Photosynthetic activity of plankton and assessment of gross primary production from measurements of CO2 concentration in surface and bottom water of the Lake Baikal coastal zone

Mikhail V. Panchenko; Valentina M. Domysheva; Dmitrii A. Pestunov; Mariya V. Sakirko; Artem M. Shamrin

doi:10.1117/12.2504497

13 December 2018 Photosynthetic activity of plankton and assessment of gross primary production from measurements of CO₂ concentration in surface and bottom water of the Lake Baikal coastal zone

Mikhail V. Panchenko, Valentina M. Domysheva, Dmitrii A. Pestunov, Mariya V. Sakirko, Artem M. Shamrin

Author Affiliations +

Proceedings Volume 10833, 24th International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics; 108330J (2018) https://doi.org/10.1117/12.2504497
Event: XXIV International Symposium, Atmospheric and Ocean Optics, Atmospheric Physics, 2018, Tomsk, Russian Federation

Abstract

The seasonal dynamics of the СО₂ gas exchange process in the atmosphere-water system is formed as a result of combined action of hydrometeorological conditions and biological rhythms on photosynthesis (production) and destruction of organic matter. The diurnal dynamics of the coefficient of photosynthetic activity, phytoplankton population, and the carbon dioxide concentration in water is analyzed. The Gross Primary Production is estimated with the DIEL method (calculation from the diurnal dynamics of СО2 concentration) in the surface and bottom water of the Baikal coastal zone in the open-water period for three measurement cycles. It is shown that the productivity decreases in the coastal zone from June to December. In terms of the carbon С concentration, it varies from 0.9 to 0.17 mg·dm^-3·day^-1

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Mikhail V. Panchenko, Valentina M. Domysheva, Dmitrii A. Pestunov, Mariya V. Sakirko, and Artem M. Shamrin "Photosynthetic activity of plankton and assessment of gross primary production from measurements of CO₂ concentration in surface and bottom water of the Lake Baikal coastal zone", Proc. SPIE 10833, 24th International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics, 108330J (13 December 2018); https://doi.org/10.1117/12.2504497

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