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Studies on toxicity of detergents to Mystusmontanus and change in behaviour of fish

Author Affiliations

  • 1Zoology Department, Fergusson College, Pune, Mahastrar state, Pin-411004, INDIA

Res. J. Animal, Veterinary and Fishery Sci., Volume 1, Issue (9), Pages 14-19, October,24 (2013)


The acute toxicity of two detergents to Mystusmontanus was investigated using static bioassay's. The 96h LC50 values was determined by the Litchfield and Wilcoxon graphical method. These were for Det-I20.0mg/litre and Det-II 23.5mg/litre. During exposure period, the test fishes exhibited several behavioural changes before death such as restlessness, rapid swimming, and loss of balance, respiratory distress and haemorrhaging of gill filaments amongst others. Opercula ventilation rate as well as visual examination of dead fish indicates lethal effects of the detergent on the fish.


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