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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.i5.20
8 pages

The Role of Biota in the Oxygen Regime of the Limans Adjacent to the Danube (the Case Study of Yalpug Lake)

O. P. Oksiyuk
Institute of Hydrobiology, National Academy of Sciences of Ukraine, Kiev, Ukraine
Yu. I. Karpezo
Institute of Hydrobiology, National Academy of Sciences of Ukraine Kiev, Ukraine
T. N. Dyachenko
Institute of Hydrobiology, National Academy of Sciences of Ukraine, Kiev
V. N. Belokon'
Institute of Hydrobiology, National Academy of Sciences of Ukraine, Kiev, Ukraine

ABSTRACT

Yalpug Lake was adopted as a model of other limans in the Danubian flood-lands having hydrobiological peculiarities and experiencing anthropogenic impact. Values of production-destruction, oxygen exchange of plankton and benthos, and characteristics of macrophytes communities of the lake were under study. It has been shown that plankton and submerged macrophytes play the principal part in forming the oxygen budget of such lakes. The role of higher aquatic vegetation is especially important in the deep limans with a low water transparency. Therefore, anthropogenic factors suppressing vegetation of macrophytes predetermine a negative budget and a depletion of dissolved oxygen in the lake water.


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