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Characteristics of fatty acid composition of Gammarus lacustris inhabiting lakes with and without fish

Abstract

The effect of a biotic factor—the presence of predatory fish in water—on the composition and content of fatty acids in crustaceans was studied in the populations of the lake amphipod Gammarus lacustris from two lakes with fish and three lakes without fish. It was found that, at an overall increase in the quantity and quality of food resources (namely, increase in the content of eicosapentaenoic acid and docosahexaenoic acid (DHA) in the biomass), the relative rate of DHA accumulation in gammarids in the lakes without fish is higher than in the lake with fish.

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Correspondence to O. N. Makhutova.

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Original Russian Text © O.N. Makhutova, T.A. Sharapova, G.S. Kalachova, S.P. Shulepina, M.I. Gladyshev, 2016, published in Doklady Akademii Nauk, 2016, Vol. 466, No. 2, pp. 225–227.

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Makhutova, O.N., Sharapova, T.A., Kalachova, G.S. et al. Characteristics of fatty acid composition of Gammarus lacustris inhabiting lakes with and without fish. Dokl Biochem Biophys 466, 20–22 (2016). https://doi.org/10.1134/S1607672916010063

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  • DOI: https://doi.org/10.1134/S1607672916010063

Keywords

  • Docosahexaenoic Acid
  • Littoral Zone
  • Biotic Factor
  • DOKLADY Biochemistry
  • Angular Coefficient