• Dr. Swapan S. Bacher

The study was carried out to find out lethal and sub-lethal effect of Zinc on the histomorphology of gill in Ophiocephalus punctatus. Zinc chloride at lethal and sub-lethal concentration caused deleterious effect on the gills. The apical region of the primary gills lamellae became herptrophied, bent and fused. The secondary gill lamellae became hypertrophied, fused and vacuolated and branchial blood vessels got damage. The pillar cells and epithelial layer of the secondary gill lamellae got damaged. Epithelial nuclei became hyper- pycnotic and degenerated. The changes were also accompanied by hyperplasia of chloride and mucous cells of secondary gill lamellae. It is concluded that zinc at lethal as well as sub lethal concentrations affect the histomorphology of gills and may severely affect the general metabolism of the body due to reduction of oxygen supply.

Short term effect of Zinc chloride in gills Histomorphology of Snake head, Ophiocephalus punctatus(Bloch)

"Short term effect of Zinc chloride in gills Histomorphology of Snake head, Ophiocephalus punctatus(Bloch)", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.9, Issue 8, page no.g248-g253, August-2022, Available :http://www.jetir.org/papers/JETIR2208631.pdf

"Short term effect of Zinc chloride in gills Histomorphology of Snake head, Ophiocephalus punctatus(Bloch)", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.9, Issue 8, page no. ppg248-g253, August-2022, Available at : http://www.jetir.org/papers/JETIR2208631.pdf