Abstract In this study, the CCHE2D model was used to analyze flow patterns in Tigris River Baghdad city around a water treatment plant. To end, calibrated and validated steady-state using relevant boundary conditions. The initial surface level at Sarai station for three discharges of 289, 530, 870 m 3 /s. Hence, appropriate manning roughness modulus equivalent mixing length turbulent models wer...

This study included the selection of three stations, two them on Tigris River passing through city Samarra, and second station representing industrial wastewater - Samarra. The period was for six months, starting from October 2021 until March 2022. knowing chemical, physical biological properties plant river water observing effect quality in River. chemical factors pH, dissolved oxygen requirem...

Flood forecasting and management are one of the most important strategies necessary for water resource decision planners in combating flood problems. The Muskingum model is popular widely used applications purpose predicting routing. particle swarm optimization (PSO) methodology was to estimate coefficients nonlinear this study, comparing results with methods genetic algorithm (GA), harmony sea...

The distribution of some heavy metals in three different organs of mullet, Liza abu, and catfish, Silurus triostegus, from Atatürk Dam Lake located on Euphrates (Turkey) was studied. Co and Mo concentrations were below limits of detection in all fish organs, whereas Ni was also below limits in organs of mullet. The metal accumulation in the liver and gill of L. abu and S. triostegus was found t...

Turcinoemacheilus himalaya, new species, is described from the Koshi and Gandaki River basins of Nepal. The new species is distinguished from its hypothesised congener, Turcinoemacheilus kosswigi, from the Euphrates, Tigris and Karoun basins of the Middle East, by the presence of small scales on the posterior half of its body (v. absence of all scales), its shorter caudal peduncle (caudal pedun...

During the 1st quarter of 2019, northern and middle parts Iraq received a huge amount rain due to harsh storm. The Iraqi cities affected are those located on tributaries river Tigris. heavy also western region Iran adjacent Iraq. resultant flood wind seemed have destroyed aquaculture facilities in caused an escape fish different age groups. This study reports presence one specimen Salmo caspius...

With fewer than 200 tigers (Panthera tigris tigris) left in Nepal, that are generally confined to five protected areas across the Terai Arc Landscape, genetic studies are needed to provide crucial information on diversity and connectivity for devising an effective country-wide tiger conservation strategy. As part of the Nepal Tiger Genome Project, we studied landscape change, genetic variation,...

The Iranian Persian chub is an endemic species of the family Cyprinidae known only from few localities in drainages of Southern Iran. It was originally described in the genus Pseudophoxinus as (Pseudophoxinus persidis) and then Petroleuciscus (as Petroleuciscus persidis). In this study, we examined phylogenetic relationships of the Iranian Persian chubwith other relatives in the family Cyprinid...