Untitled

Abstract

In this study, after the 30 days of boron exposure, the boron bioaccumulation, the catalase (CAT), carbonic anhydrase (CA) and glucose-6-phosphate dehydrogenase (G6PD) activities and a lipid peroxidation product called malondialdehyde (MDA) levels in different tissues of Cyprinus carpio were investigated. Boron accumulation was performed by Atomic Absorption Spestroscopy and biochemical analysis were performed by spectrophotometric method. Boron amounts of all tissues of the fishes in the aquariums containing 10 mg/L boron were higher than the amounts in control groups. It was determined that CAT and G6PD activities of the skin of the fishes in the aquarium supplemented with boron decreased significantly compared to the control group, but the other tissues were not affected significantly. CA activities of the muscle, liver, gill and brain tissues of the group exposed to 10 mg/L boron water were higher than the control group, while the activity in intestine, eye and skin tissues decreased compared to the control group. MDA levels in the muscle, liver, and gill tissues of the fishes in the boron supplemented aquariums decreased compared to the control group.