EFFECT OF ACUTE TOXICITY OF COPPER ON HISTOPATHOLOGY OF BARBEL OF STINGING CATFISH, HETEROPNEUSTES FOSSILIS (Bloch)
- Aquatic Toxicology Research Laboratory, Department of Zoology, University of Lucknow, Lucknow-226007 (U.P.), India.
- P.G. Department of Zoology, B.S.N.V.P.G. College, Lucknow-226001(U.P.), India.
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In spite of being essential trace metal copper imposes marked changes in vital organs of fish at cellular level during acute exposure. Barbels are specialized sensory organs among catfishes having touch and chemoreceptors. Taste buds are one of the important receptors found embedded in the epithelium of barbels which plays important role in olfaction, touch, food detection etc. Copper sulphate induced changes in barbels like inflammation in epidermis, cuticular eruption, atrophy of taste buds, hypertrophy of mucous cells, hypertrophy of club cells, necrosis and degenerative changes in epidermis and taste buds. Basement membrane also showed degenerative changes including thickening and inflammation. Atrophied sensory and taste cells, shrunken taste buds along with the broken opening were noticed. Present study is indicative that copper adversely affects sensory organs at high concentration which inturn disturbs vital activities and survival of fish.
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[Sandeep Shukla, Madhu Tripathi and Sanjive Shukla (2017); EFFECT OF ACUTE TOXICITY OF COPPER ON HISTOPATHOLOGY OF BARBEL OF STINGING CATFISH, HETEROPNEUSTES FOSSILIS (Bloch) Int. J. of Adv. Res. 5 (Apr). 1243-1249] (ISSN 2320-5407). www.journalijar.com
Department of Zoology, University of Lucknow, Lucknow-226007 (U.P.), India.