Zohreh Mazaheri Kohanestani
Faculty of Fisheries and Environmental Sciences, Gorgan University of Agricultural Sciences and Natural Resources
[ 1 ] - The effect of trout farm effluents on the water quality parameters of Zaringol Stream (Golestan, Iran) based on NSFWQI and WQI indexes
The aim of this study was to assess the potential impact of Trout farm effluents on water quality of Zaringol stream based on NSFWQI and WQI indexes. Some physicochemical water quality parameters were measured from 14 point during December 2009 to September 2010 seasonality. The average value of NSFWQI is 53.21 and it shows spatial and temporal variation. The maximum value or best water quality...
[ 2 ] - یافته علمی کوتاه: تأثیر آلودگی به انگل (Posthodiplostomum cuticola (Nordmann, 1832 برنرخ رشد ماهیان نهر زرین‌گل- استان گلستان
This study investigated the effect of parasite infection with Posthodiplostomum cuticola on fish growth rate in Zaringol Stream in Golestan Province. A total number of 447 fish specimens (173 Capoeta capoeta gracilis, 111 Alburnoides eichwaldii, 131 Paracobitis malapterura, 32 Neogobius fluviatilis) were captured by electrofishing during December 2009 to September 2010. Total number of para...
[ 3 ] - بررسی برخی ویژگی‌های کیفی و غلظت عناصر سنگین در لجن فاضلاب خشک شده تصفیه‌خانه شاهین‌شهر اصفهان
زمینه و هدف: استفاده از لجن فاضلاب در زمین یکی از مهم‌ترین روشهای دفع لجن میباشد که باعث استفاده بهینه مواد غذایی موجود در لجن می‌شود. اما وجود آلایندهها و ارگانیسم‌های پاتوژن در آن برای سلامت عمومی خطرناک است که بایستی پیش از استفاده مورد ارزیابی قرار بگیرد. این تحقیق، با هدف بررسی کیفیت لجن خشک شده تصفیه‌خانه فاضلاب شاهین‌شهر از نظر غلظت عناصر سنگین انجام گرفت. روش بررسی: نمونه‌بر...
[ 4 ] - Phytoplankton composition and diversity in Gorgan Bay, Golestan province
This study was carried out to investigate the phytoplankton composition in Gorgan Bay. Water samples were collected from 11 selected sites in Golestan bay, monthly from March to February. Thirty five genus were identified among which Bacillariophyta was the dominate group with 17 genus, while the Euglenophyta had the minimum. Abundance and biomass of phytoplankton showed spatial and temporal va...
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