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Study of non-consumptive mortality of Crustacean zooplankton in a Siberian reservoir using staining for live/dead sorting and sediment traps / O. P. Dubovskaya [et al.] // Hydrobiologia. - 2003. - Vol. 504. - P223-227, DOI 10.1023/B:HYDR.0000008522.88010.45 . - ISSN 0018-8158
Кл.слова (ненормированные):
Cyclops vicinus -- Daphnia -- Live/dead sorting -- Non-consumptive mortality -- Sedimentation -- Reservoirs (water) -- Sampling -- Sediment traps -- Non-consumptive mortality -- Population dynamics -- Biodiversity -- mortality -- population dynamics -- reservoir -- sediment trap -- sedimentation -- zooplankton -- Cladocera -- Copepoda -- Crustacea -- Cyclopia -- Cyclops -- Cyclops vicinus -- Daphnia
Аннотация: We studied non-consumptive (non-predatory) mortality of Daphnia and Cyclops vicinus during four sampling seasons. Mortality estimations were based on live/dead sorting using special staining and measurements of sedimentation rates for dead individuals, depended on wind speed. Original equations were used for calculations. The estimated specific non-consumptive mortality never had biologically senseless negative values, which were often obtained on the basis of the other ways of mortality estimations, and was in a good agreement with other components of population dynamics. As found, the non-consumptive mortality was the important, often the determinant component of the zooplankton population dynamics.

Scopus
Держатели документа:
Institute of Biophysics, Siberian Branch, Russian Academy of Sciences, Akademgorodok, Krasnoyarsk, 660036, Russian Federation
Krasnoyarsk State University, Svobodny av., 79, Krasnoyarsk, 660042, Russian Federation : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Dubovskaya, O.P.; Gladyshev, M.I.; Gubanov, V.G.; Makhutova, O.N.

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Evaluation of non-predatory mortality of two Daphnia species in a Siberian reservoir / M. I. Gladyshev [et al.] // Journal of Plankton Research. - 2003. - Vol. 25, Is. 8. - P999-1003, DOI 10.1093/plankt/25.8.999 . - ISSN 0142-7873
Кл.слова (ненормированные):
estimation method -- mortality -- zooplankton -- Russian Federation -- Daphnia -- Daphnia cucullata -- Daphnia longispina
Аннотация: A new method of estimating non-predatory mortality of Zooplankton based on live/dead sorting and sediment trap measurement is described. Preliminary results on Daphnia cucullata and Daphnia longispina are given. Estimations of average non-predatory mortality demonstrated a significant contribution of this kind of mortality to total mortality.

Scopus
Держатели документа:
Institute of Biophysics, Siberian Br. of Russ. Acad. of Sci., Akademgorodok, Krasnoyarsk, 660036, Russian Federation
Krasnoyarsk State University, Svobodny Av, 79, Krasnoyarsk, 660042, Russian Federation : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Gladyshev, M.I.; Dubovskaya, O.P.; Gubanov, V.G.; Makhutova, O.N.

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Bioluminescent signal system: bioluminescence immunoassay of pathogenic organisms [Text] / L. . Frank [et al.] // Luminescence. - 2007. - Vol. 22, Is. 3. - P215-220, DOI 10.1002/bio.952. - Cited References: 14 . - ISSN 1522-7235

РУБ Biochemistry & Molecular Biology
Рубрики:
AEQUORIN
   AGENTS
   OBELIN
   ASSAYS
   LABEL
Кл.слова (ненормированные):
obelin -- bioluminescence immunoassay -- infective agents
Аннотация: The Ca2+-regulated photoprotein obelin has been examined as a label for bioluminescence immunoassay of infective agents. The hepatitis B virus (HbsAg) and the bacteria Escherichia coli and Shigella sonnei lipopolysaccharide (LPS) were chosen as model antigens. Chemically synthesized obelin-corresponding antibody conjugates were used in a solid-phase microplate immunoassay. The sensitivities achieved by the assay were 0.25 ng/mL for S. sonnei LPS and 0.375 ng/mL for HbsAg. A novel, filter-based immunoassay to determine bacterial admixtures in the environment was proposed. The NanoCeram filters were effectively applied to 'trap' and pre-concentrate pathogens from samples under study for the purposes of further detection and measurement of the absorbed material by bioluminescence immunoassay. Copyright (C) 2007 John Wiley & Sons, Ltd.

Держатели документа:
Russian Acad Sci, Inst Biophys, Siberian Branch, Krasnoyarsk 660036, Russia
Krasnoyarsk State Univ, Krasnoyarsk 660041, Russia
ИБФ СО РАН : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Frank, L...; Markova, S...; Remmel, N...; Vysotski, E...; Gitelson, I...

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Physical-chemical treatment of wastes: A way to close turnover of elements in LSS [Text] / Y. A. Kudenko, I. V. Gribovskaya, I. G. Zolotukhin // Acta Astronaut. - 2000. - Vol. 46, Is. 9. - P. 585-589, DOI 10.1016/S0094-5765(00)00007-2. - Cited References: 14 . - ISSN 0094-5765

РУБ Engineering, Aerospace

Аннотация: Man-plants-physical-chemical unit system designed For space stations or terrestrial ecohabitats to close steady-state mineral, water and gas exchange is proposed. The physical-chemical unit is to mineralize all inedible plant wastes and physiological human wastes (feces, urine, gray water) by electromagnetically activated hydrogen peroxide in an oxidation reactor. The final product is a mineralized solution containing all elements balanced for plants' requirements. The solution has been successfully used in experiments to grow wheat, beans and radish. The solution was reusable: the evaporated moisture was replenished by the phytotron condensate. Sodium salination of plants was precluded by evaporating reactor-mineralized urine to sodium saturation concentration to crystallize out NaCl which can be used as food for the crew. The remaining mineralized product was brought back for nutrition of plants. The gas composition of the reactor comprises O(2), N(2), CO(2), NH(3), H(2). At the reactor's output hydrogen and oxygen were catalyzed into water, NH(3) was converted in a water trap into NH(4) and used for nutrition of plants. A special accessory at the reactor's output may produce hydrogen peroxide from intrasystem water and gas which makes possible to close gas loops between LSS components. (C) 2000 Elsevier Science ttd. All rights reserved.

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

Доп.точки доступа:
Kudenko, Y.A.; Gribovskaya, I.V.; Zolotukhin, I.G.

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Evaluation of non-predatory mortality of two Daphnia species in a Siberian reservoir [Text] / M. I. Gladyshev [et al.] // J. Plankton Res. - 2003. - Vol. 25, Is. 8. - P. 999-1003, DOI 10.1093/plankt/25.8.999. - Cited References: 24 . - ISSN 0142-7873

РУБ Marine & Freshwater Biology + Oceanography
Рубрики:
SEASONAL DYNAMICS
   MIDSUMMER DECLINE
   ZOOPLANKTON
   POND
   POPULATION
   PREDATION
   DETRITUS
   FISH
   LAKE
   TRAP
Аннотация: A new method of estimating non-predatory mortality of zooplankton based on live/dead sorting and sediment trap measurement is described. Preliminary results on Daphnia cucullata and Daphnia longispina are given. Estimations of average non-predatory mortality demonstrated a significant contribution of this kind of mortality to total mortality.

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

Доп.точки доступа:
Gladyshev, M.I.; Dubovskaya, O.P.; Gubanov, V.G.; Makhutova, O.N.

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Estimating In Situ Zooplankton Non-Predation Mortality in an Oligo-Mesotrophic Lake from Sediment Trap Data: Caveats and Reality Check [Text] / O. P. Dubovskaya [et al.] // PLoS One. - 2015. - Vol. 10, Is. 7. - Ст. e0131431, DOI 10.1371/journal.pone.0131431. - Cited References:60. - This work was supported by joint projects of Russian Foundation for Basic Research and Belarusian Republican Foundation for Fundamental Research (No 14-05-90005-Bel-a to O.P.D and A.P.T., and No B14R-066 to Zh.B.). K.W.T. was supported by a Humboldt Fellowship for Experienced Researchers (Germany), M.I.G. was supported by Russian Federal Tasks of Fundamental Research (project No. 51.1.1), H.P.G. and G.K. were supported by grants from the German Science Foundation (GR 1540/20-1 and KI-853/8-1). . - ISSN 1932-6203

РУБ Multidisciplinary Sciences
Рубрики:
FRESH-WATER
NONCONSUMPTIVE MORTALITY
NONPREDATORY MORTALITY
Аннотация: Background Mortality is a main driver in zooplankton population biology but it is poorly constrained in models that describe zooplankton population dynamics, food web interactions and nutrient dynamics. Mortality due to non-predation factors is often ignored even though anecdotal evidence of non-predation mass mortality of zooplankton has been reported repeatedly. One way to estimate non-predation mortality rate is to measure the removal rate of carcasses, for which sinking is the primary removal mechanism especially in quiescent shallow water bodies. Objectives and Results We used sediment traps to quantify in situ carcass sinking velocity and non-predation mortality rate on eight consecutive days in 2013 for the cladoceran Bosmina longirostris in the oligo-mesotrophic Lake Stechlin; the outcomes were compared against estimates derived from in vitro carcass sinking velocity measurements and an empirical model correcting in vitro sinking velocity for turbulence resuspension and microbial decomposition of carcasses. Our results show that the latter two approaches produced unrealistically high mortality rates of 0.58-1.04 d(-1), whereas the sediment trap approach, when used properly, yielded a mortality rate estimate of 0.015 d(-1), which is more consistent with concurrent population abundance data and comparable to physiological death rate from the literature. Ecological implications Zooplankton carcasses may be exposed to water column microbes for days before entering the benthos; therefore, non-predation mortality affects not only zooplankton population dynamics but also microbial and benthic food webs. This would be particularly important for carbon and nitrogen cycles in systems where recurring mid-summer decline of zooplankton population due to non-predation mortality is observed.

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Scopus
Держатели документа:
Russian Acad Sci, Siberian Branch, Inst Biophys, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, Krasnoyarsk 660041, Russia.
Swansea Univ, Dept Biosci, Swansea SA2 8PP, W Glam, Wales.
Swansea Univ, Ctr Sustainable Aquat Res, Swansea SA2 8PP, W Glam, Wales.
MU, Leibniz Inst Freshwater Ecol & Inland Fisheries, Dept Ecohydrol, D-12587 Berlin, Germany.
Natl Acad Sci Belarus Bioresources, Sci & Pract Ctr, Minsk 220072, Byelarus.
Leibniz Inst Freshwater Ecol & Inland Fisheries, Dept Expt Limnol, D-16775 Neuglobsow, Germany.
Univ Potsdam, Inst Biochem & Biol, D-14469 Potsdam, Germany.

Доп.точки доступа:
Dubovskaya, Olga P.; Tang, Kam W.; Gladyshev, Michail I.; Kirillin, Georgiy; Buseva, Zhanna; Kasprzak, Peter; Tolomeev, Aleksandr P.; Grossart, Hans-Peter; Russian Foundation for Basic Research; Belarusian Republican Foundation for Fundamental Research [14-05-90005-Bel-a, B14R-066]; Humboldt Fellowship for Experienced Researchers (Germany); Russian Federal Tasks of Fundamental Research [51.1.1]; German Science Foundation [GR 1540/20-1, KI-853/8-1]

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Effects of water column processes on the use of sediment traps to measure zooplankton non-predatory mortality: a mathematical and empirical assessment / O. P. Dubovskaya [et al.] // J. Plankton Res. - 2018. - Vol. 40, Is. 1. - P91-106, DOI 10.1093/plankt/fbx066. - Cited References:49. - This work was a part of the joint German-Russian Project "Mortality of Zooplankton in lake ecosystems and its potential contribution to carbon mineralization in pelagic zone" supported by the German Research Foundation (DFG no. GR-1540/29-1) and the Russian Foundation for Basic Research (RFBR no. 16-54-12048). The work also was partly supported by Russian Federal Tasks of Fundamental Research (project no. 51.1.1) and by grant (no. 9249.2016.5) from the RF President Council on Grants for leading RF scientific schools. . - ISSN 0142-7873. - ISSN 1464-3774

РУБ Marine & Freshwater Biology + Oceanography
Рубрики:
NONCONSUMPTIVE MORTALITY
CRUSTACEAN ZOOPLANKTON
VERTICAL-DISTRIBUTION
Кл.слова (ненормированные):
zooplankton -- Arctodiaptomus salinus -- non-predatory mortality -- sediment -- trap -- carcasses -- stratified lake
Аннотация: Zooplankton populations can at times suffer mass mortality due to non-predatory mortality (NPM) factors, and the resulting carcasses can be captured by sediment traps to estimate NPM rate. This approach assumes sinking to be the primary process in removing carcasses, but in reality, carcasses can also be removed by ingestion, turbulent mixing and microbial degradation in the water column. We present mathematical formulations to calculate NPM from sediment trap data by accounting for carcass removal by processes in addition to sinking, and demonstrate their application in a study in Lake Shira, Russia. Carcass abundance of the major calanoid copepod Arctodiaptomus salinus decreased with depth, indicating the effect of carcass removal from the water column. The estimated NPM values (0.0003-0.103 d(-1)) were comparable with previously reported physiological death rates. We further used independent data to partition carcass removal due to detritivory, turbulent mixing and microbial degradation. Estimated ingestion by the amphipod Gammarus lacustris could account for the disappearance of copepod carcasses above the traps. Wind-driven turbulence could also extend the carcass exposure time to microbial degradation. Collectively, these water column processes would facilitate the remineralization of carcasses in the water column, and diminish the carcass carbon flux to the benthos.

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Держатели документа:
Russian Acad Sci, Siberian Branch, Krasnoyarsk Sci Ctr, Inst Biophys,Fed Res Ctr,Dept Expt Hydroecol, 50-50 Akademgorodok, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, Inst Fundamental Biol & Biotechnol, 79 Svobodny Ave, Krasnoyarsk 660041, Russia.
Leibniz Inst Freshwater Ecol & Inland Fisherie, Dept Ecohydrol, Muggelseedamm 310, D-12587 Berlin, Germany.
Natl Acad Sci Belarus Bioresources, Pract Ctr, Dept Hydrobiol, 27 Acad Skaya St, Minsk 220072, Byelarus.
Swansea Univ, Dept Biosci, Singleton Pk, Swansea SA2 8PP, W Glam, Wales.

Доп.точки доступа:
Dubovskaya, Olga P.; Tolomeev, Aleksandr P.; Kirillin, Georgiy; Buseva, Zhanna; Tang, Kam W.; Gladyshev, Michail I.; German Research Foundation (DFG) [GR-1540/29-1]; Russian Foundation for Basic Research (RFBR) [16-54-12048]; Russian Federal Tasks of Fundamental Research [51.1.1]; RF President Council on Grants for leading RF scientific schools [9249.2016.5]

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A low-cost underwater particle tracking velocimetry system for measuring in situ particle flux and sedimentation rate in low-turbulence environments / S. Simoncelli [et al.] // Limnol. Oceanogr. Methods. - 2019, DOI 10.1002/lom3.10341 . - Article in press. - ISSN 1541-5856
Аннотация: We describe a low-cost three-dimensional underwater particle tracking velocimetry system to directly measure particle settling rate and flux in low-turbulence aquatic environments. The system consists of two waterproof cameras that acquire stereoscopic videos of sinking particles at 48 frames s?1 over a tunable sampling volume of about 45 ? 25 ? 24 cm. A dedicated software package has been developed to allow evaluation of particle velocities, concentration and flux, but also of morphometric parameters such as particle area, sinking angle, shape irregularity, and density. Our method offers several advantages over traditional approaches, like sediment trap or expensive in situ camera systems: (1) it does not require beforehand particle collection and handling; (2) it is not subjected to sediment trap biases from turbulence, horizontal advection, or presence of swimmers, that may alter particulate load and flux; (3) the camera system enables faster data processing and flux computation at higher spatial resolution; (4) apart from the particle settling rates, the particle size distribution, and morphology is determined. We tested the camera system in Lake Stechlin (Germany) in low turbulence and mean flow, and analyzed the morphological properties and settling rates of particles to determine their sinking behavior. The particle flux assessed from conventional sediment trap measurements agreed well with that determined by our system. By this, the low-cost approach demonstrated its reliability in low turbulence environments and a strong potential to provide new insights into particulate carbon transport in aquatic systems. Extension of the method to more turbulent and advective conditions is also discussed. © 2019 The Authors. Limnology and Oceanography: Methods published by Wiley Periodicals, Inc. on behalf of Association for the Sciences of Limnology and Oceanography.

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Держатели документа:
Leibniz-Institute of Freshwater Ecology and Inland Fisheries (IGB), Berlin, Germany
Institute of Biophysics, Siberian Branch of the Russian Academy of Sciences, Krasnoyarsk, Russian Federation
Potsdam University, Institute for Biochemistry and Biology, Potsdam, Germany

Доп.точки доступа:
Simoncelli, S.; Kirillin, G.; Tolomeev, A. P.; Grossart, H. -P.

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