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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.

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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]

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Factors of Dynamics of Plankton Crustacean Communities under Eutrophic Conditions / I. Y. Feniova [et al.] // Russ. J. Ecol. - 2019. - Vol. 50, Is. 1. - P50-57, DOI 10.1134/S1067413619010028. - Cited References:35. - The experiments and collection of biological samples were carried out with support from the Polish National Science Center (UMO-506 2016/21/B/NZ8/00434). Phytoplankton samples were processed with support from the Russian Foundation for Basic Research (project no. 18-54-00002 Bel_a), zooplankton samples were processed with support from the Belarusian Republican Foundation for Basic Research (project nos. B18SRBG-007 and B18KI-007). Statistical analysis, interpretation of the results, literature review and preparation of publication were performed with support from the Russian Science Foundation (project no. 16-14-10323). . - ISSN 1067-4136. - ISSN 1608-3334

РУБ Ecology
Рубрики:
FOOD QUALITY
   STOICHIOMETRY
   LIMITATION
   GROWTH
   WATER
   NITROGEN
Кл.слова (ненормированные):
mesocosms -- nutrients -- chlorophyll -- biomass of crustaceans -- species -- structure of zooplankton -- food quality
Аннотация: It has been shown that the main drivers of the dynamics of cladoceran and copepod abundances can be predators (fish), the quantity and/or quality of food in terms of the contents of eicosapentaenoic acid, phosphorus and nitrogen in the seston under eutrophic conditions. In experimental mesocosms under eutrophic conditions, we found that, fish did not affect the quantity and quality of food resources for crustaceans. In the second half of experiments, however, dominance shifted from copepods to cladocerans. This was due to the improvement of the food quality for cladocerans in terms of the carbon-to-phosphorus ratio in the seston rather than to fish predation. Under eutrophic conditions, fish reduced the biomass of both cladocerans and copepods without changing the ratio between them.

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Держатели документа:
Russian Acad Sci, Severtsov Inst Ecol & Evolut, Moscow 119071, Russia.
Natl Acad Sci Belarus, Sci & Pract Ctr Bioresources, Minsk 220072, BELARUS.
Russian Acad Sci, Siberian Branch, Krasnoyarsk Sci Ctr, Inst Biophys, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, Krasnoyarsk 660041, Russia.
Univ Warsaw, Fac Biol, PL-02096 Warsaw, Poland.
Nencki Inst Expt Biol, Hydrobiol Stn, PL-11730 Mikolajki, Poland.
Russian Acad Sci, Obukhov Inst Atmospher Phys, Moscow 119017, Russia.

Доп.точки доступа:
Feniova, I. Yu.; Razlutskij, V. I.; Gladyshev, M. I.; Kostrzewska-Szlakowska, I.; Majsak, N. N.; Rzepecki, M.; Sushchik, N. N.; Zilitinkevich, N. S.; Polish National Science Center [UMO-506 2016/21/B/NZ8/00434]; Russian Foundation for Basic Research [18-54-00002 Bel_a]; Belarusian Republican Foundation for Basic Research [B18SRBG-007, B18KI-007]; Russian Science Foundation [16-14-10323]

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The stoichiometric ratios (C:N:P) in a pelagic food web under experimental conditions / M. Karpowicz [et al.] // Limnologica. - 2019. - Vol. 77. - Ст. 125690, DOI 10.1016/j.limno.2019.125690 . - ISSN 0075-9511
Кл.слова (ненормированные):
Elemental and biochemical composition -- Food quality -- Lake nutrient stoichiometry -- Phytoplankton -- Trophic status -- Zooplankton -- algae -- Daphnia -- Daphnia magna -- Daphnia pulicaria -- Rotifera
Аннотация: Interactions between phytoplankton and zooplankton affect the overall functioning of lakes. Herbivores are habitually confronted with food of inferior quality, usually a result of low nutrient concentrations in plant material. Large-bodied cladocerans are better competitors for food than small-bodied species but they are more vulnerable to low food quality. Understanding the effects of food quality on zooplankton structure and competition between small - large bodied herbivorous is of considerable interest. We want to find out how differences in C:N:P ratios between phytoplankton and zooplankton communities affect their abundances in a freshwater food web. We want also to assess the role of phytoplankton and zooplankton as sinks of the phosphorus and nitrogen. Therefore, we conducted a 31-day mesocosms experiment with water from a mesotrophic and a eutrophic lake (with natural plankton communities). To simulate changes in the plankton communities large-bodied Daphnia magna and Daphnia pulicaria were added. Samples for zooplankton, phytoplankton and water chemistry were taken every 10 days. Samples for elemental analysis (C:N:P) of seston and zooplankton were collected on the first, and on the final day of the experiment. Our mesocosms experiment showed mismatch in C:P between seston (high) and zooplankton (low), which suggests that most of the phosphorus is incorporated in zooplankton biomass. This evidenced that zooplankton is an effective sink of phosphorus, while nitrogen is accumulated mainly by primary producers. Our results also indicated more stability in stoichiometry with increasing trophic levels of organisms. However, there were significant changes in the zooplankton structure. The increasing dominance of large Daphnia resulted in reduction of C:P ratio in zooplankton. Low food quality (C:P) did not limit the growth of large Daphnia in the experimental conditions, which competed effectively with small planktonic cladocerans and with Rotifera. Over time, inedible algae began to dominate resulting in increase of relative biomass of periphyton grazers, which suggests that plankton community is transformed into littoral system in mesocosms for about 30 days. © 2019

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Держатели документа:
Department of Hydrobiology, Institute of Biology, University of Bialystok, Ciolkowskiego 1J, Bialystok, 15-245, Poland
Institute of Ecology and Evolution, Russian Academy of Sciences, Leninsky Prospect 33, Moscow, Russian Federation
Siberian Federal University, Svobodny av. 79, Krasnoyarsk, 660041, Russian Federation
Institute of Biophysics of Federal Research Centre, Krasnoyarsk Science Centre of Siberian Branch of Russian Academy of Sciences, Akademgorodok, Krasnoyarsk, 660036, Russian Federation
Research Station in Mikolajki, Nencki Institute of Experimental Biology, Poland Academy of Sciences, 3 Pasteur Street, Warsaw, 02-093, Poland
Department of Environmental Protection, Institute of Biology, University of Bialystok, Ciolkowskiego 1J, Bialystok, 15-245, Poland
Department of Hydrobiology, Faculty of Biology, Biological and Chemical Research Center, University of Warsaw, Zwirki i Wigury 101, Warsaw, 02-089, Poland
Department of Integrative Biology, Oklahoma State University, Stillwater, OK 74078, United States

Доп.точки доступа:
Karpowicz, M.; Feniova, I.; Gladyshev, M. I.; Ejsmont-Karabin, J.; Gorniak, A.; Zielinski, P.; Dawidowicz, P.; Kolmakova, A. A.; Dzialowski, A. R.

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Direct and indirect impacts of fish on crustacean zooplankton in experimental mesocosms / I. Feniova [et al.] // Water. - 2019. - Vol. 11, Is. 10. - Ст. 2090, DOI 10.3390/w11102090 . - ISSN 2073-4441
Кл.слова (ненормированные):
Fish effects -- Mesocosm experiments -- Nutrients -- Phytoplankton -- Polyunsaturated fatty acids -- Population growth rate -- Small and large cladocerans -- Stoichiometric elemental composition -- Zooplankton -- Fish -- Lakes -- Nutrients -- Phosphorus -- Phytoplankton -- Plankton -- Polyunsaturated fatty acids -- Population statistics -- Elemental compositions -- Mesocosms -- Population growth rates -- Small and large cladocerans -- Zooplankton -- Meats -- algae -- Ceriodaphnia -- Crustacea -- Daphnia
Аннотация: Understanding the factors that regulate phytoplankton and zooplankton is an important goal of aquatic ecologists; however, much remains unknown because of complex interactions between phytoplankton, zooplankton, and fish. Zooplankton, in particular cladocerans, can be regulated by bottom-up factors either via food quantity or food quality in terms of polyunsaturated fatty acids (PUFA) or phosphorus (P) contents in phytoplankton. Fish can recycle nutrients and in turn change the PUFA and P contents of algal resources, thus modifying bottom-up regulation. Furthermore, fish can change phytoplankton structure through consumption of cladocerans which selectively graze phytoplankton. We conducted a mesocosm (300 L) experiment to determine how trophic state and fish affected crustacean dynamics. The mesocosms were filled with water containing natural plankton from the eutrophic Lake Jorzec and mesotrophic Lake Majcz (Northeastern Poland), and we manipulated fish presence/absence. We also conducted a complementary life-table experiment to determine how trophic state and fish nonconsumptively affected demographic parameters of the dominant cladocerans in the mesocosms. Small and large cladoceran species responded differently to food quantity and quality. Small-bodied Ceriodaphnia were regulated mainly by resource concentrations (i.e., food quantity), while large species were limited by PUFAs (i.e., food quality). Fish likely increased food quality in terms of PUFA, primarily eicosapentaenoic acids (EPA), thus providing conditions for more successful development of Daphnia than in the fish-free treatments. Phosphorus in the seston was likely limiting for zooplankton. However, food quality in terms of phosphorus was likely less important than PUFA because zooplankton can accumulate nutrients in their body. © 2019 by the authors.

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Держатели документа:
Institute of Ecology and Evolution, Russian Academy of Sciences, Leninsky Prospect 33, Moscow, 119071, Russian Federation
Papanin Institute for Biology of Inland Waters, Russian Academy of Sciences, Borok, 152742, Russian Federation
Department of Hydrobiology, Institute of Biology, University of Bialystok, Ciolkowskiego 1J, Bialystok, 15-245, Poland
Institute of Biophysics of Federal Research Centre, Krasnoyarsk Science Centre of Siberian Branch of Russian Academy of Sciences, Akademgorodok, Krasnoyarsk, 660036, Russian Federation
Siberian Federal University, Svobodny Av. 79, Krasnoyarsk, 660041, Russian Federation
Department of Hydrobiology, Faculty of Biology, Biological and Chemical Research Center, University of Warsaw, Zwirki i Wigury 101, Warsaw, 02-089, Poland
The Scientific and Practical Center for Bioresources, National Academy of Sciences of Belarus, Minsk, 220072, Belarus
Department of Integrative Biology, Oklahoma State University, Stillwater, OK 74078, United States

Доп.точки доступа:
Feniova, I.; Sakharova, E.; Karpowicz, M.; Gladyshev, M. I.; Sushchik, N. N.; Dawidowicz, P.; Gorelysheva, Z.; Gorniak, A.; Stroinov, Y.; Dzialowski, A.

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Efficiency of Transfer of Essential Substances from Phytoplankton to Planktonic Crustaceans in Mesotrophic Conditions / I. Y. Feniova, E. G. Sakharova, Z. F. Buseva [et al.] // Inland Water Biol. - 2021. - Vol. 14, Is. 1. - P49-59, DOI 10.1134/S1995082920040033 . - ISSN 1995-0829
Кл.слова (ненормированные):
carbon -- efficiency of transfer of substances -- fish -- mesocosms -- mesotrophic conditions -- nitrogen -- phosphorus -- phytoplankton -- planktonic crustaceans -- primary and secondary production
Аннотация: Abstract: We assessed the efficiency of the transfer of essential substances (carbon, phosphorus, nitrogen, and fatty acids (FA), including polyunsaturated fatty acids (PUFAs)) from phytoplankton to planktonic crustaceans in experimental mesocosms in the presence and absence of fish. The experiments were conducted under mesotrophic conditions in 300 L mesocosms. We have found that transfer efficiencies from producers to consumers are different for different substances. In particular, FA, including PUFAs, are transferred less efficiently than carbon. In contrast, the efficiency of nutrient transfer, especially phosphorus, is higher than that of carbon. This evidences that zooplankton can accumulate nutrients, increasing their quality as a resource for higher trophic levels. Fish significantly reduced the efficiency of carbon transfer from phytoplankton to zooplankton per unit of water volume, but did not affect the transfer of substances per unit of biomass. Thus, the quality of zooplankton as a food resource for higher trophic levels did not decrease in the presence of fish, despite the decline in the efficiency of the transfer of the essential substances per unit of water volume under their influence. Since the efficiency of essential substances transfered from phytoplankton to zooplankton determines the functioning of the entire trophic web, we should seek ways to increase it. © 2021, Pleiades Publishing, Ltd.

Scopus
Держатели документа:
Severtsov Institute of Ecology and Evolution, Russian Academy of Sciences, Moscow, Russian Federation
Papanin Institute for Biology of Inland Waters, Russian Academy of Sciences, Nekouzskii raion, Yaroslavl oblast, Borok, Russian Federation
Scientific and Practical Center for Bioresources, National Academy of Sciences of Belarus, Minsk, Belarus
Institute of Biophysics of Federal Research Centre, Krasnoyarsk Science Centre, Siberian Branch, Russian Academy of Sciences, Akademgorodok, Krasnoyarsk, Russian Federation
Siberian Federal University, Krasnoyarsk, Russian Federation
Department of Hydrobiology, Institute of Biology, University of Bialystok, Bialystok, Poland

Доп.точки доступа:
Feniova, I. Y.; Sakharova, E. G.; Buseva, Z. F.; Gladyshev, M. I.; Sushchik, N. N.; Gorelysheva, Z. I.; Karpowicz, M.; Semenchenko, V. P.

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РУБ Marine & Freshwater Biology

Кл.слова (ненормированные):
primary and secondary production -- carbon -- nitrogen -- phosphorus -- phytoplankton -- planktonic crustaceans -- fish -- mesotrophic conditions -- efficiency of transfer of substances -- mesocosms
Аннотация: We assessed the efficiency of the transfer of essential substances (carbon, phosphorus, nitrogen, and fatty acids (FA), including polyunsaturated fatty acids (PUFAs)) from phytoplankton to planktonic crustaceans in experimental mesocosms in the presence and absence of fish. The experiments were conducted under mesotrophic conditions in 300 L mesocosms. We have found that transfer efficiencies from producers to consumers are different for different substances. In particular, FA, including PUFAs, are transferred less efficiently than carbon. In contrast, the efficiency of nutrient transfer, especially phosphorus, is higher than that of carbon. This evidences that zooplankton can accumulate nutrients, increasing their quality as a resource for higher trophic levels. Fish significantly reduced the efficiency of carbon transfer from phytoplankton to zooplankton per unit of water volume, but did not affect the transfer of substances per unit of biomass. Thus, the quality of zooplankton as a food resource for higher trophic levels did not decrease in the presence of fish, despite the decline in the efficiency of the transfer of the essential substances per unit of water volume under their influence. Since the efficiency of essential substances transfered from phytoplankton to zooplankton determines the functioning of the entire trophic web, we should seek ways to increase it.

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Держатели документа:
Russian Acad Sci, Severtsov Inst Ecol & Evolut, Moscow, Russia.
Russian Acad Sci, Papanin Inst Biol Inland Waters, Nekouzskii Raion, Yaroslavl Oblas, Russia.
Natl Acad Sci Belarus, Sci & Pract Ctr Bioresources, Minsk, BELARUS.
Russian Acad Sci, Krasnoyarsk Sci Ctr, Inst Biophys, Fed Res Ctr,Siberian Branch, Krasnoyarsk, Russia.
Siberian Fed Univ, Krasnoyarsk, Russia.
Univ Bialystok, Inst Biol, Dept Hydrobiol, Bialystok, Poland.

Доп.точки доступа:
Feniova, I. Yu; Sakharova, E. G.; Buseva, Zh F.; Gladyshev, M., I; Sushchik, N. N.; Gorelysheva, Z., I; Karpowicz, M.; Semenchenko, V. P.; Polish National Science Centre [UMO-506 2016/21/B/NZ8/00434]; Russian Foundation for Basic ResearchRussian Foundation for Basic Research (RFBR) [18-5400002 Bel_a]; Belarusian Republican Foundation for Fundamental Research [B18R004]; Russian Science FoundationRussian Science Foundation (RSF) [16-14-10323]; [AAAA-A18-118012690096-1]

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EFFECTS 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 [и др.] // Zool. Zhurnal. - 2021. - Vol. 100, Is. 2. - С. 194-208, DOI 10.31857/S0044513421020215. - Cited References:49 . - ISSN 0044-5134

РУБ Zoology
Рубрики:
FATTY-ACIDS
   FOOD QUALITY
   FRESH-WATER
   ZEBRA MUSSELS
   PHOSPHORUS
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 to regulate planktonic communities are very likely to affect the efficiency of the transfer of basic elements and substances from phytoplankton to zoo plankton. In experimental mesocosms filled with water from an 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 (FA) 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 to primary production, expressed in liters and per biomass unit in percent. The efficiency expressed per liter characterizes the productivity of the water body, while the efficiency expressed per biomass unit indicates the effectiveness of aquatic species to transfer biologically valuable substances from one trophic level to another. We found that phytoplankton-zooplankton-fish interactions are determined not only by predator-prey relationships, but also are affected by the quality of both phytoplankton and zooplankton, measured as the contents of phosphorus, nitrogen, PUFA and FA in their biomass. We showed that, in the presence of fish, the transfer efficiency of carbon, phosphorus, nitrogen, eicosapentaenoic acid (EPA), docosahexaenoic acid (DHA), FA per biomass unit from phytoplankton to zooplankton was increased two-fold, 12.4-fold, 2,5-fold, 12.4-fold, 7.4-fold, and 10-fold, respectively, relative to control. This provides the sustainability of the functioning of the ecosystem under fish pressure. Such a mechanism prevents zooplankton over-exploitation by fish and enables to prolong the food chain.

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Держатели документа:
Russian Acad Sci, Inst Ecol & Evolut, Moscow 119071, Russia.
Russian Acad Sci, Papanin Inst Biol Inland Waters, Borok 152742, Russia.
Russian Acad Sci, Fed Res Ctr, Krasnoyarsk Sci Ctr, Inst Biophys, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, Krasnoyarsk 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.

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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.

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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

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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]

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