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  1. No Access

    Article

    Long-Chain Alkenones in Sediments of Lake Utichye-3 (Southern Siberia, Khakassia) as a Paleo-Indicator of Climate Change

    Long-chain alkenones are produced exclusively by certain species of microalgae Isochrysidales of the order of haptophytes (Haptophyta). These are polyunsaturated methyl and ethyl ketones C35–C42 with 2–4 trans...

    A. O. Bulkhin, V. V. Zykov, D. N. Marchenko… in Contemporary Problems of Ecology (2024)

  2. No Access

    Article

    Long-Chain Alkenones in Saline Meromictic Lakes of the North Minusinsk Depression (Southern Siberia): First Knowledge and Possible Correlation with Water-Level Dynamics

    Long-chain alkenones (LCAs)—lipides produced by some microalgae of the Haptophyta group in seas and continental water bodies—are promising paleomarkers of climate changes because they are well-preserved in bot...

    D. Y. Rogozin, A. O. Bulkhin, V. V. Zykov… in Contemporary Problems of Ecology (2020)

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    Article

    Meromixis and Seasonal Dynamics of Vertical Structure of Lake Uchum (South Siberia)

    The seasonal dynamics of the vertical structure of small saline Lake Uchum, located in the steppe arid zone of the south of Siberia (Krasnoyarsk krai), has been studied in detail for the first time. This lake ...

    D. Y. Rogozin, V. V. Zykov, E. A. Ivanova… in Contemporary Problems of Ecology (2018)

  4. No Access

    Article

    Carotenoids in bottom sediments of lake Shira as a paleoindicator for reconstruction of Lake States in Khakassiya, Russia

    The concentrations of carotenoids buried in the bottom sediments of Lake Shira (Siberia, Khakassiya) have analyzed for the period of the last 2300 years. The bottom sediments were found to contain carotenoids,...

    V. V. Zykov, D. Yu. Rogozin, I. A. Kalugin… in Contemporary Problems of Ecology (2012)