The Role of Aquatic Macrophytes in Hydroecosystems of the Kuibyshev Reservoir (Republic of Tatarstan, Russia)
نویسندگان
چکیده
This article reports on a study to determine the influence of aquatic macrophytes on the formation of phytoplankton and zooplankton communities as well as hydrohemical features in different regions of the Kuibyshev reservoir (Republic of Tatarstan, Russia). It was found that aquatic macrophytes have sanative effect resulting in the reduction amount of some chemical pollutants (petrochemicals, nitrates, ammonium and others). Besides, in those areas of the Kuibyshev reservoir with no deficiency of aquatic macrophytes, there are a decrease numbers of coliform bacteria and algae causing the green scum as well as the increase quantity of zooplankton. The observed phenomenon occurred only during the active vegetation of aqutic macrophytes.
منابع مشابه
Determination of cadmium accumulation capabilities of aquatic macrophytes Ceratophyllum demersum, Bacopa monnieri and Rotala rotundifolia
In the present study, cadmium (Cd) accumulation capabilities of aquatic macrophytes Ceratophyllum demersum, Bacopa monnieri and Rotala rotundifolia were determined after treating both individual and triple macrophytes. The macrophytes were treated with Cd at 0, 0.1, 1 and 10 mg/L concentrations in a controlled chamber for 12-days. Cadmium accumulations increased with increasing Cd concentration...
متن کاملDetermination of cadmium accumulation capabilities of aquatic macrophytes Ceratophyllum demersum, Bacopa monnieri and Rotala rotundifolia
In the present study, cadmium (Cd) accumulation capabilities of aquatic macrophytes Ceratophyllum demersum, Bacopa monnieri and Rotala rotundifolia were determined after treating both individual and triple macrophytes. The macrophytes were treated with Cd at 0, 0.1, 1 and 10 mg/L concentrations in a controlled chamber for 12-days. Cadmium accumulations increased with increasing Cd concentratio...
متن کاملThe Role of Constructive Elements of Iran's Identity in Relations between Iran and Russia
Along the history, relations between Iran and Russia always faced with great changes and transitions and always, the foundation of these relations have been on the base of political, security and military and sometimes economical affairs. Iran and its people have special identity elements like: Persian language, Shiite Islamism, nationalism, regional hegemonies, anti-foreignism and etc, that so...
متن کاملPatterns of the aquatic macrophyte cover in Cachoeira Dourada Reservoir (GO-MG).
The relationship between the aquatic macrophyte cover in upper segments of tributaries and this cover in these tributaries but near the reservoir's main body was tested. Sixteen taxa belonging to 12 families of aquatic macrophytes were recorded in Cachoeira Dourada Reservoir. The most frequent species were Eichhornia azurea (frequency of occurrence=92%; n=37 sites) and E. crassipes (44%). Upper...
متن کاملMorphometry and retention time as forcing functions to establishment and maintenance of aquatic macrophytes in a tropical reservoir.
Macrophytes may constitute an important resource for several chemical, physical and biological processes within aquatic ecosystems. This study considers that in tropical reservoirs with low retention time and with low values of shoreline development (DL), the expansion and persistence of aquatic macrophytes are mainly reported to local conditions (e.g., hydrodynamic and wind exposure) rather th...
متن کامل