Application of <Superscript>13</Superscript>C mineral carbon for assessment of the primary production of organic matter in aquatic environments期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

Application of 13C mineral carbon for assessment of the primary production of organic matter in aquatic environments

Authors:	N. V. Pimenov A. M. Zyakun T. S. Prusakova O. N. Lunina M. V. Ivanov

Affiliation:	(1) Winogradsky Institute of Microbiology, Russian Academy of Sciences, pr. 60-letiya Oktyabrya 7, k. 2, Moscow, 117312, Russia;(2) Skryabin Institute of Biochemistry and Physiology of Microorganisms, Russian Academy of Sciences, pr. Nauki 5, Pushchino, Moscow oblast, 142290, Russia

Abstract:	The possibility of measuring the rates of light and dark CO₂ assimilation using ¹³C carbonate was demonstrated on Lake Kichier (Marii El). The application of methods utilizing the stable ¹³C and the radioactive ¹⁴C isotopes resulted in comparable values of the rates of light and dark CO₂ fixation. Due to its absolute environmental safety, the method with ¹³C mineral carbon can be recommended as an alternative to radioisotope methods for qualitative measurements of CO₂ fixation rates in aquatic ecosystems.

Keywords:	primary production meromictic lakes ¹³C stable isotope method ¹⁴C radioisotope method anoxygenic phototrophs
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