نتایج جستجو برای: caspian sea
تعداد نتایج: 131508 فیلتر نتایج به سال:
This memo addresses the general prospects for Russia's policy in the Caspian Sea, particularly in light of the ongoing financial crisis and domestic political turmoil. After touching on uncertainties regarding the Caspian's significance as a source of hydrocarbon reserves, I will consider Russia's evolving policy preferences and diplomatic relations, environmental issues, and the broader politi...
the systematics, morphology, distribution, biology, economic importance and conservation of the lamprey of iran are described, the species is illustrated, and a bibliography on this fish in iran is provided. there is one native and endemic species in the caspian sea basin, caspiomyzon wagneri . the genus caspiomyzon is characterised by having 2 dorsal fins, an oral disc narrower than the body, ...
sturgeons are the most important fish in the caspian sea, but there are only a few reports on their parasite communities in the southern part of this sea. in this study, a total of 93 individuals of four sturgeon species, namely acipenser stellatus (n= 60), a.gueldenstaedtii (n = 12), a. nudiventris (n = 9) and huso huso (n = 12), were caught in 2 geographical regions from the southwest of the ...
The objective of the current study was determined chemical composition (including protein, lipid, ash and moisture) and content of minerals (Zn, Mn, Fe, Cu, Cr, Ca, Na, Mg, Mo, P, Se, K, I and F) in five fish species from the South Caspian Sea. The chemical analysis revealed that the protein content of common kilka, Caspian kutum, common carp, pike perch and golden grey mullet was 18.35%, 21.39...
Nowadays, a noticeable part of the relations among the states turn around the environment protection. Therefore, the right for ever-creasing use of the existing resources of this inland sea cannot be exclusive to any Caspian State and the aftermath involves all countries of this basin. In this respect, agreement on political border and boundaries with the Caspian Sea?s ecosystem is a difficul...
چکیده ندارد.
background: pesticides are essential in modern agricultural practices but due to their biocide activity and potential risk to the consumer, the control of pesticide residues in foods is a growing source of concern for the general population. extensive application of such agents as organochlorine pesticides in farmlands and contemporary agricultural industries has led to undesired environmental ...
samples from five sturgeon species including persian sturgeon (acipenser persicus), russian sturgeon (a. gueldenstaedti), great sturgeon (huso huso),ship sturgeon (a. nudi-ventris) and stellate sturgeon (a. stellatus) were collected from the south caspian sea. dna was extracted from the fins, eggs and skeleton muscle of the five species. rapd markers were used for identifying different kinds of...
some parasites can be transferred from fish to human via eating of contaminated meat and make serious problems in consumers. in the present study zoonotic parasites of abdominal cavity in pike-perch, sander lucioperca, in south eastern part of the caspian sea have been surveyed. in this regard, 30 fish were caught by purse seine net and abdominal cavity, digestive tract and other organs (kidney...
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