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Hydrobiological Journal
SJR: 0.227 SNIP: 0.901 CiteScore™: 0.5

ISSN Print: 0018-8166
ISSN Online: 1943-5991

Hydrobiological Journal

DOI: 10.1615/HydrobJ.v36.i5.80
4 pages

Intravital Excretion of Organic Matter by Phytoplankton in Three Water Bodies of Different Trophicity (Methodical Aspects)

A. P. Sadchikov
Moscow State University, Moscow, Russia
A. A. Makarov
Moscow State University, Moscow, Russia


It is necessary to bubble the experimental and control samples simultaneously for removing the residual 14CO2 after its consumption by algae. The control sample is a nonbacterial preparation, to which the same quantity of NaH14CO3 was added as to the control sample and which was subjected to the same operations. The quantity of dissolved organic matter excreted by algae is calculated as a difference between control and experimental values.

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