Contemporary Problems of Ecology

, Volume 3, Issue 5, pp 522–527

Attitude of Baikal and Palearctic amphipods to oxygen as a factor of environment and mechanism of adaptation to its lowered level

  • M. A. Timofeyev
  • K. A. Kirichenko
  • Zh. M. Shatilina
  • A. V. Rokhin
  • T. P. Pobezhimova
Article

DOI: 10.1134/S1995425510050036

Cite this article as:
Timofeyev, M.A., Kirichenko, K.A., Shatilina, Z.M. et al. Contemp. Probl. Ecol. (2010) 3: 522. doi:10.1134/S1995425510050036
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Abstract

The paper presents the materials of a comparative study of characteristics of anaerobic mechanisms use under the conditions of lowered oxygen content by Baikal amphipods Eulimnogammarus vittatus (Dyb.), E. cyaneus (Dyb.), as well as by Palearctic Gammarus lacustris Sars. It is shown that the system of anaerobic metabolism works most effectively for Palearctic G. lacustris. This species is characterized by the least degree of use of low-efficient way of energy production—anaerobic lipolysis, and the highest degree of use of the most efficient way of energy production under the conditions of low oxygen content-anaerobic succinate production. For the Baikal species that are less resistant to the lowered level of oxygen we show more expressed induction of anaerobic lipolysis and lower degree of engagement of anaerobic succinate production.

The degree of development of anaerobic processes in amphipods determines the degree of resistance to hypoxia and is related to ecological characteristics of the species.

Key words

amphipods Baikal hypoxia oxygen anaerobic lipolysis succinate Eulimnogammarus vittatus Eulimnogammarus cyaneus Gammarus lacustris 

Copyright information

© Pleiades Publishing, Ltd. 2010

Authors and Affiliations

  • M. A. Timofeyev
    • 1
    • 2
  • K. A. Kirichenko
    • 3
  • Zh. M. Shatilina
    • 1
    • 2
  • A. V. Rokhin
    • 2
  • T. P. Pobezhimova
    • 3
  1. 1.Baikal Research CentreIrkutskRussia
  2. 2.Irkutsk State UniversityIrkutskRussia
  3. 3.Siberian Institute of Physiology and Biochemistry of PlantsSiberian Branch of the Russian Academy of SciencesIrkutskRussia

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