نوع مقاله : مقاله پژوهشی
نویسندگان
1 دانشیار گروه شیلات، دانشکده منابع طبیعی، دانشگاه تهران، کرج، ایران.
2 دانش آموخته کارشناسی ارشد گروه مهندسی منابع طبیعی، دانشکده منابع طبیعی و محیط زیست، واحد علوم و تحقیقات دانشگاه آزاد اسلامی تهران، تهران، ایران.
3 استادیار گروه مهندسی منابع طبیعی، دانشکده منابع طبیعی و محیط زیست، واحد علوم و تحقیقات دانشگاه آزاد اسلامی تهران، تهران، ایران.
4 دانشجوی دکتری گروه شیلات، دانشکده منابع طبیعی، دانشگاه تهران، کرج، ایران
چکیده
کلیدواژهها
موضوعات
عنوان مقاله [English]
نویسندگان [English]
The present study was conducted to investigate the bioaccumulation of copper in gill, mantle and foot of freshwater mussel, Anodonta cygnea. For this purpose, the bivalves were exposed to 125 μg/l of Cu during a period of 9 days and the Cu content were analyzed in the organs in days 3, 6 and 9. The results showed the concentration of Cu in unexposed mussels were the highest (10.35±2.12 μg Cu/g DW) and lowest (5.39±1.8 μg Cu/g DW) in the gill and foot, respectively. Cu concentrations were increased significantly (P<0.05) in all studied organs during exposure period compared to unexposed mussels. Among organs, the gill and mantle has the highest and lowest accumulation levels, respectively. Also, the highest and the lowest values of bioconcentration factor (BCF) were observed in gill and mantle, respectively. Based on the results, it can be said that Cu content in organs of A. cygnea (especially in the gills) is a proper indices of Cu pollution in the habitats of this organism.
کلیدواژهها [English]