Content of polyunsaturated fatty acids essential for fish nutrition in zoobenthos species

Описание

Тип публикации: статья из журнала

Год издания: 2016

Идентификатор DOI: 10.1086/688760

Ключевые слова: fatty acids, invertebrates, invasion, fish, food quality, Bryozoa, Coleoptera, Crustacea, Dytiscus, Ephemeroptera, Gammaridae, Hirudinea, Insecta, Invertebrata, Mollusca, Plumatella emarginata, Polychaeta, Trichoptera, Turbellaria

Аннотация: Content of eicosapentaenoic acid (EPA, 20:5n-3) and docosahexaenoic acid (DHA, 22:6n-3) and the n-3/n-6 ratio are important indicators of nutritive value of aquatic invertebrates as food for fish. We studied fatty acid (FA) content and composition of 68 zoobenthic species. Benthic invertebrates differed significantly in their conteПоказать полностьюnts of EPA and DHA and n-3/n-6 ratios. The most valuable food for fish were Insecta, especially Ephemeroptera and Trichoptera, Gammaridae, and Turbellaria (Dendrocaelopsis sp.). The invertebrates of low food quality for fish were Hirudinea, Mollusca, Oligochaeta, Bryozoa (Plumatella emarginata), and Coleoptera (Dytiscus lapponicus). Our data suggest that the recent and ongoing global replacement of native species, mainly Insecta, by invaders, mostly represented by Mollusca, Crustacea, Polychaeta, Oligochaeta, Bryozoa, and Hirudinea, probably will reduce the nutritive value of food sources for benthivorous fish. In addition, some of the taxa studied have peculiar FAs, which may be useful as their markers in trophic webs. Thus, 20:1n-13, 20:2n-6, 22:5n-3, and 22:6n-3 are likely to be considered markers of Mollusca, Hirudinea, Turbellaria, and Gammaridae, respectively, for tracing food webs in freshwater ecosystems.

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Издание

Журнал: FRESHWATER SCIENCE

Выпуск журнала: Vol. 35, Is. 4

Номера страниц: 1222-1234

ISSN журнала: 21619549

Место издания: CHICAGO

Издатель: UNIV CHICAGO PRESS

Авторы

  • Makhutova O.N. (Institute of Biophysics,Siberian Branch of Russian Academy of Sciences)
  • Dubovskaya O.P. (Siberian Federal University)
  • Sushchik N.N. (Siberian Federal University)
  • Kalachova G.S. (Institute of Biophysics,Siberian Branch of Russian Academy of Sciences)
  • Gladyshev M.I. (Siberian Federal University)
  • Shulepina S.P. (Siberian Federal University)
  • Sharapova T.A. (Institute of Problems of Development of the North,Siberian Branch of Russian Academy of Sciences)
  • Baturina M.A. (Institute of Biology,Komi Scientific Center,Ural Division,Russian Academy of Science)
  • Pryanichnikova E.G. (Institute for Biology of Inland Waters,Russian Academy of Science)

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