Библиотека института биофизики СО РАН

Главная

Базы данных

Труды сотрудников ИБФ СО РАН - результаты поиска

Вид поиска

Каталог книг и продолжающихся изданий библиотеки Института биофизики СО РАН

Иностранные журналы библиотеки Института биофизики СО РАН

Отечественные журналы библиотеки Института биофизики СО РАН

Каталог диссертаций ИБФ СО РАН

Труды сотрудников ИБФ СО РАН

Область поиска

в найденном

Найдено в других БД:

Каталог книг и продолжающихся изданий библиотеки Института биофизики СО РАН (1)

Каталог диссертаций ИБФ СО РАН (2)

Формат представления найденных документов:
полный	информационный	краткий

Отсортировать найденные документы по:
автору	заглавию	году издания	типу документа

Поисковый запрос: (<.>K=Daphnia<.>)

Общее количество найденных документов : 56
Показаны документы с 1 по 20

1-20 21-40 41-56

Effect of chemical interactions on the diapause induction in zooplankton [Text] / Y. S. Zadereev ; ed. Acad Sci, Kirensky Inst Phys, Siberian Div, Aka Gorodok, Krasnoyarsk 660036, Russia Russi // International Association of Theoretical and Applied Limnology, Vol 29, Pt 1, Proceedings. Ser. INTERNATIONAL ASSOCIATION OF THEORETICAL AND APPLIED LIMNOLOGY - PROCEEDINGS : E SCHWEIZERBART'SCHE VERLAGSBUCHHANDLUNG, 2005. - Vol. 29: 29th Congress of the International-Association-of-Theoretical-and-Applied-Limnology (AUG 08-14, 2004, Lahti, FINLAND). - P. 227-230. - Cited References: 24 . - ISBN 0368-0770. - ISBN 3-510-54065-4

РУБ Limnology
Рубрики:
PREDATOR-INDUCED DIAPAUSE
   BRACHIONUS-PLICATILIS
   DAPHNIA-MAGNA
   REPRODUCTION
   CLADOCERA
   REDUCTION
   CRUSTACEA
   DENSITY
   GROWTH
   PULEX
Кл.слова (ненормированные):
embryonic diapause -- density dependence -- predator avoidance -- chemical interactions

WOS
Держатели документа:
RAS, SB, Inst Biophys, Krasnoyarsk 660036, Russia
ИБФ СО РАН : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Zadereev, Y.S.; Russi, Acad Sci, Kirensky Inst Phys, Siberian Div, Aka Gorodok, Krasnoyarsk 660036, Russia \ed.\

Найти похожие

An in situ method for the investigation of vertical distributions of zooplankton in lakes: test of a two-compartment enclosure [Text] / A. P. Tolomeyev, Y. S. Zadereev // Aquat. Ecol. - 2005. - Vol. 39, Is. 2. - P. 181-188, DOI 10.1007/s10452-004-5732-0. - Cited References: 21 . - ISSN 1386-2588

РУБ Ecology + Limnology + Marine & Freshwater Biology
Рубрики:
MIGRATION
   DAPHNIA
   RADIATION
   COPEPODS
   EXPOSURE
   PATTERNS
   LIGHT
Кл.слова (ненормированные):
anoxic hypolimnion -- solar radiation -- stratified lake -- vertical migration -- zooplankton
Аннотация: Two-section enclosures were designed for the investigation of the effect of various physicochemical and biological factors on vertical distribution of zooplankton in situ. The framework of the enclosure was a cylindrical polyethylene column without any partitions inside, in which the isolation of animals in different sections after in situ exposure was achieved by pinching the flexible central part of the column. Enclosures were tested at the brackish stratified meromictic Lake Shira (Russia, Khakasia). The absence of fish and carnivorous zooplankton in the lake suggests that the vertical distribution of zooplankton is mainly determined by physicochemical gradients in the water column. Experiments and field observations demonstrated that all age and size groups of Arctodiaptomus salinus and Brachionus plicatilis strongly avoided surface layers during the daylight. The escape of zooplankton from the anoxic hypolimnion was less active. Statistically significant avoidance was observed only for copepodites C4-C5 and females of A. salinus. The relatively simple construction of the columns and easy handling during the experiment were the factors that favoured the use of this device to perform in situ basic tests of the effect of different factors on the vertical distribution of zooplankton.

WOS
Держатели документа:
SB RAS, Inst Biophys, Krasnoyarsk 660036, Russia
ИБФ СО РАН : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Tolomeyev, A.P.; Zadereev, Y.S.

Найти похожие

Seasonal dynamic of phototrophic epibionts on crustacean zooplankton in a eutrophic reservoir with cyanobacterial bloom [Text] / O. P. Dubovskaya [et al.] // Aquat. Ecol. - 2005. - Vol. 39, Is. 2. - P. 167-180, DOI 10.1007/s10452-004-5001-2. - Cited References: 26 . - ISSN 1386-2588

РУБ Ecology + Limnology + Marine & Freshwater Biology
Рубрики:
COMMUNITIES
HOST
ORGANIZATION
Кл.слова (ненормированные):
Characidiopsis ellipsoidea -- g. Colacium -- Cyclops vicinus -- Daphnia longispina -- eutrophic reservoir -- phototrophic epibionts
Аннотация: Seasonality of burden and prevalence of phototrophic (microalgal) epibionts Characidiopsis ellipsoidea, Colacium vesiculosum and Colacium sp. on dominating crustacean zooplankton (Daphnia longispina, Cyclops vicinus and Mesocyclops leuckarti) were studied in a small reservoir Bugach with cyanobacterial bloom. The correlations between the seasonal dynamics of prevalence and the dynamics of others biotic and abiotic factors were calculated. The conclusions were as follows. The substrate species, that determined the development of the epibionts on the three studied crustacean zooplankton, was Daphnia longispina (Cladocera). Despite intensive epibiotic infestation of crustacean zooplankton, epibionts did not appear to have caused non-consumptive mortality of the crustacean zooplankton. But they could have contributed to the Daphnia summer decline by increasing mortality due to its consumption by planktivorous fishes. The phototropic epibionts may successfully coexist with cyanobacterial bloom. The possible role of the epibionts in changing nutrient fluxes in pelagic food web is discussed.

WOS
Держатели документа:
SB RAS, Inst Biophys, Krasnoyarsk 660036, Russia
Krasnoyarsk State Univ, Krasnoyarsk 660041, Russia
Krasnoyarsk State Agr Univ, Krasnoyarsk 660049, Russia
ИБФ СО РАН : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Dubovskaya, O.P.; Klimova, E.P.; Kolmakov, V.I.; Gaevsky, N.A.; Ivanova, E.A.

Найти похожие

Fatty acid composition of Cladocera and Copepoda from lakes of contrasting temperature [Text] / M. I. Gladyshev [et al.] // Freshw. Biol. - 2015. - Vol. 60, Is. 2. - P373-386, DOI 10.1111/fwb.12499. - Cited References:88. - The work was supported by the project No. 6.1089.214/K of SiberianFederal University, carried out according to Federal Tasks of Ministryof Education and Science of Russian Federation, and partly supported bygrant of Russian Foundation for Basic Research (RFBR) No. 14-04-00087.We are grateful to Dr. G. Kirillin, Dr. H.-P. Grossart and Dr. P.Kasprzak for their kind help during sampling at Lake Stechlin and to Dr.M.A. Baturina for valuable assistance at Bolshezemelskaya tundra lakes. . - ISSN 0046-5070. - ISSN 1365-2427

РУБ Marine & Freshwater Biology
Рубрики:
FRESH-WATER ZOOPLANKTON
   SEASONAL DYNAMICS
   DAPHNIA-GALEATA
   TROPHIC
Кл.слова (ненормированные):
climate warming -- essential polyunsaturated fatty acids -- temperature -- adaptation -- zooplankton
Аннотация: We studied the fatty acid (FA) composition of six species of Cladocera and six species of Copepoda from five cold-water lakes, situated in the tundra and/or in the mountains, and eight species of Cladocera and four species of Copepoda from eight warm-water lakes (including one reservoir) in temperate regions. We asked whether the contrasting temperature would result primarily simply in changes in the percentages (i.e. percentage of total FAs) and absolute contents (quantities) of the long-chain polyunsaturated fatty acids (PUFAs), eicosapentaenoic acid (20:5n-3, EPA) and docosahexaenoic acid (22:6n-3, DHA), or whether there are other FAs with various number of double bonds and/or chain lengths which could be responsible for a putative homeoviscous adaptation. We also aimed to reveal any consistent phylogenetic differences in FA percentages and contents between Cladocera and Copepoda, separable from any temperature effects. Both taxa in warm waters had greater percentages of 18:0, and lower percentages of 14:0 and 18:4n-3, than in cold waters, but there were no differences in percentages of DHA. In addition, Cladocera, besides the lower percentage of EPA, had higher percentages of 20:0 and 22:0 in warm waters. These patterns in the percentages of 14:0, 18:0, 18:4n-3, 20:0 and 22:0 are in a good agreement with the hypothesis of homeoviscous adaptation. Thus, the role of EPA, and particularly DHA, as unique regulators of the homeoviscous adaptation of the zooplankton may have been overestimated. Overall, we confirmed the known differences between Cladocera and Copepoda, namely higher percentages of EPA in Cladocera and higher percentages of DHA in Copepoda. However, there was c.50% overlap in the ranges of the percentage of EPA in Cladocera and Copepoda, while the ranges in the content of EPA per unit organic carbon in Cladocera and Copepoda overlapped completely. Differences in the percentages and content of DHA between Cladocera and Copepoda were statistically significant and invariant with temperature, and therefore are probably due to phylogenetic factors, rather than any temperature adaptation. Contrasting temperature was not associated with significant differences in the contents of EPA and DHA per unit of organic carbon within the taxa studied. If this remained the case in a warming climate, such warming would be unlikely to reduce the accumulation of these important PUFAs in the zooplankton, at least if species composition was unchanged. However, if there were shifts in the proportions of Cladocera and Copepoda in the zooplankton, for example fewer copepods as temperature rises, a decrease of the flux of PUFA in the ecosystem is plausible, taking into account the phylogenetic (and temperature invariant) differences in DHA between the two groups.

WOS
Держатели документа:
Russian Acad Sci, Inst Biophys, Siberian Branch, Krasnoyarsk, Russia.
Siberian Fed Univ, Krasnoyarsk, Russia.
Natl Acad Sci Belarus Bioresources, Sci & Pract Ctr, Minsk, Byelarus.
Russian Acad Sci, Inst Biol, Komi Sci Ctr, Ural Div, Syktyvkar, Russia.
Russian Acad Sci, AN Severtsov Inst Ecol & Evolut, Moscow, Russia.
ИБФ СО РАН

Доп.точки доступа:
Gladyshev, Michail I.; Sushchik, Nadezhda N.; Dubovskaya, Olga P.; Buseva, Zhanna F.; Makhutova, Olesia N.; Fefilova, Elena B.; Feniova, Irina Y.; Semenchenko, Vitaliy P.; Kolmakova, Anzhelika A.; Kalachova, Galina S.; Siberian Federal University [6.1089.214/K]; Russian Foundation for BasicResearch (RFBR) [14-04-00087]

Найти похожие

Stable isotope fractionation of fatty acids of Daphnia fed laboratory cultures of microalgae / M. I. Gladyshev [et al.] // Limnologica. - 2016. - Vol. 56. - P23-29, DOI 10.1016/j.limno.2015.12.001 . - ISSN 0075-9511
Кл.слова (ненормированные):
Compound-specific isotope analysis -- Fatty acids -- Food webs -- Stable isotope fractionation -- comparative study -- crustacean -- fatty acid -- food web -- isotopic analysis -- isotopic fractionation -- microalga -- stable isotope -- Chlorella vulgaris -- Cryptomonas sp. -- Daphnia -- Daphnia galeata
Аннотация: We tested a comparatively new method of tracing of natural food webs, compound-specific isotope analysis (CSIA) of fatty acids (FA), using laboratory culture of Daphnia galeata fed Chlorella vulgaris and Cryptomonas sp. In general, Daphnia had significantly lighter carbon stable isotope composition of most fatty acids, including essential, than those of their food, microalgae. Thus, our results did not support the pivotal premise of the FA-CSIA application for food web analysis, i.e., transmitting the isotope 'signal' of essential FAs to consumers from their food without any modification. Moreover, the values of isotope fractionation of particular FAs in the consumer relative to its food were not constant, but varied from 1.35‰ to 7.04‰. The different isotope fractionation (depletion) values of diverse FAs in consumer were probably caused by different processes of their synthesis, catabolism and assimilation. More work is evidently to be done for correct interpretation of results of FA-CSIA during field studies for tracing of natural food webs. © 2015 Elsevier GmbH.

Scopus,
WOS
Держатели документа:
Institute of Biophysics of Siberian Branch of Russian Academy of Sciences, Akademgorodok, Krasnoyarsk, Russian Federation
Siberian Federal University, Svobodny av. 79, Krasnoyarsk, Russian Federation

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

Найти похожие

Experimental effects of large-bodied Daphnia, fish and zebra mussels on cladoceran community and size structure [Text] / I. Feniova [et al.] // J. Plankton Res. - 2015. - Vol. 37, Is. 3. - P611-625, DOI 10.1093/plankt/fbv022. - Cited References:66. - This research was supported by the Polish National Science Centre (2012/05/B/N28/02684). The work also was supported by grants of Belorussian Foundation for Basic Research ((sic)12P-98), Russian Foundation for Basic Research (14-04-00087), Siberian Federal University project, carried out according to Federal Tasks of Ministry of Education and Science of Russian Federation (6.1089.214/K) and by Russian Federal Tasks of Fundamental Research (51.1.1). . - ISSN 0142-7873. - ISSN 1464-3774

РУБ Marine & Freshwater Biology + Oceanography
Рубрики:
FRESH-WATER ZOOPLANKTON
POLYUNSATURATED FATTY-ACIDS
LAKE-ERIE
Кл.слова (ненормированные):
alien species -- large- and small-bodied cladocerans -- invasion mechanisms -- PUFA -- C:N:P ratios
Аннотация: Understanding the factors that regulate the abundance, size structure and community structure of cladocerans is an important goal of aquatic ecologists. While both top-down and bottom-up factors help to structure cladoceran communities, there may be interactions between these factors. We conducted a mesocosm study to determine how alien large-bodied Daphnia, zebra mussels and fish affected cladoceran community and size structure. We found that large-bodied Daphnia reduced algal resources and the fecundity of smaller bodied cladocerans. Fish removed the large-bodied Daphnia magna from the mesocosms and shifted the cladoceran community to a smaller body size. Fish also appeared to promote increases in cladoceran diversity through the coexistence of several smaller bodied taxa. In contrast, zebra mussels increased cyanobacteria and helped to promote the success of the alien Daphnia, but reduced the biomass of small-bodied cladocerans. Zebra mussels reduced the carbon (C):phosphorus (P) ratio of the phytoplankton in the mesocosms which may have favored the relatively P-limited Daphnia. Combined, our results highlight the complex interactions of multiple factors that help to regulate cladoceran community and size structure.

WOS,
Scopus
Держатели документа:
Russian Acad Sci, AN Severtsov Inst Ecol & Evolut, Moscow 119071, Russia.
Univ Warsaw, Biol & Chem Res Ctr, Inst Zool, Dept Hydrobiol, PL-02089 Warsaw, Poland.
Russian Acad Sci, Inst Biophys, Siberian Branch, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, Krasnoyarsk 660041, Russia.
Polish Acad Sci, M Nencki Inst Expt Biol, PL-02093 Warsaw, Poland.
Natl Acad Sci Belarus, Sci & Pract Ctr Bioresources, Minsk 220072, Byelarus.
Oklahoma State Univ, Dept Integrat Biol, Stillwater, OK 74078 USA.

Доп.точки доступа:
Feniova, Irina; Dawidowicz, Piotr; Gladyshev, Michail I.; Kostrzewska-Szlakowska, Iwona; Rzepecki, Marek; Razlutskij, Vladimir; Sushchik, Nadezda N.; Majsak, Natalia; Dzialowski, Andrew R.; Polish National Science Centre [2012/05/B/N28/02684]; Belorussian Foundation for Basic Research [(sic)12P-98]; Russian Foundation for Basic Research [14-04-00087]; Siberian Federal University project; Russian Federal Tasks of Fundamental Research [51.1.1]

Найти похожие

Assessment of the Volatility and Thermal Stability of Chemicals that Stimulate Females of Moina macrocopa (Cladocera) to Produce Diapausing Eggs [Text] / T. S. Lopatina, E. S. Zadereev // Russ. J. Ecol. - 2015. - Vol. 46, Is. 1. - P103-108, DOI 10.1134/S1067413615010105. - Cited References:25 . - ISSN 1067-4136. - ISSN 1608-3334

РУБ Ecology
Рубрики:
SEXUAL REPRODUCTION
   INDUCTION
   DAPHNIA
   METABOLITES
   CRUSTACEA
Кл.слова (ненормированные):
cladocerans -- diapause -- chemical communication -- chemical cues
Аннотация: The volatility and thermal stability of chemicals that are contained in the metabolic products of Moina macrocopa females that stimulate the production of diapausing eggs in these females have been studied in experiments with separately cultivated individuals. It has been shown that the gametogenesis-stimulating chemicals in this species are nonvolatile compounds: the effect of the medium that contains the metabolic products of the organism was not decreased after many hours of blowing with argon. Prolonged heating up to 80 degrees C also did not deactivate the ability of these products to change the reproductive mode. The effect of the medium that contains these products decreased after boiling, but if the possibilities of their oxidation or binding with salts of metals were excluded, they retained the ability to change the reproductive mode of the animals even after boiling.

WOS
Держатели документа:
Russian Acad Sci, Siberian Branch, Inst Biophys, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, Krasnoyarsk 660041, Russia.
ИБФ СО РАН

Доп.точки доступа:
Lopatina, T.S.; Zadereev, E.S.

Найти похожие

Maternal effects, conspecific chemical cues, and switching from parthenogenesis to gametogenesis in the cladoceran Moina macrocopa [Text] / Y. S. Zadereev // Aquat. Ecol. - 2003. - Vol. 37, Is. 3. - P. 251-255, DOI 10.1023/A:1025850417717. - Cited References: 19 . - ISSN 1386-2588

РУБ Ecology + Limnology + Marine & Freshwater Biology
Рубрики:
POPULATION-DENSITY
   DAPHNIA-MAGNA
   CRUSTACEA
   REPRODUCTION
   DIAPAUSE
Кл.слова (ненормированные):
adaptation -- Cladocera -- chemical signals -- gametogenesis induction -- maternal control
Аннотация: The change in reproductive mode from parthenogenesis to gametogenesis in Cladocera is controlled by multiple environmental cues. Maternal effects are involved in the control of reproductive switching. In this study, we estimated the readiness of Moina macrocopa females to change reproduction mode under the effect of conspecific chemicals on maternal and offspring generations. The results demonstrated that information about the chemical environment was not transmitted between generations (none of the females produced diapausing eggs in the control medium irrespective of their mothers' environment). Differences in maternal energetic investments were not significant, hence the maternal environment did not affect the fecundity. However, tested animals adapted to the effect of the diapause inducing factor. When offspring of mothers cultured in crowded water were also cultured in crowded water (the constant effect of conspecific chemicals), they switched less readily to gametogenesis than offsprings of mothers cultured in fresh medium.

WOS
Держатели документа:
RAS, SB, Inst Biophys, Krasnoyarsk 660036, Russia
ИБФ СО РАН : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Zadereev, Y.S.

Найти похожие

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

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

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

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

Найти похожие

10.

Study of non-consumptive mortality of Crustacean zooplankton in a Siberian reservoir using staining for live/dead sorting and sediment traps [Text] / O. P. Dubovskaya [et al.] // Hydrobiologia. - 2003. - Vol. 504: 4th International Conference on Reservoir Limnology and Water Quality (AUG, 2002, CESKE BUDEJOVICE, CZECH REPUBLIC), Is. 01.03.2013. - P. 223-227, DOI 10.1023/B:HYDR.0000008522.88010.45. - Cited References: 19 . - ISSN 0018-8158

РУБ Marine & Freshwater Biology
Рубрики:
SEASONAL DYNAMICS
   MIDSUMMER DECLINE
   DAPHNIA
   DETRITUS
   FISH
   POND
Кл.слова (ненормированные):
Cyclops vicinus -- Daphnia -- live/dead sorting -- non-consumptive mortality -- sedimentation
Аннотация: We studied non-consumptive (non-predatory) mortality of Daphnia and Cyclops vicinus during four sampling seasons. Mortality estimations were based on live/dead sorting using special staining and measurements of sedimentation rates for dead individuals, depended on wind speed. Original equations were used for calculations. The estimated specific non-consumptive mortality never had biologically senseless negative values, which were often obtained on the basis of the other ways of mortality estimations, and was in a good agreement with other components of population dynamics. As found, the non-consumptive mortality was the important, often the determinant component of the zooplankton population dynamics.

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

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

Найти похожие

11.

Particulate fatty acids in two small Siberian reservoirs dominated by different groups of phytoplankton [Text] / N. N. Sushchik [et al.] // Freshw. Biol. - 2003. - Vol. 48, Is. 3. - P. 394-403, DOI 10.1046/j.1365-2427.2003.01009.x. - Cited References: 44 . - ISSN 0046-5070

РУБ Marine & Freshwater Biology
Рубрики:
ENCLOSED EXPERIMENTAL ECOSYSTEM
   BLUE-GREEN-ALGAE
   DAPHNIA-GALEATA
   FOOD QUALITY
   MICROALGAE
   ZOOPLANKTON
   NUTRITION
   GROWTH
   LAKE
   REPRODUCTION
Кл.слова (ненормированные):
cyanobacteria -- daphnids -- diatoms -- fatty acids
Аннотация: 1. We studied the composition of fatty acids (FAs) in the seston from two small freshwater reservoirs (Bugach and Lesnoi) with distinct periodicity of domination by cyanobacteria and eukaryotic algae during the growth season. 2. The diatoms in the both reservoirs were characterised by a high content of 14:0 and C16 unsaturated acids, whereas that of the essential FA 20:5omega3 [eicosapentanoic acid (EPA)] was low. The correlation between this polyunsaturated FA (PUFA) and diatom biomass was not significant in either reservoir. The percentage of 20:5omega3 in seston significantly correlated with the biomass of euglenophyta in Bugach and dinophyta in Lesnoi. Hence the diatoms, usually referred as a valuable food for zooplankton, were not an important source of the essential PUFA in these systems. 3. The dominant cyanobacteria in Bugach, and the green algae in Lesnoi, both contained the same marker acids: 18:3omega3 and 18:2omega6. Hence, a discrimination between these two phytoplanktonic groups on the basis of FA biomarkers may be difficult in some cases. 4. We found no significant correlation between the content of 20:5omega3 in seston and the biomass of the dominant daphniids in either reservoir. This is contrary to expectations, based on the literature, that EPA is generally important. Rather, the biomass of the two dominant Daphnia species in Bugach correlated strongly with the content of 18:3omega3 in the seston. The cyanobacteria were a probable source of this omega3 FA for Daphnia . We conclude that EPA is not always important for Daphnia populations although, in such cases, some other PUFA (e.g. 18:3omega3) might be related to their growth.

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

Доп.точки доступа:
Sushchik, N.N.; Gladyshev, M.I.; Kalachova, G.S.; Kravchuk, E.S.; Dubovskaya, O.P.; Ivanova, E.A.

Найти похожие

12.

Interrelations of epibiontic microalgae and crustacean zooplankton under conditions of a blooming eutrophic water body [Text] / N. A. Gaevskii [et al.] // Russ. J. Ecol. - 2004. - Vol. 35, Is. 1. - P. 35-41, DOI 10.1023/B:RUSE.0000011107.72097.1c. - Cited References: 22 . - ISSN 1067-4136

РУБ Ecology
Рубрики:
ALGAL EPIBIONT
   DAPHNIA
   HOST
   COMMUNITIES
Кл.слова (ненормированные):
epibiontic microalgae -- Cyclops vicinus -- Daphnia longispina -- mutualism -- algal bloom
Аннотация: The possibility of symbiotic, mutualistic (++) interrelations between epibiontic microalgae (Characidiopsis ellipsoidea, Colacium vesiculosum) and cyclopoids (Cyclops vicinus, Mesocyclops leukarti) in the Bugach recreational reservoir with a bloom of cyanobacteria is demonstrated. Overgrown cyclopoids, compared to those free from microalgae, have advantages in oxygen supply, which may be insufficient in the period of intensive algal bloom. Calculations have shown that oxygen requirements of cyclopoids may be fully satisfied due to C. vesiculosum photosynthetic activity in the dysphotic zone if the density of overgrowth exceeds 1000 algal cells per individual. There is no significant correlation between the natural mortality of crustaceans and the indices of their overgrowth by microalgae.

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

Доп.точки доступа:
Gaevskii, N.A.; Kolmakov, V.I.; Dubovskaya, O.P.; Klimova, E.P.

Найти похожие

13.

Seasonal dynamics of amino acids in two small Siberian reservoirs dominated by prokaryotic and eukaryotic phytoplankton [Text] / G. S. Kalachova [et al.] // Aquat. Ecol. - 2004. - Vol. 38, Is. 1. - P. 3-15, DOI 10.1023/B:AECO.0000021044.55658.71. - Cited References: 37 . - ISSN 1386-2588

РУБ Ecology + Limnology + Marine & Freshwater Biology
Рубрики:
DISSOLVED ORGANIC-MATTER
   PARTICULATE FATTY-ACIDS
   FRESH-WATER ECOSYSTEMS
   BACTERIAL PRODUCTION
   CHEMICAL-COMPOSITION
   RATES
   MICROALGAE
   PROTEINS
   RELEASE
   DAPHNIA
Кл.слова (ненормированные):
amino acids -- phytoplankton -- cyanobacteria -- blooms
Аннотация: The comparison of the dynamics of phytoplankton biomass and total amino acid composition was made for two water bodies: in one the phytoplankton were dominated by prokaryotes (i.e., there was a bloom of cyanobacteria) and by eukaryotic microalgae in the other. The dynamics of phytoplankton biomass and of total amino acid composition of water were investigated during the vegetation season. It was found that the only factor that significantly changed the percentages of amino acids in water was the bloom of cyanobacteria in the "blooming" water body. During the bloom of cyanobacteria, the absolute and relative content of the Leu-Glu group increased, while the contents of other acids generally dropped. Before and after the bloom, no significant variations in the total amino acid composition were recorded. In the reservoir where eukaryotic microalgae dominated, no significant variations in amino acid composition were recorded during the season.

WOS
Держатели документа:
Russian Acad Sci, Inst Biophys, Siberian Branch, Krasnoyarsk 660036, Russia
Krasnoyarsk State Univ, Krasnoyarsk 660041, Russia
Krasnoyarsk State Agr Univ, Krasnoyarsk 660049, Russia
ИБФ СО РАН : 660036, Красноярск, Академгородок, д. 50, стр. 50

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

Найти похожие

14.

Associating particulate essential fatty acids of the omega 3 family with phytoplankton species composition in a Siberian reservoir [Text] / N. N. Sushchik [et al.] // Freshw. Biol. - 2004. - Vol. 49, Is. 9. - P. 1206-1219, DOI 10.1111/j.1365-2427.2004.01263.x. - Cited References: 48 . - ISSN 0046-5070

РУБ Marine & Freshwater Biology
Рубрики:
ENCLOSED EXPERIMENTAL ECOSYSTEM
   FOOD QUALITY
   BENTHIC INVERTEBRATES
   GREEN-ALGAE
   CYANOBACTERIA
   DAPHNIA
   MICROALGAE
   ZOOPLANKTON
   LAKE
   APHANIZOMENON
Кл.слова (ненормированные):
cyanobacteria -- diatoms -- fatty acids -- food quality -- species composition
Аннотация: 1. We studied variation in the composition of fatty acids in the seston of a small freshwater reservoir with changes in phytoplankton composition during four growth seasons. We focused on the dynamics of the omega3 fatty acids because of their potential importance for zooplankton nutrition. 2. Total diatoms were related to the 20:5omega3 fatty acid (eicosapentaenoic, EPA) content in seston. Among two dominant diatom genera, Cyclotella was not associated with EPA content. In contrast, there was a significant correlation between Stephanodiscus and the percentage contribution and content of EPA throughout the study. Hence, freshwater diatoms can differ strongly in content of the essential EPA. 3. We considered abundant cyanobacteria as a potential source of 18:3omega3 fatty acid (linolenic, ALA) to aquatic food webs. Among four dominant cyanobacteria species, two (Anabaena flos-aquae and Planktothrix agardhii) showed significant correlation with the ALA content of the seston, while the other two (Aphanizomenon flos-aquae and Microcystis aeruginosa) did not. 4. Dinophyta had a relatively high level of 22:6omega3 (docosahexaenoic, DHA) for freshwater species and can be also a source of EPA to aquatic food webs. 5. Our results show that various species of diatoms as well as cyanobacteria can be of contrasting nutritional value for zooplankton because of their different content of the essential PUFAs. Diatoms, which are low in EPA, could not be considered as a valuable food, while some field populations of cyanobacteria might be valuable sources of essential ALA.

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

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

Найти похожие

15.

Effects of Dreissena polymorpha on the transfer efficiency of carbon, fatty acids, nitrogen, and phosphorus from phytoplankton to zooplankton / E. G. Sakharova, M. Karpowicz, M. I. Gladyshev [и др.] // Zhurnal Obshchei Biol. - 2021. - Vol. 82, Is. 3. - С. 188-200, DOI 10.31857/S0044459621030052. - Cited References:72 . - ISSN 0044-4596

РУБ Biology
Рубрики:
ZEBRA MUSSELS
   FRESH-WATER
   MICROCYSTIS-AERUGINOSA
   DAPHNIA-LONGISPINA
Аннотация: The efficiency of the transfer of physiologically valuable substances including polyunsaturated fatty acids (PUFA), nitrogen, and phosphorus from phytoplankton to zooplankton is extremely important for the functioning of the whole food web. The bivalve mollusk Dreissena polymorpha has a great impact on planktonic communities. However, its effects on the efficiency of transfer of physiologically valuable substances from phytoplankton to zooplankton have not been assessed so far. The goal of our study was to assess the effect of zebra mussels on the transfer efficiency of carbon, fatty acids including PUFA, nitrogen, and phosphorus from phytoplankton to zooplankton under mesotrophic conditions. In the experimental mesocosms filled with water from a mesotrophic lake containing phyto- and zooplankton, we manipulated the presence/absence of zebra mussels. The experiments showed that zebra mussels decreased the efficiency of the transfer of carbon, PUFA, nitrogen, and phosphorus from phytoplankton to zooplankton, thus reducing the quality of zooplankton as a food resource for higher trophic levels. However, zooplankton revealed the ability to increase the content of physiologically valuable substances in their tissues relative to their contents in the diet. We believe that the mechanism of accumulation of physiologically valuable substances by zooplankton enables to at least partially resist the negative influence of zebra mussels on the quality of zooplankton as a food resource.

WOS
Держатели документа:
RAS, Papanin Inst Biol Inland Waters, Pos Borok 152742, Yaroslavl Regio, Russia.
Univ Bialystok, Inst Biol, Dept Hydrobiol, Ul Ciolkowskiego 1J, PL-15245 Bialystok, Poland.
SB RAS, Krasnoyarsk Sci Ctr, Fed Res Ctr, Inst Biophys, Akad Gorodok 50, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, Av Svobodny 79, Krasnoyarsk 660041, Russia.
Natl Acad Sci Belarus, Sci & Pract Ctr Bioresources, St Akad Skaya 27, Minsk 220072, BELARUS.
RAS, Inst Ecol & Evolut, Leninsky Prosp 33, Moscow 119071, Russia.

Доп.точки доступа:
Sakharova, E. G.; Karpowicz, M.; Gladyshev, M., I; Sushchik, N. N.; Gorelysheva, Z., I; Feniova, I. Yu

Найти похожие

16.

Zooplankton carcasses stimulate microbial turnover of allochthonous particulate organic matter / D. Neubauer, O. Kolmakova, J. Woodhouse [et al.] // ISME J. - 2021, DOI 10.1038/s41396-020-00883-w. - Cited References:83. - Open Access funding enabled and organized by Projekt DEAL. . - Article in press. - ISSN 1751-7362. - ISSN 1751-7370

РУБ Ecology + Microbiology
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.

WOS
Держатели документа:
Leibniz Inst Freshwater Ecol & Inland Fisheries I, Dept Expt Limnol, D-16775 Stechlin, Germany.
Potsdam Univ, Inst Biochem & Biol, D-14476 Potsdam, Germany.
RAS, Inst Biophys SB, Fed Res Ctr, Krasnoyarsk Sci Ctr, Krasnoyarsk, Russia.
Siberian Fed Univ, Inst Fundamental Biol & Biotechnol, Krasnoyarsk, Russia.
Helmholtz Ctr Potsdam, Sect Organ Geochem 32, GFZ German Res Ctr Geosci, D-14473 Potsdam, Germany.
Leibniz Inst Freshwater Ecol & Inland Fisheries I, Dept Chem Analyt & Biogeochem, Muggelseedamm 310, D-12587 Berlin, Germany.

Доп.точки доступа:
Neubauer, Darshan; Kolmakova, Olesya; Woodhouse, Jason; Taube, Robert; Mangelsdorf, Kai; Gladyshev, Michail; Premke, Katrin; Grossart, Hans-Peter; Projekt DEAL

Найти похожие

17.

The effect of deicing salt solutes on Moina macrocopa and Allium cepa in a toxicity test experiment / T. S. Lopatina, Y. V. Aleksandrova, O. V. Anishchenko [и др.] // Vestn. Tomsk. Gos. Univ. Biol. - 2020. - Is. 51. - С. 162-178, DOI 10.17223/19988591/51/9. - Cited References:29. - This work was supported by the joint grant from the Russian Foundation for Basic Research, the Government of Krasnoyarsk Krai, and the Krasnoyarsk Krai Fund for Supporting Scientific and Scientific-Technical Activities (Grant No 19-44-240014). . - ISSN 1998-8591. - ISSN 2311-2077

РУБ Biology + Ecology
Рубрики:
DAPHNIA-MAGNA
   NACL SALINITY
   ROAD SALTS
   WATER
   FRESH
   CHLORIDE
Кл.слова (ненормированные):
salinity -- toxicity test -- Cladocera -- Allium-test -- aquatic ecosystems
Аннотация: Chloride salts are the most commonly used deicing materials for winter maintenance of roads. Numerous studies indicate a significant increase in the salinity of aquatic ecosystems associated with the long-term use of deicing materials in countries located in cold climates. The functioning of ecosystems largely depends on salinity, since salinity is one of the key factors determining the species composition, the structure of food webs and the productivity of aquatic communities. Given the growing threat of salinization of groundwater and surface waters, it is extremely important to study the effect of deicing materials on the biota and functioning of aquatic ecosystems. The aim of this research is to determine the threshold concentrations of solutions of the deicing salt mixture "Bionord" containing sodium and calcium chlorides, at which negative effects on the development of animal and plant test objects are observed. In this study, we used the salt-containing mixture "Bionord" as a model deicer. Similarly, with the most commonly used ice melting chemicals, the "Bionord" salt mixture contains a large amount of sodium and calcium chlorides (about 85% of the total weight). To evaluate the toxicity of the deicer solutions, we used acute and chronic toxicity tests with cladoceran Moina macrocopa (Straus, 1820) (Cladocera: Moinidae) and standard onion-based test with Allium cepa L. (Liliopsida: Amaryllidaceae) (Allium-test). In acute and chronic toxicity tests with Cladocera, the females on the first day of their life (body size 0.5-0.6 mm) were placed individually in jars with aged (not less than for 72 h) tap water with a volume of 20 ml with the addition of a deicer at a certain concentration. A group of animals that was placed in the medium without the deicer was used as a control. In the acute toxicity tests, we used the following concentration of the deicer: 1.3; 2.5; 4.0, 5.0; 6.0; 8.0; 10.0 g/l. The mortality of animals was recorded 24 and 48 hours after the start of the experiment. The concentration of the deicer (LC50) at which 50% of animals was observed to die, compared to the control, was determined in the acute toxicity test. In a chronic toxicity test, animals were tested in the following range of concentrations of the deicer: 0.3; 0.6; 1.3; 2.5; 5.0; 6.0 and 8.0 g/l. The chronic toxicity test was conducted until the death of all test animals. Based on the data obtained in the chronic toxicity test, the specific growth rate of juvenile females, average fecundity, and average life span of M. macrocopa were calculated for each concentration of the deicer. Bulbs of onions of the Stuttgartenrisen variety with a diameter of 1.8 +/- 0.1 cm and a weight of 2.27 +/- 0.17 g were used in the onion test. Bulbs with their bottoms were placed in test tubes containing 20 ml of a solute of the deicer or tap water for 48 hours. Three bulbs were tested for each concentration and for the control. The following concentrations of the deicer were used in the onion test: 1.0; 2.5; 5.0; 7.0; 10.0; 15.0; 20.0; 50.0 g/l. The general toxic and cytotoxic effects were evaluated in the onion test. The average root length and the total root length on each bulb were used as indicators of the total toxicity of the solutions of deicer. To evaluate proliferative activity, we calculated the mitotic index as the fraction of dividing cells in the apical root meristem to the total number of cells. Based on the results of the experiments, we determined median effective mixture concentrations (EC50) at which there is a 50% decrease, compared to the control, in the values of root growth indicators: average root length, sum of root lengths on each bulb and mitotic index. Median lethal concentration (LC50) of the deicing salt determined in the 48-hour acute toxicity test with females of Al. macrocopa was equal to 5.1 g/l. In the chronic test, we showed that the exposure to the solutions of the deicing salt in the range of concentrations from 0.3 to 5.0 g/l does not affect the life span, specific growth rate of juveniles and fecundity of females of M. macrocopa. The median effective concentration (EC50) of the deicing salt determined in the Allium-tests were 6.3, 5.2 and 10.4 g/l for the sum of root lengths, average root length on each bulb and proliferative activity at the tips of roots (mitotic index), respectively (See Table 1 and 2). Complete inhibition of onion root growth was observed at the concentration of the decider equal to 20 g/l, while the death of all test animals in the acute toxicity test occurred at the concentration of the deicer equal to 8,0 g/l (See Fig. 1). Thus, we demonstrated that similar concentrations of the deicer induced 50% inhibition of the growth of onion roots and 50% mortality of cladocerans. These values, in general, corresponded to a critical salinity of 5-8 %o above which qualitative changes occur both in the external and internal condition of aquatic animals. The electrical conductivity of the deicer solutions, which had a negative effect on the selected test species, coincides with the previously obtained values of the electrical conductivity of sodium chloride solutions harmful to cladocerans. We can assume that the main mechanism of the effect of the deicing material that we study is associated with the biological effect of its chlorine and sodium salts Taking this into account, the value of electrical conductivity measured for solutions of deicing salt can be used to assess its negative potential effects. We estimated that in the absence of timely cleaning, regulated by the rules for using the material, the runoff from each square meter of the treated surface can lead to the pollution of 8-13 liters of fresh water. Thus, the basic requirement for the use of deicing salts on roads is the need to comply with the cleaning regime of the treated surfaces. Otherwise, the gradual accumulation of sodium and calcium chlorides in water bodies can cause an increase in salinity which will affect the survival of freshwater aquatic organisms and lead to serious disturbances in the functioning of aquatic ecosystems.

WOS
Держатели документа:
Russian Acad Sci, Fed Res Ctr, Inst Biophys, Siberian Branch,Krasnoyarsk Sci Ctr,Lab Ecosyst B, 50-50 Akademgorodok, Krasnoyarsk 660036, Russia.
Russian Acad Sci, Fed Res Ctr, Inst Biophys, Siberian Branch,Krasnoyarsk Sci Ctr,Lab Biolumine, 50-50 Akademgorodok, Krasnoyarsk 660036, Russia.
Russian Acad Sci, Fed Res Ctr, Inst Biophys, Siberian Branch,Krasnoyarsk Sci Ctr,Analyt Lab, 50-50 Akademgorodok, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, Sch Fundamental Biol & Biotechnol, Dept Biophys, 79 Svobodniy Ave, Krasnoyarsk 660041, Russia.

Доп.точки доступа:
Lopatina, Tatiana S.; Aleksandrova, Yuliyana, V; Anishchenko, Olesya, V; Gribovskaya, Iliada, V; Oskina, Nataliya A.; Zotina, Tatiana A.; Zadereev, Egor S.; Russian Foundation for Basic ResearchRussian Foundation for Basic Research (RFBR); Government of Krasnoyarsk Krai; Krasnoyarsk Krai Fund for Supporting Scientific and Scientific-Technical Activities [19-44-240014]

Найти похожие

18.

Effects of Macrobiota on the Transfer Efficiency of Essential Elements and Fatty Acids From Phytoplankton to Zooplankton Under Eutrophic Conditions / I. Y. Feniova, M. Karpowicz, M. I. Gladyshev [et al.] // Front. Environ. Sci. - 2021. - Vol. 9. - Ст. 739014, DOI 10.3389/fenvs.2021.739014. - 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). . - ISSN 2296-665X

РУБ Environmental Sciences
Рубрики:
FRESH-WATER ZOOPLANKTON
DAPHNIA-LONGISPINA
ZEBRA MUSSELS
Кл.слова (ненормированные):
fish -- zebra mussels -- nitrogen -- phosphorus -- food quality
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.

WOS
Держатели документа:
Russian Acad Sci, Inst Ecol & Evolut, Moscow, Russia.
Univ Bialystok, Fac Biol, Dept HydroBiol, Bialystok, Poland.
Russian Acad Sci, Inst Biophys Fed Res Ctr, Krasnoyarsk Sci Ctr, Siberian Branch, Krasnoyarsk, Russia.
Siberian Fed Univ, Chair Aquat & Terr Ecosyst, Krasnoyarsk, Russia.
Russian Acad Sci, Papanin Inst Biol Inland Waters, Borok, Russia.
Oklahoma State Univ, Dept Integrat Biol, Stillwater, OK 74078 USA.

Доп.точки доступа:
Feniova, Irina Yu; Karpowicz, Maciej; Gladyshev, Michail I.; Sushchik, Nadezhda N.; Petrosyan, Varos G.; Sakharova, Ekaterina G.; Dzialowski, Andrew R.; 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]

Найти похожие

19.

The effect of salinity on the grazing rate and survival of Daphnia magna females adapted to different salinities / E. S. Zadereev, T. S. Lopatina, S. D. Ovchinnikov [et al.] // Aquat. Ecol. - 2022, DOI 10.1007/s10452-021-09941-7. - Cited References:47. - The reported study was funded by the Krasnoyarsk Regional Fund for supporting scientific and technical activities, the Krasnoyarsk Krai Government and the Russian Foundation for Basic Research, project number 19-44-240010. We are grateful to professional English translator Elena Krasova for language corrections. . - Article in press. - ISSN 1386-2588. - ISSN 1573-5125

РУБ Ecology + Limnology + Marine & Freshwater Biology
Рубрики:
FEEDING-BEHAVIOR
PHYTOPLANKTON CONTROL
SPECIES COMPOSITION
Кл.слова (ненормированные):
Salinity -- Grazing -- Phytoplankton -- Adaptation -- Daphnia
Аннотация: The cladoceran Daphnia magna inhabits lakes with salinities up to 10 g L-1. We compared the effects of different salinities (up to 9 g L-1) on the survival, specific grazing rate, and size selective feeding of Daphnia females adapted to fresh or saline waters (3-4 g L-1). The freshwater population was more sensitive to high salinity (LC50 = 5.3 g L-1), while the survival of the saline water population also decreased in fresh water. Freshwater population demonstrated a higher grazing rate in fresh water, while the saline water population had a higher grazing rate at the salinity above 3 g L-1. A decrease in the grazing rate of the freshwater population was observed at the salinity above 4-5 g L-1. Populations differed in food selectivity. The saline water population consumed particles of larger sizes than the freshwater population. The average size of phytoplankton particles grazed in fresh water was larger than in saline water. This size selective salinity-dependent grazing may be related to the dependence of the feeding efficiency of cladocerans on the viscosity of water and size of phytoplankton particles. Our results indicate that Daphnia populations adapted to a certain salinity can temporarily lose the ability to control phytoplankton because of salinity fluctuations.

WOS
Держатели документа:
Russian Acad Sci, Fed Res Ctr, Krasnoyarsk Sci Ctr, Inst Biophys, 50-50 Akademgorodok, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, 79 Svobodniy Ave, Krasnoyarsk 660041, Russia.
Khakassky State Nat Reserve, POB 189, Abakan 655017, Russia.

Доп.точки доступа:
Zadereev, E. S.; Lopatina, T. S.; Ovchinnikov, S. D.; Oskina, N. A.; Drobotov, A., V; Tolomeev, A. P.; Krasnoyarsk Regional Fund; Krasnoyarsk Krai Government; Russian Foundation for Basic ResearchRussian Foundation for Basic Research (RFBR) [19-44-240010]

Найти похожие

20.

Effect of Fish on the Transfer Efficiency of Carbon, PUFA, and Nutrients from Phytoplankton to Zooplankton under Eutrophic Conditions / I. Y. Feniova, E. G. Sakharova, M. I. Gladyshev [et al.] // Biol. Bull. - 2021. - Vol. 48, Is. 8. - P1284-1297, DOI 10.1134/S1062359021080070. - Cited References:49. - Experiments and collection of biological material were supported by the National Science Center of Poland (project no. UMO-506 2016/21/B/NZ8/00434). Processing of phytoplankton samples was carried out with the financial support of the Russian Foundation for Basic Research (project no. 18-54-00002 Bel_a); processing of zooplankton samples and their analysis were carried out with the financial support of the Belarusian Republican Foundation for Basic Research (BRFFR no. B18R-004); statistical processing and analysis of data were performed under government contract no. AAAA-A18-118012690096-1; and interpretation of the results, data analysis, and preparation of materials for publication, were done with the financial support of the Russian Science Foundation (project no. 16-14-10323). . - ISSN 1062-3590. - ISSN 1608-3059

РУБ Biology
Рубрики:
FATTY-ACIDS
   FOOD QUALITY
   FRESH-WATER
   ZEBRA MUSSELS
   DAPHNIA
Кл.слова (ненормированные):
primary and secondary production -- carbon -- nitrogen -- phosphorus -- phyto- -- and zooplankton -- fish -- eutrophic conditions -- efficiency of substance -- transfer -- mesocosm
Аннотация: The efficiency of the transfer of carbon, polyunsaturated fatty acids (PUFA), nitrogen, and phosphorus from phytoplankton to zooplankton determines the functioning of the entire ecosystem. However, this parameter depends on environmental conditions. Fish as a very important factor regulating planktonic communities very likely affect the efficiency of the transfer of basic elements and substances from phytoplankton to zooplankton. In experimental mesocosms filled with water from a eutrophic lake and containing phyto- and zooplankton, we investigated how fish affect both primary and secondary production and the efficiency of transfer of carbon, nitrogen, phosphorus, PUFA, and fatty acids (FAs) from phytoplankton to zooplankton. Two treatments (control and fish treatment) were repeated in three replicates. The transfer efficiency of substances from phytoplankton to zooplankton was measured as the ratio of secondary production to primary production expressed per L and per unit of biomass. The efficiency expressed per L characterizes the productivity of the water body, while the efficiency expressed per unit of biomass indicates the effectiveness of aquatic species to transfer biologically valuable substances from one trophic level to another. We found that phytoplankton-zooplankton-fish interface is determined not only by predator-prey relationships, but are also affected by the quality of both phytoplankton and zooplankton in terms of contents of phosphorus, nitrogen, PUFA, and FAs in their biomass. We showed that, in the presence of fish, the transfer efficiency of carbon, phosphorus, nitrogen, eicosapentaenoic acid (EPA), docosahexaenoic acid (DHA), and FAs per unit of biomass from phytoplankton to zooplankton was increased twofold, 12.4-fold, 2.5-fold, 12.4-fold, 7.4-fold, and tenfold, respectively, relative to the control. This facilitates sustainable functioning of the ecosystem under fish pressure. Such a mechanism prevents zooplankton over-exploitation by fish and enlarges the food chain.

WOS
Держатели документа:
Russian Acad Sci, Severtsov Inst Ecol & Evolut, Moscow 119071, Russia.
Russian Acad Sci, Papanin Inst Biol Inland Waters, Borok 152742, Russia.
Russian Acad Sci, Siberian Branch, Krasnoyarsk Sci Ctr, Fed Res Ctr,Inst Biophys, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, Russia 660041, Russia.
Natl Acad Sci Belarus, Sci & Pract Ctr Bioresources, Minsk 220072, BELARUS.
Univ Bialystok, Inst Biol, Dept Hydrobiol, PL-15245 Bialystok, Poland.

Доп.точки доступа:
Feniova, I. Yu; Sakharova, E. G.; Gladyshev, M., I; Sushchik, N. N.; Gorelysheva, Z., I; Karpowicz, M.; National Science Center of PolandNational Science Centre, Poland [UMO-506 2016/21/B/NZ8/00434]; Russian Foundation for Basic ResearchRussian Foundation for Basic Research (RFBR) [18-54-00002 Bel_a]; Belarusian Republican Foundation for Basic Research (BRFFR) [B18R-004]; Russian Science FoundationRussian Science Foundation (RSF) [16-14-10323]; [AAAA-A18-118012690096-1]

Найти похожие