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Distribution of Gammarus lacustris Sars (Amphipoda, Gammaridae) in Lake Shira (Khakasia, Siberia) and laboratory study of its growth characteristics / A. Y. Yemelyanova, T. A. Temerova, A. G. Degermendzhy // Aquatic Ecology. - 2002. - Vol. 36, Is. 2. - P245-256, DOI 10.1023/A:1015624205389 . - ISSN 1386-2588
Кл.слова (ненормированные):
Biomass -- Fresh-water shrimp -- Gammarus lacustris -- Growth -- Numbers -- biomass -- growth rate -- saline lake -- spatial distribution -- zoobenthos -- Russian Federation -- Amphipoda -- cellular organisms -- Decapoda (Crustacea) -- Gammaridae -- Gammarus -- Gammarus lacustris -- Invertebrata
Аннотация: Spatial distribution of Gammarus lacustris in Lake Shira and growth of young specimens that feed on lake biota were studied. The amphipods have been shown to inhabit the littoral, sublittoral and the upper aphytal zones of the lake on stony-sandy soil and silted sand. The young and adult individuals stay apart. The young live in submerged or semi-submerged vegetation in the littoral, the adults in the sublittoral and upper aphytal zones. Maximum density of amphipods was encountered in the areas influenced by human activity. The feeding experiments revealed that the lake plankton is a more important food source for G. lacustris than any other food species. The specific growth rate measured was 0.039 d-1, with a length increment 0.095 mm d-1.

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

Доп.точки доступа:
Yemelyanova, A.Y.; Temerova, T.A.; Degermendzhy, A.G.

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Influence of anthropogenic pollution on content of essential polyunsaturated fatty acids in links of food chain of river ecosystem / M. I. Gladyshev [et al.] // Contemporary Problems of Ecology. - 2012. - Vol. 5, Is. 4. - P376-385, DOI 10.1134/S1995425512040051 . - ISSN 1995-4255
Кл.слова (ненормированные):
gammarus -- grayling -- heavy metals -- polyunsaturated fatty acids -- amphipod -- anthropogenic effect -- anthropogenic source -- fatty acid -- food chain -- heavy metal -- littoral environment -- oil pollution -- phenol -- river system -- salmonid -- sampling -- Krasnoyarsk [Russian Federation] -- Russian Federation -- Yenisei River -- Gammarus
Аннотация: In the course of monthly sampling in 2008-2010, two regions of the littoral of the Yenisei river were compared. One of these regions (conventionally pure) was situated upstream of Krasnoyarsk, while the other (conventionally polluted) was downstream of Krasnoyarsk. The concentrations of heavy metals, oil products, phenols, biogenic elements and essential polyunsaturated fatty acids (PUFAs) in various components of the river ecosystem were determined. It was discovered that the anthropogenic pollution causes a decrease in the resources of essential PUFA in the biomass of the upper links of the food chain of the river ecosystem. В© 2012 Pleiades Publishing, Ltd.

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Держатели документа:
Institute of Biophysics, Siberian Branch, Russian Academy of Sciences, Akademgorodok 50, Krasnoyarsk 660036, Russian Federation
Siberian Federal University, Svobodnii prosp. 79, Krasnoyarsk 660041, Russian Federation : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Gladyshev, M.I.; Anishchenko, O.V.; Sushchnik, N.N.; Kalacheva, G.S.; Gribovskaya, I.V.; Ageev, A.V.

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Stable isotope composition of fatty acids in organisms of different trophic levels in the yenisei river / M. I. Gladyshev [et al.] // PLoS ONE. - 2012. - Vol. 7, Is. 3. - Ст. e34059, DOI 10.1371/journal.pone.0034059 . - ISSN 1932-6203
Кл.слова (ненормированные):
carbon 13 -- fatty acid -- carbon -- Apatania crymophila -- article -- benthos -- Eulimnogammarus viridis -- fatty acid analysis -- fatty acid desaturation -- Fontinalis antipyretica -- food chain -- food web -- freshwater fish -- isotope analysis -- lipid composition -- microalga -- moss -- nonhuman -- pelagic zone -- river ecosystem -- Russian Federation -- stable isotope analysis -- Thymallus arcticus -- trophic level -- animal -- chemistry -- larva -- metabolism -- river -- Bryophyta -- Gammaridae -- Trichoptera -- Animals -- Carbon Isotopes -- Fatty Acids -- Food Chain -- Larva -- Microalgae -- Rivers
Аннотация: We studied four-link food chain, periphytic microalgae and water moss (producers), trichopteran larvae (consumers I), gammarids (omnivorous - consumers II) and Siberian grayling (consumers III) at a littoral site of the Yenisei River on the basis of three years monthly sampling. Analysis of bulk carbon stable isotopes and compound specific isotope analysis of fatty acids (FA) were done. As found, there was a gradual depletion in 13C contents of fatty acids, including essential FA upward the food chain. In all the trophic levels a parabolic dependence of ? 13C values of fatty acids on their degree of unsaturation/chain length occurred, with 18:2n-6 and 18:3n-3 in its lowest point. The pattern in the ? 13C differences between individual fatty acids was quite similar to that reported in literature for marine pelagic food webs. Hypotheses on isotope fractionation were suggested to explain the findings. В© 2012 Gladyshev et al.

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

Доп.точки доступа:
Gladyshev, M.I.; Sushchik, N.N.; Kalachova, G.S.; Makhutova, O.N.

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Spatial distribution of resting stages (akinetes) of the cyanobacteria Anabaena flos-aquae in sediments and its influence on pelagic populations / E. S. Kravchuk, E. A. Ivanova, M. I. Gladyshev // Marine and Freshwater Research. - 2011. - Vol. 62, Is. 5. - P450-461, DOI 10.1071/MF10256 . - ISSN 1323-1650
Кл.слова (ненормированные):
cyanobacterial blooms -- harmful algae -- reservoir -- resting stages -- sediment management -- water quality -- abundance -- bioaccumulation -- biomass -- cyanobacterium -- environmental factor -- experimental study -- green alga -- inoculation -- littoral environment -- macrophyte -- pelagic environment -- phytoplankton -- population structure -- qualitative analysis -- recruitment (population dynamics) -- reservoir -- seasonal variation -- sediment analysis -- silt -- spatial distribution -- vertical distribution -- water quality -- Siberia -- algae -- Anabaena flos-aquae -- Cyanobacteria
Аннотация: Recruitment of pelagic populations of cyanobacteria from littoral bottom sediments is assumed to be one of the key factors for the development of harmful blooms. Therefore, it is necessary to obtain more information on the possible factors influencing the spatial distribution of the resting stages in littoral bottom sediments. To test the hypothesis that akinete abundances in littoral bottom sediments are associated with silt and the presence of higher water plants, we sampled spatial and vertical distribution and seasonal dynamics of akinetes of cyanobacterium Anabaena flos-aquae in a small Siberian reservoir. We found that akinetes accumulate in silt at stations located in macrophyte beds. Two experiments were carried out to test if there is relationship between size of inoculum and size of the pelagic population of A. flos-aquae. The proportion of A. flos-aquae in total phytoplankton biomass depended on the initial abundance of akinetes in bottom sediments. The model based on laboratory experiments gave good qualitative description of the field data. These findings can be useful to predict the location of the main akinete accumulation zones in a water body and plan the removal of sediment to prevent the cyanobacterial blooms. В© CSIRO 2011.

Scopus
Держатели документа:
Institute of Biophysics, Siberian Branch, Russian Academy of Sciences, Akademgorodok, Krasnoyarsk, 660036, Russian Federation
Siberian Federal University, Svobodny av. 79, Krasnoyarsk, 660041, Russian Federation : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Kravchuk, E.S.; Ivanova, E.A.; Gladyshev, M.I.

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Water moss as a food item of the zoobenthos in the Yenisei River / G. S. Kalachova [et al.] // Central European Journal of Biology. - 2011. - Vol. 6, Is. 2. - P236-245, DOI 10.2478/s11535-010-0115-0 . - ISSN 1895-104X
Кл.слова (ненормированные):
Acetylenic fatty acids -- Bryophytes -- Fontinalis -- Gammarids -- Stable isotope analysis -- Trichopterans -- Animalia -- Bryophyta -- bryophytes -- Chironomidae -- Ephemeroptera -- Eulimnogammarus viridis -- Fontinalis -- Fontinalis antipyretica -- Gammaridae -- Invertebrata -- Trichoptera
Аннотация: Bryophytes are abundant in streams and are a habitat for many invertebrates, but their contribution to the diet of fluvial zoobenthos is still debated. To estimate the amount of bryophyte-derived organic matter assimilated by benthic invertebrates, we used a combination of fatty acid and stable isotope analyses during a four-year monthly study of a littoral site in the Yenisei River (Siberia, Russia). Acetylenic acids, which are highly specific biomarkers of the water moss Fontinalis antipyretica, were found in lipids of all dominant benthic animals: gammarids, ephemeropterans, chironomids and trichopterans. The dominant zoobenthic species, Eulimnogammarus viridis, had maximum levels of the biomarkers in its biomass during winter, and minimum levels in summer. The zoobenthos in the studied site regularly consume and assimilate bryophyte-derived organic matter as a minor supplemental food. This consumption increases in winter, when the main food source of the zoobenthos, epilithic biofilms, are probably scarce. В© 2010 Versita Warsaw and Springer-Verlag Wien.

Scopus
Держатели документа:
Institute of Biophysics of Siberian Branch of the Russian Academy of Science, 660036 Krasnoyarsk, Russian Federation
Siberian Federal University, 660041 Krasnoyarsk, Russian Federation : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Kalachova, G.S.; Gladyshev, M.I.; Sushchik, N.N.; Makhutova, O.N.

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Seasonal distribution and fatty acid composition of littoral microalgae in the Yenisei River / N. N. Sushchik [et al.] // Journal of Applied Phycology. - 2010. - Vol. 22, Is. 1. - P11-24, DOI 10.1007/s10811-009-9418-9 . - ISSN 0921-8971
Кл.слова (ненормированные):
Fatty acids -- Riverine microalgae -- Taxa composition -- Temperature adaptations -- algae -- Bacillariophyta -- Chlorophyta -- Cyanobacteria
Аннотация: We studied fatty acid (FA) composition of littoral microalgae in the fast-flowing oligotrophic river, the Yenisei, Siberia, monthly for 3 years. Seasonal dynamics of species composition had similar patterns in all the studied years. In springs, a pronounced dominance of filamentous green algae occurred, in summer and autumn diatoms were abundant, and in late autumn and winter epilithic biofilms consisted primarily of cyanobacteria and detritus. In general, FA composition of the algal periphytic community was dominated by 16:0, 16:1?7, 20:5?3, 14:0, and 18:3?3 throughout the studied period. Several groups of FAs, which had peculiar seasonal dynamics, were differentiated by statistical analysis based on a method of correlation graphs. The seasonal changes in FA composition could be partly explained by the seasonal succession of species composition of the community. Besides, we found that populations of both diatom and green algae grown in summer at a higher water temperature were lower in polyunsaturated fatty acids than those in spring, at a lower temperature. Hence, we suppose that the regular seasonal dynamics of FA composition of the studied littoral microalgae was driven both by changes in species composition and by temperature adaptations of the algal populations. The highest content of essential polyunsaturated FAs, eicosapentaenoic and docosahexaenoic acids, in the spring "psychrophilic" populations of diatoms could make them of the higher nutritive value for zoobenthic primary consumers. В© Springer Science+Business Media B.V. 2009.

Scopus
Держатели документа:
Institute of Biophysics of Siberian Branch of Russian Academy of Sciences, Akademgorodok, Krasnoyarsk 660036, Russian Federation
Siberian Federal University, Svobodny av. 79, Krasnoyarsk 660041, Russian Federation : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Sushchik, N.N.; Gladyshev, M.I.; Ivanova, E.A.; Kravchuk, E.S.

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Seasonal variations of metal concentrations in periphyton and taxonomic composition of the algal community at a Yenisei River littoral site / O. V. Anishchenko [et al.] // Central European Journal of Biology. - 2010. - Vol. 5, Is. 1. - P125-134, DOI 10.2478/s11535-009-0060-y . - ISSN 1895-104X
Кл.слова (ненормированные):
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.

Scopus
Держатели документа:
Institute of Biophysics, Siberian Branch of Russian Academy of Sciences, 660036 Krasnoyarsk, Russian Federation
Siberian Federal University, 660041 Krasnoyarsk, Russian Federation : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Anishchenko, O.V.; Gladyshev, M.I.; Kravchuk, E.S.; Ivanova, E.A.; Gribovskaya, I.V.; Sushchik, N.N.

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Estimation of periphytic microalgae gross primary production with DCMU-fluorescence method in Yenisei River (Siberia, Russia) / V. I. Kolmakov [et al.] // Journal of Applied Phycology. - 2008. - Vol. 20, Is. 3. - P289-297, DOI 10.1007/s10811-007-9246-8 . - ISSN 0921-8971
Кл.слова (ненормированные):
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.

Scopus
Держатели документа:
Siberian Federal University, Svobodny av.79, Krasnoyarsk 660041, Russian Federation
Institute of Biophysics, Siberian Branch, Russian Academy of Sciences, Akademgorodok, Krasnoyarsk 660036, Russian Federation
Krasnoyarsk State Agricultural University, Mira av., 88, Krasnoyarsk 660049, Russian Federation : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Kolmakov, V.I.; Anishchenko, O.V.; Ivanova, E.A.; Gladyshev, M.I.; Sushchik, N.N.

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Non-predatory mortality indices of cladoceran zooplankton in the pelagial and littoral of a shallow meso-eutrophic lake / O. P. Dubovskaya [et al.] // Doklady Biological Sciences. - 2007. - Vol. 416, Is. 1-6. - P391-393, DOI 10.1134/S0012496607050201 . - ISSN 0012-4966
Кл.слова (ненормированные):
animal -- article -- biological model -- ecology -- ecosystem -- environment -- growth, development and aging -- metabolism -- physiology -- river -- Russian Federation -- species difference -- zooplankton -- Animals -- Ecology -- Ecosystem -- Environment -- Models, Biological -- Rivers -- Russia -- Species Specificity -- Zooplankton

Scopus
Держатели документа:
Institute of Biophysics, Siberian Division, Russian Academy of Sciences, Krasnoyarsk 660036, Russian Federation
Institute of Zoology, Belarussian Academy of Sciences, ul. F. Skoriny 27, Minsk 220072, Belarus
Siberian Federal University, Krasnoyarsk, Russian Federation : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Dubovskaya, O.P.; Semenchenko, V.P.; Gladyshev, M.I.; Buseva, J.F.; Razlutskij, V.I.

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10.

Seasonal dynamics of long-chain polyunsaturated fatty acids in littoral benthos in the upper Yenisei river / N. N. Sushchik [et al.] // Aquatic Ecology. - 2007. - Vol. 41, Is. 2. - P349-365, DOI 10.1007/s10452-006-9065-z . - ISSN 1386-2588
Кл.слова (ненормированные):
Essential compounds -- Periphytonic microalgae -- Riverine food chain -- Zoobenthos -- amphipod -- annelid -- benthos -- biomass -- diatom -- dominance -- fatty acid -- food chain -- larva -- littoral environment -- seasonal variation -- Eurasia -- Krasnoyarsk [Russian Federation] -- Russian Federation -- Yenisei River -- Amphipoda -- Annelida -- Arthropoda -- Bacillariophyta -- Chironomidae -- Gammaridae -- Hexapoda -- Invertebrata -- Oligochaeta (Metazoa) -- Trichoptera
Аннотация: We studied composition and concentrations of fatty acids (FAs) in benthos from pebbly littoral region of the Yenisei River in a sampling site near Krasnoyarsk city (Siberia, Russia) for 1 year from March 2003 to February 2004. Special attention was paid to major long-chain polyunsaturated fatty acids (PUFAs) of the ?3 family: eicosapentaenoic acid (EPA, 20:5?3) and docosahexaenoic acids (DHA, 22:6?3). In phytobenthos, which was dominated by diatoms, the annual maxima of EPA and DHA pool occurred in spring and early summer. In zoobenthos, EPA and DHA pool peaked in autumn, due mainly to an increase of the biomass of dominant taxa (gammarids) and to a moderate increase of the PUFA content per body weight. Seasonal peaks of EPA in overwintering insect larvae (chironomids and caddisflies) generally coincided with those of biomass of these larvae, while there was no such trend for amphipods and oligochaetes. In spring and early summer, the main part of ?3 PUFA, 40-97% of total amount, in the littoral region was contained in biomass of producers, i.e., benthic microalgae, and in autumn it was transferred to primary consumers-benthic invertebrates, which contained ?76-93% of total ?3 PUFAs. В© 2006 Springer Science+Business Media, B.V.

Scopus
Держатели документа:
Institute of Biophysics, Siberian Branch, Russian Academy of Sciences, Akademgorodok, Krasnoyarsk 660036, Russian Federation
Krasnoyarsk State Agricultural University, Mira av., 88, Krasnoyarsk 660049, Russian Federation
Krasnoyarsk State University, Svobodny av., 79, Krasnoyarsk 660042, Russian Federation : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Sushchik, N.N.; Gladyshev, M.I.; Kravchuk, E.S.; Ivanova, E.A.; Ageev, A.V.; Kalachova, G.S.

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11.

Seasonal dynamics of akinetes of Anabaena flos-aquae in bottom sediments and water column of small Siberian reservoir / E. S. Kravchuk, E. A. Ivanova, M. I. Gladyshev // Aquatic Ecology. - 2006. - Vol. 40, Is. 3. - P325-336, DOI 10.1007/s10452-006-9031-9 . - ISSN 1386-2588
Кл.слова (ненормированные):
Akinetes -- Cyanobacteria -- Cyanobacterial blooms -- Resting stages -- abundance -- alga -- intertidal environment -- open water -- population dynamics -- reservoir -- sediment -- water column -- Eurasia -- Siberia -- Anabaena -- Anabaena flos-aquae -- Cyanobacteria
Аннотация: Seasonal dynamics of Anabaena flos-aquae (Lyngb.) Breb., including vegetative cells, akinetes and akinete envelopes, in bottom sediments and water column at both littoral and deeper central stations of a small Siberian reservoir was studied. Two types of akinetes were observed: in the first half of summer Anabaena formed akinetes, which served for vegetative reproduction and germinated in water column soon after differentiation, while in the second half of summer the akinetes produced served as a resting stages, which were deposited to bottom sediments. Canonical correlation analyses revealed that decrease of water temperature was the main environmental factor that stimulated the akinete formation. In contrast to the general opinion, concentration of inorganic phosphorus slightly, but positively influenced the akinete formation. Thus, akinetes formed in response to the temperature decrease, needs a certain level of this nutrient. At littoral and open-water stations abundance and seasonal dynamics of akinetes in water column and their sinking pattern were very similar. However, seasonal dynamics of abundance of akinetes in sediments in these two reservoir locations differed: whereas the abundance of akinetes in open water increased permanently during the summer, that in the littoral decreased soon after their sedimentation. The cause for decrease in abundance of akinetes in bottom sediments in winter is unknown. В© Springer 2006.

Scopus
Держатели документа:
Institute of Biophysics, Siberian Branch, Russian Academy of Sciences, Akademgorodok, Krasnoyarsk, 660036, Russian Federation
Krasnoyarsk State Agricultural University, Mira av., 88, Krasnoyarsk, 660049, Russian Federation : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Kravchuk, E.S.; Ivanova, E.A.; Gladyshev, M.I.

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12.

Seasonal dynamics of standing stock of essential polyunsaturated fatty acids in biomass of phyto- and zoobenthos at a littoral station in Enisei river / M. I. Gladyshev [и др.] // Doklady Akademii Nauk. - 2005. - Vol. 403, Is. 2. - С. 277-278 . - ISSN 0869-5652
Кл.слова (ненормированные):
Composition -- Ecosystems -- Fatty acids -- Rivers -- Littoral ecosystems -- Phytobenthos -- Seasonal variations -- Zoobenthos -- Biomass
Аннотация: It is established for the first time that in the river littoral ecosystem standing stock of essential polyunsaturated fatty acids in spring and early summer is accumulated in phytobenthos biomass, whereas in the fall the main part of this stock is shifted to the zoobenthos biomass. In the latter proceeds the concentrating of standing stock of essential polyunsaturated fatty acids of ?3 family, i.e. eicosapentaenoic and docosahexaenoic acids.

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

Доп.точки доступа:
Gladyshev, M.I.; Sushchik, N.N.; Kravchuk, E.S.; Ivanova, E.A.; Ageev, A.V.; Kalacheva, G.S.

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13.

Seasonal changes in the standing stock of essential polyunsaturated fatty acids in the biomass of phyto- and zoobenthos on a littoral station of the Yenisei River / M. I. Gladyshev [et al.] // Doklady Biological Sciences. - 2005. - Vol. 403, Is. 1-6. - P267-268, DOI 10.1007/s10630-005-0107-9 . - ISSN 0012-4966
Кл.слова (ненормированные):
essential fatty acid -- animal -- article -- lipid metabolism -- metabolism -- physiology -- phytoplankton -- river -- Russian Federation -- season -- zooplankton -- Animals -- Fatty Acids, Essential -- Lipid Metabolism -- Phytoplankton -- Rivers -- Seasons -- Siberia -- Zooplankton

Scopus
Держатели документа:
Institute of Biophysics, Siberian Division, Russian Academy of Sciences, Akademgorodok, Krasnoyarsk, 660036, Russian Federation
Krasnoyarsk State Agrarian University, Krasnoyarsk, Russian Federation
Krasnoyarsk State University, Krasnoyarsk, 660062, Russian Federation : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Gladyshev, M.I.; Sushchik, N.N.; Kravchuk, E.S.; Ivanova, E.A.; Ageev, A.V.; Kalacheva, G.S.

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14.

A comparison of the fatty acid composition of Gammarus lacustris and its food sources from a freshwater reservoir, Bugach, and the saline lake Shira in Siberia, Russia / O. N. Makhutova, G. S. Kalachova, M. I. Gladyshev // Aquatic Ecology. - 2003. - Vol. 37, Is. 2. - P159-167, DOI 10.1023/A:1023975101075 . - ISSN 1386-2588
Кл.слова (ненормированные):
Fatty acid composition -- Freshwater reservoir -- Gammarus lacustris -- Gut content -- Saline lake -- Sediments -- Seston -- fatty acid -- freshwater ecosystem -- lacustrine deposit -- macroinvertebrate -- saline lake -- seston -- stomach content -- Russian Federation -- Amphipoda -- Animalia -- Crustacea -- Gammarus -- Gammarus lacustris -- Invertebrata
Аннотация: We studied fatty acid (FA) composition in samples from bodies and intestinal contents of the littoral amphipod Gammarus lacustris Sars, from the Bugach freshwater reservoir. Simultaneously, samples of seston and bottom sediments were also collected from the reservoir during early August. There were no differences in FA composition of gut contents, seston and sediments of pebbly bottom. Seston was the main food source of Gammarus but some FAs Gammarus got from sediments. The FA composition of G. lacustris and seston from the Bugach freshwater reservoir were compared with those of the animals from the saltwater Lake Shira (Siberia). While FA composition of the two Gammarus populations differed significantly, those of seston were practically similar: the composition of long-chain unsaturated fatty acids, 20:5?3, 22:6?3 and 20:4?6, were significantly higher in animals from saline Shira Lake, whereas 16:1 and 16:0 were higher in the freshwater populations of amphipods from the Bugach freshwater reservoir. Taking into account the relevant literature data, we hypothesise that this difference in C16 acid might be a distinguishing characteristic of FA composition of freshwater and saltwater crustaceans.

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Держатели документа:
Inst. Biophys. Siberian Br. Russ. A., Akademgorodok, 660036, Krasnoyarsk, Russian Federation
Krasnoyarsk State University, Svobodny av., 79, Krasnoyarsk, 660042, Russian Federation : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Makhutova, O.N.; Kalachova, G.S.; Gladyshev, M.I.

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15.

Gut content analysis of Gammarus lacustris from a Siberian lake using biochemical and biophysical methods / M. I. Gladyshev [et al.] // Hydrobiologia. - 2000. - Vol. 431, Is. 2-3. - P155-163 . - ISSN 0018-8158
Кл.слова (ненормированные):
Chlorophyll fluorescence -- Fatty acid composition -- Viable gut passage -- crustacean -- diet -- saline lake -- seston -- stomach content -- Russian Federation
Аннотация: We studied the gut contents of Gammarus lacustris from the littoral of Shira lake, a Siberian salt lake, by microscopic analysis in conjunction with measuring of fluorescence of chlorophyll and composition of fatty acids. Gammarus ingested primarily fresh seston, probably settled on the bottom. Additionally, the amphipods obtained essential polyunsaturated fatty acids of ?3 family by selectively consuming bottom sediment particles. A considerable part of the ingested seston comprised cells of Botryococcus sp., which passed the intestinal tract in living form and their photosynthetic activity increased. This viable gut passage was likely one of the causes of bloom of Botryococcus in the littoral. Unlike a number of literature data, there was no selective digestion of any fatty acid species, including polyunsaturated acids, in the intestinal tract.

Scopus
Держатели документа:
Institute of Biophysics, Siberian Branch of 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:
Gladyshev, M.I.; Emelianova, A.Y.; Kalachova, G.S.; Zotina, T.A.; Gaevsky, N.A.; Zhilenkov, M.D.

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16.

The vertical distribution and abundance of Gammarus lacustris in the pelagic zone of the meromictic lakes Shira and Shunet (Khakassia, Russia) / E. S. Zadereev [et al.] // Aquatic Ecology. - 2010. - Vol. 44, Is. 3. - P531-539, DOI 10.1007/s10452-010-9329-5 . - ISSN 1386-2588
Кл.слова (ненормированные):
Amphipod -- Gammarus lacustris -- Meromictic lake -- Thermocline -- Vertical distribution -- abundance -- amphipod -- dissolved oxygen -- intertidal environment -- meromictic lake -- pelagic environment -- seston -- stratification -- thermocline -- vertical distribution -- videography -- water temperature -- Khakassia -- Lake Shira -- Lake Shunet -- Russian Federation -- Amphipoda -- Animalia -- Gammarus -- Gammarus lacustris
Аннотация: The vertical distribution and abundance of Gammarus lacustris in the pelagic zone of two fishless meromictic lakes, L. Shira and L. Shunet, in Southern Siberia (Russia), was studied with the underwater video recording system and using vertical hauls. In both lakes, during summer stratification, Gammarus was distributed non-homogenously, with a stable peak in the metalimnion. The average depth of Gammarus population in the pelagic zone was significantly correlated with the depth of the thermocline. Gammarus abundances obtained using vertical plankton hauls with net were quite comparable with those obtained from video records. The peak abundance of Gammarus in the pelagic zone of the lakes observed with underwater video amounted up to 400 individuals m-2, while the peak animal densities in the metalimnion reached 50 ind. m-3. The data are compared with previously published abundances of Gammarus in the littoral of Lake Shira. Both littoral and pelagic can be equally important habitats for amphipods in meromictic lakes. The absence of fish in the pelagic zone, high oxygen concentration, low water temperature, increased seston concentration, elevated water density in the metalimnion and the anoxic hypolimnion can be the most probable combination of factors that are responsible for the peak of Gammarus in the metalimnion of these lakes. В© 2010 Springer Science+Business Media B.V.

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Держатели документа:
Institute of Biophysics SB RAS, Krasnoyarsk, Akademgorodok 660036, Russian Federation
Siberian Federal University, Svobodnyi 79, Krasnoyarsk 660041, Russian Federation : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Zadereev, E.S.; Tolomeyev, A.P.; Drobotov, A.V.; Emeliyanova, A.Y.; Gubanov, M.V.

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17.

Microbial sulfate reduction in a brackish meromictic steppe lake / D. B. Kosolapov [et al.] // Aquatic Ecology. - 2003. - Vol. 37, Is. 3. - P215-226, DOI 10.1023/A:1025871300917 . - ISSN 1386-2588
Кл.слова (ненормированные):
Anoxic waters -- Brackish meromictic lake -- Littoral and profundal sediments -- Sulfate reduction -- anoxic conditions -- brackish water -- meromictic lake -- reduction -- sulfate -- Russian Federation -- Viscum -- Viscum album
Аннотация: Patterns of sulfate reduction were studied in water and sediments of Lake Shira, South Siberia, Russia. The lake was characterized by a high level of sulfate (91-116 mM). The concentration of hydrogen sulfide in the anoxic waters of the lake reached 0.6 mM. In summer the sulfate reduction rate in the water column, measured by radiometric technique, varied from 0.25 to 9.81 ?mol sulfate l-1 d-1. There were two peaks of sulfate reduction activity: just below the chemocline and near the sediment surface. Sulfate reduction rate in the profundal silts ranged from 4.1 to 90.6 ?mol l-1 d-1. The zone of the most active sulfate reduction was restricted to the surface sediment layers. The acceleration of sulfate reduction rate (up to 236 ?mol l-1 d-1) and the increase of density of viable sulfate reducers (up to 2 x 105 cells ml-1) were recorded in the littoral sediments adjacent to the mouth of the Son River and sewage discharge. It was apparently caused by the input of allochthonous organic substrates and also by a high environmental temperature. On an areal basis, sulfate reduction rate in the water was approximately 8 times higher than that in the profundal sediments. Sulfate reduction was the most important process of anaerobic oxidation of organic carbon in Lake Shira. In summer in the profundal zone of the lake, sulfate reducers were able to mineralize about 67% of the daily integrated primary production of phototrophic and chemotrophic organisms.

Scopus
Держатели документа:
Inst. for Biology of Inland Waters, Russian Academy of Sciences, Borok, Nekouz, Yaroslavl, 152742, Russian Federation
Inst. Biophys. Siberian Br. Russ. A., Akademgorodok, Krasnoyarsk, 660036, Russian Federation : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Kosolapov, D.B.; Rogozin, D.Yu.; Gladchenko, I.A.; Kopylov, A.I.; Zakharova, E.E.

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18.

Multiple antibiotic resistance of heterotrophic bacteria in the littoral zone of Lake Shira as an indicator of human impact on the ecosystem / T. I. Lobova [et al.] // Microbiological Research. - 2008. - Vol. 163, Is. 2. - P152-160, DOI 10.1016/j.micres.2006.03.014 . - ISSN 0944-5013
Кл.слова (ненормированные):
Antibiotic resistance -- Aquatic ecosystems -- Heterotrophic bacteria -- Human impact -- Monitoring -- Antibiotics -- Bacteria -- Ecosystems -- Environmental impact -- Mammals -- Antibiotic resistance -- Aquatic ecosystems -- Heterotrophic bacteria -- Materials -- antiinfective agent -- fresh water -- allochthony -- anthropogenic effect -- antibiotic resistance -- bacterium -- concentration (composition) -- heterotrophy -- intertidal environment -- monitoring -- recreational facility -- spring (season) -- summer -- animal -- article -- bacterial count -- bacterium -- drug effect -- ecosystem -- environmental monitoring -- heterotrophy -- human -- isolation and purification -- methodology -- microbiological examination -- microbiology -- multidrug resistance -- Russian Federation -- season -- Animals -- Anti-Bacterial Agents -- Bacteria -- Colony Count, Microbial -- Drug Resistance, Multiple, Bacterial -- Ecosystem -- Environmental Monitoring -- Fresh Water -- Heterotrophic Processes -- Humans -- Microbial Sensitivity Tests -- Russia -- Seasons -- Eurasia -- Khakassia -- Lake Shira -- Russian Federation -- Animalia -- Bacteria (microorganisms)
Аннотация: Resistance to Ampicillin and Kanamycin displayed by heterotrophic bacteria isolated in Summer and in Spring from the littoral and the central parts of Lake Shira (a therapeutic lake in the Khakasia Republic, Russia) has been investigated. It has been found that in Summer, human and animal microflora featuring multiple antibiotic resistance (to Ampicillin and Kanamycin) predominates in all the studied stations of the littoral zone of the lake. In Spring, concentrations of bacteria featuring multiple antibiotic resistance decrease significantly and bacteria sensitive to antibiotics predominate in the lake. Emergence of multiple antibiotic resistance in bacteria of Lake Shira is caused by the input of allochthonous bacteria into the lake; this feature of heterotrophic bacteria of Lake Shira can be used to monitor the impact on the ecosystem made by health resorts. В© 2006 Elsevier GmbH. All rights reserved.

Scopus
Держатели документа:
LTD Territory-oriented information systems, Institute of Computational Modeling, Russian Academy of Sciences, Akademgorodok 50, Krasnoyarsk 660036, Russian Federation
Institute of Biophysics, Russian Academy of Sciences, Siberian Branch, Akademgorodok 50, 660036, Russian Federation
Center of Hygiene and Epidemiology in Krasnoyarsk Region, Sopochnaya 38, Russian Federation
Krasnoyarsk Scientific Centre, Akademgorodok 50, Krasnoyarsk, 660036, Russian Federation : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Lobova, T.I.; Barkhatov, Y.V.; Salamatina, O.V.; Popova, L.Yu.

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19.

Potential effect of macrophyte beds on number of akinetes of blue-green algae in littoral of a body of water / E. S. Kravchuk, T. V. Anisimova // Contemporary Problems of Ecology. - 2012. - Vol. 5, Is. 4. - P430-433, DOI 10.1134/S1995425512040087 . - ISSN 1995-4255
Кл.слова (ненормированные):
akinetes -- blue-green algae -- bottom sediments -- resting stages -- water bloom -- algal bloom -- cyanobacterium -- lacustrine deposit -- littoral environment -- macrophyte -- reservoir -- Siberia -- Chlorophyta
Аннотация: The distribution of the resting stages of blue-green algae (akinetes) in bottom sediments of the littoral of a small Siberian water reservoir has been studied. The irregularity (mosaicism) of the distribution of akinetes in the bottom sediments of the littoral has been demonstrated and the possible mechanisms of its formation have been analyzed. В© 2012 Pleiades Publishing, Ltd.

Scopus
Держатели документа:
Institute of Biophysics, Siberian Branch, Russian Academy of Sciences, Akademgorodok, Krasnoyarsk 660036, Russian Federation
Siberian Federal University, Svobodnii prosp. 79, Krasnoyarsk 660041, Russian Federation : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Kravchuk, E.S.; Anisimova, T.V.

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20.

LUMINESCENT PLANKTON BACTERIA FROM THE CORAL REEFS AND LITTORAL WATERS OF THE TROPICAL REGIONS OF THE INDIAN-OCEAN AND THE SOUTH CHINA SEA [Text] / G. A. PRIMAKOVA, A. M. KUZNETSOV // Microbiology. - 1990. - Vol. 59, Is. 5. - P. 630-637. - Cited References: 19 . - ISSN 0026-2617

РУБ Microbiology
Рубрики:
LUMINOUS BACTERIA
   SPECIES COMPOSITION
   MEDITERRANEAN SEA
   ESTUARY
   GULF
   ELAT
Аннотация: Luminescent bacteria were regularly encountered on the coral reefs of both the Indian Ocean and the South China Sea. Their counts in these regions amounted to 10(2) to 10(4) colony-forming units (CFU)/liter, and their proportion of the total numbers of saprophytic bacteria was 0.1-6.0%. Up to 85% of the luminescent bacteria occurred in the sea water in the form of aggregates ranging in size from 3-8-mu-m, to below 200-mu-m. The predominant species amongst the luminescent bacteria of these regions was Vibrio harvevi, comprising [4], with only 8.8% represented by Photobacterium leiognathi.

WOS : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
PRIMAKOVA, G.A.; KUZNETSOV, A.M.

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