نتایج جستجو برای: dissolved oxygen 5 mgl

تعداد نتایج: 1415866  

2007
Edison Barbieri

This study aimed to investigate the toxicological effects of the LAS-C12 on Mugil platanus (mullet). Fishes exposed to 1.0 mg.L for 24, 48, 72, 96 and 120 hours presented significant increase in specific routine metabolism. At the concentration of 0.5 mgL, the active metabolism presented a decreasing trend from 48 h of exposure on. However, only the consumption averages for 72 h were statistica...

2014
Haimanot HABTE Hartmut ECKSTÄDT

Article Type: Full Length Research Article The aim of this investigation was to confirm a trickling filter filled with gravel as an alternative biological process over conventional high cost treatment process with regard to nutrient reduction from brewery wastewater. Steady state evaluation of the trickling filter aerobic and anaerobic biofilm system for nutrient removal was made. The results o...

2009
Barry L. Johnson Karen H. Hagerty

Figure 2.7. The percentage of backwater sampling sites where dissolved oxygen concentrations during winter, at the surface or just below ice cover, were >5 mg/L (1994–2002) for fi ve study reaches of the Figure 2.8. Percent of backwaters that contained suitable habitat for sunfi shes during winter from 1994 and 2002 based on a combination of temperature, dissolved oxygen, and depth in study rea...

ژورنال: علوم آب و خاک 2019

Nowadays, environmental pollutions especially water pollution is increasingly developing. One of the problems of entering the pollutants to rivers is reduction in the concentration of river dissolved oxygen. In order to manage the water resources, amount of dissolved oxygen should be predicted. This study presents a novel equation for simulating the concentration of river dissolved oxygen by ad...

2015
Rachel L. Spietz Cheryl M. Williams Gabrielle Rocap M. Claire Horner-Devine Kay C. Vopel

Pelagic ecosystems can become depleted of dissolved oxygen as a result of both natural processes and anthropogenic effects. As dissolved oxygen concentration decreases, energy shifts from macrofauna to microorganisms, which persist in these hypoxic zones. Oxygen-limited regions are rapidly expanding globally; however, patterns of microbial communities associated with dissolved oxygen gradients ...

Journal: :Indian journal of experimental biology 2014
Anil Sood Harleen Kaur Nadha Sangita Sood Shivani Walia Om Parkash

For ex vitro propagation, seeds of P.pubescens were treated with different concentrations of gibberellic acid (GA3) and germination of seeds was tested both in plastic pots as well as by direct sowing in the nursery beds. Maximum seed germination was achieved when treated with 200 mgL(-1) (w/v) GA3. For in vitro propagation, an exposure of nodal explants from in vitro raised seedlings to 0.2 mg...

Journal: :international journal of environmental research 2015
f. perçin-paçal h. balkıs

abstractthe aim of this study was to determine the ecology of the ostracoda species in the sediments collected from the erdek bay and to observe the relationship between ecological parameters with the number of ostracoda species and individual numbers. sediment and water samples have been collected seasonally from 8 stations of the study area from six different depths (0.3; 1; 5; 10; 20; 30 m)....

2016
Qi Yang Jianwei Wang Ran Liu Zhiqiang Wang Yufeng Li Yifan Zhang Xiaohua Hao Yubo Huang Wen Xie Hongshan Wei

Magnesium isoglycyrrhizinate (MGL) is a new stereoisomer of glycyrrhizic acid, which is clinically used as a hepatoprotective medicine with more potent effects and less side effects than glycyrrhizic acid. This study was designed to evaluate the protective effects and possible mechanism of MGL against concanavalin A (Con A)-induced autoimmune hepatitis. Hepatitis was induced by Con A in C57/6J ...

B. Falahatkar, F. Bagherzadeh Lakani M. Sattari,

In the present study, different oxygen levels were examined in two weight groups of great sturgeon Huso huso including small size (with initial weight 280.9 ± 49.2 g) and large size (with initial weight 1217.9 ± 138.1 g). The fish were kept in hypoxia (2-3 mg/l), normoxia (5-6 mg/l) and hyperoxia (9-10 mg/l) conditions for 8 weeks and then were individually placed in the tanks with oxygen lev...

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