Histopathology of the gill and liver tissues of the fish Anabas testudineus exposed to heavy metals in tannery effluents

A. Mary Josephine Rani; A. Yogavalli

Volume : V, Issue : III, March - 2015

Histopathology of the gill and liver tissues of the fish Anabas testudineus exposed to heavy metals in tannery effluents

A. Mary Josephine Rani, A. Yogavalli

Abstract :

The presence of heavy metals in our environment has been of great concern because of their toxicity when their concentration is more than the permissible level. These metals enter in the environment by different ways like industrial activities etc. In this study highlights the histopathological profile of gills and liver of Anabas testudineus exposed to tannery effluents. The fish samples were collected from the Bharath fish feed in Chennai. One hundred fingerlings of the fish were exposed to tannery effluent for four weeks. The liver and gill were removed every 7 days for histological examination. The results showed that the liver had the lowest metal concentrations compared with the gills.