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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Gladyshev, Michail I., Makhrov, Alexander A., Baydarov, Ilia V., Safonova, Stanislava S., Golod, Viktor M., Alekseyev, Sergey S., Glushchenko, Larisa A., Rudchenko, Anastasia E., Karpov, Vladimir A., Sushchik, Nadezhda N.
Заглавие : Fatty Acid Composition and Contents of Fish of Genus Salvelinus from Natural Ecosystems and Aquaculture
Колич.характеристики :17 с
Место публикации : Biomolecules: MDPI, 2022. - Vol. 12, Is. 1. - Ст.144. - ISSN 2218-273X(eISSN), DOI 10.3390/biom12010144
Примечания : Cited References:82
Предметные рубрики: ALPINUS SALMONIDAE
MOLECULAR ACTIVITY
SEASONAL DYNAMICS
SYMPATRIC
Аннотация: Fatty acids (FA) of muscle tissue of Salvelinus species and its forms, S. alpinus, S. boganidae, S. drjagini, and S. fontinalis, from six Russian lakes and two aquacultures, were analyzed. Considerable variations in FA compositions and contents were found, including contents of eicosapentaenoic and docosahexaenoic acids (EPA and DHA), which are important indicators of fish nutritive value for humans. As found, contents of EPA+DHA (mg center dot g(-1) wet weight) in muscle tissue of Salvelinus species and forms varied more than tenfold. These differences were supposed to be primarily determined by phylogenetic factors, rather than ecological factors, including food. Two species, S. boganidae and S. drjagini, had the highest EPA+DHA contents in their biomass and thereby could be recommended as promising species for aquaculture to obtain production with especially high nutritive value. Basing on revealed differences in FA composition of wild and farmed fish, levels of 15-17-BFA (branched fatty acids), 18:2NMI (non-methylene interrupted), 20:2NMI, 20:4n-3, and 22:4n-3 fatty acids were recommended for verifying trade label information of fish products on shelves, as the biomarkers to differentiate wild and farmed charr.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Lopatina, Tatiana, Anishchenko, Olesya, Oskina, Natalia, Zadereev, Egor
Заглавие : Threshold concentrations of the road salt for adverse effects on females and resting eggs of cladoceran Moina macrocopa
Колич.характеристики :15 с
Коллективы : Russian Foundation for Basic ResearchRussian Foundation for Basic Research (RFBR); Krasnoyarsk Krai Government; Krasnoyarsk Regional Fund [19-44-240014]
Место публикации : Aquat. Ecol.: SPRINGER, 2021. - Article in press. - ISSN 1386-2588, DOI 10.1007/s10452-021-09830-z. - ISSN 1573-5125(eISSN)
Примечания : Cited References:45. - The reported study was funded by the Russian Foundation for Basic Research, the Krasnoyarsk Krai Government, and the Krasnoyarsk Regional Fund for supporting scientific and technical activities, project number 19-44-240014. We are grateful to two anonymous reviewers for the valuable comments and suggestions and to Elena Krasova for linguistic check and improvements.
Аннотация: The salinization of freshwaters due to the use of deicing road salts is a serious anthropogenic threat. We investigated the effects of the road deicer, which is mostly composed (ca. 70%) of NaCl, on the life cycle parameters of the cladoceran Moina macrocopa in acute and chronic toxicity tests and on the hatching success of resting eggs exposed to sediments contaminated with the road salt. The negative effects of the road salt on survival and life cycle parameters of animals were observed at concentrations above 5 g L-1. The 6-month exposure of resting eggs to contaminated sediments had a consistent but relatively weak effect on the postexposure hatching of resting eggs. Experiments demonstrated that the concentration of the deicer in the top water layer in the water-sediment systems is more important for the hatching success of resting eggs than the salt content in the sediment. Only 2.2 +/- 1.9% of resting eggs hatched when the deicer content in the top water layer was equal to 12 g L-1. Lethal effects on hatchlings were observed starting from the deicer content in the water equal to 1 g L-1, and 97.0 +/- 0.8% of hatchlings were dead at the deicer content in the water equal to 5 g L-1. Thus, the resilience of resting eggs to the contaminated sediments can ensure the replenishment of the population from the egg bank after the salinity disturbance is diminished but the negative effects of the elevated salt content in surface waters on active population will be manifested at lower salinities.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Gusakov, Vladimir A., Makhutova, Olesia N., Gladyshev, Michail I., Golovatyuk L. V., Zinchenko, Tatiana D.
Заглавие : Ecological Role of Cyprideis torosa and Heterocypris salina (Crustacea, Ostracoda) in Saline Rivers of the Lake Elton Basin: Abundance, Biomass, Production, Fatty Acids
Колич.характеристики :16 с
Коллективы : Russian Foundation for Basic Research (RFBR)Russian Foundation for Basic Research (RFBR) [13-04-00740, 15-04-03341, 17-04-00135]; Russian FederationRussian Federation [51.1.1]; Ministry of Science and Higher Education of the Russian Federation [FSRZ-2020-0006]
Место публикации : Zool. Stud.: BIODIVERSITY RESEARCH CENTER, ACAD SINICA, 2021. - Vol. 60. - Ст.53. - ISSN 1021-5506, DOI 10.6620/ZS.2021.60-53. - ISSN 1810-522X(eISSN)
Примечания : Cited References:84. - This research was performed in the framework of State Assignments No. 121051100109-1 and AAAA-A17-117112040039-7, and it was also supported by the grants from Russian Foundation for Basic Research (RFBR) (projects numbers 13-04-00740, 15-04-03341, 17-04-00135), State Assignment within the framework of the basic research program of the Russian Federation (topic No. 51.1.1), State Assignment of the Ministry of Science and Higher Education of the Russian Federation to Siberian Federal University in 2020 (project No. FSRZ-2020-0006 "Biologically active substances in environmental, biotechnological and medical systems"). The authors are grateful to Elena Krasova for linguistic check and improvements of the manuscript. We would also like to thank two anonymous reviewers for their constructive comments, recommendations as well as extra corrections of the paper's language and style.
Предметные рубрики: JONES 1850 CRUSTACEA
MACROZOOBENTHIC COMMUNITIES
INVERTEBRATES
Аннотация: Saline rivers are highly productive ecosystems in arid regions. The meiobenthic community (bottom meiofauna) and its dominant representatives are one of the least studied components of these aquatic ecosystems. Ostracods Cyprideis torosa and Heterocypris salina are major consumers among the species of bottom meiofauna in saline rivers flowing into the hyperhaline Lake Elton (Volgograd Region, Russia). We estimated the abundance, biomass and production of C. torosa, the dominant species at the mouth of the polyhaline Chernavka River (average salinity is similar to 30 g l(-1)), and H. salina, the dominant species at the mouth of the mesohaline Bolshaya Samoroda River (similar to 13 g l(-1)), in spring (May) and summer (August). Additionally, we studied the composition and content of fatty acids of the ostracods and their potential food sources (bottom sediments with bacterial-algal mats). We found that the abundance and biomass (wet weight with shells) of C. torosa in the Chernavka River and H. salina in the Bolshaya Samoroda River reached 3.5 x 10(6) ind. m(-2) and 117 g m(-2), and 1.1 x 10(5) ind. m(-2) and 12 g m(-2), respectively. The first species formed on average about 85% of the total abundance and 96% of the total biomass of the meiobenthos, and the second one, about 13% and 31%, respectively. The daily production of C. torosa and H. salina can reach 249 and 36 mg m(-2) ash-free dry weight, respectively. The results indicate that these species may play an important role in the total flow of matter and energy in the studied habitats. Based on the fatty acid (FA) composition of the ostracods and their food sources, it was found that C. torosa mainly consumed diatoms, while H. salina preferred bacteria, cyanobacteria, and green algae. Differences between the species were greater than differences between the bottom sediments from the rivers. It may mean that the ostracods selectively consumed different food items that may be related to the different nutrient requirements of the species. Seasonal changes in the FA compositions of the ostracods were higher than in their food sources (bottom sediments), which also indicates selective feeding of the species.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Diaz-De-Quijano D., Vladimirovich Ageev A., Anatolevna Ivanova E., Valerevna Anishchenko O.
Заглавие : Winter atmospheric nutrient and pollutant deposition on Western Sayan Mountain lakes (Siberia)
Место публикации : Biogeosciences: Copernicus GmbH, 2021. - Vol. 18, Is. 5. - С. 1601-1618. - ISSN 17264170 (ISSN), DOI 10.5194/bg-18-1601-2021
Аннотация: The world map of anthropogenic atmospheric nitrogen deposition and its effects on natural ecosystems is not described with equal precision everywhere. In this paper, we report atmospheric nutrient, sulfate and spheroidal carbonaceous particle (SCP) deposition rates, based on snowpack analyses of a formerly unexplored Siberian mountain region. Then, we discuss their potential effects on lake phytoplankton biomass limitation. We estimate that the nutrient depositions observed in the late-season snowpack (4016 mgNO3-Nm2 and 0.580.13 mg TP-Pm2; TP for total phosphorous) would correspond to yearly depositions lower than 11971 mgNO3-Nm2 yr1 and higher than 1.710.91 mg TP-Pm2 yr1. These yearly deposition estimates would approximately fit the predictions of global deposition models and correspond to the very low nutrient deposition range, although they are still higher than world background values. In spite of the fact that such a low atmospheric nitrogen deposition rate would be enough to induce nitrogen limitation in unproductive mountain lakes, phosphorus deposition was also extremely low, and the resulting lake water N: P ratio was unaffected by atmospheric nutrient deposition. In the end, the studied lakes' phytoplankton appeared to be split between phosphorus and nitrogen limitation. We conclude that these pristine lakes are fragile sensitive systems exposed to the predicted climate warming, increased winter precipitation, enhanced forest fires and shifts in anthropogenic nitrogen emissions that could finally couple their water chemistry to that of atmospheric nutrient deposition and unlock temperature-inhibited responses of phytoplankton to nutrient shifts. © Author(s) 2021. This work is distributed under the Creative Commons Attribution 4.0 License.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Sushchik N. N., Borisova E. V., Demina (Vitkovskaya) I. A., Makhutova O. N., Gladyshev M. I.
Заглавие : Differences in Fatty Acid Composition between Orb-Weaver Spiders Inhabiting a Riparian Zone and a Steppe Are Associated with the Consumption of Different Chironomid Taxa
Место публикации : Doklad. Biochem. Biophys.: Pleiades journals, 2021. - Vol. 496, Is. 1. - С. 40-43. - ISSN 16076729 (ISSN), DOI 10.1134/S1607672921010117
Аннотация: Abstract: Amphibiotic insects, chironomids of the genera Glyptotendipes and Chironomus, which emerged from saline Lake Shira, differed in composition and content of fatty acids, including the essential eicosapentaenoic acid (20:5n-3, EPA), and upon flying out they were concentrated in different territories, the riparian zone and remote arid steppe zone, respectively. Potential consumers of chironomids adults, the orb-weaver spiders Larinoidessuspicax, which inhabited both zones, also differed in fatty acid composition. The main difference in their biochemical composition was a significantly higher level of EPA in spiders from the riparian zone that likely to be explained by consumption of the Glyptotendipes adults enriched in this fatty acid and concentrated only within this zone. The higher level of EPA, which is deficient in terrestrial ecosystems, in orb-weaver spiders from the riparian zone of the saline lake may potentially promote a successful survival of the consumers in the arid landscape. © 2021, Pleiades Publishing, Ltd.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Lopatina T., Anishchenko O., Oskina N., Zadereev E.
Заглавие : Threshold concentrations of the road salt for adverse effects on females and resting eggs of cladoceran Moina macrocopa
Место публикации : Aquatic Ecol.: Springer Science and Business Media B.V., 2021. - Article in press. - ISSN 13862588 (ISSN), DOI 10.1007/s10452-021-09830-z
Аннотация: The salinization of freshwaters due to the use of deicing road salts is a serious anthropogenic threat. We investigated the effects of the road deicer, which is mostly composed (ca. 70%) of NaCl, on the life cycle parameters of the cladoceran Moina macrocopa in acute and chronic toxicity tests and on the hatching success of resting eggs exposed to sediments contaminated with the road salt. The negative effects of the road salt on survival and life cycle parameters of animals were observed at concentrations above 5 g L?1. The 6-month exposure of resting eggs to contaminated sediments had a consistent but relatively weak effect on the postexposure hatching of resting eggs. Experiments demonstrated that the concentration of the deicer in the top water layer in the water-sediment systems is more important for the hatching success of resting eggs than the salt content in the sediment. Only 2.2 ± 1.9% of resting eggs hatched when the deicer content in the top water layer was equal to 12 g L?1. Lethal effects on hatchlings were observed starting from the deicer content in the water equal to 1 g L?1, and 97.0 ± 0.8% of hatchlings were dead at the deicer content in the water equal to 5 g L?1. Thus, the resilience of resting eggs to the contaminated sediments can ensure the replenishment of the population from the egg bank after the salinity disturbance is diminished but the negative effects of the elevated salt content in surface waters on active population will be manifested at lower salinities. © 2021, The Author(s), under exclusive licence to Springer Nature B.V. part of Springer Nature.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Feniova, Irina Yu, Karpowicz, Maciej, Gladyshev, Michail I., Sushchik, Nadezhda N., Petrosyan, Varos G., Sakharova, Ekaterina G., Dzialowski, Andrew R.
Заглавие : Effects of Macrobiota on the Transfer Efficiency of Essential Elements and Fatty Acids From Phytoplankton to Zooplankton Under Eutrophic Conditions
Колич.характеристики :15 с
Коллективы : Polish National Science Centre [2016/21/B/NZ8/00434]; Russian Science FoundationRussian Science Foundation (RSF) [21-14-00123]; Federal Tasks for Institute of Biophysics SB RAS [51.1.1]; Federal Tasks for Siberian Federal University [FSRG-2020-0019]; Polish National Agency for Academic ExchangePolish National Agency for Academic Exchange (NAWA) [PPN/ULM/2020/1/00258/U/DRAFT/00001]
Место публикации : Front. Environ. Sci.: FRONTIERS MEDIA SA, 2021. - Vol. 9. - Ст.739014. - ISSN 2296-665X(eISSN), DOI 10.3389/fenvs.2021.739014
Примечания : Cited References:76. - This experiment was performed with support from the Polish National Science Centre (2016/21/B/NZ8/00434). The statistical analysis and its interpretation was performed with support from the Russian Science Foundation (Grant No. 21-14-00123). Biochemical analyses were performed with support by Federal Tasks for Institute of Biophysics SB RAS No. 51.1.1 and Federal Tasks for Siberian Federal University No. FSRG-2020-0019. The preparation of the manuscript by Feniova I. was supported by the Polish National Agency for Academic Exchange (Agreement No. PPN/ULM/2020/1/00258/U/DRAFT/00001).
Предметные рубрики: FRESH-WATER ZOOPLANKTON
DAPHNIA-LONGISPINA
ZEBRA MUSSELS
Аннотация: The transfer pathways of organic matter and elements from phytoplankton to zooplankton in freshwater ecosystems are important for understanding how aquatic ecosystems function. We conducted a mesocosm experiment to determine how fish and zebra mussels altered the transfer efficiencies of essential substances including carbon (C), polyunsaturated fatty acids (PUFAs), total fatty acids (FAs), phosphorus (P), and nitrogen (N) from phytoplankton to zooplankton. We assessed the transfer efficiencies of the essential substances from phytoplankton to zooplankton as the ratio of their zooplankton production (P) per unit of biomass (B) to that of phytoplankton to exclude grazing or predation effects. We hypothesized that zebra mussels and fish would affect the transfer of materials from phytoplankton to zooplankton by altering the contents of essential elements and FAs in phytoplankton and zooplankton communities and/or due to shifts in the planktonic community structure mediated by grazing and/or predation. Fish increased the transfer efficiencies of eicosapentaenoic acid 20:5 omega-3 (EPA), docosahexaenoic acid 22:6 omega-3 (DHA), and P relative to the control. We speculated that fish weakened the control of zooplankton over algal assemblage by selectively feeding on larger cladocerans such as Daphnia. Therefore, fish can increase the relative proportion of high-quality food for zooplankton, improving food conditions for the available zooplankton. In contrast, zebra mussels reduced the transfer efficiencies of EPA and DHA relative to the control treatment likely due to competition with zooplankton for PUFA-rich food particles. However, zebra mussels did not have any impact on the transfer efficiencies of C, total FAs, N, and P. EPA, DHA, and P were transferred more efficiently than C from phytoplankton to zooplankton, while total FAs, which are commonly used as an energetic source, were transferred as efficiently as C. The enrichment of consumers with the most important substances relative to their basal food sources creates the potential for the successful transport of these substances across aquatic trophic webs./p
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Neubauer, Darshan, Kolmakova, Olesya, Woodhouse, Jason, Taube, Robert, Mangelsdorf, Kai, Gladyshev, Michail, Premke, Katrin, Grossart, Hans-Peter
Заглавие : Zooplankton carcasses stimulate microbial turnover of allochthonous particulate organic matter
Колич.характеристики :16 с
Коллективы : Projekt DEAL
Место публикации : ISME J.: SPRINGERNATURE, 2021. - Article in press. - ISSN 1751-7362, DOI 10.1038/s41396-020-00883-w. - ISSN 1751-7370(eISSN)
Примечания : Cited References:83. - Open Access funding enabled and organized by Projekt DEAL.
Предметные рубрики: FRESH-WATER
SEASONAL-CHANGES
CARBON
LAKE
DECOMPOSITION
DEGRADATION
Аннотация: Carbon turnover in aquatic environments is dependent on biochemical properties of organic matter (OM) and its degradability by the surrounding microbial community. Non-additive interactive effects represent a mechanism where the degradation of biochemically persistent OM is stimulated by the provision of bioavailable OM to the degrading microbial community. Whilst this is well established in terrestrial systems, whether it occurs in aquatic ecosystems remains subject to debate. We hypothesised that OM from zooplankton carcasses can stimulate the degradation of biochemically persistent leaf material, and that this effect is influenced by the daphnia:leaf OM ratio and the complexity of the degrading microbial community. Fresh Daphnia magna carcasses and C-13-labelled maize leaves (Zea mays) were incubated at different ratios (1:1, 1:3 and 1:5) alongside either a complex microbial community (50 mu m) or solely bacteria (0.8 mu m). C-13 stable-isotope measurements of CO2 analyses were combined with phospholipid fatty acids (PLFA) analysis and DNA sequencing to link metabolic activities, biomass and taxonomic composition of the microbial community. Our experiments indicated a significantly higher respiration of leaf-derived C when daphnia-derived OM was most abundant (i.e. daphnia:leaf OM ratio of 1:1). This process was stronger in a complex microbial community, including eukaryotic microorganisms, than a solely bacterial community. We concluded that non-additive interactive effects were a function of increased C-N chemodiversity and microbial complexity, with the highest net respiration to be expected when chemodiversity is high and the degrading community complex. This study indicates that identifying the interactions and processes of OM degradation is one important key for a deeper understanding of aquatic and thus global carbon cycle.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Pavlova A. M., Gaevskii N. A., Anishchenko O. V., Tikhomirova N. A., Tikhomirov A. A.
Заглавие : Influence of NaCl on Productivity and Fluorescence Parameters of Nasturtium officinale R. Br. and Its Relevance to Artificial Closed Ecosystems
Колич.характеристики :13 с
Коллективы : fundamental research program of the Russian Academy of SciencesRussian Academy of Sciences [56.1.4]
Место публикации : Russ. J. Plant Physiol.: PLEIADES PUBLISHING INC, 2021. - Vol. 68, Is. 6. - С. 1173-1185. - ISSN 1021-4437, DOI 10.1134/S1021443721050137. - ISSN 1608-3407(eISSN)
Примечания : Cited References:27. - This work was supported by the fundamental research program of the Russian Academy of Sciences for 2013-2020, project no. 56.1.4 Sustainability of Higher Plant Cenoses Grown on Nutrient Media with Mineralized Organic Waste in Closed Human-Inhabited Ecological Systems.
Предметные рубрики: CHLOROPHYLL FLUORESCENCE
SALT STRESS
TOLERANCE
PHOTOSYNTHESIS
Аннотация: Productivity values, sodium accumulation in aboveground biomass, and photosynthetic indices of watercress (Nasturtium officinale) leaves were investigated under conditions resembling artificial closed ecological systems (CES). The seedlings were grown on nutrient media with various NaCl concentrations (0.7, 1.4, and 1.8 g/L) for 7, 14, and 19 days after transferring them to saline solutions. The productivity of plants on the seventh day of their growth on saline media did not differ from that of control plants. The decrease in plant productivity was noted in all the treatments starting from the 14th day after transferring the plants to saline solutions. When NaCl concentration in the nutrient solution was raised from 0.7 to 1.8 g/L, a significant increase in relative Na+ content in plant tissues was observed, regardless of the duration of NaCl treatment. A substantial decrease in chlorophyll (a + b) to carotenoid content ratio was noted on the seventh and 14th days in plants grown at 1.8 g/L NaCl. In plants treated for 7 days with 0.7 and 1.4 g/L NaCl, the content of chlorophylls a and b and carotenoids was found to increase, which indicates the tolerance of N. officinale to CES conditions. The relative content of chlorophylls a and b in the light-harvesting chlorophyll (a + b) complex was independent of the extent of salinity. The maximum quantum yield of photosystem II reaction in N. officinale plants had typically high values (Y(II)(max) of 0.755 +/- 0.007). Using the Imaging Maxi version of the pulse amplitude-modulated (PAM) fluorometer, it was found that light curves for the effective quantum yield of photochemical and nonphotochemical fluorescence quenching (Y(II) and Y(NPQ), respectively) differed appreciably between the salt-treated and untreated plants in the case of long-term cultivation (19 days) at 0.7 and 1.4 g/L NaCl. The treatment with 1.8 g/L NaCl for the period from 14 to 19 days had no effect on light curves of Y(II) and Y(NPQ). It is argued that N. officinale can be used as a source of NaCl for humans under CES conditions.
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10.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Diaz A. V., Ageev, Aleksander Vladimirovich, Ivanova, Elena Anatolevna, Anishchenko, Olesia Valerevna
Заглавие : Winter atmospheric nutrient and pollutant deposition on Western Sayan Mountain lakes (Siberia)
Колич.характеристики :18 с
Коллективы : Russian Foundation for Basic ResearchRussian Foundation for Basic Research (RFBR) [20-04-00960]; Ministry of Science and Higher Education of the Russian Federation [5-100, FSRZ-2020-0014]
Место публикации : Biogeosciences: COPERNICUS GESELLSCHAFT MBH, 2021. - Vol. 18, Is. 5. - С. 1601-1618. - ISSN 1726-4170, DOI 10.5194/bg-18-1601-2021. - ISSN 1726-4189(eISSN)
Примечания : Cited References:86. - This research has been supported by the Russian Foundation for Basic Research (grant no. 20-04-00960) and the Ministry of Science and Higher Education of the Russian Federation (postdoctoral program project no. 5-100, grant no. FSRZ-2020-0014).
Предметные рубрики: FLY-ASH PARTICLES
NITROGEN DEPOSITION
PHOSPHORUS DEPOSITION
Аннотация: The world map of anthropogenic atmospheric nitrogen deposition and its effects on natural ecosystems is not described with equal precision everywhere. In this paper, we report atmospheric nutrient, sulfate and spheroidal carbonaceous particle (SCP) deposition rates, based on snowpack analyses of a formerly unexplored Siberian mountain region. Then, we discuss their potential effects on lake phytoplankton biomass limitation. We estimate that the nutrient depositions observed in the late-season snowpack (40 +/- 16 mgNO(3)-Nm(-2) and 0.58 +/- 0.13 mg TP-Pm-2; TP for total phosphorous) would correspond to yearly depositions lower than 119 +/- 71 mgNO(3)-Nm(-2) yr(-1) and higher than 1.71 +/- 0.91 mg TP-Pm-2 yr(-1). These yearly deposition estimates would approximately fit the predictions of global deposition models and correspond to the very low nutrient deposition range, although they are still higher than world background values. In spite of the fact that such a low atmospheric nitrogen deposition rate would be enough to induce nitrogen limitation in unproductive mountain lakes, phosphorus deposition was also extremely low, and the resulting lake water N: P ratio was unaffected by atmospheric nutrient deposition. In the end, the studied lakes' phytoplankton appeared to be split between phosphorus and nitrogen limitation. We conclude that these pristine lakes are fragile sensitive systems exposed to the predicted climate warming, increased winter precipitation, enhanced forest fires and shifts in anthropogenic nitrogen emissions that could finally couple their water chemistry to that of atmospheric nutrient deposition and unlock temperature-inhibited responses of phytoplankton to nutrient shifts.
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11.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Kalyabina V. P., Esimbekova E. N., Kopylova K. V., Kratasyuk V. A.
Заглавие : Pesticides: formulants, distribution pathways and effects on human health – a review
Место публикации : Toxicol. Rep.: Elsevier Inc., 2021. - Vol. 8. - С. 1179-1192. - ISSN 22147500 (ISSN), DOI 10.1016/j.toxrep.2021.06.004
Аннотация: Pesticides are commonly used in agriculture to enhance crop production and control pests. Therefore, pesticide residues can persist in the environment and agricultural crops. Although modern formulations are relatively safe to non-target species, numerous theoretical and experimental data demonstrate that pesticide residues can produce long-term negative effects on the health of humans and animals and stability of ecosystems. Of particular interest are molecular mechanisms that mediate the start of a cascade of adverse effects. This is a review of the latest literature data on the effects and consequences of contamination of agricultural crops by pesticide residues. In addition, we address the issue of implicit risks associated with pesticide formulations. The effects of pesticides are considered in the context of the Adverse Outcome Pathway concept. © 2021 The Author(s)
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12.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Kravchuk E. S., Kotovshchikov A. V., Ivanova E. A.
Заглавие : Phytoplankton and Phytoperiphyton Characteristics of Lake Pyasino and Its Tributaries after an Accidental Fuel Spill in 2020
Колич.характеристики :12 с
Коллективы : Siberian Branch of the Russian Academy of SciencesRussian Academy of Sciences [223-EP-2020/07]
Место публикации : Contemp. Probl. Ecol.: MAIK NAUKA/INTERPERIODICA/SPRINGER, 2021. - Vol. 14, Is. 4. - С. 368-379. - ISSN 1995-4255, DOI 10.1134/S1995425521040065. - ISSN 1995-4263(eISSN)
Примечания : Cited References:30. - The study was supported by economic agreement no. 223-EP-2020/07 with the Siberian Branch of the Russian Academy of Sciences.
Предметные рубрики: OIL-SPILLS
Аннотация: An assessment of the species composition, abundance, biomass, and pigment characteristics of phytoperiphyton and phytoplankton of Lake Pyasino, its tributaries (Bezymyannyi Stream, Daldykan, Ambarnaya, and Norilskaya rivers), and the head of the Pyasina River has been carried out after a manmade accident (a diesel-fuel spill near the city of Norilsk in May 2020). A significant decline in the biomass and changes in the species composition of phytoperiphyton after the water was contaminated by fuel is revealed only near the spillage site (in the Daldykan River and the Ambarnaya River downstream the mouth of the Daldykan). Downstream, in the Ambarnaya mouth zone, as a response to the release of a large amount of nutrients during the decomposition of fuel products and dead organisms, as well as the mechanical cleaning of the bank line, there has been a massive growth of diatom and green algae (Tabularia tabulata, Spirogyra sp.) in the water column and the appearance of indicators of organic pollution (Euglenophyceae and Cryptophyceae). No significant changes in the plankton of Lake Pyasino and the Pyasina River in comparison with the data obtained in the second half of the 20th century (i.e., long before the accident) are found. Species composition and quantitative features, as well as amount and ratio of pigments, characterized the phytoplankton and phytoperiphyton of Lake Pyasino and the Pyasina River as a normally functioning freshwater community of oligotrophic waters. All this indicates the absence of a negative impact of the accidental fuel spill on the ecosystem of Lake Pyasino and the Pyasina River.
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13.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Pilla R. M., Mette E. M., Williamson C. E., Adamovich B. V., Adrian R., Anneville O., Balseiro E., Ban S., Chandra S., Colom-Montero W., Devlin S. P., Dix M. A., Dokulil M. T., Feldsine N. A., Feuchtmayr H., Fogarty N. K., Gaiser E. E., Girdner S. F., Gonzalez M. J., Hambright K. D., Hamilton D. P., Havens K., Hessen D. O., Hetzenauer H., Higgins S. N., Huttula T. H., Huuskonen H., Isles P. D.F., Joehnk K. D., Keller W. B., Klug J., Knoll L. B., Korhonen J., Korovchinsky N. M., Koster O., Kraemer B. M., Leavitt P. R., Leoni B., Lepori F., Lepskaya E. V., Lottig N. R., Luger M. S., Maberly S. C., MacIntyre S., McBride C., McIntyre P., Melles S. J., Modenutti B., Muller-Navarra D. C., Pacholski L., Paterson A. M., Pierson D. C., Pislegina H. V., Plisnier P. -D., Richardson D. C., Rimmer A., Rogora M., Rogozin D. Y., Rusak J. A., Rusanovskaya O. O., Sadro S., Salmaso N., Saros J. E., Sarvala J., Saulnier-Talbot E., Schindler D. E., Shimaraeva S. V., Silow E. A., Sitoki L. M., Sommaruga R., Straile D., Strock K. E., Swain H., Tallant J. M., Thiery W., Timofeyev M. A., Tolomeev A. P., Tominaga K., Vanni M. J., Verburg P., Vinebrooke R. D., Wanzenbock J., Weathers K., Weyhenmeyer G. A., Zadereev E. S., Zhukova T. V.
Заглавие : Global data set of long-term summertime vertical temperature profiles in 153 lakes
Место публикации : Sci. Data: Nature Research, 2021. - Vol. 8, Is. 1. - Ст.200. - ISSN 20524463 (ISSN), DOI 10.1038/s41597-021-00983-y
Аннотация: Climate change and other anthropogenic stressors have led to long-term changes in the thermal structure, including surface temperatures, deepwater temperatures, and vertical thermal gradients, in many lakes around the world. Though many studies highlight warming of surface water temperatures in lakes worldwide, less is known about long-term trends in full vertical thermal structure and deepwater temperatures, which have been changing less consistently in both direction and magnitude. Here, we present a globally-expansive data set of summertime in-situ vertical temperature profiles from 153 lakes, with one time series beginning as early as 1894. We also compiled lake geographic, morphometric, and water quality variables that can influence vertical thermal structure through a variety of potential mechanisms in these lakes. These long-term time series of vertical temperature profiles and corresponding lake characteristics serve as valuable data to help understand changes and drivers of lake thermal structure in a time of rapid global and ecological change. © 2021, The Author(s).
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14.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Kolosova E. M., Sutormin O. S., Stepanova L. V., Shpedt A. A., Rimatskaya N. V., Sukovataya I. E., Kratasyuk V. A.
Заглавие : Bioluminescent enzyme inhibition-based assay for the prediction of toxicity of pollutants in urban soils
Место публикации : Environ. Technol. Innov.: Elsevier B.V., 2021. - Vol. 24. - Ст.101842. - ISSN 23521864 (ISSN), DOI 10.1016/j.eti.2021.101842
Аннотация: There is a need for rapid simple and informative environmental assessment methods. The present investigation is aimed at assessing the possibility of using the combined enzyme system of luminescent bacteria: NAD(P)H:FMN-oxidoreductase + luciferase (Red + Luc) for predicting the potential toxicity of industrial urbostratozems sampled in the city of Krasnoyarsk. Three groups of urbostratozems polluted with fluorine, arsenic and lead, were tested by the methods of chemical analysis and enzymatic bioassay. Only the assessment of the arsenic-contaminated soil samples showed the dependence between the reduced activity of the enzyme system and the arsenic concentration variations. The results reveal that the sensitivity of the Red + Luc enzyme system to the soil pollutants depends on the properties of the studied soil samples. Moreover, the solubility of lead in the soil samples affects the accuracy of the enzymatic bioassays for soil toxicity testing. The results of the enzymatic bioassay of the fluoride-contaminated soil samples are ambiguous. The obtained data show the relevance of the sample preparation during integral bioassays. In addition, soil properties should be taken into account as well. The current study emphasizes the importance of conducting chemical and biological testing as a combined set to obtain comprehensive information about the anthropogenic load. © 2021 Elsevier B.V.
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15.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Chertoprud M. V., Krylenko S. V., Lukinych A. I., Glazov P. M., Dubovskaya O. P., Chertoprud E. S.
Заглавие : Specific Features of the Macrozoobenthic Communities of Small Arctic Lakes in Eurasia
Колич.характеристики :14 с
Коллективы : Russian Foundation for Basic ResearchRussian Foundation for Basic Research (RFBR) [20-04-00145]; Meeresenten project (Bundesamt fur Naturschutz, BfN) [100308472]; Federal Agency for Nature Protection of Germany (Conservation Bundesamtfur Naturschutz, BfN), grant MEERESENTEN [3516821500]; Norwegian Institute for Nature Research (NINA); Research Council of NorwayResearch Council of Norway [227024, 246726]; Basic Research Program of the Russian Federation [51.1.1]; Ministry of Science and Higher Education of the Russian Federation to the Siberian Federal University [FSRZ-2020-0006]; [AAAA-A19119021990093-8]
Место публикации : Inland Water Biol.: MAIK NAUKA/INTERPERIODICA/SPRINGER, 2021. - Vol. 14, Is. 4. - С. 401-414. - ISSN 1995-0829, DOI 10.1134/S1995082921030056. - ISSN 1995-0837(eISSN)
Примечания : Cited References:58. - The primary processing of the material and statistical analysis of the data were carried out with financial support from the Russian Foundation for Basic Research (project No. 20-04-00145). Field works on Kolguev Island were sup-ported by the Meeresenten project (Bundesamt fur Naturschutz, BfN; online ID 100308472), the Federal Agency for Nature Protection of Germany (Conservation Bundesamtfur Naturschutz, BfN), grant MEERESENTEN (3516821500), and State assignment.AAAA-A19119021990093-8; works on Svalbard were funded by the Norwegian Institute for Nature Research (NINA) and Research Council of Norway, projects no. 227024 and 246726. Research on the Putorana Plateau was supported by a state task as part of the Basic Research Program of the Russian Federation, topic no. 51.1.1, and the State Assignment of the Ministry of Science and Higher Education of the Russian Federation to the Siberian Federal University, project no. FSRZ-2020-0006.
Предметные рубрики: WATER BODIES
ECOSYSTEMS
ZOOBENTHOS
RECOVERY
SVALBARD
IMPACT
PONDS
Аннотация: The taxonomic structure, typology, species richness, and total abundance of bentic and littoral macroinvertebrate communities from small lakes of the Arctic and Subarctic zones are considered on the basis of original data from three northern Palearctic regions (the foot of the Putorana Plateau, Kolguev Island, and Western Svalbard Island). A comparative analysis of the communities of these regions has been carried out. The features of High Arctic insular, Low Arctic, subarctic, and boreal lake communities are discussed using a large volume of literature data. The complex pattern of changes in the total benthos biomass of small lakes has been revealed: it decreases in the subarctic taiga, increases in the hypoarctic tundra, and decreases again in the High Arctic.
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16.

Вид документа : Статья из сборника (выпуск продолж. издания)
Шифр издания :
Автор(ы) : Kiselev E. G., Zhila N. O., Volova T. G.
Заглавие : Biodegradable polymers - Perspectives and applications in agriculture
Место публикации : IOP Conference Series: Earth and Environmental Science: IOP Publishing Ltd, 2021. - Vol. 689: 2020 International Conference on Germany and Russia: Ecosystems Without Borders, EcoSystConfKlgtu 2020 (5 October 2020 through 10 October 2020, ) Conference code: 167944, Is. 1. - Ст.012036. - , DOI 10.1088/1755-1315/689/1/012036
Аннотация: The paper presents a brief overview of the results of the implementation of the project "Agropreparations of the new generation: a strategy of construction and realization". The first part contains the analysis of the growth of the wild-type strain Cupriavidus necator B-10646 (formerly eutrophus) and the synthesis of polyhydroxyalkanoates by this strain on various substrates: glycerol, palm oil, Siberian oil seed, sunflower seed oils, and oleic acid. On refined glycerin, a highly productive process is implemented when scaling up, allowing to obtain 128 ± 11 g / L PHA. Evaluation of oils has shown that palm oil is the best carbon substrate. The second part presents the results of the development of environmentally friendly slow-release pesticide formulations. They are a degradable matrix of poly-3-hydroxybutyrate mixed with natural materials (peat, clay, wood flour), into which a pesticide (metribuzin, tribenuron-methyl, fenoxaprop-P-ethyl, azoxystrobin, epoxiconazole, and tebuconazole) has been. The developed preparations showed high activity against pathogenic fungi and weeds and had a much weaker negative effect on the soil microflora. Studies of the degradation of the developed preparations and the release of pesticides into the soil confirm their effectiveness over a long period of time, up to 90 days. © Published under licence by IOP Publishing Ltd.
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17.

18.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Kalyabina, Valeriya P., Esimbekova, Elena N., Kopylova, Kseniya, V, Kratasyuk, Valentina A.
Заглавие : Pesticides: formulants, distribution pathways and effects on human health-a review
Колич.характеристики :14 с
Коллективы : Government of Krasnoyarsk Territory, Krasnoyarsk Regional Fund of Science; Russian Foundation for Basic ResearchRussian Foundation for Basic Research (RFBR) [20-44-242001]
Место публикации : Toxicol. Rep.: ELSEVIER, 2021. - Vol. 8. - С. 1179-1192. - ISSN 2214-7500(eISSN), DOI 10.1016/j.toxrep.2021.06.004
Примечания : Cited References:211. - The research was funding by the Government of Krasnoyarsk Territory, Krasnoyarsk Regional Fund of Science and Russian Foundation for Basic Research (project No 20-44-242001).
Предметные рубрики: GLYPHOSATE-BASED HERBICIDES
ENDOCRINE-DISRUPTING CHEMICALS
IN-VITRO
Аннотация: Pesticides are commonly used in agriculture to enhance crop production and control pests. Therefore, pesticide residues can persist in the environment and agricultural crops. Although modern formulations are relatively safe to non-target species, numerous theoretical and experimental data demonstrate that pesticide residues can produce long-term negative effects on the health of humans and animals and stability of ecosystems. Of particular interest are molecular mechanisms that mediate the start of a cascade of adverse effects. This is a review of the latest literature data on the effects and consequences of contamination of agricultural crops by pesticide residues. In addition, we address the issue of implicit risks associated with pesticide formulations. The effects of pesticides are considered in the context of the Adverse Outcome Pathway concept.
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19.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Sushchik N. N., Borisova, E., V, Demina I. A., Makhutova O. N., Gladyshev, M., I
Заглавие : Differences in Fatty Acid Composition between Orb-Weaver Spiders Inhabiting a Riparian Zone and a Steppe Are Associated with the Consumption of Different Chironomid Taxa
Колич.характеристики :4 с
Коллективы : Russian Foundation for Basic ResearchRussian Foundation for Basic Research (RFBR) [19-34-90099, 20-0400346a]; Russian FederationRussian Federation [51.1.1, FSRZ-2020-0006]
Место публикации : Dokl. Biochem. Biophys.: MAIK NAUKA/INTERPERIODICA/SPRINGER, 2021. - Vol. 496, Is. 1. - С. 40-43. - ISSN 1607-6729, DOI 10.1134/S1607672921010117. - ISSN 1608-3091(eISSN)
Примечания : Cited References:13. - This work was supported by the Russian Foundation for Basic Research (project nos. 19-34-90099 and 20-0400346a) and state assignments within the framework of the fundamental research program of the Russian Federation (topics nos. 51.1.1 and FSRZ-2020-0006).
Аннотация: Amphibiotic insects, chironomids of the genera Glyptotendipes and Chironomus, which emerged from saline Lake Shira, differed in composition and content of fatty acids, including the essential eicosapentaenoic acid (20:5n-3, EPA), and upon flying out they were concentrated in different territories, the riparian zone and remote arid steppe zone, respectively. Potential consumers of chironomids adults, the orb-weaver spiders Larinoidessuspicax, which inhabited both zones, also differed in fatty acid composition. The main difference in their biochemical composition was a significantly higher level of EPA in spiders from the riparian zone that likely to be explained by consumption of the Glyptotendipes adults enriched in this fatty acid and concentrated only within this zone. The higher level of EPA, which is deficient in terrestrial ecosystems, in orb-weaver spiders from the riparian zone of the saline lake may potentially promote a successful survival of the consumers in the arid landscape.
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20.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Kolesnik, Olga V., Rozhko, Tatiana V., Lapina, Maria A., Solovyev, Vladislav S., Sachkova, Anna S., Kudryasheva, Nadezhda S.
Заглавие : Development of Cellular and Enzymatic Bioluminescent Assay Systems to Study Low-Dose Effects of Thorium
Колич.характеристики :13 с
Место публикации : Bioengineering-Basel: MDPI, 2021. - Vol. 8, Is. 12. - Ст.194. - ISSN 2306-5354(eISSN), DOI 10.3390/bioengineering8120194
Примечания : Cited References:77
Аннотация: Thorium is one of the most widespread radioactive elements in natural ecosystems, along with uranium, it is the most important source of nuclear energy. However, the effects of thorium on living organisms have not been thoroughly studied. Marine luminescent bacteria and their enzymes are optimal bioassays for studying low-dose thorium exposures. Luminescent bioassays provide a quantitative measure of toxicity and are characterized by high rates, sensitivity, and simplicity. It is known that the metabolic activity of bacteria is associated with the production of reactive oxygen species (ROS). We studied the effects of thorium-232 (10(-11)-10(-3) M) on Photobacterium phosphoreum and bacterial enzymatic reactions; kinetics of bacterial bioluminescence and ROS content were investigated in both systems. Bioluminescence activation was revealed under low-dose exposures (0.1 Gy) and discussed in terms of "radiation hormesis". The activation was accompanied by an intensification of the oxidation of a low-molecular reducer, NADH, during the enzymatic processes. Negative correlations were found between the intensity of bioluminescence and the content of ROS in bacteria and enzyme systems; an active role of ROS in the low-dose activation by thorium was discussed. The results contribute to radioecological potential of bioluminescence techniques adapted to study low-intensity radioactive exposures.
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