نتایج جستجو برای: in the caspian sea

تعداد نتایج: 21224716  

Caspian Sea is the largest enclosed body of water on the earth. Since the collapse of Soviet Union in 1991 and discovering large oil and gas fields, some issues such as political, economic and environmental events, made the Caspian Sea important. The ecology of the Sea are being endangered due to several issues such as petroleum extraction, river and sea pollutions, water level rise, biological...

2013
Vladimir F. Krapivin Anatolij M. Shutko Alexander A. Chukhlantsev Sergei P. Golovachev

Remote measurements of different environmental parameters received during last 30 years are used for the synthesis of a Complex Simulation Model (CSM) describing the combined water regimes of the Aral-Caspian System (ACS) including the consideration of aquatic and climatic natural processes. The problem of stabilizing the sea levels of these two water bodies is modelled and a solution obtained ...

Journal: :iranian journal of ichthyology 0
mohammad sayyad bourani national inland waters aquaculture institute, bandar anzali, guilan, iran. behrooz abtahi faculty of biological science, shahid beheshti university, tehran, iran. mahmoud bahmani international sturgeon research institute, rasht, guilan, iran. bahram falahatkar 4fisheries department, faculty of natural resources, university of guilan, sowmeh sara, p.o.box 1144, guilan, iran.

this study was carried out to determine the appropriate size of caspian trout ( salmo caspius kessler, 1877) juveniles for releasing into the rivers that enter south of the caspian sea for stock enhancement, or possibility of cage culture in the caspian sea. a total of 1611 specimens in 4 weight groups of 5, 10, 15 and 20g were exposed to 3 salinity trials which include caspian sea water (11- 1...

A. Rouhi, A.E. Kideys, A.R Mirzajani, G. Finenko, S. Bagheri, T. Shiganova,

The experiments with Beroe ovata showed that this ctenophore can survive and reproduce in the Caspian Sea water, though at far lower rate than in the Black Sea; larval growth in the Caspian Sea water was also slower and mortality higher. Maximum fecundity of 2210 and 240 eggs recorded in laboratories of Turkey and Iran, respectively. About 34 to 100% of eggs in the Caspian Sea water could not d...

2008
Igor Zonn

The Caspian Sea is the world’s largest inland sea. Physiographically it is unique. It is the most productive body of water in the world1 and the only one that preserves the geno-fund of the sturgeon, the source of almost all the black caviar produced. About 10 million people live around the Caspian Sea and the occupations of many of them are connected with the sea, and first of all with fishing...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه علامه طباطبایی 1390

introruction khawf in(iran)-herat and mazaresharif and shirkhan bandar in (afghanistan)-dushanbe in (tajikistan)_(kirgizstan)-kashghar in(china) project railway network is under construction that it is as a significant corridor for revitalizing silk road corridor in the region .at the present there are three different gauge in the region central asia with 1,520 mm gauge and turkey-islamic repu...

A. Rouhi A.E. Kideys A.R Mirzajani, G. Finenko S. Bagheri T. Shiganova

The experiments with Beroe ovata showed that this ctenophore can survive and reproduce in the Caspian Sea water, though at far lower rate than in the Black Sea; larval growth in the Caspian Sea water was also slower and mortality higher. Maximum fecundity of 2210 and 240 eggs recorded in laboratories of Turkey and Iran, respectively. About 34 to 100% of eggs in the Caspian Sea water could not d...

ژورنال: فیزیک زمین و فضا 2012
آذر زرّین عباس مفیدی غلامرضا جانباز قبادی

The causes of wintertime precipitation decrease in the Southern Coast of Caspian Sea (SCCS) compared to its counterpart in autumn, is investigated with the use of synoptic stations daily dataset of SCCS and gridded NCEP/NCAR and NOAA dataset. The structure of atmospheric circulation and synoptic and physical conditions over the Caspian Sea region which are dominate in the winter and autumn prec...

ژورنال: :فیزیک زمین و فضا 2012
عباس مفیدی آذر زرّین غلامرضا جانباز قبادی

the causes of wintertime precipitation decrease in the southern coast of caspian sea (sccs) compared to its counterpart in autumn, is investigated with the use of synoptic stations daily dataset of sccs and gridded ncep/ncar and noaa dataset. the structure of atmospheric circulation and synoptic and physical conditions over the caspian sea region which are dominate in the winter and autumn prec...

2016
M Rahanandeh S Alinezhad M Khadivinia Moghadam

Caspian sea is a land–locked brackish water lake where zoologically characterized by various aquatic animals aquatic animals and different commercially important fish species Shariati [15]. The fishes in the Caspian Sea and its watershed areas include 78 species, and 49 subspecies which belong to 16 fish family. The bulk of Caspian Sea fishes are anadromos and the major commercially important f...

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