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Doklady Biochemistry and Biophysics

, Volume 481, Issue 1, pp 195–197 | Cite as

Amphibia as a Vector of Transfer of Long-Chain Polyunsaturated Omega-3 Fatty Acids from Aquatic to Terrestrial Ecosystems

  • M. V. Yermokhin
  • N. N. Sushchik
  • V. G. Tabachishin
  • G. S. Kalacheva
  • A. A. Kolmakova
  • M. I. Gladyshev
Biochemistry, Biophysics, and Molecular Biology
  • 21 Downloads

Abstract

The flow of long-chain polyunsaturated fatty acids (PUFAs) of the omega-3 family, namely, eicosapentaenoic acid (20:5n-3, EPA) and docosahexaenoic acid (22:6n-3, DHA), exported by amphibian metamorphs from water to terrestrial ecosystems in the Medveditsa River floodplain, was quantified for the first time. The total biomass export by three amphibian species (Pelobates fuscus, Bombina bombina, and Pelophylax ridibundus) per unit area of the lake surface was 0.594 g/m2 per year (as a mean for 2 years). The biomass flow per unit area of land was 0.726 g/ha per year (0.302 g/ha per year for organic carbon) in 2015–2016. The average annual total removal of EPA + DHA by amphibians from the floodplain lake was 1.47 mg/m2 of water surface area. Due to the high content of EPA and DHA in biomass, amphibians are potentially a valuable food for terrestrial predators having no access to other sources of essential PUFAs.

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Copyright information

© Pleiades Publishing, Ltd. 2018

Authors and Affiliations

  • M. V. Yermokhin
    • 1
  • N. N. Sushchik
    • 2
    • 3
  • V. G. Tabachishin
    • 4
  • G. S. Kalacheva
    • 2
  • A. A. Kolmakova
    • 2
  • M. I. Gladyshev
    • 2
    • 3
  1. 1.Saratov State National Research UniversitySaratovRussia
  2. 2.Institute of Biophysics, Federal Research Center “Krasnoyarsk Science Center,” Siberian BranchRussian Academy of SciencesKrasnoyarskRussia
  3. 3.Siberian Federal UniversityKrasnoyarskRussia
  4. 4.Severtsov Institute of Ecology and Evolution, Saratov BranchRussian Academy of SciencesSaratovRussia

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