نتایج جستجو برای: caspian vimba

تعداد نتایج: 3683  

2015
Mohammad Hassan Shirazi Bahareh Lashtoo Aghaee Mohammad Reza Pourmand Mostafa Hosseini Davood Afshar Sara Hajikhani Saeedeh Shobeiri

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 ...

2001
Douglas Blum

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...

Journal: :Fisheries & Aquatic Life 2023

Abstract The aim of this study was to compare the susceptibility body deformities in juveniles 13 common European cypriniform fish, caused by intensive feeding with same commercial dry diet administered at 25°C according a similar schedule. final share individuals malformations differed considerably among species and 0.0-87.0%. Unaffected were only Barbus barbus (L.), Chondrostoma nasus Cyprinu...

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...

Journal: :دامپزشکی 0
حسین پاشایی چلکاسری دانش آموختگان کارشناسی ارشد دانشگاه آزاد اسلام یواحد لاهیجان مسعود فرخ روز گروه شیلات دانشگاه آزاد اسلام یواحد لاهیجان عباسعلی زمینی گروه شیلات دانشگاه آزاد اسلام واحد لاهیجان حبیب وهاب زاده گروه شیلات دانشگاه آزاد اسلام یواحد لاهیجان یاور ابراهیمیان دانش آموختگان کارشناسی ارشد دانشگاه آزاد اسلام یواحد لاهیجان

at first, in order to define acute toxicity of diazinon insecticide and butachlor herbicide, acute toxicity tests (lc5096h) were done, based on standard method (1989) o.e.c.d. in static way and for 96 hours. and the amount of acute toxicity (lc5096h) of diazinon and butachlor in 1 to 2 gram vimba vimba persa fry larva was determined to be 0.09 and 0.61 respectively. in order to do histology stu...

2016
Halimeh Zareian Hamid Reza Esmaeili Adeleh Heidari Majid Reza Khoshkholgh Hamed Mousavi-Sabet

Traditionally, Capoeta populations from the southern Caspian Sea basin have been considered as Capoeta capoeta gracilis. Study on the phylogenetic relationship of Capoeta species using mitochondrial cytochrome b gene sequences show that Capoeta population from the southern Caspian Sea basin is distinct species and receive well support (posterior probability of 100%). Based on the tree topologie...

Journal: :Molecular ecology 2006
Gemma E May Gregory W Gelembiuk Vadim E Panov Marina I Orlova Carol Eunmi Lee

The invasion of the zebra mussel, Dreissena polymorpha, into North American waters has resulted in profound ecological disturbances and large monetary losses. This study examined the invasion history and patterns of genetic diversity among endemic and invading populations of zebra mussels using DNA sequences from the mitochondrial cytochrome oxidase I (COI) gene. Patterns of haplotype frequency...

2003
Alexei V. Kouraev Fabrice Papa Petr I. Buharizin Anny Cazenave Jean-Francois Cretaux Julia Dozortseva Frederique Remy

Kouraev et al. 2003: Polar Research 22(1), 43–50 A stable and strong ice cover forms during winter months in the Aral Sea and northern part of the Caspian Sea. The presence of ice cover negatively affects navigation and fi shery condi tions and endangers facilities located on the coast as well as on the shelf, such as oil rigs that have recently been installed in the northern Caspian by Russia ...

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