نتایج جستجو برای: anzali lagoon
تعداد نتایج: 5176 فیلتر نتایج به سال:
Tracking and determining the amount and types of urban sewage that is being releasing to the environment is important in planning for wastewater treatment systems and water quality control. In this research, in four stations of Anzali Lagoon, (by means of a gas chromatograph device with mass detector spectrometer) wastewater pollution has been measured and evaluated with molecular indicator Lin...
The chromosomal spread and karyotype of Bleak (Alburnus alburnus) from Anzali lagoon were identified using tissue squashing techniques with injection of 0.5ml/100g body weight of 0.01% Colchicines solution in fish fingerlings. Kidney and gill tissues were then extracted and chopped in KCl 0.045M for 20 min and fixed in Carnoy solution in 3 stages. The chromosomal spreads were stained in 20% Gim...
this paper presents the levels of total mercury (t-hg) in dorsal muscle, liver and spleen of pike (esox lucius) from anzali lagoon in iran. sampling were carried out from july 2004 to july 2005. in addition 78 samples were collected. t-hg concentration were calculated in relation to biometric factors. t-hg was measured by the leco ama 254 advanced mercury analyzer (usa) a...
Tench an economically important species in Anzali Lagoon has experienced a sharp catch decline in recent years. The present study aims at examining certain biological traits of the fish in Anzali lagoon. A sample of 96 pieces of such fish were netted out through gillnet fishing during Jan 2006-July 2007. The findings showed incongruity in 11 out of 36 morphometric traits followed by 1 out of 1...
The Caspian Sea (CS), biggest inland water worldwide has experienced around 3 m oscillation in sea level during the 20th century. These rapid fluctuations have had a great impact on coastal habitat this sea. Therefore, study is aimed to investigate long-term changes of western part shoreline and Anzali lagoon their dynamic responses fluctuation using time series analysis remotely sensed data ov...
In this study, a cheap, novel, ecofriendly and effective nanosorbent was synthesised with natural materials such as sand beach eggshell for diazinon determination in water. The successfully characterised using Fourier transform infrared spectroscopy (FT-IR), X-ray diffraction (XRD), energy dispersive (EDX), field emission scanning- electron microscopy (SEM), vibrating sample magnetometer (VSM) ...
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...
Population genetic structure of Vimba vimba persa was investigated using microsatellite markers from 40 regions along the Iranian coastline of the Southern Caspian Sea (Anzali lagoon and Havigh River in Gilan province, BabolRoud River in Mazandaran province and GorganRoud River in Golestan province). Genomic DNA from 121 specimens was extracted from fin tissue by the Phenol-Chlorophorm method ...
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