نتایج جستجو برای: e anzali
تعداد نتایج: 1017230 فیلتر نتایج به سال:
Background and purpose: Fish and seafood are considered as important sources of high-quality protein, minerals and polyunsaturated fatty acids, but they can contribute significantly to human dietary exposure to environmental pollutants. This study was carried out to assess the concentration of Pb in kutum as the most consumed fish and to determine the estimated daily/weekly intake (EDI/EWI) for...
The rapid rise of Caspian Sea water level (about 2.25 meters since 1978) has caused much concern to all five surrounding countries, primarily because flooding has destroyed or damaged buildings and other engineering structures, roads, beaches and farm lands in the coastal zone. Given that climate, and more specifically climate change, is a primary factor influencing oscillations in Caspian Sea ...
sorkhankol wildlife refuge with an area of 1209 ha is located in the central part of anzali wetland. in total, 81 species belonging to 35 families and 68 genera were surveyed and identified on the basis of a floristic study from july 2013 through june 2014. the largest families are poaceae (11 taxa), asteraceae (8 taxa) apiaceae, brassicaceae and cyperacae (5 taxa). the dominant life forms were...
anzali wetland is one of the most important aquatic ecosystems of iran located at southwest of the caspian sea. this wetland is a habitat for valuable fish with vital role in life cycle of this ecosystem. assessment of pollutants concentration is rational due to complications of determining biological effects in a habitat. the present study examined the concentration of lead (pb) and cadmium (c...
To study the intraspecific diversity of Caspian Asp, Leuciscus aspius in South Sea region, Iran, we collected 2016–2017 a total 101 specimens from Aras River and Astara, Anzali, Kiashahr Langeroud shores, analysed 41 morphometric nine meristic characteristics with multivariate statistical methods. Significant differences were found between these populations 27 traits. A Principal Component Anal...
wetlands are often considered sinks for contaminants, and aquatic plants have been shown to play important roles in wetland biogeochemistry through their active and passive circulation of elements. in this research, in order to evaluate the concentration level of heavy metals released by the urban, industrial and agricultural activities at the margin of the rivers flowing into anzali lagoon, as...
in this survey, 54 specimens of common carp (cyprinus carpio) were collected from anzali wetland between august 2011 and july 2012. after recording biometric characteristics, routine necropsy and parasitology methods were used. totaly, 3165 individuals of parasites were isolated and identified from common carp. parasitofauna consisted of 10 species as follows: two protozoans, ichthyophthirius m...
background: in the recent years, eutrophication has become a serious challenge for many of the water ecosystems. it has affected the environmental and economical aspects of the anzali wetland, which is known as one of the significant ecosystem. due to the increase of the nutrient loadings from the industrial, agricultural and human activities, the wetland’s health is faced many serious problems...
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