Bioaccumulation of Aluminium in Selected Tissues of Zebra Fish Brachydanio rerio (Ham.)

The aim of the study was to investigate the bioaccumulation of aluminium in tissues such as gill, liver, muscle and brain, and possibility to use these organs as quantitative bioindicators in polluted aquatic environment. Therefore, the experiment has been designed to provide conditions as close as possible to those found in nature. For this, two sublethal concentrations of aluminium were selected and the fish were exposed for a period of 7, 14, 21 and 28 days. The pattern of accumulation varied significantly among fish organs (liver > gill > muscle). In brain the accumulation was below the detection limit. The study showed that the bioaccumulation rate depends on concentration of the toxicant and length of the exposure period.