Effects of Cadmium and Cadmium Chitosan Mixture on Some Blood Parameters of Oreochromis niloticus
Çiftçi, Nuray | Karayakar, Fahri | Ay, Özcan | Karaytuğ, Sahire | Cicik, Bedii
Effects of 1 mgL-1 cadmium (Cd) and 1 mgL-1 Cd-10 mgL-1 chitosan(CT) mixture on hematocrit levels, erythrocyte numbers and on erythrocyte and erythrocyte nucleus areas were determined after exposing the animals to Cd and Cd-CT mixture over 7, 15 and 30 days. Microhematocrit and microscopic methods were used in determining the above blood parameters. No mortality was observed during the experiments. Hematocrit levels and erythrocyte numbers decreased whereas erythrocyte and erythrocyte nucleus areas increased in fish exposed to Cd alone compared with the control. No difference was observed, however, in the parameters studied in Cd-CT exposed fish compared with the control, except the erythrocyte nucleus area (P
Effects of cadmium on sera glucose and cortisol levels in Clarias gariepinus (Burchell, 1822).
Karaytuğ, Sahire | Karayakar, Fahri | Çiftçi, Nuray | Cicik, Bedii | Ay, Özcan
The effects of cadmium on sera glucose and cortisol levels of Clarias gariepinus was studied after exposing the animals to 0.25, 0.50 and 1.00 ppm Cd over 30 days. An autoanalyser was used in determining sera parameters. Sera glucose levels showed no significant difference between the control and 0.25 and 0.50 ppm Cd exposed fish whereas 1.00 ppm cadmium decreased sera glucose significantly (p
Multi metalle kirlenmiş bir toprağın fitoremediasyon öncesi ve sonrası metal biyoyarayışlılığının ve biyoalınabilirliğinin araştırılması
Tütüncü, Emre.
ÖZET MULTİ METALLE KİRLENMİŞ BİR TOPRAĞIN FİTOREMEDİASYON ÖNCESİ VE SONRASI METAL BİYOYARAYIŞLILIĞININ VE BİYOALINABİLİRLİĞİNİN ARAŞTIRILMASI Toprak kirliliği, dünya çapında bir sorundur, ağır metaller bu sorunun önemli bir parçasıdır. Ağır metallerin topraklardan bitki ve sulara ve oradan da insanlara transferi hem insan sağlığı riski değerlendirmesi hem de kirlilik kontrolü için büyük önem taşır. Kirli topraklarda kadmiyum (Cd), kurşun (Pb) ve çinko (Zn) gibi ağır metallerin biyoyarayışlılığının ve biyoerişebilirliğinin değerlendirilmesi, bu toprakları daha iyi yönetmek ve gelecekte tekrar kullanmak için mutlak gereklidir. Fitoremediasyon, toprak ve sudaki metal kirleticilerin uzaklaştırılması ya da daha zararsız hale getirmek için bitkilerin kullanıldığı, etkili, çevresel olarak ekoloji...
Induction of micronuclei and other nuclear abnormalities in peripheral erythrocytes of Nile tilapia, Oreochromis niloticus, following exposure to sublethal cadmium doses
YILMAZ, FERBAL ÖZKAN | HUNT, ARZU ÖZLÜER
The genotoxic effects of sublethal doses of cadmium in peripheral erythrocytes of Oreochromis niloticus was investigated using micronucleus (MN) and nuclear abnormalities (NAs) tests. For this reason, the fish were exposed to medium changes of 0.5 and 1.0 mg/L doses of cadmium (Cd) during an average treatment period of 10 days. On the 2nd, 4th, 6th, and 10th days of the test period, the erythrocytes, including the micronuclei (MN) and other nuclear abnormalities such as lobbed nuclei (LB), blebbed nuclei (BL), and notched nuclei (NT), were counted and pointed out. As a positive control, a 4 mg/L dose of cyclophosphamide was used. Exposure to doses of cadmium caused significantly increased (P < 0.05) micronuclei in peripheral erythrocytes of fish. It was also observed that the application o...