نتایج جستجو برای: sistan basin
تعداد نتایج: 58076 فیلتر نتایج به سال:
paracobitis vignai is a nemacheilid loach endemic to the sistan basin. it occurs in helmand river and its related reservoirs in sistan-va-baluchistan province in southeastern iran and probably in afghanistan. this species is currently endangered due to habitat loss or degradation, damming and droughts. therefore, this paper reviews the available data on taxonomy and distribution of p. vignai , ...
After around a hundred years of being without any record of occurrence of Paracobitis rhadinaea, a species of Nemacheiline loach, in Sistan basin, southeast of Iran, the year 2012 was the turning point of wild life in this area. Twenty-five specimens were caught from Chahnimeh Reservoir, a water body adjacent to the Hamoun Wetland in Sistan basin. Morphometric and meristic characteristics were ...
after around a hundred years of being without any record of occurrence of paracobitis rhadinaea, a species of nemacheiline loach, in sistan basin, southeast of iran, the year 2012 was the turning point of wild life in this area. twenty-five specimens were caught from chahnimeh reservoir, a water body adjacent to the hamoun wetland in sistan basin. morphometric and meristic characteristics were ...
1. introduction wind is one of the important meteorological parameters which have an extensive application in environmental studies. the winds have various spatial and temporal scales regarding to their characteristics and structures. sistan wind as an outstanding low level flow in eastern iran is playing an important role to creation of local and regional climatic features. the sistan wind ini...
paraschistura alta , formerly reported from the eastern part of sistan basin in afghanistan, is reported for the first time from the zahak river in iranian part of this basin and its morphological characteristics, coi barcode and its phylogenetic relationship within other members of the genus paraschistura from iran are provided. all the measured meristic and morphometric characters of seven co...
In recent years, river flow into Sistan dam changed because of construction dams and expansion irrigation areas in the upper Helmand basin. Planning for more heightening Kajaki basin shall intensify severity water shortage Hamun Lake. located at downstream on branch river, power shifts Afghanistan upstream basins absence an integrated authority/management are major problems. Political nature in...
paracobitis rhadinaea , a member of the family nemacheiliidae, originally described by regan in 1906 from sistan basin, is poorely known by the rare materials. the inadequately studied species is redescribed on the base of freshly collected materials. the species differs from all other paracobitis species by combination of the following characters: stout and elongated body; large size, up to 28...
the land-locked country of afghanistan has a restricted but relatively diverse ichthyofauna comprising 85 species in 10 families. the fauna is dominated by cyprinidae (50 species) and other ostariophysans (28 species). eight species are endemics to afghanistan within its political boundaries. there are three principal drainage basins: the endorheic amu darya draining to the aral sea with 29 spe...
Hydrological models are simplified representation of the real basin system, which helps to assess basin function in response to different inputs and better understanding of hydrological processes. The HEC-HMS model is one of the most important hydrological models for Flood estimating volumes and discharge in watersheds. In this research, the HEC-HMS hydrologic model was used to simulate the ...
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