From the banks of the Upper Tigris River to the Zagros Highlands.

2016 ◽  
pp. 323-332
Author(s):  
Peter Pfälzner ◽  
Paola Sconzo
Keyword(s):  
Tigris River

First Record of Trichodina magna Van As and Basson, 1989 (Ciliophora: Trichodinidae) from Gills of Blue Tilapia Oreochromis aureus (Steindachner, 1864) in Iraq

2018 ◽  
pp. 59
Author(s):  
Kefah Naser Abdul-Ameer ◽  
Fatima Khalaf Atwan
Keyword(s):  
First Record ◽  
Oreochromis Aureus ◽  
Tigris River ◽  
Blue Tilapia ◽  
First Time

   The Ciliophoran Trichodina magna Van As and Basson, 1989 is recorded for the first time in in Iraq from gills of the blue tilapia Oreochromis aureus (Steindachner, 1864) Iraq from Al-Graiat location on the Tigris River at Baghdad city. The description and measurements of this external parasite as well as its illustrations are given.  

Molecular detection of some toxogenic cyanobacteria in Tigris River in Baghdad–Iraq

2021 ◽  
Author(s):  
Noor Redha Gummaa ◽  
Ahmed Sahi Dwaish ◽  
Israa Hussein Hamzah
Keyword(s):  
Molecular Detection ◽  
Tigris River

scholarly journals Application GIS Software to Determine the Distribution of T.D.S. Concentrations Along the Tigris River

2021 ◽  
Vol 735 (1) ◽  
pp. 012055
Author(s):  
Ali Chabuk ◽  
Salwan Ali Abed ◽  
Hussein A. M. Al-Zubaidi ◽  
Nadhir Al-Ansari ◽  
Ali A. A. Maliki ◽  
...  
Keyword(s):  
Tigris River ◽  
Gis Software

scholarly journals Experimental and numerical modeling to investigate the riverbank’s stability

2021 ◽  
Vol 3 (2) ◽  
Author(s):  
Asad H. Aldefae ◽  
Rusul A. Alkhafaji
Keyword(s):  
Numerical Simulation ◽  
Failure Mechanism ◽  
High Stress ◽  
Physical Models ◽  
Term Condition ◽  
Tigris River ◽  
Soil Settlement ◽  
Failure Angle ◽  
Dangerous Place ◽  
Type Of Failure

AbstractThe purpose of this paper is to assess the failure mechanism of riverbanks due to stream flow experimentally and numerically to avoid recurring landslides by identifying the most dangerous place and treating them by a suitable method. The experiments and the physical models were carried out to study the failure mechanism of riverbank and evaluation of their stability in two cases: short-term condition and long-term condition flow where three models were tested. The Tigris River (Iraq) is considered as a model in this paper in terms of the applied velocity and modeled soil of the banks it was used at the same characteristics in the prototype scale. Also, a numerical simulation was performed using the FLOW-3D program to determine the velocity distribution and to identify the areas subjected to the high stress levels through the water flow. The obtained results in this paper are inspecting of failure mechanism types that occur under the influence of specific limits of flow velocity, which have shown good compatibility with the type of failure in the prototype scale. In addition to calculating the amount of soil erosion, the failure angle, and the amount of soil settlement at the riverbank model is investigated also. The results of experimental work and numerical simulation were well matched, where the standard error rate for Froude number ranged between (1.8%–6.6%), and the flow depth between (2.7%–6.9%).

scholarly journals Study and evaluation the Marshes and surrounding areas in south of Iraq

2020 ◽  
Vol 150 ◽  
pp. 03011
Author(s):  
Husam Al-Nussairi ◽  
Khalida Hassan
Keyword(s):  
Land Degradation ◽  
Agricultural Production ◽  
Drainage Water ◽  
Soil Productivity ◽  
Hydrochemical Characteristics ◽  
Drainage Systems ◽  
Tigris River ◽  
South Of Iraq ◽  
Surrounding Areas ◽  
Southern Iraq

In this study, the marshlands in southern Iraq were investigated, focusing on the Hawizeh Marshlands and adjacent areas, by studying the scenario and quantities of water, in addition to the hydraulic and hydrochemical characteristics. To accomplish the objects of this study the researcher visited some fields, made interview with farmers, specialists, authorities and directorates related to this study. The results of this study indicate that there are a huge problem existed in the drainage systems with absence of natural outlets, the discharges of drainage water is towards Al- Hawizeh marsh which flow back its water into Tigris river through several canals, increasing salinity, scare of water, miss-use of land, lack of governments efforts to promote agricultural production leads to loss of soil productivity and land degradation.

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