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Impact of weather variability on spatial and seasonal dynamics of dissolved and suspended nutrients in water column of meromictic Lake Shira [Text] / E. S. Zadereev [et al.] // Contemp. Probl. Ecol. - 2014. - Vol. 7, Is. 4. - P384-396, DOI 10.1134/S199542551404012X. - Cited References: 25. - This work was performed with the partial support of the Siberian Branch of the Russian Academy of Sciences (SB RAS) Integration Project no. 56 and grant 13-05-00853 of the Russian Foundation for Basic Research. The work was performed using resources of the field station of the SB RAS Institute of Biophysics (IBP) at Shira Lake. We thank our colleagues from the SB RAS IBP Laboratory of Biophysics of Ecosystems for their friendly participation in joint field works at Shira Lake; Academician A. G. Degermendzhi for his support of research at the saline lakes of Khakassia; the research workers of the SB RAS IBP Analytical Laboratory for the analyses of water and seston samples; and we especially thank Dr. Denis Rogozin for arrangements and assistance in winter field trips to the lakes, as well as to an anonymous reviewer for his valuable comments. . - ISSN 1995-4255. - ISSN 1995-4263

РУБ Ecology
Рубрики:
CLIMATE-CHANGE
   STRATIFICATION
   PHOSPHORUS
   RUSSIA
   PHYTOPLANKTON
   SESTON
Кл.слова (ненормированные):
meromictic lake -- weather -- thermal stratification -- seston -- nutrients -- stoichiometric ratios
Аннотация: Depths of thermocline and the redox zone, concentrations of dissolved and suspended carbon, and nitrogen and phosphorus in seston were measured in the pelagial of the saline meromictic Lake Shira (southern Siberia) in different years (2007-2011); the relationship of the values for those parameters with air-temperature variations was assessed. Positive correlations between both air temperatures in the previous year and the depth of the redox zone in winter and air temperature in April and the thermocline depth in summer were revealed. In the mixolimnion, the ratio of total nitrogen to total phosphorus almost always exceeded the Redfield ratio (16: 1); seston deficiency both in nitrogen and phosphorus was monitored in different seasons and at various depths. The amount of seston in the mixolimnion in summer almost doubled the amount of seston in winter and was directly related with the depth of the thermocline. In the monimolimnion, seston was rich in nitrogen and phosphorus. The amount of seston in the monimolimnion varied in different years and depended both on the air temperature in the previous year and the size of the zone.

WOS
Держатели документа:
[Zadereev, E. S.
Tolomeev, A. P.
Drobotov, A. V.
Kolmakova, A. A.] Russian Acad Sci, Siberian Branch, Inst Biophys, Krasnoyarsk 660036, Russia
[Zadereev, E. S.] Siberian Fed Univ, Krasnoyarsk 660041, Russia
ИБФ СО РАН : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Zadereev, E.S.; Tolomeev, A.P.; Drobotov, A.V.; Kolmakova, A.A.; Siberian Branch of the Russian Academy of Sciences (SB RAS) [56]; Russian Foundation for Basic Research [13-05-00853]

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Contribution of different groups of autotrophs to the primary production of the mountain Lake Oiskoe [Text] / E. A. Ivanova [et al.] // Contemp. Probl. Ecol. - 2014. - Vol. 7, Is. 4. - P397-409, DOI 10.1134/S1995425514040040. - Cited References: 49. - This work was supported by the Federal Target Program "Scientific and Scientific-Pedagogical Personnel for an Innovative Russia," state contract no. 16.740.11.0484, and the project of the Ministry of Education and Science of the Russian Federation "Ecological and Biochemical Laws of Matter and Energy Transfer in Food Webs of Aquatic Ecosystems." . - ISSN 1995-4255. - ISSN 1995-4263

РУБ Ecology
Рубрики:
DCMU-FLUORESCENCE METHOD
   PHYTOPLANKTON
   CHLOROPHYLL
   PERIPHYTON
   RANGE
Кл.слова (ненормированные):
primary productivity -- phytoplankton -- phytoperiphyton -- macrophytes -- fluorescence -- chlorophyll -- Lake Oiskoe
Аннотация: Productivity characteristics of phytoplankton, phytoperiphyton, and five species of macrophytes in the mountain oligotrophic Lake Oiskoe (Ergaky Mountain Range, West Sayan) have been studied. High primary productivity has been noted for phytoperiphyton and macrophyte communities. Photosynthetic parameters of the macrophyte leaves have been compared using a PAM fluorimeter.

WOS
Держатели документа:
[Ivanova, E. A.
Anishchenko, O. V.
Glushchenko, L. A.
Gaevsky, N. A.
Kolmakov, V. I.] Siberian Fed Univ, Krasnoyarsk 660041, Russia
[Ivanova, E. A.
Anishchenko, O. V.
Kolmakov, V. I.] Russian Acad Sci, Siberian Branch, Inst Biophys, Krasnoyarsk 660036, Russia
ИБФ СО РАН : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Ivanova, E.A.; Anishchenko, O.V.; Glushchenko, L.A.; Gaevsky, N.A.; Kolmakov, V.I.; Federal Target Program "Scientific and Scientific-Pedagogical Personnel for an Innovative Russia" [16.740.11.0484]; Ministry of Education and Science of the Russian Federation

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Evaluation of the effect of light intensity on the measurement of the photosynthetic rate in plankton microalgae by the chlorophyll fluorescence method [Text] / N. A. Gaevskii [et al.] // Russ. J. Plant Physiol. - 2000. - Vol. 47, Is. 6. - P. 820-825, DOI 10.1023/A:1026671531500. - Cited References: 21 . - ISSN 1021-4437

РУБ Plant Sciences
Рубрики:
QUANTUM YIELDS
   PHYTOPLANKTON
   CHLOROPLASTS
   ALGAE
Кл.слова (ненормированные):
fluorescence -- chlorophyll -- microalgae -- photosynthetic rate -- photosynthetic activity
Аннотация: The use of relative variable fluorescence (RVF) of chlorophyll, as measured in the presence of Diuron, an inhibitor of electron transfer, for the estimation of the photosynthetic activity of plankton microalgae was analyzed under a wide range of light intensities in the PAR region. Oxygen evolution rates (estimated by the method of light and dark bottles and the amperometric method), RVF, and chlorophyll a concentration were measured in parallel in natural algal cenoses and microecosystems. When the previously used regression equation, in the form A = b(DeltaF/F-d)CchlI, where A is O-2 evolution rate (g/(m(3) h), DeltaF/F-d is RVF (relative units), C-chl is chlorophyll a concentration (mg/m(3)), and I is light intensity (W/m(2)), was verified in the PAR region, we observed a nonlinear dependence of the correction coefficient b on I, which can be described by the formula b = 6.227 x 10(3)rootI. This result agrees with the hypothesis that chlorophyll a fluorescence quenching comprises photochemical (qQ) and energy (qE) components. On the basis of the energy model, we determined the upper limit b(max) = 0.003 for light intensity range I < 4.4 W/m(2) and the lower limit b(min) = 0.0003 for I = 400 W/m(2).

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

Доп.точки доступа:
Gaevskii, N.A.; Kolmakov, V.I.; Popel'nitskii, V.A.; Gold, V.M.; Dubovskaya, O.P.

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Studying of algae food composition of Daphnia longispina during bluegreen bloom of eutrophic pond [Текст] / M. I. Gladyshev [и др.] // Dokl. Akad. Nauk. - 2000. - Vol. 371, Is. 4. - P. 556-558. - Cited References: 11 . - ISSN 0869-5652

РУБ Multidisciplinary Sciences
Рубрики:
MICROCYSTIS-AERUGINOSA
   CLOSED CULTIVATORS
   PHYTOPLANKTON
   ZOOPLANKTON
   MICROALGAE

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

Доп.точки доступа:
Gladyshev, M.I.; Kolmakov, V.I.; Dubovskaya, O.P.; Ivanova, E.A.

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