Enzymatic studies in the liver and muscle of freshwater fish, Pangasius hypophthalmus exposed to tannery effluent

The effects of effluents from tanning industry and its toxicity on enzymatic changes of a fresh water fish, Pangasius hypophthalmus were studied. Tannery effluent was diluted with normal water at two different concentration (1ppm, 2ppm) to which fishes were exposed for 10 days. The diluted tannery e...

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Bibliographic Details
Published in:International journal of biosciences and technology 2012-09, Vol.5 (18), p.99-99
Main Authors: Priya, Sindhu A, Prabha, Suriya V, Jayasree, R, Parthasarathy, N, Rajkumar, Johanna, Pazhanivel, N, Balakrishnan, Anandan
Format: Article
Language:English
Subjects:
Pangasius hypophthalmus
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Summary:The effects of effluents from tanning industry and its toxicity on enzymatic changes of a fresh water fish, Pangasius hypophthalmus were studied. Tannery effluent was diluted with normal water at two different concentration (1ppm, 2ppm) to which fishes were exposed for 10 days. The diluted tannery effluent was analyzed for the presence of heavy metals. Heavy metals like cadmium, chromium, lead, zinc, etc., were present in the tannery effluent diluted water. Fishes were dissected on the 5th and 10th day. Liver and muscle tissues were removed for enzymatic analysis. The levels of the enzymes (Aspartate Transaminase, Alanine Transaminase, Catalase, Superoxide Dismutase, Reduced Glutathione, Glutathione-S-Transferase and Glutathione Peroxidase) were decreased in the Liver, whereas there was an increased activity of the enzymes in the muscle. This investigation shows that fishes are affected by tannery effluent even at very low dilutions. These changes can affect human life through food web. Hence the tannery effluent must be treated and then discharged into the water sources as a safety measure to aquatic and human life. The observations made in the investigations interpret that fishes also shows an adaptive measure to protect themselves from the toxic effect of the tannery effluent.
ISSN:0974-3987