نتایج جستجو برای: ceratophyllum
تعداد نتایج: 178 فیلتر نتایج به سال:
Cyanobacterial blooms can cause severe ecological and health problems in drinking water reservoirs. To alleviate this problem, allelopathically active submerged macrophytes be used to reduce cyanobacterial growth. Accordingly, study aimed evaluate the sensitivity of strains Microcystis aeruginosa complex isolated from reservoirs with presence absence allelochemicals Ceratophyllum demersum. A co...
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...
2/3 of the reservoir surface area was approximately covered with dense populations of Myriophyllum, Ceratophyllum and Potamogeton species. The headwaters of the reservoir were considered as hard water and had both carbonatic and non-carbonatic hardness. When they were exposed to lentic condition of the reservoir and its intensive photosynthetic activities of macrophyte communities, the bicarbon...
In the present study, effects of NaCl concentrations (0, 20, 40 and 80 mM) were investigated on Ceratophyllum demersum. Macronutrients N, P and K and micronutrients Zn and Cu were significantly decreased by NaCl salinity. In general, however, Fe and Mn contents of macrophyte tissues increased. As a result, NaCl toxicity disturbed the uptake and translocation of macro and micronutrients in the m...
We aimed to determine the effects of water level and habitat heterogeneity on gastropod fauna in littoral zone, differentiation functional feeding guilds (FFG) gastropods. Two periods were analyzed: 2012 (low level, LWL) 2013 (high HWL) zone two shallow waterbodies (Sutla backwater, NW Croatia). Waterbody S1, covered with Ceratophyllum demersum, was sampled macrophyte stands, benthal area, whil...
The loss of nitrogen and phosphate fertilizers in agricultural runoff is a global environmental problem, attracting worldwide attention. In the last decades, constructed wetland has been increasingly used for mitigating from runoff, while substrate, plants, structure design remain far clearly understood. this paper, optimum substrates plant species were identified by reviewing their treatment c...
introduction: with increasing of population and the valuable water resource pollutions, a demand has been felt for new and inexpensive methods in order to remediation and improving of water quality. cadmium is a trace element. in low concentration, this heavy metal is harmful to life, and considered as a dangerous pollutant. cadmium leads to pollution and reduction of water quality; sometimes e...
The preservation of water resources in modern urbanized society is a major concern. In this study, floating constructed wetland (FWT) pilot plant was designed and for the treatment polluted wastewater drain. A series experiments were run continuously year pilot-scale FWTs semi-arid area located Egypt’s Delta. Four aquatic species (Eichhornia, Ceratophyllum, Pistia stratiotes, Nymphaea lotus) us...
Abstract The recovery or reconstruction of aquatic vegetation has recently been reported as a result water quality improvement after anthropogenic eutrophication. objectives this study were: to investigate long-term trends in abundance relation decreasing fertility and present new directions changes the submerged structure, species richness, biodiversity Lake Kuźnickie (western Poland) with per...
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