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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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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.

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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]

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