsk, Russia.
Polish Acad Sci, Nencki Inst Expt Biol, Res Stn Mikolajki, Warsaw, Poland.
Oklahoma State Univ, Dept Integrat Biol, Stillwater, OK 74078 USA.

Доп.точки доступа:
Karpowicz, Maciej; Feniova, Irina; Gladyshev, Michail I.; Ejsmont-Karabin, Jolanta; Gorniak, Andrzej; Sushchik, Nadezhda N.; Anishchenko, Olesya V.; Dzialowski, Andrew R.; 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]

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16.

Winter atmospheric nutrient and pollutant deposition on Western Sayan Mountain lakes (Siberia) / DQD Diaz, A. V. Ageev, E. A. Ivanova, O. V. Anishchenko // Biogeosciences. - 2021. - Vol. 18, Is. 5. - P1601-1618, DOI 10.5194/bg-18-1601-2021. - 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). . - ISSN 1726-4170. - ISSN 1726-4189

РУБ Ecology + Geosciences, Multidisciplinary
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
Держатели документа:
Siberian Fed Univ, 79 Svobondyi Prospekt, Krasnoyarsk 660041, Krasnoyarsk Kra, Russia.
Russian Acad Sci, Siberian Branch, Inst Biophys, 50-50 Akademgorodok, Krasnoyarsk 660041, Krasnoyarsk Kra, Russia.

Доп.точки доступа:
Diaz, A. V.; Ageev, Aleksander Vladimirovich; Ivanova, Elena Anatolevna; Anishchenko, Olesia Valerevna; 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]

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17.

Effect of Fish on the Transfer Efficiency of Carbon, PUFA, and Nutrients from Phytoplankton to Zooplankton under Eutrophic Conditions / I. Y. Feniova, E. G. Sakharova, M. I. Gladyshev [et al.] // Biol. Bull. - 2021. - Vol. 48, Is. 8. - P1284-1297, DOI 10.1134/S1062359021080070. - Cited References:49. - Experiments and collection of biological material were supported by the National Science Center of Poland (project no. UMO-506 2016/21/B/NZ8/00434). Processing of phytoplankton samples was carried out with the financial support of the Russian Foundation for Basic Research (project no. 18-54-00002 Bel_a); processing of zooplankton samples and their analysis were carried out with the financial support of the Belarusian Republican Foundation for Basic Research (BRFFR no. B18R-004); statistical processing and analysis of data were performed under government contract no. AAAA-A18-118012690096-1; and interpretation of the results, data analysis, and preparation of materials for publication, were done with the financial support of the Russian Science Foundation (project no. 16-14-10323). . - ISSN 1062-3590. - ISSN 1608-3059

РУБ Biology
Рубрики:
FATTY-ACIDS
   FOOD QUALITY
   FRESH-WATER
   ZEBRA MUSSELS
   DAPHNIA
Кл.слова (ненормированные):
primary and secondary production -- carbon -- nitrogen -- phosphorus -- phyto- -- and zooplankton -- fish -- eutrophic conditions -- efficiency of substance -- transfer -- mesocosm
Аннотация: The efficiency of the transfer of carbon, polyunsaturated fatty acids (PUFA), nitrogen, and phosphorus from phytoplankton to zooplankton determines the functioning of the entire ecosystem. However, this parameter depends on environmental conditions. Fish as a very important factor regulating planktonic communities very likely affect the efficiency of the transfer of basic elements and substances from phytoplankton to zooplankton. In experimental mesocosms filled with water from a eutrophic lake and containing phyto- and zooplankton, we investigated how fish affect both primary and secondary production and the efficiency of transfer of carbon, nitrogen, phosphorus, PUFA, and fatty acids (FAs) from phytoplankton to zooplankton. Two treatments (control and fish treatment) were repeated in three replicates. The transfer efficiency of substances from phytoplankton to zooplankton was measured as the ratio of secondary production to primary production expressed per L and per unit of biomass. The efficiency expressed per L characterizes the productivity of the water body, while the efficiency expressed per unit of biomass indicates the effectiveness of aquatic species to transfer biologically valuable substances from one trophic level to another. We found that phytoplankton-zooplankton-fish interface is determined not only by predator-prey relationships, but are also affected by the quality of both phytoplankton and zooplankton in terms of contents of phosphorus, nitrogen, PUFA, and FAs in their biomass. We showed that, in the presence of fish, the transfer efficiency of carbon, phosphorus, nitrogen, eicosapentaenoic acid (EPA), docosahexaenoic acid (DHA), and FAs per unit of biomass from phytoplankton to zooplankton was increased twofold, 12.4-fold, 2.5-fold, 12.4-fold, 7.4-fold, and tenfold, respectively, relative to the control. This facilitates sustainable functioning of the ecosystem under fish pressure. Such a mechanism prevents zooplankton over-exploitation by fish and enlarges the food chain.

WOS
Держатели документа:
Russian Acad Sci, Severtsov Inst Ecol & Evolut, Moscow 119071, Russia.
Russian Acad Sci, Papanin Inst Biol Inland Waters, Borok 152742, Russia.
Russian Acad Sci, Siberian Branch, Krasnoyarsk Sci Ctr, Fed Res Ctr,Inst Biophys, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, Russia 660041, Russia.
Natl Acad Sci Belarus, Sci & Pract Ctr Bioresources, Minsk 220072, BELARUS.
Univ Bialystok, Inst Biol, Dept Hydrobiol, PL-15245 Bialystok, Poland.

Доп.точки доступа:
Feniova, I. Yu; Sakharova, E. G.; Gladyshev, M., I; Sushchik, N. N.; Gorelysheva, Z., I; Karpowicz, M.; National Science Center of PolandNational Science Centre, Poland [UMO-506 2016/21/B/NZ8/00434]; Russian Foundation for Basic ResearchRussian Foundation for Basic Research (RFBR) [18-54-00002 Bel_a]; Belarusian Republican Foundation for Basic Research (BRFFR) [B18R-004]; Russian Science FoundationRussian Science Foundation (RSF) [16-14-10323]; [AAAA-A18-118012690096-1]

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18.

Effects of Macrobiota on the Transfer Efficiency of Essential Elements and Fatty Acids From Phytoplankton to Zooplankton Under Eutrophic Conditions / I. Y. Feniova, M. Karpowicz, M. I. Gladyshev [et al.] // Front. Environ. Sci. - 2021. - Vol. 9. - Ст. 739014, DOI 10.3389/fenvs.2021.739014. - Cited References:76. - This experiment was performed with support from the Polish National Science Centre (2016/21/B/NZ8/00434). The statistical analysis and its interpretation was performed with support from the Russian Science Foundation (Grant No. 21-14-00123). Biochemical analyses were performed with support 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 preparation of the manuscript by Feniova I. was supported by the Polish National Agency for Academic Exchange (Agreement No. PPN/ULM/2020/1/00258/U/DRAFT/00001). . - ISSN 2296-665X

РУБ Environmental Sciences
Рубрики:
FRESH-WATER ZOOPLANKTON
DAPHNIA-LONGISPINA
ZEBRA MUSSELS
Кл.слова (ненормированные):
fish -- zebra mussels -- nitrogen -- phosphorus -- food quality
Аннотация: The transfer pathways of organic matter and elements from phytoplankton to zooplankton in freshwater ecosystems are important for understanding how aquatic ecosystems function. We conducted a mesocosm experiment to determine how fish and zebra mussels altered the transfer efficiencies of essential substances including carbon (C), polyunsaturated fatty acids (PUFAs), total fatty acids (FAs), phosphorus (P), and nitrogen (N) from phytoplankton to zooplankton. We assessed the transfer efficiencies of the essential substances from phytoplankton to zooplankton as the ratio of their zooplankton production (P) per unit of biomass (B) to that of phytoplankton to exclude grazing or predation effects. We hypothesized that zebra mussels and fish would affect the transfer of materials from phytoplankton to zooplankton by altering the contents of essential elements and FAs in phytoplankton and zooplankton communities and/or due to shifts in the planktonic community structure mediated by grazing and/or predation. Fish increased the transfer efficiencies of eicosapentaenoic acid 20:5 omega-3 (EPA), docosahexaenoic acid 22:6 omega-3 (DHA), and P relative to the control. We speculated that fish weakened the control of zooplankton over algal assemblage by selectively feeding on larger cladocerans such as Daphnia. Therefore, fish can increase the relative proportion of high-quality food for zooplankton, improving food conditions for the available zooplankton. In contrast, zebra mussels reduced the transfer efficiencies of EPA and DHA relative to the control treatment likely due to competition with zooplankton for PUFA-rich food particles. However, zebra mussels did not have any impact on the transfer efficiencies of C, total FAs, N, and P. EPA, DHA, and P were transferred more efficiently than C from phytoplankton to zooplankton, while total FAs, which are commonly used as an energetic source, were transferred as efficiently as C. The enrichment of consumers with the most important substances relative to their basal food sources creates the potential for the successful transport of these substances across aquatic trophic webs.

WOS
Держатели документа:
Russian Acad Sci, Inst Ecol & Evolut, Moscow, Russia.
Univ Bialystok, Fac Biol, Dept HydroBiol, Bialystok, Poland.
Russian Acad Sci, Inst Biophys Fed Res Ctr, Krasnoyarsk Sci Ctr, Siberian Branch, Krasnoyarsk, Russia.
Siberian Fed Univ, Chair Aquat & Terr Ecosyst, Krasnoyarsk, Russia.
Russian Acad Sci, Papanin Inst Biol Inland Waters, Borok, Russia.
Oklahoma State Univ, Dept Integrat Biol, Stillwater, OK 74078 USA.

Доп.точки доступа:
Feniova, Irina Yu; Karpowicz, Maciej; Gladyshev, Michail I.; Sushchik, Nadezhda N.; Petrosyan, Varos G.; Sakharova, Ekaterina G.; Dzialowski, Andrew R.; Polish National Science Centre [2016/21/B/NZ8/00434]; Russian Science FoundationRussian Science Foundation (RSF) [21-14-00123]; Federal Tasks for Institute of Biophysics SB RAS [51.1.1]; Federal Tasks for Siberian Federal University [FSRG-2020-0019]; Polish National Agency for Academic ExchangePolish National Agency for Academic Exchange (NAWA) [PPN/ULM/2020/1/00258/U/DRAFT/00001]

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19.

Effects of Dreissena polymorpha on the transfer efficiency of carbon, fatty acids, nitrogen, and phosphorus from phytoplankton to zooplankton / E. G. Sakharova, M. Karpowicz, M. I. Gladyshev [и др.] // Zhurnal Obshchei Biol. - 2021. - Vol. 82, Is. 3. - С. 188-200, DOI 10.31857/S0044459621030052. - Cited References:72 . - ISSN 0044-4596

РУБ Biology
Рубрики:
ZEBRA MUSSELS
   FRESH-WATER
   MICROCYSTIS-AERUGINOSA
   DAPHNIA-LONGISPINA
Аннотация: The efficiency of the transfer of physiologically valuable substances including polyunsaturated fatty acids (PUFA), nitrogen, and phosphorus from phytoplankton to zooplankton is extremely important for the functioning of the whole food web. The bivalve mollusk Dreissena polymorpha has a great impact on planktonic communities. However, its effects on the efficiency of transfer of physiologically valuable substances from phytoplankton to zooplankton have not been assessed so far. The goal of our study was to assess the effect of zebra mussels on the transfer efficiency of carbon, fatty acids including PUFA, nitrogen, and phosphorus from phytoplankton to zooplankton under mesotrophic conditions. In the experimental mesocosms filled with water from a mesotrophic lake containing phyto- and zooplankton, we manipulated the presence/absence of zebra mussels. The experiments showed that zebra mussels decreased the efficiency of the transfer of carbon, PUFA, nitrogen, and phosphorus from phytoplankton to zooplankton, thus reducing the quality of zooplankton as a food resource for higher trophic levels. However, zooplankton revealed the ability to increase the content of physiologically valuable substances in their tissues relative to their contents in the diet. We believe that the mechanism of accumulation of physiologically valuable substances by zooplankton enables to at least partially resist the negative influence of zebra mussels on the quality of zooplankton as a food resource.

WOS
Держатели документа:
RAS, Papanin Inst Biol Inland Waters, Pos Borok 152742, Yaroslavl Regio, Russia.
Univ Bialystok, Inst Biol, Dept Hydrobiol, Ul Ciolkowskiego 1J, PL-15245 Bialystok, Poland.
SB RAS, Krasnoyarsk Sci Ctr, Fed Res Ctr, Inst Biophys, Akad Gorodok 50, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, Av Svobodny 79, Krasnoyarsk 660041, Russia.
Natl Acad Sci Belarus, Sci & Pract Ctr Bioresources, St Akad Skaya 27, Minsk 220072, BELARUS.
RAS, Inst Ecol & Evolut, Leninsky Prosp 33, Moscow 119071, Russia.

Доп.точки доступа:
Sakharova, E. G.; Karpowicz, M.; Gladyshev, M., I; Sushchik, N. N.; Gorelysheva, Z., I; Feniova, I. Yu

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20.

Winter atmospheric nutrient and pollutant deposition on Western Sayan Mountain lakes (Siberia) / D. Diaz-De-Quijano, A. Vladimirovich Ageev, E. Anatolevna Ivanova, O. Valerevna Anishchenko // Biogeosciences. - 2021. - Vol. 18, Is. 5. - P1601-1618, DOI 10.5194/bg-18-1601-2021 . - ISSN 1726-4170
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.

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Держатели документа:
Siberian Federal University, 79, Svobondyi prospekt, Krasnoyarsk, Krasnoyarsk Krai, 660041, Russian Federation
Institute of Biophysics, Siberian Branch Russian Academy of Sciences, 50/50, Akademgorodok, Krasnoyarsk, Krasnoyarsk Krai, 660036, Russian Federation

Доп.точки доступа:
Diaz-De-Quijano, D.; Vladimirovich Ageev, A.; Anatolevna Ivanova, E.; Valerevna Anishchenko, O.

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