Effect of water pollutants on the histology of alimentary canal of some aquatic insects

Md.Sami^a*, S.K.Gupta^b, Chandrama Singh^c,  Ravindra Kr Sharma^d,  & O.P. Singh^a
aDepartment of Zoology, B.R.A.B.U.,Muzaffarpur-842001(India)
^bDept. of Zoology, M.J.K. College,Bettiah (West Champaran)-845 438
^cDepartment of Zoology, K.C.T.C. College, Ruxaul,  B.R.A.B.U., Muzaffarpur-842001(India)
^dPGT, DAV Public School, Muzaffarpur, Bihar, India.

Received  12th December, 2011; Revised  28th February, 2012

Abstract : Aquatic beetles Cybister confusus were collected from local pond and Kept in controlled condition and treated with DDT and Detergent. The insects were dissected  in normal saline . Gut tissue were fixed in Boin’s solution and section were prepared. The observation indicated different levels of histological changes on DDT and Detergent treatment. The changes were co- related with diet. Histological  changes were observed in Epithelial and muscular.