نتایج جستجو برای: eutrophic reservoir

تعداد نتایج: 44008  

2017
Anusha Balangoda

Email: [email protected] Abstract: To evaluate the diurnal and seasonal Dissolved Oxygen (DO) variations and their effects on water quality, a comprehensive study was conducted in a eutrophic polymictic reservoir under artificially aerated and non-aerated conditions. The effect of aeration among sampling locations and along the water column of DO and DO saturation and diurnal variation...

2017
Wei Huang Xing Chen Xia Jiang Binghui Zheng

Sediment microbial communities play an important role in lake trophic status. This study determined millions of Illumina reads (16S rRNA gene amplicons) to compare the bacterial communities in moderately eutrophic, lightly eutrophic, and moderately trophic regions using a technically consistent approach. The results indicated that the sediments from moderately eutrophic and trophic lake had the...

Journal: :international journal of environmental research 0
e.o. okuku kenya marine and fisheries research institute, p.o. box 81651, mombasa, kenya, soil and water management division, faculty of bioscience engineering, katholike universiteit b. ohowa kenya marine and fisheries research institute, p.o. box 81651, mombasa, kenya s.n. mwangi kenya marine and fisheries research institute, p.o. box 81651, mombasa, kenya, university of nairobi, p.o. box 30197, g.p.o, nairobi, kenya d. munga mombasa polytechnic university, p.o. box 90420- 80100, mombasa, kenya l.i. kiteresi kenya marine and fisheries research institute, p.o. box 81651, mombasa, kenya v.o. wanjeri kenya marine and fisheries research institute, p.o. box 81651, mombasa, kenya s. okumu

this study investigated the effects of sewage discharge on nutrient concentrations and bod5 levels in the coastal waters and sediments ofthe city of mombasa. the results indicated that nutrient concentrations in tudor, mtwapa and makupa creeks were elevated as compared to concentrations in gazi creek (mean ranges of 0.022-0.039mg/l, 0.038-0.163mg/l and 0.034-0.118mg/lphosphates, nitrates and am...

Journal: :Brazilian journal of biology = Revista brasleira de biologia 2015
N A S T Mello P M Maia-Barbosa

The Ibirité reservoir is an urban and eutrophic environment, with regular occurrences of cyanobacteria blooms. The reservoir is warm monomict and remains stratified most of the year, circulating in the dry season (winter). During the hydrological cycle of October/07 to October/08 there were four scenarios with different environmental conditions, which influenced the structure of the zooplankton...

Journal: :European journal of biology 2021

Objective: In this study carried out in Büyükçekmece Reservoir, the composition, distribution, seasonal changes of epiphytic diatoms that live on surfaces plants, and effects environmental parameters these organisms were investigated, it was aimed to reveal water quality reservoir. Materials Methods: order determine diatom species material samples collected from five stations 2019. study, tempe...

Journal: :Water 2023

This study analyses the impact of climate change on inflows, sediment loads, and nutrient inputs to Sabalan dam reservoir, a warm monomictic lake located northwest Iran. For this purpose, Soil Water Assessment Tool (SWAT) was calibrated (2005–2018) validated (2001–2004). Future climate-based data under AR5 emission scenarios were obtained from HadGEM2–ES general circulation model then downscale...

2013
S. Lew M. Lew A. Biedunkiewicz J. Szarek

The effect of pesticide contamination of the littoral zone on the population of bacteria and fungi was analyzed using the example of a eutrophic water reservoir exposed for >30 years to the influence of expired crop-protection chemicals, mainly DDT. For three consecutive years, quantity analyses of bacteria and fungi were conducted and the composition of the microorganism population analyzed ag...

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