Spatial changes in carbon and nitrogen stable isotopes of the plankton food web in a saline lake ecosystem

Hideyuki Doi, Elena I. Zuykova, Eisuke Kikuchi, Shuichi Shikano, Keiichi Kanou, Natalia Yurlova, Elena Yadrenkina

Research output: Contribution to journalArticlepeer-review

21 Citations (Scopus)

Abstract

We investigated spatial changes in the isotope ratios of the plankton food web in Lake Chany, Siberia, Russia, especially at an estuarine transition zone of the lake. The δ13C values of particulate organic matter (POM) varied among the sampling sites, and increased with increasing pH of the lake water. This may reflect a shift by phytoplankton from using CO2 to using bicarbonate for photosynthesis with increasing pH. The δ13C values of zooplankton community also changed at each site along with those of the POM. This was indicative of carbon isotope changes of plankton food webs between the stations along an environmental gradient.

Original languageEnglish
Pages (from-to)395-400
Number of pages6
JournalHydrobiologia
Volume571
Issue number1
DOIs
Publication statusPublished - 2006 Nov

Keywords

  • Daphnia
  • Estuarine zone
  • Lake Chany
  • POM
  • Phytoplankton
  • Spatial scales

ASJC Scopus subject areas

  • Aquatic Science

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