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:: Volume 22, Issue 4 (1-2014) ::
isfj 2014, 22(4): 71-81 Back to browse issues page
The sub-lethal effects of Cadmium on some gill histopathology in the cultivated Sterlet (Acipenser ruthenus)
M. Orojali , F. Paykan Heyrati * 1, S. Alar Dorafshan , N. Mahboobi Soofiani
Abstract:   (9149 Views)
The sub-lethal effects of water-born Cadmium (Cd) on histopathological changes of gill tissues were investigated on Sterlet, Acipenser ruthenus. In this research, 60 fish (41.69 ± 0.95 g and 23.98 ± 0.14 cm) were randomly distributed in 4 experimental groups, each with 3 replicates. The fish were exposed to different concentrations of Cd for 21 days under semistatic experimental condition as: 0, 16, 32 and 64 μg/L Cd. At the end of the experiment, the gill tissues were fixed in Bouin's solution for histopathological studies. Qualitative and quantitative changes of the gill tissues were analyzed. Several qualitative changes including hyperplasia, hypertrophy of epithelial cells and epithelial edema as well as necrosis, rings and fusion of gill filaments and secondary lamellae were observed in all treated fish including control group. Quantitative analysis based on organ index (Iorg) showed significant increase in histopathological changes in the gill tissues coincided by elevation of Cd concentration in the water. However, there was no significant differences in the organ index between control and 16Cd group.The results of this study demonstrate severe histopathological changes in the gill tissues after exposing to sub-lethal concentration of water-born Cd under experimental condition. The results of this study might be used as a guildline for evaluation of histopahological changes being induced by heavy metals in natural or cultivated environment for sturgeon fish.
Keywords: Sterlet, Acipenser ruthenus, Cadmium, Histopathology, Gill.
Full-Text [PDF 658 kb]   (2664 Downloads)    
Type of Study: Research | Subject: فيزيولوژي آبزيان
Received: 2014/10/29 | Accepted: 2014/10/29 | Published: 2014/10/29
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Orojali M, Paykan Heyrati F, alar Dorafshan S, Mahboobi Soofiani N. The sub-lethal effects of Cadmium on some gill histopathology in the cultivated Sterlet (Acipenser ruthenus). isfj 2014; 22 (4) :71-81
URL: http://isfj.ir/article-1-1172-en.html


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Creative Commons License This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.
Volume 22, Issue 4 (1-2014) Back to browse issues page

با کسب مجوز از دفتر کمیسیون بررسی نشریات علمی وزارت علوم، تحقیات و فنآوری مجله علمی شیلات بصورت آنلاین می باشد و تعداد محدودی هم به چاپ می رساند. شماره شاپای جدید آن ISSN:2322-5998 است

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