Краткое описание

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.