This study aimed to assess ecological quality status of hard substratum macroinvertebrates communities of the Caspian Sea with three ecological indices and their relationship with environmental factors. For this purpose, benthic communities of the Caspian Sea basin were studied seasonally during 2014 in 8 sampling sites. Temperature, salinity, dissolved oxygen, pH, nitrate, nitrite, silicate an...

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...

Introduction. The paper considers conditions conductive to the formation and location of oil gas accumulations in Turkmen sector South Caspian Basin. Aim. Modeling hydrocarbon systems Materials methods. Statistical generalization systematization data materials presented reference literature, field sources, archive data, as well published works Sh.F. Mekhtiev, I.S. Guliev, M.Z. Rachinskii, S.S. ...