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Modelling the effect of planktivorous fish removal in a reservoir on the biomass of cyanobacteria / I. G. Prokopkin, V. G. Gubanov, M. I. Gladyshev // Ecological Modelling. - 2006. - Vol. 190, Is. 3-4. - P419-431, DOI 10.1016/j.ecolmodel.2005.05.011 . - ISSN 0304-3800
Кл.слова (ненормированные):
Biomanipulation -- Cyanobacteria -- Ecological mathematical model -- Viable gut passage -- Bacteria -- Biodiversity -- Biomass -- Ecosystems -- Rivers -- Cyanobacteria -- Fishes -- Viable gut passage -- Ecology -- algal bloom -- community dynamics -- modeling -- planktivore -- removal experiment -- reservoir -- Bugach Reservoir -- Eastern Hemisphere -- Eurasia -- Krasnoyarsk [Russian Federation] -- Russian Federation -- World -- Anabaena -- Carassius auratus -- Carassius carassius -- Cyanobacteria -- Cyprinus carpio -- Daphnia -- Microcystis
Аннотация: In 2002, a "top-down" biomanipulation (reduction of biomass of planktivorous fish Carassius auratus) had been successfully carried out in a small reservoir of the river Bugach (Krasnoyarsk, Russia), after which the cyanobacterial blooming ceased. However, the reservoir ecosystem was absolutely free of Daphnia - the main link of trophic cascade. As supposed, the reduction of blooming was the result of suppression of a direct stimulation effect of planktivorous fish on cyanobacteria, revealed earlier in laboratory experiments. The question arose as to whether the effect of stimulation of cyanobacteria revealed in laboratory may lead to the changes in biomass of cyanobacteria in the reservoir, observed after the biomanipulation. To test this supposition, a mathematical model describing growth of cyanobacteria in the reservoir was developed. The modelling results and field data on biomass of cyanobacteria in summer closely coincided. Modelling calculations showed that direct influence of planktivorous fish could cause the second summer peak of water blooming by Microcystis. On the contrary, removal of crucian carp from the reservoir will not affect the level of water blooming caused by cyanobacteria Anabaena, as this species' growth is not stimulated by fish. В© 2005 Elsevier B.V. All rights reserved.

Scopus
Держатели документа:
Institute of Biophysics, Akademgorodok, 660036 Krasnoyarsk, Russian Federation : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Prokopkin, I.G.; Gubanov, V.G.; Gladyshev, M.I.

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Phenomenological mathematical model of biomanipulation influence (removal of planktivorous fish) on biomass of cyanobacteria in a small pond / I. G. Prokopkin, V. G. Gubanov, M. I. Gladyshev // Doklady Akademii Nauk. - 2003. - Vol. 392, Is. 6. - С. 847-849 . - ISSN 0869-5652
Кл.слова (ненормированные):
Biomass -- Ecosystems -- Growth kinetics -- Mathematical models -- Carassius auratus -- Cyanobacteria -- Plankton -- Removal of fish -- Algae
Аннотация: Mathematical model is constructed for studying the effect of photosynthesis stimulation in cyanobacteria after their passing through crucian intestines on cyanobacteria biomass changes after bio-manipulations. At good agreement of model and natural data an explanation is found for observed differences in the influence of planktivorous fish on the two species of cyanobacteria. The calculations showed that one of the reasons for appearance of the peak of water blooming with a species Microcystic may be direct metabolic influence of planktivorous fish. Elimination of crucian from the pond will not affect the level of water blooming with Anabaena species.

Scopus
Держатели документа:
Inst. Biofiziki SO RAN, Krasnoyarsk, Russian Federation : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Prokopkin, I.G.; Gubanov, V.G.; Gladyshev, M.I.

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System analysis of links interactions and development of ecosystems of different types / N. S. Pechurkin, I. M. Shirobokova // Advances in Space Research. - 2003. - Vol. 31, Is. 7. - P1667-1674, DOI 10.1016/S0273-1177(03)80013-3 . - ISSN 0273-1177
Кл.слова (ненормированные):
Free energy -- Heuristic methods -- Hierarchical systems -- Mathematical models -- Photosynthesis -- Systems analysis -- Biological interactions -- Ecosystems -- anthropogenic effect -- ecosystem function -- systems analysis -- article -- biological model -- biomass -- ecology -- ecosystem -- energy transfer -- environmental protection -- food chain -- methodology -- microclimate -- plankton -- population dynamics -- statistics -- Biomass -- Conservation of Natural Resources -- Ecological Systems, Closed -- Ecology -- Ecosystem -- Energy Transfer -- Food Chain -- Models, Biological -- Plankton -- Population Dynamics
Аннотация: The anthropogenic impact on the Earth's ecosystems are leading to dramatic changes in ecosystem functioning and even to destruction of them. System analysis and the use of heuristic modeling can be an effective means to determine the main biological interactions and key factors that are of high importance for understanding the development of ecosystems. Cycling of limiting substances, induced by the external free energy flux, and trophic links interaction is the basis of the mathematical modeling studies presented in this paper. Mathematical models describe the dynamics of simplified ecosystems having different characteristics: 1) different degrees of biotic turnover closure (from open to completely closed); 2) different numbers of trophic links (including both "topdown", "bottom-up" regulation types); 3) different intensities of input - output flows of the limiting nutrient and its total amount in the system. Adaptive values of the changes of lower hierarchical levels (populational, trophic chain level) are to be estimated by integrity indices for total system functioning (e.g. NPP, total photosynthesis). The approach developed can be used for evaluating the contributions of lower hierarchical levels to the functioning of the higher hierarchical levels of the system. This approach may have value for determining biomanipulation management and their assessment. В© 2003 COSPAR. Published by Elsevier Science Ltd. All rights reserved.

Scopus
Держатели документа:
Institute of Biophysics, SB RAS, Krasnoyarsk 660036, Russian Federation : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Pechurkin, N.S.; Shirobokova, I.M.

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Growth and potential photosynthesis of cyanobacteria are stimulated by viable gut passage in crucian carp [Text] / V. I. Kolmakov, M. I. Gladyshev // Aquat. Ecol. - 2003. - Vol. 37, Is. 3. - P. 237-242, DOI 10.1023/A:1025801326088. - Cited References: 28 . - ISSN 1386-2588

РУБ Ecology + Limnology + Marine & Freshwater Biology
Рубрики:
FISH
   LAKE
   BIOMANIPULATION
   FOOD
   ROACH
   RESTORATION
   COMMUNITIES
   ZOOPLANKTON
   MECHANISMS
   ALGAE
Кл.слова (ненормированные):
Carassius auratus -- cyanobacteria -- gut passage
Аннотация: Growth and potential photosynthetic activity of phytoplankton passed through intestine of crucian carp (Carassius auratus) from a small Siberian reservoir were compared with those of phytoplankton taken the directly from the reservoir. The dominant phytoplankton species in the reservoir, Microcystis aeruginosa, showed a significant increase of growth after the passage. Subdominant Planktothrix agardhii also showed an increase in growth rate, while subdominants Anabaena flos-aquae and Aphanizomenon flos-aquae were not stimulated by the gut passage.

WOS
Держатели документа:
Krasnoyarsk State Univ, Krasnoyarsk 660042, Russia
Russian Acad Sci, Siberian Branch, Inst Biophys, Krasnoyarsk 660036, Russia
ИБФ СО РАН : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Kolmakov, V.I.; Gladyshev, M.I.

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System analysis of links interactions and development of ecosystems of different types [Text] / N. S. Pechurkin, I. M. Shirobokova ; 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. 1667-1674, DOI 10.1016/S0273-1177(03)00106-6. - Cited References: 12 . - ISBN 0273-1177

РУБ Engineering, Aerospace + Astronomy & Astrophysics + Ecology + Geosciences, Multidisciplinary + Meteorology & Atmospheric Sciences

Аннотация: The anthropogenic impact on the Earth's ecosysterns are leading to dramatic changes in ecosystem functioning and even to destruction of them. System analysis and the use of heuristic modeling can be an effective means to determine the main biological interactions and key factors that are of high importance for understanding the development of ecosysterns. Cycling of limiting substances, induced by the external free energy flux, and trophic links interaction is the basis of the mathematical modeling studies presented in this paper. Mathematical models describe the dynamics of simplified ecosysterns having different characteristics:1) different degrees of biotic turnover closure (from open to completely closed); 2) different numbers of trophic links (including both "top-down", "bottom-up" regulation types); 3) different intensities of input - output flows of the limiting nutrient and its total amount in the system. Adaptive values of the changes of lower hierarchical levels (populational, trophic chain level) are to be estimated by integrity indices for total system functioning (e.g. NPP, total photosynthesis). The approach developed can be used for evaluating the contributions of lower hierarchical levels to the functioning of the higher hierarchical levels of the system. This approach may have value for determining biomanipulation management and their assessment. (C) 2003 COSPAR. Published by Elsevier Science Ltd. All rights reserved.

WOS
Держатели документа:
SB RAS, Inst Biophys, Krasnoyarsk 660036, Russia
ИБФ СО РАН : 660036, Красноярск, Академгородок, д. 50, стр. 50

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

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Oil Spills in Fresh Waters and State of Ecosystem of Lake Pyasino before the Incidental Spill of 2020 / M. I. Gladyshev // Contemp. Probl. Ecol. - 2021. - Vol. 14, Is. 4. - P313-322, DOI 10.1134/S1995425521040041. - Cited References:50. - This work was supported by Federal Tasks no. 223-EP2020/07 with the Siberian Branch of the Russian Academy of Sciences and by State Assignment as a part of Basic Research of the Russian Federation, topic no. 51.1.1. . - ISSN 1995-4255. - ISSN 1995-4263

РУБ Ecology
Рубрики:
POLYUNSATURATED FATTY-ACIDS
   PECHORA BASIN
   RIVER
   ZOOPLANKTON
Кл.слова (ненормированные):
petroleum pollution -- plankton -- benthos -- ichthyofauna -- water quality -- Arctic lakes
Аннотация: This article presents the history of large oil spills in freshwaters, considering the processes of physicochemical and biological degradation of oil. It discusses the toxicity of oil for hydrobionts and effects of oil pollution on communities of plankton, benthos, and ichthyofauna, as well as challenges in mitigating the environmental impact of oil spills. The discussion is concerned with the state of the ecosystem in Lake Pyasino before the incidental spill of 2020, specifically, hydrochemical indicators; species composition; and abundance and biomass of plankton, benthos, and fish. Candidate technologies for restoring the Lake Pyasino ecosystem are reviewed, including "bottom-up" biomanipulation.

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

Доп.точки доступа:
Gladyshev, M. I.; Siberian Branch of the Russian Academy of SciencesRussian Academy of Sciences [223-EP2020/07]; Basic Research of the Russian Federation [51.1.1]

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