Fatty acid composition of fish species with different feeding habits from an Arctic Lake |
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| Authors: | M I Gladyshev N N Sushchik L A Glushchenko V A Zadelenov A E Rudchenko Y Y Dgebuadze |
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| Institution: | 1.Institute of Biophysics, Krasnoyarsk Research Center, Siberian Branch,Russian Academy of Sciences,Krasnoyarsk,Russia;2.Siberian Federal University,Krasnoyarsk,Russia;3.Research Institute of Ecology of Fishery Water Bodies,Krasnoyarsk,Russia;4.Joint Management Board of Taimyr Nature Reserves,Norilsk,Russia;5.Severtsov Institute of Ecology and Evolution,Russian Academy of Sciences,Moscow,Russia;6.Lomonosov Moscow State University,Moscow,Russia |
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| Abstract: | We compared the composition and content of fatty acids (FAs) in fish with different feeding habits (sardine (least) cisco Coregonus sardinella, goggle-eyed charr (pucheglazka) form of Salvelinus alpinus complex, humpback whitefish Coregonus pidschian, broad whitefish Coregonus nasus, boganid charr Salvelinus boganidae, and northern pike Esox lucius from an Arctic Lake. Feeding habits of the studied fish (planktivore, benthivore, or piscivore) significantly affected the composition of biomarker fatty acids and the ratio of stable isotopes of carbon and nitrogen in their biomass. The hypothesis on a higher content of eicosapentaenoic and docosahexaenoic acids in the fish of higher trophic level (piscivores) when compared within the same taxonomic group (order Salmoniformes) was confirmed. |
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