نتایج جستجو برای: the caspian sea region

تعداد نتایج: 16105121  

ژورنال: مهندسی دریا 2017

The Caspian Sea level changes were very high in various periods of time; alternatively decreasing and increasing. Since the Caspian Sea level changes generally are remarkable in the short period of time, shoreline forward and retreat will be large due to the fluctuation of sea level; so, the prediction of shoreline changes is very important in the Caspian Sea. Bruun has presented his theory und...

2012
Jacqueline Nolting Anthony C. Fries Richard D Slemons Chad Courtney Nichole Hines Janice Pedersen

In 2010, H14 influenza A viruses were recovered from clinically normal sea ducks in the United States. These are the first H14 isolates recovered in the Western Hemisphere and represent the only documented H14 influenza A viruses isolated since the original isolates were recovered from near the Caspian Sea during 1982.

2017
Omid Beyraghdar Kashkooli Joachim Gröger Ismael Núñez-Riboni

The worldwide occurrence of complex climate-induced ecological shifts in marine systems is one of the major challenges in sustainable bio-resources management. The occurrence of ecological environment-driven shifts was studied in the Southern Caspian Sea using the "shiftogram" method on available fisheries-related (i.e. commercially important bentho-pelagic fish stocks) ecological and climatic ...

پایان نامه :0 1371

in order to examine the ecological conditions and characteristics of fraxinus excelsior l. in the northern forests of iran 6 main areas as well as some miscellaneous ones , have been selected in the region respectively in : lomir2, shafaroud , park - e-noor , ahlam , alandan and noor.

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Genetic structure of Acipenser persicus, in the Caspian Sea was studied using tetrasomic microsatellite markers. A total of 195 specimens of A. persicus breeders were collected from the sampling stations located in the five fishery catch zones as well as from the Sefidrud River in the south Caspian region. About 2 g of caudal fin samples was collected from each sturgeon specimen and preserved i...

Genetic structure of Acipenser persicus, in the Caspian Sea was studied using tetrasomic microsatellite markers. A total of 195 specimens of A. persicus breeders were collected from the sampling stations located in the five fishery catch zones as well as from the Sefidrud River in the south Caspian region. About 2 g of caudal fin samples was collected from each sturgeon specimen and preserved i...

Gill chloride cells and prolactin hormone are of high importance in the adaptation of euryhaline fish. Guldenstati (Chalcalburnus chalcoides, 1772), an adromous fish, migrates from the Caspian Sea to rivers to have a more successful reproduction. The present study was aimed to evaluate the changes in the number and size of C. chalcoides gill chloride cells as well as to determine the relationsh...

2013
R. Asgari B. Mojazi Amiri S. Eagderi M. A. Nematollahi

Bream (Abramis brama, Berg, 1949; Family: Cyprinidae) is commercially valuable fish in the Caspian Sea fishing industry. Iranian Fisheries Organization annually produces and release up to 19 million Bream fries size for recruiting of this species. Its fries are mostly released into the Anzali wetland with 4 ppt salinity. Meanwhile, they sometimes are released into Sefidrood River (0.5 ppt), Sef...

Journal: :سیاست 0
محمدجعفر جوادی ارجمند استادیار گروه علوم سیاسی دانشکده حقوق و علوم سیاسی دانشگاه تهران حبیب رضازاده دانش آموخته کارشناسی ارشد رشته علوم سیاسی دانشگاه تهران

caspian sea had been used a long time between iran and the soviet :union: based on agreements of 1920 and 1940, without international importance. after the soviet’s collapse and with increasing the countries of sea border from two to five, this lake was important due to geopolitical and geo-economical conditions. following these situations, the legal regime of caspian sea needed to be revised. ...

ژورنال: علمی شیلات ایران 2019

In this paper systematics of the gastropods of the Quaternary deposits were studied in the Caspian Sea in an exploration well in the northern city of Aq Qala in Golestan province. In this subsurface studied, total thickness of Quaternary deposits is 2585m. A Total of 11 species, 8 genera of 5 families of gastropods are reported. The identified gastropods show that since the beginning of the Qua...

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