Preliminary studies on carbon and nitrogen stable isotope ratios analysis of food web in Lake Chany of Western Siberia

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概要

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• Lake Chany is an inland moderately saline lake in Western Siberia. Itconsists of three lakes, Bolshye (Large) Chany, Malye (Small) Chany and Yarkul Pool. Field survey of Lake Chany was carried out at four parts of the lake with different salinity to analyze their food web structures using carbon and nitrogen stable isotope as natusral tracers. The intruding river rigion (St.1) and Malye Chany (St.2) wwkth low salinity (0.9%), the central part of Bolshye Chany (St.3) with salinity of 5.7% and the innermost part of Bolshye Chany (St.4) with the highest salinnity of 6.3% were selected as study sites. Comparison of the isotope ratios of benthis incertebrate (Chironomidae; Diptera) among the sampling sites showed the lowest δ13C and δ15N values at St.1 and highest values at St.4. The benthic invertebrates at St.3 showed similar δ13C and δ15N values to those of St.4 and St.1, respectively. Similar trends but different values of the isotope raions among the sampling stations were observed in zooplankton, POM and sediment samples, indicationg the initial substances of the food chains were different at different parts of the lake.

• 信州大学の論文
• 2004-02-28

著者

• Ota Hiroshi

  Graduate School Of Commerce And Management Hitotsubashi University

• DOI Hideyuki

  Graduate School of Life Sciences, Tohoku University

• Kikuchi Eisuke

  Center For Northeast Asian Studies Tohoku University

• SHIKANO Shuichi

  Center for Northeast Asian Studies, Tohoku University

• YURLOVA Natalia

  Institute of Systematics and Ecology of Animals, Siberian Branch of Russian Academy of Sciences

• Shikano Shuichi

  Center For Northeast Asian Studies Tohoku University

• Yurlova Natalia

  Institute Of Systematics And Ecology Of Animals Siberian Branch Of Russian Academy Of Sciences

• Doi Hideyuki

  Graduate School Of Life Sciences Tohoku University

• Kikuchi E

  Center For Northeast Asian Studies Tohoku University

• YADRENKINA Elena

  Institute of Animal Systematics and Ecology, Siberian Branch of Russian Academy Sciences

• ZUYKOVA Elena

  Institute of Animal Systematics and Ecology, Siberian Branch of Russian Academy Sciences

• Zuykova Elena

  Institute Of Animal Systematics And Ecology Siberian Branch Of Russian Academy Sciences

• Yadrenkina Elena

  Institute Of Animal Systematics And Ecology Siberian Branch Of Russian Academy Sciences

• Ota Hiroshi

  Graduate School Of Life Sciences Tohoku University

• Doi Hideyuki

  Institute For Chemistry And Biology Of The Marine Environment Carl-von-ossietzky University Oldenbur

• SHIKANO Shuuichi

  Institute of Animal Systematics and Ecology, Siberian Branch of Russian Academy Sciences

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