نتایج جستجو برای: tigris basin.
تعداد نتایج: 57860 فیلتر نتایج به سال:
the systematics, morphology, distribution, biology, economic importance and conservation of the freshwater catfishes of iran are described, the species are illustrated, and a bibliography on these fishes is provided. there are four families with four genera and six species, one of which is an exotic; the family bagridae with one genus and species, mystus pelusius in the persian gulf, hormuz and...
garra rufa , a bottom dwelling freshwater fish and native to the middle east, is distributed in the southwestern of iran and the tigris basin. considering the importance of length-weight relationships data of a species in different habitats, the length-weight relationship of g. rufa from 13 rivers in the persian gulf and the tigris basins was explored. the value of exponent b ranged from 2.74 t...
This paper examines the ramifications of late twentieth century water management schemes–especially those initiated by the Republic of Turkey–for the riparians of the Tigris and Euphrates rivers. The Turks’ geographical position, and their ability to construct large water storage systems, has essentially given them command of the headwaters of the Euphrates and, to a lesser degree, the Tigris. ...
This paper provides information on the geographic distributions of two cyprinid species: Hemiculter leucisculus (Basilewsky, 1855) and Alburnus caeruleus Heckel, 1843, in the world and the entire drainage systems in Iran. The new distribution records were taken from Maroon River (Jarrahi River system) and Chardaval River (Karkheh river system), both in Tigris River basin showing wide and narrow...
cobitis avicennae is a new described species from iranian part of the tigris basin and little information is available on its different aspects of its biology and holomorphology. hence, this study was conducted to provide a detailed description of its osteological features. for this purpose, the specimens of c. avicennae were cleared and stained and a detailed description of its skeletal struct...
distribution of the genus chondrostoma in iran, which is mostly known from the caspian sea, tigris river, kor river and esfahan basins was mapped. the kura nase, chondrostoma cyri is reported from armenia, georgia and iran and it is found in the streams and rivers draining to the western coast of the caspian sea from the kuma river in the north southward to the kura and aras river basins in the...
this paper provides information on the geographic distributions of two cyprinid species: hemiculter leucisculus (basilewsky, 1855) and alburnus caeruleus heckel, 1843, in the world and the entire drainage systems in iran. the new distribution records were taken from maroon river (jarrahi river system) and chardaval river (karkheh river system), both in tigris river basin showing wide and narrow...
in the present study, some biological aspects of capoeta trutta (heckel, 1843) have been examined for the aim of future stock assessment, exploitation and conservational managements. a total of 103 fish specimens were collected seasonally from seymareh river, tigris basin, iran, in four seasons during 2011-2012. observed maximum age was 4 + in both sexes and sex ratio obtained as 1m:1.9f. analy...
the isolation-by-distance theory states that the genetic differentiation between individuals raised by increasing geographic distance. therefore, this study tested this hypothesis for garra rufa , a freshwater fish species of iranian inland waters, from six rivers located at the different distances in tirgis basin. for this purpose, eight variable microsatellite loci were applied to identify ge...
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