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

The flow of long-chain polyunsaturated fatty acids (PUFA) 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 of 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 mean for two 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.

Keywords

Anura, metamorphs, polyunsaturated fat acids, export to terrestrial ecosystems

Received

13.10.2018

Publication date

14.10.2018

Number of characters

633

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GOST	Yermokhin M., Sushchik N., Tabachishin V., Kalacheva G., Kolmakova A., Gladyshev M. Amphibia as a Vector of Transfer of Long-Chain Polyunsaturated Omega-3 Fatty Acids from Aquatic to Terrestrial Ecosystems // Doklady Akademii nauk – 2018. – V. 481. – Issue 2 C. 216-218 [Electronic resource]. URL: http://ras.jes.su/dan/s207987840000203-2-2-en (circulation date: 08.05.2024). DOI: 10.31857/S086956520001208-1
MLA	Yermokhin, M., Sushchik, N., Tabachishin, V., Kalacheva, G., Kolmakova, A., Gladyshev, M. "Amphibia as a Vector of Transfer of Long-Chain Polyunsaturated Omega-3 Fatty Acids from Aquatic to Terrestrial Ecosystems." Doklady Akademii nauk 481.2 (2018):216-218. DOI: 10.31857/S086956520001208-1
APA	Yermokhin M., Sushchik N., Tabachishin V., Kalacheva G., Kolmakova A., Gladyshev M. (2018). Amphibia as a Vector of Transfer of Long-Chain Polyunsaturated Omega-3 Fatty Acids from Aquatic to Terrestrial Ecosystems. Doklady Akademii nauk 481(2), pp.216-218 DOI: 10.31857/S086956520001208-1

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