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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Bogatov V. V., Sushchik N. N., Makhutova O. N., Kolmakova A. A., Gladyshev M. I.
Заглавие : Allochthonous and Autochthonous Food Sources for Zoobenthos in a Forest Stream
Место публикации : Russ. J. Ecol.: Pleiades journals, 2021. - Vol. 52, Is. 3. - С. 253-256. - ISSN 10674136 (ISSN), DOI 10.1134/S1067413621030048
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Bogatov V. V., Sushchik N. N., Makhutova O. N., Kolmakova A. A., Gladyshev, M., I
Заглавие : Allochthonous and Autochthonous Food Sources for Zoobenthos in a Forest Stream
Колич.характеристики :4 с
Коллективы : Basic Research Program of the Russian Federation; RF Ministry of Science and Higher Education [FWZS-2019-0020]; Siberian Federal University [FSRZ-2020-0006]
Место публикации : Russ. J. Ecol.: PLEIADES PUBLISHING INC, 2021. - Vol. 52, Is. 3. - С. 253-256. - ISSN 1067-4136, DOI 10.1134/S1067413621030048. - ISSN 1608-3334(eISSN)
Примечания : Cited References:16. - This study was supported under the Basic Research Program of the Russian Federation (theme no. 51.1.1) and State Assignments from the RF Ministry of Science and Higher Education to the Federal Scientific Center of the East Asia Terrestrial Biodiversity, Far Eastern Branch, Russian Academy of Sciences (no. FWZS-2019-0020) and Siberian Federal University (no. FSRZ-2020-0006).
Предметные рубрики: POLYUNSATURATED FATTY-ACIDS
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Ivanova E.A., Anishchenko O.V., Glushchenko L.A., Gaevsky N.A., Kolmakov V.I.
Заглавие : Contribution of different groups of autotrophs to the primary production of the mountain Lake Oiskoe
Колич.характеристики :13 с
Коллективы : 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
Место публикации : Contemp. Probl. Ecol.: MAIK NAUKA/INTERPERIODICA/SPRINGER, 2014. - Vol. 7, Is. 4. - С. 397-409. - ISSN 1995-4255, DOI 10.1134/S1995425514040040. - ISSN 1995-4263
Примечания : 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."
Предметные рубрики: DCMU-FLUORESCENCE METHOD
PHYTOPLANKTON
CHLOROPHYLL
PERIPHYTON
RANGE
Ключевые слова (''Своб.индексиров.''): 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.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Anishchenko O.V., Gladyshev M.I., Kravchuk E.S., Sushchik N.N., Gribovskaya I.V.
Заглавие : Distribution and migration of metals in trophic chains of the Yenisei ecosystem near Krasnoyarsk City
Место публикации : Water Resources. - 2009. - Vol. 36, Is. 5. - С. 594-603. - ISSN 00978078 (ISSN) , DOI 10.1134/S0097807809050121
Ключевые слова (''Своб.индексиров.''): aquatic organisms--atomic absorption--bulk concentration--cd concentrations--cr concentration--ecosystem components--emission spectral analysis--flame photometry--fly larvae--international standards--periphytons--primary producers--waterbodies--aquaculture--cadmium--chromium--ecology--photometry--spectroscopy--spectrum analysis--spectrum analyzers--water absorption--water analysis--concentration (process)--aluminum--aquatic ecosystem--aquatic organism--cadmium--chromium--concentration (composition)--copper--pollutant transport--river pollution--trophic environment--krasnoyarsk [russian federation]--russian federation--yenisei river--bryophyta--decapoda (crustacea)--thymallus arcticus
Аннотация: Methods of atomic absorption, flame photometry, and emission spectral analysis were used to study the concentrations of metals in water and major ecosystem components of the Yenisei River upstream of Krasnoyarsk City (conventionally background area). The mean bulk concentrations of Al and Cu in water exceeded the MAC for water bodies used for fishery. Cu concentration in freshwater shrimp was found to be reliably higher than that in the link of primary producers (periphyton), and Cd concentration in caddis fly larvae was found to exceed that in water moss. The maximal concentrations of metals among the examined aquatic organisms were recorded in periphyton. Cr concentration in the muscles of Arctic grayling was found to exceed some international standards. В© 2009 Pleiades Publishing, Ltd.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Kolmakov V.I., Anishchenko O.V., Ivanova E.A., Gladyshev M.I., Sushchik N.N.
Заглавие : Estimation of periphytic microalgae gross primary production with DCMU-fluorescence method in Yenisei River (Siberia, Russia)
Место публикации : Journal of Applied Phycology. - 2008. - Vol. 20, Is. 3. - С. 289-297. - ISSN 09218971 (ISSN) , DOI 10.1007/s10811-007-9246-8
Ключевые слова (''Своб.индексиров.''): chlorophyll fluorescence--gross primary production--periphytic microalgae
Аннотация: Periphyton (epilithon) gross primary production (GPP) was estimated using the DCMU-fluorescence method in the Yenisei River. In the unshaded littoral zone, chlorophyll a concentration (Chl a) and GPP value varied from 0.83 to 973.74 mg m-2and 2-304,425 O2 m-2 day -1 (0.64-95 133 mg C m-2 day-1), respectively. Positive significant correlation (r=0.8) between daily GPP and periphyton Chl a was found. Average ratio GPP:Chl a for periphyton was 36.36 mg C mg Chl a m -2 day-1. The obtained GPP values for the Yenisei River have a high significant correlation with values predicted by a conventional empirical model for stream periphyton. We concluded that the DCMU-fluorescence method can be successfully used for measuring of gross primary production of stream phytoperiphyton at least as another useful tool for such studies. В© 2007 Springer Science+Business Media B.V.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Whiles M.R., Gladyshev M.I., Sushchik N.N., Makhutova O.N., Kalachova G.S., Peterson S.D., Regester K.J.
Заглавие : Fatty acid analyses reveal high degrees of omnivory and dietary plasticity in pond-dwelling tadpoles
Место публикации : Freshwater Biology. - 2010. - Vol. 55, Is. 7. - С. 1533-1547. - ISSN 00465070 (ISSN) , DOI 10.1111/j.1365-2427.2009.02364.x
Ключевые слова (''Своб.индексиров.''): anura--diet--food web--foraging--gut contents--omnivory--selective feeding--amphibia--anura--bacteria (microorganisms)--hexapoda--lithobates--pseudacris crucifer
Аннотация: 1. Understanding the trophic relationships of consumers is central to ecology, but constructing meaningful food webs is often difficult because of a lack of detailed information on consumption versus assimilation and high degrees of omnivory.2. We used fatty acid analyses to examine the trophic relationships of three common larval anurans (Pseudacris crucifer, Lithobates catesbeianus and Lithobates clamitans) that are often classified as grazers or detritivores. Tadpoles and potential food sources were sampled in four ponds in southern Illinois and analysed for fatty acid composition. Single linkage cluster analysis was then used to compare fatty acid profiles among tadpole gut contents, tadpole muscle tissues and available food resources.3. Diets varied among species and within species among ponds, but organic sediments consistently contributed most to the fatty acid composition of the gut contents of all species. Fatty acid profiles also indicated that larval insects and phytoplankton were consumed by both L. catesbeianus and L. clamitans in one pond, while L. clamitans and P. crucifer consumed mainly periphyton along with sediments in another pond, and these diet differences appeared linked to physical differences among ponds, with periphyton and/or phytoplankton contributing more to tadpole diets in less shaded ponds.4. The fatty acid composition of muscle tissues of L. clamitans, the dominant tadpole in these systems, indicated that plant detritus and bacteria, which were the dominant components of organic sediments in the ponds, were common components of the assimilatory diet.5. Results demonstrate the utility of fatty acid analyses for assessing both consumption and assimilation. The tadpole assemblages we examined derive much of their energy from heterotrophic and allochthonous sources and exhibit high dietary plasticity. This information will allow for more accurate and comprehensive assessments of trophic interactions in freshwater habitats, as well as aid in amphibian conservation, management and captive propagation efforts. В© 2009 Blackwell Publishing Ltd.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Anishchenko O.V., Gladyshev M.I., Kravchuk E.S., Ivanova E.A., Gribovskaya I.V., Sushchik N.N.
Заглавие : Seasonal variations of metal concentrations in periphyton and taxonomic composition of the algal community at a Yenisei River littoral site
Место публикации : Central European Journal of Biology. - 2010. - Vol. 5, Is. 1. - С. 125-134. - ISSN 1895104X (ISSN) , DOI 10.2478/s11535-009-0060-y
Ключевые слова (''Своб.индексиров.''): heavy metals--periphyton--seasonal dynamics--algae--chlorophyta--cyanobacteria--ulothrix zonata
Аннотация: The concentrations of metals K, Na, Ca, Mg, Fe, Mn, Zn, Cu, Ni, Pb, Co and Cr, in the water and periphyton (epilithic algal communities) were studied at a site in the middle stream of the Yenisei River (Siberia, Russia) during three years using monthly sampling frequencies. Despite considerable seasonal variations in aquatic concentrations of some metals, there was no correlation between metal contents in the water and in periphyton. Seasonal concentration variations of some metals in periphyton were related to the species (taxonomic) composition of periphytic microalgae and cyanobacteria. Enhanced levels of Ni and Co in periphyton in late autumn, winter, and early spring were likely caused by the predominance of cyanobacteria in the periphytic community, and annual maximum levels of K in periphyton in late spring and early summer were attributed to the domination of Chlorophyta, primarily Ulothrix zonata. В© Versita Warsaw and Springer-Verlag Berlin Heidelberg.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Karpowicz M., Feniova I., Gladyshev M. I., Ejsmont-Karabin J., Gorniak A., Zielinski P., Dawidowicz P., Kolmakova A. A., Dzialowski A. R.
Заглавие : The stoichiometric ratios (C:N:P) in a pelagic food web under experimental conditions
Место публикации : Limnologica: Elsevier GmbH, 2019. - Vol. 77. - Ст.125690. - ISSN 00759511 (ISSN) , DOI 10.1016/j.limno.2019.125690
Аннотация: Interactions between phytoplankton and zooplankton affect the overall functioning of lakes. Herbivores are habitually confronted with food of inferior quality, usually a result of low nutrient concentrations in plant material. Large-bodied cladocerans are better competitors for food than small-bodied species but they are more vulnerable to low food quality. Understanding the effects of food quality on zooplankton structure and competition between small - large bodied herbivorous is of considerable interest. We want to find out how differences in C:N:P ratios between phytoplankton and zooplankton communities affect their abundances in a freshwater food web. We want also to assess the role of phytoplankton and zooplankton as sinks of the phosphorus and nitrogen. Therefore, we conducted a 31-day mesocosms experiment with water from a mesotrophic and a eutrophic lake (with natural plankton communities). To simulate changes in the plankton communities large-bodied Daphnia magna and Daphnia pulicaria were added. Samples for zooplankton, phytoplankton and water chemistry were taken every 10 days. Samples for elemental analysis (C:N:P) of seston and zooplankton were collected on the first, and on the final day of the experiment. Our mesocosms experiment showed mismatch in C:P between seston (high) and zooplankton (low), which suggests that most of the phosphorus is incorporated in zooplankton biomass. This evidenced that zooplankton is an effective sink of phosphorus, while nitrogen is accumulated mainly by primary producers. Our results also indicated more stability in stoichiometry with increasing trophic levels of organisms. However, there were significant changes in the zooplankton structure. The increasing dominance of large Daphnia resulted in reduction of C:P ratio in zooplankton. Low food quality (C:P) did not limit the growth of large Daphnia in the experimental conditions, which competed effectively with small planktonic cladocerans and with Rotifera. Over time, inedible algae began to dominate resulting in increase of relative biomass of periphyton grazers, which suggests that plankton community is transformed into littoral system in mesocosms for about 30 days. © 2019
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