نتایج جستجو برای: caspian seal

تعداد نتایج: 17821  

Journal: :Molecular ecology 2003
Melania E A Cristescu Paul D N Hebert Teodora M Onciu

The Black, Azov, Caspian and Aral Seas, remnants of the intracontinental Paratethys basin, are home to a spectacular diversity of crustaceans. This study examines the past history of the Ponto-Caspian fauna through comparative phylogeographical studies on both benthic and planktonic taxa, based on an examination of nucleotide diversity in the mitochondrial, cytochrome c oxidase subunit 1 (COI) ...

Journal: :Emerging Infectious Diseases 2000
S. Kennedy T. Kuiken P. D. Jepson R. Deaville M. Forsyth T. Barrett M. W. van de Bildt A. D. Osterhaus T. Eybatov C. Duck A. Kydyrmanov I. Mitrofanov S. Wilson

Thousands of Caspian seals (Phoca caspica) died in the Caspian Sea from April to August 2000. Lesions characteristic of morbillivirus infection were found in tissue specimens from dead seals. Canine distemper virus infection was identified by serologic examination, reverse transcriptase- polymerase chain reaction, and sequencing of selected P gene fragments. These results implicate canine diste...

Journal: :PLoS ONE 2009
Carlos A. Driscoll Nobuyuki Yamaguchi Gila Kahila Bar-Gal Alfred L. Roca Shujin Luo David W. Macdonald Stephen J. O'Brien

The Caspian tiger (Panthera tigris virgata) flourished in Central Asian riverine forest systems in a range disjunct from that of other tigers, but was driven to extinction in 1970 prior to a modern molecular evaluation. For over a century naturalists puzzled over the taxonomic validity, placement, and biogeographic origin of this enigmatic animal. Using ancient-DNA (aDNA) methodology, we genera...

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...

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...

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...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید