Efficiency of Transfer of Essential Substances from Phytoplankton to Planktonic Crustaceans in Mesotrophic Conditions | Научно-инновационный портал СФУ

Efficiency of Transfer of Essential Substances from Phytoplankton to Planktonic Crustaceans in Mesotrophic Conditions

Тип публикации: статья из журнала

Год издания: 2021

Идентификатор DOI: 10.1134/S1995082920040033

Ключевые слова: 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.

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Издание

Журнал: Inland Water Biology

Выпуск журнала: Vol. 14, Is. 1

Номера страниц: 49-59

ISSN журнала: 19950829

Издатель: Pleiades journals

Авторы

  • Feniova I.Yu (Russian Acad Sci, Severtsov Inst Ecol & Evolut, Moscow, Russia)
  • Sakharova E.G. (Russian Acad Sci, Papanin Inst Biol Inland Waters, Nekouzskii Raion, Yaroslavl Oblas, Russia)
  • Buseva Zh F. (Natl Acad Sci Belarus, Sci & Pract Ctr Bioresources, Minsk, BELARUS)
  • Gladyshev M.I (Russian Acad Sci, Krasnoyarsk Sci Ctr, Inst Biophys, Fed Res Ctr,Siberian Branch, Krasnoyarsk, Russia; Siberian Fed Univ, Krasnoyarsk, Russia)
  • Sushchik N.N. (Russian Acad Sci, Krasnoyarsk Sci Ctr, Inst Biophys, Fed Res Ctr,Siberian Branch, Krasnoyarsk, Russia; Siberian Fed Univ, Krasnoyarsk, Russia)
  • Gorelysheva Z.I (Natl Acad Sci Belarus, Sci & Pract Ctr Bioresources, Minsk, BELARUS)
  • Karpowicz M. (Univ Bialystok, Inst Biol, Dept Hydrobiol, Bialystok, Poland)
  • Semenchenko V.P. (Natl Acad Sci Belarus, Sci & Pract Ctr Bioresources, Minsk, BELARUS)

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