نتایج جستجو برای: south caspian sea

تعداد نتایج: 329640  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شهید بهشتی - دانشکده علوم زمین 1389

چکیده ندارد.

Journal: :iranian journal of toxicology 0
محمد شکرزاده لموکی mohammad shokrzadeh lamuki department of toxicology-pharmacology, faculty of pharmacy, pharmaceutical research center, mazandaran university of medical sciences, sari, iran. سید سهیل سعیدی ساروی seyed soheil saeedi saravi department of pharmacology, school of medicine, tehran university of medical sciences, tehran, iran. نسرین اوتادی nasrin otadi science and research branch ,islamic azad university, tehran, iran.

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 ...

Journal: :journal of agricultural science and technology 2010
s. rezvani gilkolaie

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...

Journal: :international journal of advanced biological and biomedical research 2014
m. rezazadeh m. abdoli n. mehrdadi m. mousavinezhad

sea shores of gilan province is one off the biggest tourist attractions in iran. this area have valuable forests and grasslands. in addition it provides significant amount of corps like rice, tea, olive. considering this facts, environmental protection of this area must be priority for national government. however waste management instruction have been ratified in iran, there isn’t any specific...

The Caspian frisian roach (Rutilus frisii kutum), economically a very important fish species in Iran, is propagated in fishponds, reared into the rivers in fingerling size and then harvested from the Caspian Sea in adult stage. We found six monogenean parasites on the Caspian frisian roach including five Dactylogyrus spp. on fingerlings cultured in fishponds and rivers and two Dactylogyrus spp....

Journal: :پژوهش های جغرافیای طبیعی 0
فرامرز خوش اخلاق استادیار دانشکده جغرافیا دانشگاه تهران نوذر قنبری استادیار گروه جغرافیا، دانشگاه آزاد اسلامی واحد کرمانشاه جعفر معصوم پور سماکوش دانشجوی دوره دکتری دانشکده جغرافیا دانشگاه تهران

the southern shores of caspian sea is subjected to several atmospheric factors due to its geographical position. north atlantic oscillation(nao) one of the effective phenomenon's affects the most part of hemisphere included caspian sea. in this research negative and positive phases of nao considered with variability of temperature and precipitation of southern shores of caspian sea in a 30...

Journal: :caspian journal of environmental sciences 2011
a. nasrollahzadeh al. et

guilan province is located in south and south-west of the caspian sea. guilan is one of the richest and the most humid region in the country due to suitable climate, ample rainfall and many water sources (springs, rivers, creeks,..),. despite the prevailing favorable conditions, limnological studies, especially in the mountainous regions of this province are limited. a limnological study was co...

Journal: :iranian j. of fisheries science 2014
h ghassemi a.p azizov s.s suleymanov

the analysis of net catches made in absheron gulfs of the caspian sea during 2011-2012 is provided. the ichthyofauna of absheron gulfs, including 26 species found in the north gulf, and 33 species and subspecies found in the south gulf was studied for the first time. a taxonomical and ecological diversity of the fish fauna of north and south absheron gulfs is characterized. the peculiarities of...

ژورنال: بوم شناسی آبزیان 2017

In this study, species composition, density and biomass of zooplanktons including Rotatoria, Protozoa and Meroplanktons were sampled using Juday net with mesh size of 100 µ at depths of 5, 10 and 20 meters in southern Caspian Sea (Babolsar) in two seasons of cold (Feb. 2015) and warm (June 2015) . This study identified Asplanchna sp. and Synchaeta sp. from Rotatoria, and Balanus sp., Pelecypoda...

رضایی, حسن, فرهانی, محمود, نمرودی, سمیه,

Background and purpose: Heavy metals can enter into animals’ body through consumption of contaminated food and water and leave toxic effects on different organs. Considering the potential public health risk posed by heavy metal contamination, information about concentration of heavy metals in animals can help in analyzing the suitability of ecosystems. Materials and methods: This study...

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