Сибирский федеральный университет

Тип публикации: статья из журнала

Год издания: 2021

Идентификатор DOI: 10.1134/S1995082921030032

Ключевые слова: carbon, fatty acids, littoral zone, mesotrophic lake, nitrogen, pelagic zone, phosphorus, phytoplankton, polyunsaturated fatty acids, primary and secondary production, zooplankton

Аннотация: Abstract: The efficiency of transfer of essential substances (carbon, phosphorus, nitrogen, and fatty acids (FAs), including polyunsaturated fatty acids (PUFAs)) from phytoplankton to zooplankton in three habitats (pelagic zone and vegetated and unvegetated littoral areas) in mesotrophic Lake Obsterno (Belarus) has been assessed. The efficiency of transfer of substances was calculated as the ratio of their secondary production to primary production per water volume unit and biomass unit. The efficiency per water volume unit can characterize the efficiency of transferring substances in a lake, while the efficiency per biomass unit indicates the ability of zooplankton to accumulate essential substances consumed with the food resources in biomass, i.e. it characterizes the quality of zooplankton as a resource for higher trophic levels. The efficiency of PUFA transfer was lower than the carbon transfer efficiency. On the contrary, the accumulation of nutrients, especially phosphorus, was more effective when compared with the carbon accumulation rate. This indicates that zooplankton serve as a sink for nutrients which are transferred up the trophic webs. The plankton communities in the pelagic zone of mesotrophic lake were found to be more effective in transferring the substances from the primary producers to the consumers than the littoral communities were. © 2021, Pleiades Publishing, Ltd.

Журнал: Inland Water Biology

Выпуск журнала: Vol. 14, Is. 4

Номера страниц: 391-400

ISSN журнала: 19950829

Издатель: Pleiades journals

• Buseva Zh. F. (Natl Acad Sci Belarus Bioresources, Sci & Pract Ctr, Minsk, BELARUS)
• Gladyshev M.I. (Russian Acad Sci, Siberian Branch, Krasnoyarsk Sci Ctr, Fed Res Ctr, Krasnoyarsk, Russia; Siberian Fed Univ, Krasnoyarsk, Russia)
• Sushchik N.N. (Russian Acad Sci, Siberian Branch, Krasnoyarsk Sci Ctr, Fed Res Ctr, Krasnoyarsk, Russia; Siberian Fed Univ, Krasnoyarsk, Russia)
• Sysova E.A. (Natl Acad Sci Belarus Bioresources, Sci & Pract Ctr, Minsk, BELARUS)
• Myagkova K.V. (Natl Acad Sci Belarus Bioresources, Sci & Pract Ctr, Minsk, BELARUS)
• Farahani Sh. B. Gazerani (Natl Acad Sci Belarus Bioresources, Sci & Pract Ctr, Minsk, BELARUS)
• Feniova I.Yu. (Russian Acad Sci, Severtsov Inst Ecol & Evolut, Moscow, Russia)
• Sakharova E.G. (Russian Acad Sci, Papanin Inst Inland Water Biol, Nekouzskii Raion, Yaroslavl Oblas, Russia)
• Semenchenko V.P. (Natl Acad Sci Belarus Bioresources, Sci & Pract Ctr, Minsk, BELARUS)

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