Gut content analysis of Gammarus lacustris from a Siberian lake using biochemical and biophysical methods

Тип публикации: статья из журнала

Год издания: 2000

Идентификатор DOI: 10.1023/A:1004036111433

Ключевые слова: fatty acid composition; viable gut passage; chlorophyll fluorescence, Chlorophyll fluorescence, Fatty acid composition, Viable gut passage, crustacean, diet, saline lake, seston, stomach content, Russian Federation

Аннотация: We studied the gut contents of Gammarus lacustris from the littoral of Shira lake, a Siberian salt lake, by microscopic analysis in conjunction with measuring of fluorescence of chlorophyll and composition of fatty acids. Gammarus ingested primarily fresh seston, probably settled on the bottom. Additionally, the amphipods obtained essential polyunsaturated fatty acids of omega 3 family by selectively consuming bottom sediment particles. A considerable part of the ingested seston comprised cells of Botryococcus sp., which passed the intestinal tract in living form and their photosynthetic activity increased. This viable gut passage was likely one of the causes of bloom of Botryococcus in the littoral. Unlike a number of literature data, there was no selective digestion of any fatty acid species, including polyunsaturated acids, in the intestinal tract.

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Издание

Журнал: Hydrobiologia

Выпуск журнала: Vol. 431, Is. 2-3

Номера страниц: 155-163

ISSN журнала: 00188158

Место издания: Dordrecht

Издатель: Kluwer academic publ

Авторы

  • Gladyshev M.I. (Institute of Biophysics,Siberian Branch of Russian Academy of Sciences,Akademgorodok)
  • Emelianova A.Y. (Institute of Biophysics,Siberian Branch of Russian Academy of Sciences,Akademgorodok)
  • Kalachova G.S. (Institute of Biophysics,Siberian Branch of Russian Academy of Sciences,Akademgorodok)
  • Zotina T.A. (Institute of Biophysics,Siberian Branch of Russian Academy of Sciences,Akademgorodok)
  • Gaevsky N.A. (Krasnoyarsk State University)
  • Zhilenkov M.D. (Krasnoyarsk State University; Institute of Biophysics, Siberian Branch of Russian Academy of Sciences, Akademgorodok, Krasnoyarsk, 660036, Russian Federation)

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